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| ? 2014 microchip technology inc. ds20005253a-page 1 mcp1642b/d features up to 96% typical efficiency 1.8a typical peak input current limit: -i out > 175 ma @ 1.2v v in , 3.3v v out -i out > 600 ma @ 2.4v v in , 3.3v v out -i out > 800 ma @ 3.3v v in , 5.0v v out -i out > 1a @ v in > 3.6v, 5.0v v out low start-up voltage: 0.65v, typical 3.3v v out @ 1 ma low operating input voltage: 0.35v, typical 3.3v v out @ 1 ma output voltage range: - reference voltage, v fb =1.21v - 1.8v to 5.5v for the adjustable device option - 1.8v, 3.0v, 3.3v and 5.0v for fixed v out options maximum input voltage ? v out <5.5v pwm operation: 1 mhz - low noise, anti-ringing control power good open-drain output internal synchronous rectifier internal compensation inrush current limiting and internal soft-start selectable, logic-controlled shutdown states: - true load disconnect option (mcp1642b) - input-to-output bypass option (mcp1642d) shutdown current (all states): 1 a overtemperature protection available packages: - 8-lead msop - 8-lead 2x3 dfn applications one, two and three-cell alkaline, lithium ultimate and nimh/nicd portable products single-cell li-ion to 5v converters pic ? mcu power usb emergency backup charger from batteries personal medical products wireless sensors hand-held instruments gps receivers +3.3v to +5.0v distributed power supply general description the mcp1642b/d devices are compact, high-efficiency, fixed-frequency, synchronous step-up dc-dc converters. this family of devices provides an easy-to-use power supply solution for applications powered by either one-cell, two-cell, or three-cell alkaline, ultimate lithium, nicd, nimh, one-cell li-ion or li-polymer batteries. low-voltage technology allows the regulator to start-up without high inrush current or output voltage overshoot from a low voltage input. high efficiency is accomplished by integrating the low-resistance n-channel boost switch and synchronous p-channel switch. all compensation and protection circuitry are integrated to minimize the number of external components. an open-drain power good output is provided to indicate when the output voltage is within 10% of regulation and facilitates the interface with an mcu. for standby applications, mcp1642b provides a true output disconnect from input to output while in shutdown (en = gnd). an additional device option (mcp1642d) is available and connects input to output bypass while in shutdown. both options consume less than 1 a of input current. for the adjustable (adj) device options, the output voltage is set by a small external resistor divider. fixed v out device options do not require external divider resistors. two package options, 8-lead msop and 8- lead 2x3 dfn, are available. package types pg nc v out s gnd p gnd 1 2 3 4 8 7 6 5 sw v in en ep 9 p gnd s gnd pg v fb v out s gnd p gnd 1 2 3 4 8 7 6 5 sw v in en ep 9 6 1 2 3 8 v in p gnd en v fb pg 7 s gnd 5 4 sw v out 6 1 2 3 8 v in en ncpg 7 5 4 sw v out mcp1642b/d-xx msop mcp1642b/d-xx 2x3 dfn* mcp1642b/d-adj msop mcp1642b/d-adj 2x3 dfn* * includes exposed thermal pad (ep); see tab l e 3 - 1 . 1.8a input current switch, 1 mhz low-voltage start-up synchronous boost regulator downloaded from: http:///
mcp1642b/d ds20005253a-page 2 ? 2014 microchip technology inc. typical application v in gnd v fb v out 5.0v c out 4.7...10 f c in 4.7...10 f l 4.7 h sw 976 k ? 309 k ? en v out + - alkaline 1m ? pg on off to p i c mcu i/o + - alkaline r top r bot r pg v in gnd v out 3.3v c out 4.7...10 f c in 4.7...10 f l 1 4.7 h sw en v out + - alkaline pg on off nc 0 10 20 30 40 50 60 70 80 90 100 1 10 100 1000 efficiency (%) i out (ma) v in = 2.5v, v out = 5.0v v in = 1.2v, v out = 3.3v mcp1642b-33 mcp1642d-adj from pic ? mcu i/o v in = 0.9 to 1.6v v in = 1.8 to 3.2v downloaded from: http:/// ? 2014 microchip technology inc. ds20005253a-page 3 mcp1642b/d 1.0 electrical characteristics absolute maximum ratings ? en, fb, v in, v sw , v out C gnd .......................... +6.5v en, fb ...... mcp1642b/d ds20005253a-page 4 ? 2014 microchip technology inc. quiescent current C pwm mode i qpwm 400 500 a measured at v out , en = v in , i out =0ma, note 3 quiescent current C shutdown i qshdn 1 av out = en = gnd, i out = 0 ma includes n-channel and p-channel switch leakage nmos switch leakage i nlk 0 . 5 av in =v sw =5v, v out =5.5v, v en =v fb =gnd pmos switch leakage i plk 0 . 2 av in =v sw = gnd, v out =5.5v nmos switch on resistance r ds(on)n 0 . 1 5 ? v in = 3.3v, i sw =250ma, note 5 pmos switch on resistance r ds(on)p 0 . 3 ? v in = 3.3v, i sw =250ma, note 5 nmos peak switch current limit i n(max) 1 . 8 a note 5 accuracy v fb % -3 3 % mcp1642b/d-adj, v in =1.2v v out % -3 3 % mcp1642b/d-18, v in =1.2v -3 3 % mcp1642b/d-30, v in =1.2v -3 3 % mcp1642b/d-33, v in =1.2v -3 3 % mcp1642b/d-50, v in =2.5v line regulation ??? v fb /v fb ) / ? v in | -0.5 0.01 0.5 %/v mcp1642b/d-adj, v in = 1.5v to 3.0v, i out =25ma ??? v out /v out ) / ? v in | -0.5 0.05 0.5 %/v mcp1642b/d-18, v in = 1.0v to 1.5v, i out =25ma -0.5 0.01 0.5 %/v mcp1642b/d-30, v in = 1.5v to 2.5v, i out =25ma -0.5 0.01 0.5 %/v mcp1642b/d-33, v in = 1.5v to 3.0v, i out =25ma -0.5 0.01 0.5 %/v mcp1642b/d-50, v in = 2.5v to 4.2v, i out =25ma load regulation ?? v fb /v fb | -1.5 0.05 1.5 % i out =25ma to 150ma, v in =1.5v ?? v out /v out | -1.5 0.1 1.5 % mcp1642b/d-18, v in =1.5v, i out = 25 ma to 75 ma -1.5 0.1 1.5 % mcp1642b/d-30, v in =1.5v, i out =25ma to 125ma -1.5 0.1 1.5 % mcp1642b/d-33, v in =1.5v, i out =25ma to 150ma 0.5 % mcp1642b/d-50, v in =3.0v, i out =25ma to 500ma, note 5 dc characteristics (continued) electrical characteristics: unless otherwise indicated, v in = 1.2v, c out =c in =10f, l=4.7h, v out =3.3v, i out =15ma, t a = +25c, mcp1642b/d-adj. boldface specifications apply over the t a range of -40 c to +85 c. parameters sym. min. typ. max. units conditions note 1: resistive load, 1 ma. 2: for v in >v out , v out will not remain in regulation. 3: i qpwm is measured from v out ; v out is externally supplied with a voltage higher than the nominal 3.3v output (device is not switching), no load. v in quiescent current will vary with boost ratio. v in quiescent current can be estimated by: (i qpwm *(v out /v in )). 4: 220 ? resistive load, 3.3v v out (15 ma). 5: determined by characterization, not production tested. downloaded from: http:/// ? 