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TCV7107F 2013-11-01 1 toshiba cmos integrated circuit silicon monolithic TCV7107F buck dc-dc converter ic the TCV7107F is a single-chip buck dc-dc converter ic. the TCV7107F contains high-sp eed and low-on-resistance power mosfets for the main switch and has switchable operation mode, synchronous and non-synchronous. so the TCV7107F can achieve high efficiency in the large load current range. features ? enables up to 3a (@ v in = 5v) 2.5a (@ v in = 3.3v) of load current (i out ) with a minimum of external components. ? high efficiency: = 95% (typ.) (synchronous mode @v in = 5v, v out = 3.3v, i out = 0.7a) ? high efficiency in the large load current range is rea lized because of switchable op eration mode, synchronous and non-synchronous. ? operating voltage range: v in = 2.7v to 5.6v ? low on-resistance: r ds (on) = 0.18 ? (high side) / 0.12 ? (low-side) typical (@v in = 5v, t j = 25c) ? oscillation frequency: f osc = 550khz (typ.) ? feedback voltage: v fb = 0.8v 1% (@t j = 0 to 85c) ? uses internal phase compensation to achieve high efficiency with a minimum of external components. ? allows the use of a small surface-mount ceramic capacitor as an output filter capacitor. ? housed in a small surface-mount package (sop advance) with a low thermal resistance. part marking pin assignment this product has a mos structure and is sensitive to electrostatic discharge. handle with care. the product(s) in this document (?product?) contain fu nctions intended to protect the product from temporary small overloads such as minor short-term overcurrent, or overheating. the pr otective functions do not necessarily protect product under all circumstances. when incorporating product into your system, please design the system to avoid such overloads upon th e product, and to shut down or otherwise relieve the product of such overload conditions immediately upon occurrence. for details, please refer to the notes appearing below in this document and other documents referenced in this document. hson8-p-0505-1.27 weight: 0.068 g (typ.) lot no. the dot ( ? ) on the top surface indicates pin 1. the lot number consists of three digits. the first digit represents the last di git of the year of manufacture, and the following two digits indicates the week of manufacture between 01 and either 52 or 53. manufacturing week code (the first week of the year is 01; the last week is 52 or 53.) manufacturing year code (last digit of the year of manufacture) v fb 5 en 7 mode 6 2 v in1 3 v in2 4 sgnd l x 8 1 pgnd part number (or abbreviation code) tcv 7107f start of commercial production 2011-04
TCV7107F 2013-11-01 2 ordering information part number shipping TCV7107F (te12l, q) embossed tape (3000 units per reel) block diagram pin description pin no. symbol description 1 pgnd ground pin for the output section 2 v in1 input pin for the output section this pin is placed in the standby state if v en = l. standby current is 10 a or less. 3 v in2 input pin for the control section this pin is placed in the standby state if v en = l. standby current is 10 a or less. 4 sgnd ground pin for the control section 5 v fb feedback pin this input is fed into an internal error amplifier with a reference voltage of 0.8v (typ.). 6 mode mode select pin when en 1.5v (@ v in = 5v), the synchronous rectifier type is applied and the internal low-side fet is allowed to operate. thus TCV7107F operates in pwm mode. when en 0.5v (@ v in = 5v), the non-synchronous rectifier type is applied and the internal low-side fet is not allowed to operate. the schottky barrier diode should be connected between pgnd and l x pins this pin is pulled up at 1.2 a (typ.) in operation. 