2014 microchip technology inc. ds20005253a-page 5 mcp1642b/d maximum duty cycle dc max 9 0 % note 5 switching frequency f sw 0.85 1.0 1.15 mhz note 5 , i out = 65 ma, for mcp1642b/d-50 v in = 2.5v en input logic high v ih 75 % o f v in i out =1ma, for mcp1642b/d-50 v in = 2.5v en input logic low v il 20 % of v in i out =1ma, for mcp1642b/d-50 v in = 2.5v en input leakage current i enlk 0 . 1 av en =1.2v power good threshold pg thf 9 0 %v fb falling, note 5 power good hysteresis pg hys 3 % note 5 power good output low pg low 0 . 4 vi sink =5ma, v fb =0v, note 5 power good output delay pg delay 6 0 0 s note 5 power good output response pg res 2 5 0 s note 5 power good input voltage operating range v pg_vin 0.9 5.5 v i sink =5ma, v fb =0v, note 5 power good leakage current pg leak 0 . 0 1 av pg =5.5v, v out in regulation, note 5 soft start time t ss 550 s en low to high, 90% of v out , note 4 , note 5 thermal shutdown die temperature t sd 1 5 0 ? c note 5 die temperature hysteresis t sdhys 3 5 ? c note 5 temperature specifications electrical characteristics: unless otherwise indicated, v in = 1.2v, c out =c in =10f, l=4.7h, v out =3.3v, i out =15ma, t a =+25c. parameters sym. min. typ. max. units conditions temperature ranges operating ambient temperature range t a -40 +85 c steady state storage temperature range t a -65 +150 c maximum junction temperature t j +150 c transient package thermal resistances thermal resistance, 8l-msop ? ja 2 1 1 c / w thermal resistance, 8l-2x3 dfn ? ja 6 8 c / w dc characteristics (continued) electrical characteristics: unless otherwise indicated, v in = 1.2v, c out =c in =10f, l=4.7h, v out =3.3v, i out =15ma, t a = +25c, mcp1642b/d-adj. boldface specifications apply over the t a range of -40 c to +85 c. parameters sym. min. typ. max. units conditions note 1: resistive load, 1 ma. 2: for v in >v out , v out will not remain in regulation. 3: i qpwm is measured from v out ; v out is externally supplied with a voltage higher than the nominal 3.3v output (device is not switching), no load. v in quiescent current will vary with boost ratio. v in quiescent current can be estimated by: (i qpwm *(v out /v in )). 4: 220 ? resistive load, 3.3v v out (15 ma). 5: determined by characterization, not production tested. downloaded from: http:/// mcp1642b/d ds20005253a-page 6 ? 2014 microchip technology inc. notes: downloaded from: http:/// ? 2014 microchip technology inc. ds20005253a-page 7 mcp1642b/d 2.0 typical performance curves note: unless otherwise indicated, v in =en=1.2v, c out =c in =10f, l=4.7h, v out =3.3v, i load =15ma, t a = +25c (mcp1642b/d-adj, msop-8 package). figure 2-1: v out i qpwm vs. ambient temperature. figure 2-2: 3.3v v out vs. ambient temperature. figure 2-3: 5.0v v out vs. ambient temperature. figure 2-4: 2.0v v out mode efficiency vs. i out . figure 2-5: 3.3v v out mode efficiency vs. i out . figure 2-6: 5.0v v out mode efficiency vs. i out . note: the graphs and tables provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. the performance characteristics listed herein are not tested or guaranteed. in some graphs or tables, the data presented may be outside the specified operating range (e.g., outside specified power supply range) and therefore outside the warranted range. 300 325 350 375 400 425 450 475 500 -40 -25 -10 5 20 35 50 65 80 i q pwm mode (a) ambient temperature (c) v out = 3.3v v out = 5.0v v in = 1.2v v out = 2.0v 3.304 3.306 3.308 3.310 3.312 3.314 -40 -25 -10 5 20 35 50 65 80 v out (v) ambient temperature (c) i out = 50 ma v in = 1.8v v in = 1.2v 4.980 4.985 4.990 4.995 5.000 5.005 5.010 -40 -25 -10 5 20 35 50 65 80 v out (v) ambient temperature (c) v in = 2.5v i out = 50 ma v in = 1.8v 0 10 20 30 40 50 60 70 80 90 100 0.1 1 10 100 1000 efficiency (%) i out (ma) v out = 2.0v v in = 1.2v v in = 1.6v 0 10 20 30 40 50 60 70 80 90 100 0.1 1 10 100 1000 efficiency (%) i out (ma) v out = 3.3v v in = 1.2v v in = 2.5v 0 10 20 30 40 50 60 70 80 90 100 0.1 1 10 100 1000 efficiency (%) i out (ma) v out = 5.0v v in = 2.5v v in = 3.6v downloaded from: http:/// mcp1642b/d ds20005253a-page 8 ? 2014 microchip technology inc. note: unless otherwise indicated, v in =en=1.2v, c out =c in =10f, l=4.7h, v out =3.3v, i load =15ma, t a = +25c (mcp1642b/d-adj, msop-8 package). figure 2-7: maximum i out vs. v in . figure 2-8: 3.3v v out vs. v in . figure 2-9: 3.3v v out minimum start-up and shutdown v in into resistive load vs. i out . figure 2-10: 5.0v v out minimum start-up and shutdown v in into resistive load vs. i out . figure 2-11: f sw vs. ambient temperature. figure 2-12: pwm pulse-skipping mode threshold vs. i out . 0 200 400 600 800 1000 1200 1400 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6 4 4.4 i out (ma) v in (v) v out = 3.3v v out = 2.0v v out = 5.0v t a = +25 c t a = +85 c 3.290 3.292 3.294 3.296 3.298 3.300 3.302 3.304 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3 v out (v) v in (v) t a =-40c i out = 15 ma t a = 25c t a = 85c 0.30 0.35 0.40 0.45 0.50 0.55 0.60 0.65 0.70 0 2 04 06 08 01 0 0 v in (v) i out (ma) start-up shutdown v out = 3.3v 0.30 0.50 0.70 0.90 1.10 1.30 1.50 0 2 04 06 08 01 0 0 v in (v) i out (ma) start-up shutdown v out = 5.0v 988 992 996 1000 1004 -40 -25 -10 5 20 35 50 65 80 switching frequency (khz) ambient temperature (c) v out = 3.3v 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 0 5 10 15 20 25 v in (v) i out (ma) v out = 3.3v v out = 5.0v v out = 2.0v downloaded from: http:/// ? 2014 microchip technology inc. ds20005253a-page 9 mcp1642b/d note: unless otherwise indicated, v in =en=1.2v, c out =c in =10f, l=4.7h, v out =3.3v, i load =15ma, t a = +25c (mcp1642b/d-adj, msop-8 package). figure 2-13: average of no load input current vs. v in . figure 2-14: n-channel and p-channel r dson vs. > of v in or v out . figure 2-15: mcp1642b/d 3.3v v out light load pwm mode waveforms. figure 2-16: mcp1642b/d high load pwm mode waveforms. figure 2-17: 3.3v start-up after enable. figure 2-18: 3.3v start-up when v in =v enable . 0.1 1 10 100 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6 4 4.4 i in (ma) v in (v) v out = 2.0v v out = 3.3v v out = 5.0v 0 0.05 0.1 0.15 0.2 0.25 0 0.5 1 1.5 2 2.5 1 1.4 1.8 2.2 2.6 3 3.4 3.8 4.2 switch resistance ( : ) > v in or v out p - channel n - channel i out =1ma 1s/div v out 20 mv/div ac coupled i l v sw 1v/div 100 ma/div i out =100ma v sw i l 1s/div v out 20 mv/div ac coupled 2v/div 200 ma/div i out =15ma v out 1v/div v en 1v/div 200 s/div v in 1v/div i l 200 ma/div 2v/div v out 200 s/div 1v/div v in i = 15 ma out downloaded from: http:/// mcp1642b/d ds20005253a-page 10 ? 2014 microchip technology inc. note: unless otherwise indicated, v in =en=1.2v, c out =c in =10f, l=4.7h, v out =3.3v, i load =15ma, t a = +25c (mcp1642b/d-adj, msop-8 package). figure 2-19: mcp1642b 3.3v v out load transient waveforms. figure 2-20: 3.3v v out line transient waveforms. i out 100 ma/div step from 20 ma to 150 ma 400 s/div v out 100 mv/div ac coupled v in 1v/div step from 1.2v to 2.4v 400 s/div v out 100 mv/div ac coupled downloaded from: http:/// ? 2014 microchip technology inc. ds20005253a-page 11 mcp1642b/d 3.0 pin descriptions the descriptions of the pins are listed in tab l e 3 - 1 . 3.1 enable pin (en) the en pin is a logic-level input used to enable or disable device switching and lower quiescent current while disabled. a logic high (>75% of v in ) will enable the regulator output. a logic low (<20% of v in ) will ensure that the regulator is disabled. 3.2 feedback voltage pin (v fb ) the v fb pin is used to provide output voltage regulation by using a resistor divider for the adj device option. the typical feedback voltage will be 1.21v, with the output voltage in regulation. 3.3 power good pin (pg) the power good pin is an open-drain output which can be tied to v out using a pull-up resistor. it turns low when v out drops below 10% of its nominal value. 3.4 output voltage pin (v out ) the output voltage pin connects the integrated p-channel mosfet to the output capacitor. the fb voltage divider is also connected to the v out pin for voltage regulation for the adj option. 3.5 switch node pin (sw) connect the inductor from the input voltage to the sw pin. the sw pin carries inductor current and can be as high as 1.8a peak. the integrated n-channel switch drain and integrated p-channel switch source are internally connected at the sw node. 3.6 power ground pin (p gnd ) the power ground pin is used as a return for the high-current n-channel switch. the p gnd and s gnd pins are connected externally. 3.7 signal ground pin (s gnd ) the signal ground pin is used as a return for the integrated v ref and error amplifier. the s gnd and power ground (p gnd ) pins are connected externally. 3.8 power supply input voltage pin (v in ) connect the input voltage source to v in . the input source should be decoupled to gnd with a 4.7 f minimum capacitor. 3.9 exposed thermal pad (ep) there is no internal electrical connection between the exposed thermal pad (ep) and the s gnd and p gnd pins. they must be connected to the same electric potential on the printed circuit board (pcb). table 3-1: pin function table mcp1642b/d-xx msop, 2x3 dfn mcp1642b/d-adj msop, 2x3 dfn symbol description 1 1 en enable pin. logic high enables operation. do not allow this pin to float. 2 nc not connected. 2 v fb reference voltage pin. connect v fb to an external resistor divider to set the output voltage (for fixed v out options, this pin is not connected). 3 3 pg open-drain power good pin. indicates when the output voltage is within regulation. 44 v out boost converter output. 5 5 sw boost and rectifier switch input. connect boost inductor between sw and v in . 66 p gnd power ground reference. 77 s gnd signal ground reference. 88 v in input supply voltage. local bypass capacitor required. 9 9 ep exposed thermal pad (2x3 dfn only). downloaded from: http:/// mcp1642b/d ds20005253a-page 12 ? 2014 microchip technology inc. notes: downloaded from: http:/// ? 2014 microchip technology inc. ds20005253a-page 13 mcp1642b/d 4.0 detailed description 4.1 device option overview the mcp1642b/d family of devices is capable of low start-up voltage and delivers high efficiency over a wide load range for single-cell, two-cell, three-cell alkaline, ultimate lithium, nimh, nicd and single-cell li-ion battery inputs. a high level of integration lowers total system cost, eases implementation and reduces board area. the devices feature low start-up voltage, fixed and adjustable output voltage, pwm mode operation, integrated synchronous switch, internal compensation, low noise anti-ringing control, inrush current limit and soft start. there are two shutdown options for the mcp1642b/d family: true output disconnect mode (mcp1642b) input-to-output bypass mode (mcp1642d) 4.1.1 true output disconnect mode option the mcp1642b device incorporates a true output disconnect feature. with the en pin pulled low, the output of the mcp1642b is isolated or disconnected from the input by turning off the integrated p-channel switch and removing the switch bulk diode connection. this removes the dc path that is typical in boost converters, which allows the output to be disconnected from the input. during this mode, less than 1 a of current is consumed from the input (battery). true output disconnect does not discharge the output. 4.1.2 input-to-output bypass mode option the mcp1642d device incorporates the input-to-output bypass shutdown option. with the en input pulled low, the output is connected to the input using the internal p-channel mosfet. in this mode, the current drawn from the input (battery) is less than 1 a with no load. the input-to-output bypass mode is used when the input voltage is high enough for the load to operate (e.g. pic mcu operating in sleep mode). when a higher regulated output voltage and load current are necessary, the en pin must be pulled high, enabling the boost converter. 4.1.3 adjustable output voltage option for the mcp1642b/d adj option, the output voltage is adjustable with a resistor divider over a 1.8v minimum to 5.5v maximum range. the middle point of the resistor divider connects to the v fb pin. high-value resistors are recommended to minimize quiescent current to keep efficiency high at light loads. the reference voltage is v fb = 1.21v. 4.1.4 fixed output voltage option for the fixed output voltage option of the mcp1642b/d devices, the v fb pin is not connected. there is an internal feedback divider which minimizes quiescent current to keep efficiency high at light loads. the value of the internal divider is 815 k ? typical. the fixed set values are: 1.8v, 3.0v, 3.3v and 5.0v. table 4-1: part number selection by shutdown option part number true output disconnect input-to-output bypass mcp1642b-adj (or -18; 30; 33; 50) x mcp1642d-adj (or -18; 30; 33; 50) x downloaded from: http:/// mcp1642b/d ds20005253a-page 14 ? 