7 en enable pin when en 1.5v (@ v in = 5v), the internal circuitry is a llowed to operate and thus enable the switching operation of the output section. when en 0.5v (@ v in = 5v), the internal circuitry is disabled, putting the TCV7107F in standby mode. this pin has an internal pull-down resistor of approx. 500k ? . 8 l x switch pin this pin is connected to high-side p-c hannel mosfet and low-side n-channel mosfet. error amplifie r en driver current detection l x pgnd + - v fb sgnd + - phase compensation mode slope compensation soft start under voltage lockout ref.voltage (0.8v) oscillator short-circuit protection + - 0.36v control logic v in1 v in2 feedback pin volta g e detection
TCV7107F 2013-11-01 3 absolute maximum ratings (ta = 25c) (note) characteristics symbol rating unit input pin voltage for the output section (note 1) v in1 ?0.3 to 7 v input pin voltage for the control section (note 1) v in2 ?0.3 to 7 v feedback pin voltage (note 1) v fb ?0.3 to 7 v enable pin voltage (note 1) v en ?0.3 to 7 v mode select pin voltage (note 1) v mode ?0.3 to 7 v v en ? v in2 voltage difference v en -v in2 v en ? v in2 < 0.3 v v mode ? v in2 voltage difference v mode -v in2 v mode ? v in2 < 0.3 v switch pin voltage (note 2) v lx ?0.3 to 7 v switch pin current i lx 3.5 a power dissipation (note 3) p d 2.2 w operating junction temperature t jopr ? 40 to125 c junction temperature (note 4) t j 150 c storage temperature t stg ? 55 to150 c thermal resistance characteristics characteristics symbol max unit thermal resistance, junction to ambient r th (j-a) 44.6 (note 3) c/w thermal resistance, junction to case (tc=25 ) r th (j-c) 4.17 c/w note: using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the significant change in temperature, etc.) may cause this pr oduct to decrease in the reliability significantly even if the operating conditions (i.e. operat ing temperature/current/voltage, etc.) are within the absolute maximum ratings and the operating ranges. please design the appropriate reliability upon reviewing the toshiba semiconductor reliability handbook (?handling precautions?/?derating concept and methods?) and individual reliability data (i.e. reliability test report and estimated failure rate, etc) note 1: using this product continuously may cause a dec rease in the reliability significantly even if the operating conditions are within the absolute maximum ratings. set each pin voltage less than 5.6v taking into consideration the derating. note 2: the switch pin voltage (v lx ) doesn?t include the peak voltage generated by TCV7107F?s switching. a negative voltage generated in dead time is permitted among the switch pin current (i lx ). note 3: note 4: the TCV7107F may enter into thermal shutdown at the rated maximum junction temperature. thermal design is required to ensure that the rated maximum operating junction temperature, t jopr , will not be exceeded. fr-4 25.4 25.4 0.8 (unit: mm) glass epoxy board single-pulse measurement: pulse width t=10(s)
TCV7107F 2013-11-01 4 electrical characteristics (t j = 25c, v in1 = v in2 = 2.7v to 5.6 v, unless otherwise specified) characteristics symbol test condition min typ. max unit operating input voltage v in ( opr ) D 2.7 D 5.6 v operating current i in v in1 = v in2 = v en = v fb = 5v v mode = 5v D 450 680 a output voltage range v out (opr) v en = v in1 = v in2 0.8 D D v i in(stby)1 v in1 = v in2 = 5v , v en = 0v v fb = 0.8v D D 10 standby current i in(stby)2 v in1 = v in2 = 3.3v, v en = 0v v fb = 0.8v D D 10 a high-side switch leakage current i leak (h) v in1 = v in2 = 5v, v en = 0v v fb = 0.8v, v lx = 0v D D 10 a v ih (en) 1 v in1 = v in2 = 5v 1.5 D D v ih (en) 2 v in1 = v in2 = 3.3v 1.5 D D v il (en) 1 v in1 = v in2 = 5v D D 0.5 en threshold voltage v il (en) 2 v in1 = v in2 = 3.3v D D 0.5 v i ih (en) 1 v in1 = v in2 = 5v, v en = 5v 6 D 13 en input current i ih (en) 2 v in1 = v in2 = 3.3v, v en = 3.3v 4 D 9 a v ih (mode) v in1 = v in2 = 5v 1.5 D D mode threshold voltage v il (mode) v in1 = v in2 = 5v D D 0.5 v mode input current i ih (mode) v in1 = v in2 = 5v, v en = 5v D -1.2 -2.5 a v fb1 v in1 = v in2 = 5v, v en = 5v tj = 0 to 85 0.792 0.8 0.808 v fb input voltage v fb2 v in1 = v in2 = 3.3v, v en = 3.3v tj = 0 to 85 0.792 0.8 0.808 v v fb input current i fb v in1 = v in2 = 2.7v to 5.6v, v fb = v in2 -1 D 1 a r ds(on)(h)1 v in1 = v in2 = 5v , v en = 5v i lx = - 1a D 0.18 D r ds(on)(h)2 v in1 = v in2 = 3.3v , v en = 3.3v i lx = - 1a D 0.21 D r ds(on)(h)3 v in1 = v in2 =5v, v en = 5v i lx = - 0.1a , tj = -40 85 D D 0.25 high-side switch on-state resistance r ds(on)(h)4 v in1 = v in2 = 3.3v , v en = 3.3v i lx = - 0.1a , tj = -40 85 D D 0.3 ? r ds(on)(l)1 v in1 = v in2 = 5v , v en = 5v i lx = - 1a D 0.12 D r ds(on)(l)2 v in1 = v in2 = 3.3v , v en = 3.3v i lx = - 1a D 0.14 D r ds(on)(l)3 v in1 = v in2 = 5v , v en = 5v i lx = - 0.1a , tj = -40 85 D D 0.18 low-side switch on-state resistance r ds(on)(l)4 v in1 = v in2 = 3.3v , v en = 3.3v i lx = - 0.1a , tj = -40 85 D D 0.2 ? oscillation frequency f osc v in1 = v in2 = v en = 5v 450 550 650 khz internal soft-start time t ss v in1 = v in2 = 5v, i out = 0a, measured between 0% and 90% points at v out . 3 4.5 6 ms high-side switch duty cycle dmax v in1 = v in2 = 2.7v to 5.6v D D 100 % detection tem p erature t sd v in1 = v in2 = 5v D 150 D thermal shutdown (tsd) hysteresis t sd v in1 = v in2 = 5v D 15 D c detection voltage v uv v en = v in1 = v in2 2.3 2.45 2.6 recovery voltage v uvr v en = v in1 = v in2 2.4 2.55 2.7 undervoltage lockout (uvlo) hysteresis v uv v en = v in1 = v in2 D 0.1 D v i lim1 v in1 = v in2 = 4.3v, v out = 2v 3.3 4.1 D l x current limit i lim2 v in1 = v in2 = 3.3v, v out = 2v 2.8 3.7 D a feedback pin detection voltage v old v en = v in1 = v in2 D 0.36 D v
TCV7107F 2013-11-01 5 note on electrical characteristics the test condition t j = 25c means a state where any drifts in electrical characteristics incurred by an increase in the chip?s junction temperature can be ignored during pulse testing. application circuit example figure 1 shows a typical application circuit using a low-esr electrolytic or ceramic capacitor for c out . figure 1 TCV7107F application circuit example component values (reference value@ v in = 5v, v out = 3.3v, ta = 25c) c in : input filter capacitor = 10 f (ceramic capacitor: grm21bb30j106k manufactured by murata manufacturing co., ltd, c2012x5r1c106m manufactured by tdk-epc corporation.) c out : output filter capacitor = 10 f (ceramic capacitor: grm21bb30j106k manufactured by murata manufacturing co., ltd, c2012x5r1c106m manufactured by tdk-epc corporation.) r fb1 : output voltage setting resistor = 7.5k? r fb2 : output voltage setting resistor = 2.4k? l: inductor = 4.7 h (clf7045t-4r7n manufactured by tdk-epc corporation, d63cb #a916cy-4r7m manufactured by toko, inc.) sbd: low-side schottky barrier diode (schottky barrier diode: crs30i30a manufactured by toshiba corporation) c c is a decoupling capacitor of input pin for the control section. (connect it when the circuit oper ation is unstable due to the board layout or a feature of the c in .) when merely synchron ous mode (mode=h) is applied, the sbd can be leaved out. examples of component values (for reference only) output voltage setting v out inductance l input capacitance c in output capacitance c out feedback resistor r fb1 feedback resistor r fb2 1.0 v 4.7 h 10 f 40 f 7.5 k ? 