2014 microchip technology inc. 4.2 functional description the mcp1642b/d devices are compact, high-efficiency, fixed-frequency, step-up dc-dc converters that provide an easy-to-use power supply solution for applications powered by either one-cell, two-cell, or three-cell alkaline, ultimate lithium, nicd, or nimh, or one-cell li-ion or li-polymer batteries. figure 4-1 depicts the functional block diagram of the mcp1642b/d devices. figure 4-1: mcp1642b/d block diagram. en p gnd 0v soft-start oscillator s 1.21v sw ea v fb 0.9 x v ref pg * s gnd v out v in internal bias gate drive and shutdown control logic direction control i zero i limit i sense slope compensation pwm logic v out v fb (nc) * available in fixed output option only. see section 4.2.4 ?fixed output voltage? . oc ref downloaded from: http:/// ? 2014 microchip technology inc. ds20005253a-page 15 mcp1642b/d 4.2.1 low-voltage start-up the mcp1642b/d devices are capable of starting from a low input voltage. start-up voltage is typically 0.65v for a 3.3v output and 1 ma resistive load. when enabled, the internal start-up logic turns the rectifying p-channel switch on until the output capacitor is charged to a value close to the input voltage. during this period, the rectifying switch is current-limited at approximately 125 ma, which limits the start-up under heavy resistive load condition. after charging the output capacitor to the input voltage, the device starts switching. a ring oscillator is only used until the main rc oscillator has enough bias and is ready. the device runs open-loop until the output rises enough to start the rc oscillator. during this time, the boost switch current is limited to 50% of its nominal value. once the output voltage reaches a high value, normal closed-loop pwm operation is initiated. then, during the end sequence of the start-up, the mcp1642b/d devices charge an internal capacitor with a very weak current source. the voltage on this capacitor, in turn, slowly ramps the current limit of the boost switch to its nominal value (1.8a typical). the soft-start capacitor is completely discharged in the event of a commanded shutdown or a thermal shutdown. there is no undervoltage lockout feature for the mcp1642b/d devices. the devices will start up at the lowest possible voltage and run down to the lowest possible voltage. for typical battery applications, deeply discharged batteries may result in "motor-boating" (emission of a low-frequency tone). 4.2.2 pwm mode operation in normal pwm operation, the mcp1642b/d devices operate as fixed-frequency, synchronous boost converters. the switching frequency is internally maintained with a precision oscillator typically set to 1 mhz. at light loads, the mcp1642b/d devices begin to skip pulses. figure 2-12 represents the input voltage versus load current for the pulse-skipping threshold in pwm mode. by operating in pwm-only mode, the out- put ripple remains low and the frequency is constant. operating in fixed pwm mode results in low efficiency during light load operation but has low output ripple and noise for the supplied load. lossless current sensing converts the peak current signal to a voltage to sum with the internal slope compensation. this summed signal is compared to the voltage error amplifier output to provide a peak current control command for the pwm signal. the slope compensation is adaptive to the input and output voltage. therefore, the converter provides the proper amount of slope compensation to ensure stability, but is not excessive, which causes a loss of phase margin. the peak current limit is set to 1.8a typical. 4.2.3 adjustable output voltage the mcp1642b/d-adj output voltage is adjustable with a resistor divider over a 1.8v minimum to 5.5v maximum range. high-value resistors are recommended to minimize quiescent current to keep efficiency high at light loads. 4.2.4 fixed output voltage mcp1642b/d-xx has the feedback divider included. four output values are available: 1.8v, 3.0v, 3.3v and 5.0v. for this option, pin 2 remains unconnected. the value of the internal divider is 815 k ? typical. 4.2.5 maximum output voltage the maximum output current of the devices is dependent upon the input and output voltage. for example, to ensure a 200 ma load current for v out = 3.3v, a typical value of 1.3v input voltage is necessary. if an application is powered by one li-ion battery (v in from 3.0v to 4.2v), the typical load current the mcp1642b/d devices can deliver is close to 800 ma at 5.0v output (see figure 2-7 ). 4.2.6 enable pin the enable pin is used to turn the boost converter on and off. the enable threshold voltage varies with input voltage. to enable the boost converter, the en voltage level must be greater than 75% of the v in voltage. to disable the boost converter, the en voltage must be less than 20% of the v in voltage. 4.2.7 power good output pin the mcp1642b/d devices have an internal comparator which is triggered when v out reaches 90% of regulation. an open-drain transistor allows interfacing with an mcu. it can sink up to a few ma from the power line at which the pull-up resistor is connected. see the dc characteristics table for details. 4.2.8 internal bias the mcp1642b/d devices get their start-up bias from v in . once the output exceeds the input, bias comes from the output. therefore, once started, operation is completely independent of v in . operation is only limited by the output power level and the input source series resistance. when started, the output will remain in regulation down to 0.35v typical with 1 ma output current for low source impedance inputs. downloaded from: http:/// mcp1642b/d ds20005253a-page 16 ? 2014 microchip technology inc. 4.2.9 internal compensation the error amplifier, with its associated compensation network, completes the closed-loop system by comparing the output voltage to a reference at the input of the error amplifier, and feeding the amplified and inverted signal to the control input of the inner current loop. the compensation network provides phase leads and lags at appropriate frequencies to cancel excessive phase lags and leads of the power circuit. all necessary compensation components and slope compensation are integrated. 4.2.10 short-circuit protection unlike most boost converters, the mcp1642b/d devices allow their output to be shorted during normal operation. the internal current limit and overtemperature protection limit excessive stress and protect the device during periods of short circuit, overcurrent and overtemperature. while operating in the input-to-output bypass mode, the p-channel current limit is inhibited to minimize quiescent current. 4.2.11 low noise operation the mcp1642b/d devices integrate a low-noise anti-ring switch that damps the oscillations typically observed at the switch node of a boost converter when operating in the discontinuous inductor current mode. this removes the high-frequency radiated noise. 4.2.12 overtemperature protection overtemperature protection circuitry is integrated into the mcp1642b/d devices. this circuitry monitors the device junction temperature and shuts the device off if the junction temperature exceeds the typical +150 c threshold. if this threshold is exceeded, the device will automatically restart when the junction temperature drops by 35 c. the soft start is reset during an overtemperature condition. downloaded from: http:/// ? 2014 microchip technology inc. ds20005253a-page 17 mcp1642b/d 5.0 application information 5.1 typical applications the mcp1642b/d synchronous boost regulators oper- ate over a wide input and output voltage range. the power efficiency is high for several decades of load range. output current capability increases with the input voltage and decreases with the increasing output voltage. the maximum output current is based on the n-channel peak current limit. typical characterization curves in this data sheet are presented to display the typical output current capability. 5.2 adjustable output voltage calculations to calculate the resistor divider values for the mcp1642b/d, the following equation can be used. where r top is connected to v out , r bot is connected to gnd and both are connected to the v fb input pin: equation 5-1: there are some potential issues with higher-value resistors. for small surface-mount resistors, environment contamination can create leakage paths that significantly change the resistive divider ratio, which in turn affects the output voltage. the fb input leakage current can also impact the divider and change the output voltage tolerance. for boost converters, the removal of the feedback resistors during operation must be avoided. in this case, the output voltage will increase above the abso- lute maximum output limits of the mcp1642b/d and damage the device (for additional information, see application note an1337). overshoots and undershoots on pulsed load applications are reduced by adding a zero in the compensation loop. a small capacitance (for example, 27 or 33 pf) in parallel with an upper feedback resistor will reduce output spikes. this small capacitance also attenuates the low-frequency component on the output ripple that might appear when the device supplies light loads (ranging from 75 to 150 ma) and on condition that (v out Cv in ) < 0.6v (see the application example in figure 6-1 ). 5.2.1 v in >v out situation for v in >v out , the output voltage will not remain in regulation. v in >v out is an unusual situation for a boost converter, and there is a common issue when two alkaline cells (2 x 1.6v typical) are used to boost to 3.0v output. a minimum headroom of approximately 200 to 300 mv between v out and v in must be ensured, unless a low frequency higher than the pwm output ripple on v out is expected. this ripple and its frequency are v in dependent. 5.3 power good output the power good output is meant to provide a method that gives information about the output state of the device. the power good comparator is triggered when v out reaches approximately 90% of regulation (on the falling edge). the pg pin is an open-drain output, which should be connected to v out through an external pull-up resistor. it is recommended to use a high-value resistor (to sink a from output) in order to use less power while interfacing with an i/o pic mcu port. the power good block is internally supplied by the maximum between the input and output voltage, and the minimum voltage necessary is 0.9v. this is important for applications in which the power good pin is pulled-up to an external supply. if the output voltage is less than 0.9v (e.g., due to an overcurrent situation or an output short circuit, and also if the device is in shutdown - en = gnd), the input voltage has to be high enough to drive the power good circuitry. power good delay time is measured between the time when v out starts to regulate and the time when there is a response from power good output. power good response time is measured between the time when v out goes out of regulation with a 10% drop, and the time when power good output gets to a low level. both power good delay time and power good response time are specified in the dc characteristics table. additionally, there are no blanking time or delays; there is only a 3% hysteresis of the power good comparator. due to the dynamic response, mcu must interpret longer transients. example 1: v out =3.3v v fb = 1.21v r bot =309k ? r top =533.7k ? (standard value = 536 k ? ) example 2: v out =5.0v v fb = 1.21v r bot =309k ? r top =967.9k ? (standard value = 976 k ? ) r top r bot v out v fb ------------ -1 ? ?? ?? ? = downloaded from: http:/// mcp1642b/d ds20005253a-page 18 ? 2014 microchip technology inc. when v out resumes to a value higher than 93%, the pg pin switches to high level. figure 5-1: power good timing diagram . 5.4 input capacitor selection the boost input current is smoothed by the boost inductor, reducing the amount of filtering necessary at the input. some capacitance is recommended to provide decoupling from the source. low esr x5r or x7r are well suited, since they have a low temperature coefficient and small size. for light-load applications, 4.7 f of capacitance is sufficient at the input. for high-power applications that have high source impedance or long leads which connect the battery to the input, 10 f of capacitance is recommended. additional input capacitance can be added to provide a stable input voltage. table 5-1 contains the recommended range for the input capacitor value. 