30 k ? 1.2 v 4.7 h 10 f 30 f 7.5 k ? 15 k ? 1.51 v 4.7 h 10 f 30 f 16 k ? 18 k ? 1.8 v 4.7 h 10 f 30 f 15 k ? 12 k ? 2.5 v 4.7 h 10 f 20 f 5.1 k ? 2.4 k ? 3.3 v 4.7 h 10 f 20 f 7.5 k ? 2.4 k ? component values need to be adjusted, depending on the TCV7107F?s i/o conditions and the board layout. TCV7107F r fb1 r fb2 c out c in v fb pgnd sgnd en mode v in v out gnd gnd l l x v in1 v in2 c c en mode sbd
TCV7107F 2013-11-01 6 application notes inductor selection the inductance required for inductor l can be calculated as follows: in out losc out in v v if vv l ? ? ? = (1) v in : input voltage (v) v out : output voltage (v) f osc : oscillation frequency = 550 khz (typ.) i l : inductor ripple current (a) * : generally, i l should be set to approximately 20% of th e maximum output current. since the maximum output current of the TCV7107F is 3.0a, i l should be 0.6a or so. the inductor should have a current rating greater than the peak output current of 3.3a. if the inductor current rating is exceeded, the inductor becomes saturated, leading to an unstable dc-dc converter operation. when v in = 5v and v out = 3.3v, the required inductance can be calculated as follows. be sure to select an appropriate inductor, taking the in put voltage range into account. in out losc out in v v if vv l ? ? ? = v5 v3.3 0.6a 550khz v3.3v5 ? ? ? = = 3.4 h figure 2 inductor current waveform setting the output voltage a resistive voltage divider is connected as shown in figure 3 to set the output voltage; it is given by equation 2 based on the reference voltage of the error amplifier (0 .8v typ.), which is connect ed to the feedback pin, v fb . r fb1 should be up to 30k ? or so, because an extremely large-value r fb1 incurs a delay due to parasitic capacitance at the v fb pin. it is recommended that resistors with a precision of 1% or higher be used for r fb1 and r fb2 . ? ? ? ? ? ? ? ? +?= fb2 fb1 fb out r r 1v v ? ? ? ? ? ? ? ? +.= fb2 fb1 r r 1v 80 (2) figure 3 output voltage setting resistors rectifier selection if non-synchronous (mode=l) is selected, low side mosf et is always turned off, and this product can be used as dc-dc converter of the non-synchronous method . while non-synchronous mode is applied, connect the schottky barrier diode as a rectifier between the l x and pgnd pins. it is recommended crs30i30a or equivalent be used as schottky barri er diode. power loss of a schottky barri er diode tends to increase due to an increased reverse current caused by the rise in ambient temperature and self-heating due to a supplied current. the rated current should therefore be derated to allow fo r such conditions in selecting an appropriate diode. while fixed to synchronous mode (mode=h), an external rectifier is not necessary. l x v fb r fb1 r fb2 v out i l i l osc f 1 t = in out on v v t ?= 0
TCV7107F 2013-11-01 7 output filter capacitor selection use a low-esr electrolytic or ceramic capacitor as the output filter capacitor. since a capacitor is generally sensitive to temperature, choose one with excellent temperature characte ristics. when th e output voltage exceeds 2v, the capacitance should be 20 f or greater for applications. meanwhile 30 f or greater capacitance is desirable when the output voltage is le ss than 2v. the capacitance should be set to an optimal value that meets the system?s ripple voltage requirement and transient load