5.5 output capacitor selection the output capacitor helps provide a stable output voltage during sudden load transients and reduces the output voltage ripple. as with the input capacitor, x5r and x7r ceramic capacitors are well suited for this application. using other capacitor types (aluminum or tantalum) with large esr has impact on the converter's efficiency (see an1337) and maximum output power. the mcp1642b/d devices are internally compensated, so output capacitance range is limited. see table 5-1 for the recommended output capacitor range. an output capacitance higher than 10 f adds a better load step response and high-frequency noise attenuation, especially while stepping from light current loads to heavy current loads. in addition, 2 x 10 f output capacitors ensure a better recovery of the output after a short period of overloading. while the n-channel switch is on, the output current is supplied by the output capacitor c out . the amount of output capacitance and equivalent series resistance will have a significant effect on the output ripple voltage. while c out provides load current, a voltage drop also appears across its internal esr that results in ripple voltage. equation 5-2: table 5-1 contains the recommended range for the input and output capacitor value. 5.6 inductor selection the mcp1642b/d devices are designed to be used with small surface-mount inductors; the inductance value can range from 2.2 h to 6.8 h. an inductance value of 4.7 h is recommended to achieve a good balance between the inductor size, the converter load transient response and the minimized noise. several parameters are used to select the correct inductor: maximum rated current, saturation current and copper resistance (esr). for boost converters, the inductor current can be much higher than the output current. the lower the inductor esr, the higher the efficiency of the converter: a common trade-off in size versus efficiency. the saturation current typically specifies a point at which the inductance has rolled off a percentage of the rated value. this can range from a 20% to 40% reduction in inductance. as inductance rolls off, the inductor ripple current increases, as does the peak switch current. it is important to keep the inductance from rolling off too much, causing switch current to reach the peak limit. pg response pg delay v out pg 600 s (typ.) 250 s (typ.) table 5-1: capacitor value range c in c out minimum 4.7 f 10 f maximum 100 f table 5-2: mcp1642b/d recommended inductors part number value (h) dcr ? (typ.) i sat (a) size wxlxh (mm) coilcraft lps4018-472 4.7 0.125 1.9 4.1x4.1x1.8 xfl4020-472 4.7 0.057 2.7 4.2x4.2x2.1 lps5030-472 4.7 0.083 2 5x5x3 lps6225-472 4.7 0.065 3.2 6.2x6.2x2.5 mss6132-472 4.7 0.043 2.84 6.1x6.1x3.2 wrth elektronik 744025004 type we-tpc 4.7 0.1 1.7 2.8x2.8x2.8 744042004 we-tpc 4.7 0.07 1.65 4.8x4.8x1.8 744052005 we-tpc 5 0.047 1.8 5.8x5.8x1.8 7447785004 we-pd 4.7 0.06 2.5 6.2x5.9x3.3 tdk/epcos b82462a2472m000 4.7 0.084 2.00 6.0x6.0x2.5 b82462g4472m 4.7 0.04 1.8 6.3x6.3x3.0 i out c out dv dt ------ - ?? ?? ? = where: dv = ripple voltage dt = on time of the n-channel switch (dc x 1/f sw ) downloaded from: http:/// ? 2014 microchip technology inc. ds20005253a-page 19 mcp1642b/d 5.7 thermal calculations the mcp1642b/d devices are available in two different packages (msop-8 and 2 x 3 dfn-8). by calculating the power dissipation and applying the package thermal resistance ( ? ja ), the junction temperature is estimated. the maximum continuous junction temperature rating for the mcp1642b/d family of devices is +125 c. to quickly estimate the internal power dissipation for the switching boost regulator, an empirical calculation using measured efficiency can be used. given the measured efficiency, the internal power dissipation is estimated by equation 5-3 . equation 5-3: the difference between the first term, input power, and the second term, power delivered, is the power dissipa- tion of the mcp1642b/d devices. this is an estimate assuming that most of the power lost is internal to the mcp1642b/d and not c in , c out and the inductor. there is some percentage of power lost in the boost inductor, with very little loss in the input and output capacitors. for a more accurate estimation of internal power dissipation, subtract the i inrms 2 xl esr power dissipation. 5.8 pcb layout information good printed circuit board layout techniques are important to any switching circuitry, and switching power supplies are no different. when wiring the switching high-current paths, short and wide traces should be used. therefore, it is important that the input and output capacitors be placed as close as possible to the mcp1642b/d to minimize the loop area. the feedback resistors and feedback signal should be routed away from the switching node and the switching current loop. when possible, ground planes and traces should be used to help shield the feedback signal and minimize noise and magnetic interference. figure 5-2: mcp1642b/d recommended layout, applicable to both packages. v out i out ? efficiency -------------------------------- ?? ?? v out i out ? ?? ? p dis = c out l c in +v in +v out mcp1642 enable r bot gnd via to bottom plane 1 r top power good downloaded from: http:/// mcp1642b/d ds20005253a-page 20 ? 2014 microchip technology inc. 6.0 typical application circuits figure 6-1: portable usb powered by li-ion. figure 6-2: portable usb powered by two energizer ? max ? aa or energizer ? ultimate lithium aa batteries with the 5.0v fixed option of the mcp1642b. v in p gnd v fb sw v in 3.3v to 4.2v v out 5.0v @ min. 500 ma c out 10 f c in 10 f l 4.7 h v out + - 976 k ? 309 k ? s gnd li-ion en pg c c 27 pf r bot r top mcp1642b-adj v in p gnd pg sw v in 1.8v to 3.6v v out 5.0v @ min. 500 ma c out 10 f c in 10 f l 4.7 h v out + - s gnd en + - nc 12.7 1.8 0.3 28.7 5.8 2.3 0.0 5.0 10.0 15.0 20.0 25.0 30.0 50 ma 250 ma 500 ma service estimate (hours) constant output current with 5v dc v out energizer? max? aa energizer? ultimate lithium aa energizer ? ultimate lithium aa energizer ? max ? aa note: service estimates apply to using two energizer ? max ? aa or energizer ? ultimate lithium aa batteries as the power source. note that, if pg or feedback divider network is used, some additional input drain current should be included, but there will be negligible effects on the service estimates at these three load currents. mcp1642b-50 downloaded from: http:/// ? 