response characteristics. the phase margin tends to decrease as the output voltage is getting low. enlarge a capacitance for output flatne ss when phase margin is insufficient, or the transient load response characteristics cannot be satisfied. since the ceramic capacitor has a very low esr value, it helps reduce the output ripple voltage; however, because the ceramic capacitor provides less phase margin, it should be thoroughly evaluated. soft-start feature the TCV7107F has a soft-start fe ature. the soft-start time, t ss , for v out defaults to 4.5ms (typ.) internally. the soft-start feature is activated when the tcv71 07f exits the undervoltage lockout (uvlo) state after power-up and when the voltage at the en pi n has changed from logic low to logic high. mode select feature the TCV7107F operation mode is switchable: synchronous (mode=h) and non-synchronous (mode=l). while non-synchronous mode is applied, connect external sbd as a low side element. the synchronous mode can achieve high efficiency at high load current. the non-synchronous mode can achieve higher efficiency than synchr onous mode when the load current is less than 100ma; however, take into consideration the increase of the output ripple vo ltage. switching function between synchronous and non-synchronous is possible at anytime, but fluctuation in output voltage occurs at the time of switching and it might be enlarged at low load curren t range where pulse-skip occurs. in th at case a thorough evaluation is desirable to ascertain that the fluctuation range is within requirements. over current protection the TCV7107F has maximum current lim iting. the TCV7107F limits the on time of high side switching transistor and decreases output volt age when the peak value of the lx terminal current exceeds switching terminal peak current limitation i lim1 = 4.1a(typ.)@ v in = 4.3v / i lim2 = 3.7a(typ.)@ v in = 3.3v. when v in R 4.3v, the TCV7107F can operate at i out = 3a(max). and when 4.3v v in R 3.1v, it can operate at i out = 2.5a(max). meanwhile, use it at i out = 2a(max) when v in 3.1v. feedback pin voltage detection the TCV7107F has the feedback pin voltage detection. when the feedback pin voltage decrease and reaches v old = 0.36v (typ.), the TCV7107F shuts off the power supply after 65 s(typ.) and suppresses the rise of the output voltage by ground fault of a f eedback pin. when the decrease in the feedback pin voltage is detected when the overcurrent protection operates, the output voltage is stopped. the output voltage is not stopped by the feedback pin voltage detection while a soft start functi on is operating. for this reason, the supply of the output voltage is beg un by the soft start operatio n after an enable pin or the input voltage is turned on. undervoltage lockout (uvlo) the TCV7107F has undervoltage lockout (uvlo) protection circuitry. the TCV7107F does not provide output voltage (v out ) until the input voltage has reached v uvr = 2.55v (typ.). uvlo has hysteresis of 0.1v (typ.). after the switch turns on, if v in2 drops below v uv = 2.45v (typ.), uvlo shuts off the switch at v out . figure 4 undervoltage lockout operation soft start v in2 hysteresis: ' v uv undervoltage lockout detection voltage v uv switching operation stops gnd v out gnd undervoltage lockout recovery voltage v uvr switching operation starts
TCV7107F 2013-11-01 8 thermal shutdown (tsd) the TCV7107F provides thermal shutdo wn. when the junction temperature continues to rise and reaches tsd = 150c (typ.), the TCV7107F goes into thermal shutdown and shuts off the power supply. tsd has a hysteresis of about 15c (typ.). the device is enabled again when the junction temperature ha s dropped by approximately 15c from the tsd trip point. the devi ce resumes the power supply when the so ft-start circuit is activated upon recovery from tsd state. thermal shutdown is intended to protect the device ag ainst abnormal system conditio ns. it should be ensured that the tsd circuit will not be activated during normal operation of the system. figure 5 thermal shutdown operation usage precautions ? the input voltage, output voltage, output current and temperature condit ions should be considered when selecting capacitors, inductors and resistors. these co mponents should be evalua ted on an actual system prototype for best selection. ? parts of this product in the surrounding are examples of the representative, and the supply might become impossible. please confirm late st information when using it. ? external components such as capacitors, inductors and resistors should be placed as close to the TCV7107F as possible. ? the TCV7107F has an esd diode between the en and v in2 pins. the voltage between these pins should satisfy v en ? v in2 < 0.3v. ? c in should be connected as close to the pgnd and v in1 pins as possible. operation might become unstable due to board layout. in that case, add a decoupling capacitor (c c ) of 0.1 f to 1 f between the sgnd and v in2 pins. ? the minimum programmable output voltage is 0.8v (typ .). if the difference betw een the input and output voltages is small, the output voltage might not be regulated accurately and fluctuate significantly. ? when TCV7107F is in operation, a negative voltage is generated since regeneration current flows through the switch pin (l x ). even if the current flows through the low side parasitic diode during the dead time of switching transistor, operation is undisturbed so an external flywheel diode is unnecessa ry. if there is the possibility of an external negative voltage generation, add a diode for prot ection. while non-synchronous mode is applied, connect external sbd as a low side element. ? sgnd pin is connected with the back of ic chip and serves as the heat radiation pin. secure the area of a gnd pattern as large as possible fo r greater of heat radiation. ? the overcurrent protection circuits in the product are designed to temp orarily protect product from minor overcurrent of brief du ration. when the overcurrent protective func tion in the product activates, immediately cease application of overcurrent to prod uct. improper usage of product, such as application of current to product exceeding the absolute maximum ratings, could cause the overcurrent protecti on circuit not to operate properly and/or damage product permanently even before the protection circuit starts to operate. ? the thermal shutdown circuits in the product are designed to temporarily protect product from minor overheating of brief duration. when th e overheating protective function in the product activates, immediately correct the overheating situation. im proper usage of product, such as the application of heat to product exceeding the absolute maximum ratings, could cause the overheating protecti on circuit not to operate properly and/or damage product permanently even before the protection circuit starts to operate. soft start tsd detection temperature: t sd gnd switching operation stops recovery from tsd switching operation starts v out 0 t j hysteresis: t sd