2014 microchip technology inc. ds20005253a-page 21 mcp1642b/d 7.0 packaging information 7.1 package marking information 8-lead dfn (2x3x0.9 mm) example part number code mcp1642b-18i/mc ajy mcp1642bt-18i/mc ajy mcp1642b-30i/mc aju mcp1642bt-30i/mc aju mcp1642b-33i/mc ajq mcp1642bt-33i/mc ajq mcp1642b-50i/mc ajl mcp1642bt-50i/mc ajl mcp1642b-adji/mc akc mcp1642bt-adji/mc akc mcp1642d-18i/mc aka mcp1642dt-18i/mc aka mcp1642d-30i/mc ajw mcp1642dt-30i/mc ajw mcp1642d-33i/mc ajs mcp1642dt-33i/mc ajs mcp1642d-50i/mc ajn mcp1642dt-50i/mc ajn mcp1642d-adji/mc ake mcp1642dt-adji/mc ake ajy 348 25 legend: xx...x customer-specific information y year code (last digit of calendar year) yy year code (last 2 digits of calendar year) ww week code (week of january 1 is week 01) nnn alphanumeric traceability code pb-free jedec ? designator for matte tin (sn) * this package is pb-free. the pb-free jedec designator ( ) can be found on the outer packaging for this package. note : in the event the full microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. 3 e 3 e 8-lead msop (3x3 mm) example 42b50i 348256 downloaded from: http:/// mcp1642b/d ds20005253a-page 22 ? 2014 microchip technology inc. ! " #$ %! & '(!%&! %( % ")%% % " * & & # "% ( % " + * ) ! % " & "% ,- . /01 / & % # % ! ))%!%% ,21 $ & '! ! )%!%% '$$& % ! 2% & %! % * " ) ' % * $ % % " % %% 133))) & &3 * 4% 55,, & 5&% 6 67 8 6!&( $ 6 9 % ./0 7 : % 9 % "$$ . 0% %* + ,2 7 5 % /0 7 ;"% , + /0 ,# " "5 % + < .. ,# " ";"% , . < . 0% %;"% ( . + 0% %5 % 5 + . 0% % % ,# " " = < < d n e note 1 1 2 exposed pad note 1 2 1 d2 k l e2 n e b a3 a1 a note 2 bottom view top view ) 0 +0 downloaded from: http:/// ? 2014 microchip technology inc. ds20005253a-page 23 mcp1642b/d note: for the most current package drawings, please see the microchip packaging specification located at http://www.microchip.com/packaging downloaded from: http:/// mcp1642b/d ds20005253a-page 24 ? 2014 microchip technology inc. note: for the most current package drawings, please see the microchip packaging specification located at http://www.microchip.com/packaging downloaded from: http:/// ? 2014 microchip technology inc. ds20005253a-page 25 mcp1642b/d note: for the most current package drawings, please see the microchip packaging specification located at http://www.microchip.com/packaging downloaded from: http:/// mcp1642b/d ds20005253a-page 26 ? 2014 microchip technology inc. note: for the most current package drawings, please see the microchip packaging specification located at http://www.microchip.com/packaging downloaded from: http:/// ? 2014 microchip technology inc. ds20005253a-page 27 mcp1642b/d appendix a: revision history revision a (december 2014) original release of this document. downloaded from: http:/// mcp1642b/d ds20005253a-page 28 ? 2014 microchip technology inc. notes: downloaded from: http:/// ? 2014 microchip technology inc. ds20005253a-page 29 mcp1642b/d product identification system to order or obtain information, e.g., on pricing or delivery, contact your loca l microchip representative or sales office . examples: a) mcp1642b-18i/mc: indu strial temperature, 8ld 2x3 dfn package b) mcp1642bt-18i/mc: tape and reel, industrial temperature, 8ld 2x3 dfn package c) mcp1642b-adji/mc: industrial temperature, 8ld 2x3 dfn package d) mcp1642bt-adji/mc: tape and reel, industrial temperature, 8ld 2x3 dfn package e) mcp1642b-18i/ms: industrial temperature, 8ld msop package f) mcp1642bt-18i/ms: tape and reel, industrial temperature, 8ld msop package g) mcp1642b-adji/ms: industrial temperature, 8ld msop package h) mcp1642bt-adji/ms: tape and reel, industrial temperature, 8ld msop package a) mcp1642d-18i/mc: industrial temperature, 8ld 2x3 dfn package b) mcp1642dt-18i/mc: tape and reel, industrial temperature, 8ld 2x3 dfn package c) mcp1642d-adji/mc: industrial temperature, 8ld 2x3 dfn package d) mcp1642dt-adji/mc: tape and reel, industrial temperature, 8ld 2x3 dfn package e) mcp1642d-18i/ms: industrial temperature, 8ld msop package f) mcp1642dt-18i/ms: tape and reel, industrial temperature, 8ld msop package g) mcp1642d-adji/ms: industrial temperature, 8ld msop package h) mcp1642dt-adji/ms: tape and reel, industrial temperature, 8ld 2x3 msop package part no. x /xx package temperature range device device: mcp1642b: 1a, 1 mhz low voltage start-up synchronous boost regulator with true disconnect output mcp1642d: 1a, 1 mhz low voltage start-up synchronous boost regulator with input to output bypass output voltage: 18 = 1.8v 30 = 3.0v 33 = 3.3v 50 = 5.0v adj = adjustable output voltage temperature range: i= - 4 0 ? c to +85 ? c (industrial) package: mc = plastic dual flat, no lead C 2x3x0.9 mm body (dfn) ms = plastic micro small outline (msop) [x] (1) tape and reel note 1: tape and reel identifier only appears in the catalog part number description. this identifier is used for ordering purposes and is not printed on the device package. check with your microchip sales office for package availability with the tape and reel option. x output voltage downloaded from: http:/// mcp1642b/d ds20005253a-page 30 ? 2014 microchip technology inc. notes: downloaded from: http:/// ? 2014 microchip technology inc. ds20005253a-page 31 information contained in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates. it is your responsibility to ensure that your application meets with your specifications. microchip makes no representations or warranties of any kind whether express or implied, written or oral, statutory or otherwise, related to the information, including but not limited to its condition, quality, performance, merchantability or fitness for purpose . microchip disclaims all liability arising from this information and its use. use of microchip devices in life support and/or safety applications is entirely at the buyers risk, and the buyer agrees to defend, indemnify and hold harmless microchip from any and all damages, claims, suits, or expenses resulting from such use. no licenses are conveyed, implicitly or otherwise, under any microchip intellectual property rights. trademarks the microchip name and logo, the microchip logo, dspic, flashflex, flexpwr, jukeblox, k ee l oq , k ee l oq logo, kleer, lancheck, medialb, most, most logo, mplab, optolyzer, pic, picstart, pic 32 logo, righttouch, spynic, sst, sst logo, superflash and uni/o are registered trademarks of microchip tec hnology incorporated in the u.s.a. and other countries. the embedded control solutions company and mtouch are registered trademarks of microchip technology incorporated in the u.s.a. analog-for-the-digital age, bodycom, chipkit, chipkit logo, codeguard, dspicdem, dspicdem.net, ecan, in-circuit serial programming, icsp, inter-chip connectivity, kleernet, kleernet logo, miwi, mpasm, mpf, mplab certified logo, mplib, mplink, multitrak, netdetach, omniscient code generation, picdem, picdem.net, pickit, pictail, righttouch logo, real ice, sqi, serial quad i/o, total endurance, tsharc, usbcheck, varisense, viewspan, wiperlock, wireless dna, and zena are trademarks of microchip technology incorporated in the u.s.a. and other countries. sqtp is a service mark of microchip technology incorporated in the u.s.a. silicon storage technology is a registered trademark of microchip technology inc. in other countries. gestic is a registered trademar ks of microchip technology germany ii gmbh & co. kg, a subsidiary of microchip technology inc., in other countries. all other trademarks mentioned herein are property of their respective companies. ? 