TCV7107F 2013-11-01 9 typical performance characteristics v ih(en) v il(en) en threshold voltage v ih(en) , v il(en) (v) 1 2 0 1.5 0.5 0 1 4 6 200 400 500 0 -50 0 25 50 100 125 -25 75 i in ? v in i in ? t j input voltage v in (v) junction temperature t j (c) operating current i in ( a) 300 600 0 -50 -25 0 25 50 75 125 100 junction temperature t j (c) 5 100 300 operating current i in ( a) 200 500 100 400 3 2 600 -50 -25 0 50 75 100 125 25 junction temperature t j (c) en input current i ih(en) ( a) i ih(en) ? t j 0 2 4 6 5 3 1 8 20 0 16 12 4 i ih(en) ? v en junction temperature v en (v) en input current i ih(en) ( a) v ih(en) v il(en) -50 -25 0 25 50 75 100 125 junction temperature t j (c) en threshold voltage v ih(en) , v il(en) (v) 1 2 0 1.5 0.5 v en = v fb = v in v mode = v in , t j = 25c v en = v in = 5v v fb = v mode = v in v in = 5v v in = 3.3v v ih(en) , v il(en) ? t j v ih(en) , v il(en) ? t j v in = 5v v en = 5v v in = 5.6v t j = 25c 8 20 0 16 12 4
TCV7107F 2013-11-01 10 -50 0 25 50 75 100 125 -25 0.8 0.82 0.78 v fb ? t j junction temperature t j (c) vfb input voltage v fb (v) 0.81 0.79 under voltage lockout v uv ,v uvr (v) recovery voltage v uvr -50 -25 0 25 50 75 100 125 2.6 2.3 2.5 2.4 junction temperature t j (c) output voltage v out (mv) 2 3 4 5 6 0 20 10 -20 -30 -10 30 input voltage v in (v) output voltage v out (v) 2.7 2.2 2.4 2.3 2.5 2.6 0 2 1.5 0.5 1 v out ? v in input voltage v in (v) 2 3 4 5 6 0.8 0.82 0.78 v fb ? v in input voltage v in (v) vfb input voltage v fb (v) 0.79 0.81 detection voltage v uv v uv , v uvr ? t j v out ? v in v en = v in v en = v in v out = 1.2 v t j = 25c v en = v in v out = 1.2v t j = 25c v in = 5v v out = 1.2v v en = v in v out = 1.2v , i out = 0ma l = 4.7 h , c out = 10 f 3 ta = 25c
TCV7107F 2013-11-01 11 f osc - v in f osc - t j 450 500 650 600 450 500 650 600 input voltage v in (v) junction temperature t j (c) oscillation frequency f osc (khz) 550 550 oscillation frequency f osc (khz) startup characteristics (synchronous mode soft-start time) 2ms/div 2ms/div output voltage v out (1v/div) output voltage v out (1v/div) 2. 3 4 5 6 -50 -25 0 25 50 75 100 125 t j = 25c v in = 5v v in = 5v v out = 1.8v ta = 25c l = 4.7 h c out = 10 f 3 v mode = 0v v in = 5v v out = 1.8v ta = 25c l = 4.7 h c out = 10 f 3 v mode = 5v en voltage v en :l h ( 5v/div ) en voltage v en :l h ( 5v/div ) startup characteristics (non-synchronous mode soft-start time)
TCV7107F 2013-11-01 12 0 30 -30 20 10 -10 -20 output current i out (a) v out ? i out ( non-synchronous mode) output voltage v out (mv) 0 30 -30 20 10 -10 -20 output current i out (a) v out ? i out ( non-synchronous mode) output voltage v out (mv) 0 30 -30 20 10 -10 -20 output current i out (a) v out ? i out ( s y nchronous mode ) output voltage v out (mv) 0 30 -30 20 10 -10 -20 output current i out (a) v out ? i out ( s y nchronous mode ) output voltage v out (mv) 0 30 -30 20 10 -10 -20 output current i out (a) v out ? i out ( s y nchronous mode ) 0 30 -30 20 10 -10 -20 output current i out (a) v out ? i out ( non-synchronous mode) output voltage v out (mv) 0 1 0.5 1.5 2 2.5 output voltage v out (mv) 0 1 0.5 1.5 2 2.5 0 1 0.5 1.5 2 2.5 3.0 0 1 0.5 1.5 2 2.5 3.0 0 1 0.5 1.5 2 2.5 3.0 0 1 0.5 1.5 2 2.5 3.0 v in = 5v , v out = 3.3v l = 4.7 h , c out = 10 f 2 v mode = 0v , ta = 25c crs30i30a v in = 5v , v out = 1.2v l = 4.7 h , c out = 10 f 3 v mode = 0v , ta = 25c crs30i30a v in = 5v , v out = 3.3v l = 4.7 h , c out = 10 f 2 v mode = 5v , ta = 25c v in = 3.3v , v out = 1.2v l = 4.7 h , c out = 10 f 3 v mode = 0v , ta = 25c crs30i30a v in = 5v , v out = 1.2v l = 4,7 h , c out = 10 f 3 v mode = 5v , ta = 25c v in = 3.3v , v out = 1.2v l = 4,7 h , c out = 10 f 3 v mode = 3.3v , ta = 25c