2014, microchip technology incorporated, printed in the u.s.a., all rights reserved. isbn: 978-1-63276-905-3 note the following details of the code protection feature on microchip devices: microchip products meet the specification cont ained in their particular microchip data sheet. microchip believes that its family of products is one of the most secure families of its kind on the market today, when used i n the intended manner and under normal conditions. there are dishonest and possibly illegal methods used to breach the code protection feature. all of these methods, to our knowledge, require using the microchip products in a manner outside the operating specif ications contained in microchips data sheets. most likely, the person doing so is engaged in theft of intellectual property. microchip is willing to work with the customer who is concerned about the integrity of their code. neither microchip nor any other semiconduc tor manufacturer can guarantee the security of their code. code protection does not mean that we are guaranteeing the product as unbreakable. code protection is constantly evolving. we at microchip are co mmitted to continuously improvin g the code protection features of our products. attempts to break microchips code protection feature may be a violation of the digital millennium copyright act. if such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that act. microchip received iso/ts-16949:2009 certification for its worldwide headquarters, design and wafer fabrication facilities in chandler and tempe, arizona; gresham, oregon and design centers in california and india. the company?s quality system processes and procedures are for its pic ? mcus and dspic ? dscs, k ee l oq ? code hopping devices, serial eeproms, microperipherals, nonvolatile memory an d analog products. in addition, microchip?s quality system for the design and manufacture of development systems is iso 9001:2000 certified. quality management s ystem certified by dnv == iso/ts 16949 == downloaded from: http:/// ds20005253a-page 32 ? 2014 microchip technology inc. americas corporate office 2355 west chandler blvd. chandler, az 85224-6199 tel: 480-792-7200 fax: 480-792-7277 technical support: http://www.microchip.com/ support web address: www.microchip.com atlanta duluth, ga tel: 678-957-9614 fax: 678-957-1455 austin, tx tel: 512-257-3370 boston westborough, ma tel: 774-760-0087 fax: 774-760-0088 chicago itasca, il tel: 630-285-0071 fax: 630-285-0075 cleveland independence, oh tel: 216-447-0464 fax: 216-447-0643 dallas addison, tx tel: 972-818-7423 fax: 972-818-2924 detroit novi, mi tel: 248-848-4000 houston, tx tel: 281-894-5983 indianapolis noblesville, in tel: 317-773-8323 fax: 317-773-5453 los angeles mission viejo, ca tel: 949-462-9523 fax: 949-462-9608 new york, ny tel: 631-435-6000 san jose, ca tel: 408-735-9110 canada - toronto tel: 905-673-0699 fax: 905-673-6509 asia/pacific asia pacific office suites 3707-14, 37th floor tower 6, the gateway harbour city, kowloon hong kong tel: 852-2943-5100 fax: 852-2401-3431 australia - sydney tel: 61-2-9868-6733 fax: 61-2-9868-6755 china - beijing tel: 86-10-8569-7000 fax: 86-10-8528-2104 china - chengdu tel: 86-28-8665-5511 fax: 86-28-8665-7889 china - chongqing tel: 86-23-8980-9588 fax: 86-23-8980-9500 china - hangzhou tel: 86-571-8792-8115 fax: 86-571-8792-8116 china - hong kong sar tel: 852-2943-5100 fax: 852-2401-3431 china - nanjing tel: 86-25-8473-2460 fax: 86-25-8473-2470 china - qingdao tel: 86-532-8502-7355 fax: 86-532-8502-7205 china - shanghai tel: 86-21-5407-5533 fax: 86-21-5407-5066 china - shenyang tel: 86-24-2334-2829 fax: 86-24-2334-2393 china - shenzhen tel: 86-755-8864-2200 fax: 86-755-8203-1760 china - wuhan tel: 86-27-5980-5300 fax: 86-27-5980-5118 china - xian tel: 86-29-8833-7252 fax: 86-29-8833-7256 china - xiamen tel: 86-592-2388138 fax: 86-592-2388130 china - zhuhai tel: 86-756-3210040 fax: 86-756-3210049 asia/pacific india - bangalore tel: 91-80-3090-4444 fax: 91-80-3090-4123 india - new delhi tel: 91-11-4160-8631 fax: 91-11-4160-8632 india - pune tel: 91-20-3019-1500 japan - osaka tel: 81-6-6152-7160 fax: 81-6-6152-9310 japan - tokyo tel: 81-3-6880- 3770 fax: 81-3-6880-3771 korea - daegu tel: 82-53-744-4301 fax: 82-53-744-4302 korea - seoul tel: 82-2-554-7200 fax: 82-2-558-5932 or 82-2-558-5934 malaysia - kuala lumpur tel: 60-3-6201-9857 fax: 60-3-6201-9859 malaysia - penang tel: 60-4-227-8870 fax: 60-4-227-4068 philippines - manila tel: 63-2-634-9065 fax: 63-2-634-9069 singapore tel: 65-6334-8870 fax: 65-6334-8850 taiwan - hsin chu tel: 886-3-5778-366 fax: 886-3-5770-955 taiwan - kaohsiung tel: 886-7-213-7830 taiwan - taipei tel: 886-2-2508-8600 fax: 886-2-2508-0102 thailand - bangkok tel: 66-2-694-1351 fax: 66-2-694-1350 europe austria - wels tel: 43-7242-2244-39 fax: 43-7242-2244-393 denmark - copenhagen tel: 45-4450-2828 fax: 45-4485-2829 france - paris tel: 33-1-69-53-63-20 fax: 33-1-69-30-90-79 germany - dusseldorf tel: 49-2129-3766400 germany - munich tel: 49-89-627-144-0 fax: 49-89-627-144-44 germany - pforzheim tel: 49-7231-424750 italy - milan tel: 39-0331-742611 fax: 39-0331-466781 italy - venice tel: 39-049-7625286 netherlands - drunen tel: 31-416-690399 fax: 31-416-690340 poland - warsaw tel: 48-22-3325737 spain - madrid tel: 34-91-708-08-90 fax: 34-91-708-08-91 sweden - stockholm tel: 46-8-5090-4654 uk - wokingham tel: 44-118-921-5800 fax: 44-118-921-5820 worldwide sales and service 03/25/14 downloaded from: http:/// |
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