TCV7107F 2013-11-01 13 overcurrent protection ( s y nchronous mode ) output voltage v out (v) overcurrent protection ( s y nchronous mode ) output voltage v out (v) overcurrent protection ( s y nchronous mode ) 0 1.5 1 0.5 output voltage v out (v) output current i out (a) output current i out (a) output current i out (a) 2 overcurrent protection ( s y nchronous mode ) output voltage v out (v) output current i out (a) 0 3 2 1 4 2 4 3 1 5 v in = 3.3v , v out = 1.2v l = 4.7 h , c out = 10 f 3 ta = 25c v in = 5v , v out = 1.2v l = 4.7 h , c out = 10 f 3 ta = 25c v in = 4.3v , v out = 3.3v l = 4.7 h , c out = 10 f 2 ta = 25c v in = 5v , v out = 3.3v l = 4.7 h , c out = 10 f 2f ta = 2 5 c 2 4 3 1 5 2 4 3 1 5 2 4 3 1 5 0 1.5 1 0.5 2 0 3 2 1 4
TCV7107F 2013-11-01 14 v in = 3.3v, v mode = 3.3v v out = 1.2v l = 4.7 h, c out = 10 f 3 ta = 2 5 c v in = 5v , v mode = 5v v out = 1.2v l = 4.7 h, c out = 10 f 3 ta = 25c v in = 5v, v mode = 5v v out = 3.3v l = 4.7 h, c out = 10 f 2 ta = 2 5 c v in = 3.3v , v mode = 0v v out = 1.2v l = 4.7 h, c out = 10 f 3 ta = 25c crs30i30a v in = 5v , v mode = 0v v out = 1.2v l = 4.7 h, c out = 10 f 3 ta = 2 5 c crs30i30a v in = 5v , v mode = 0v v out = 3.3v l = 4.7 h, c out = 10 f 2 ta = 25c crs30i30a efficiency (%) 0 80 20 100 60 40 ? i out (synchronous mode) 0.001 0.1 0.01 1 10 output current i out (a) efficiency (%) output current i out (a) efficiency (%) 0.001 0.1 0.01 1 10 0 80 20 100 60 40 0 80 20 100 60 40 ? i out ( non-synchronous mode) ? i out ( non-synchronous mode) 0.001 0.1 0.01 1 10 efficiency (%) efficiency (%) 0 80 20 100 60 40 0 80 20 100 60 40 ? i out (synchronous mode) ? i out (synchronous mode) 0.001 0.1 0.01 1 10 0.001 0.1 0.01 1 10 output current i out (a) efficiency (%) 0.001 0.1 0.01 1 10 0 80 20 100 60 40 ? i out ( non-synchronous mode) output current i out (a) output current i out (a) output current i out (a)
TCV7107F 2013-11-01 15 load response characteristics (synchronous mode) 200 s/div 200 s/div output current i out : (10ma 2a 10ma) output voltage v out (100 mv/div) output voltage v out (100 mv/div) output current i out : (10ma 2a 10ma) load response characteristics ( non-synchronous mode) 200 s /div output voltage vout (50 mv/div) mode: h l mode switching i out =1.5ma synchronous non-synchronous mode switching i out =2a non-synchronous synchronous non-synchronous mode switching i out =100ma non-synchronous synchronous non-synchronous 40 s/div 40 s/div output voltage vout (50 mv/div) output voltage vout (50 mv/div) mode switching i out =1.5ma non-synchronous synchronous 40 s/div mode: l h out p ut volta g e vout ( 50 mv/div ) mode: l h l ( 5v/div ) mode: l h l ( 5v/div ) v in = 5v , v out = 1.8v , ta = 25c l = 4.7 h , c out = 10 f 3 v in = 5v , v out = 1.8v , ta = 25c l = 4.7 h , c out = 10 f 3 v in = 5v , v out = 1.8v , i out = 2a ta = 25c , l = 4.7 h , c out = 10 f 3 v in = 5v , v out = 1.8v , i out = 100ma ta = 25c , l = 4.7 h , c out = 10 f 3 v in = 5v , v out = 1.8v , i out = 1.5ma ta = 25c , l = 4.7 h , c out = 10 f 3 v in = 5v , v out = 1.8v , i out = 1.5ma ta = 25c , l = 4.7 h , c out = 10 f 3
TCV7107F 2013-11-01 16 package dimensions hson8-p-0505-1.27 unit: mm weight: 0.068 g (typ.)
TCV7107F 2013-11-01 17 restrictions on product use ? toshiba corporation, and its subsidiaries and affiliates (collect ively "toshiba"), reserve the right to make changes to the in formation in this document, and related hardware, software and systems (collectively "product") without notice. ? this document and any information herein may not be reproduc ed without prior written permission from toshiba. even with toshiba's written permission, reproduction is permissible only if reproducti on is without alteration/omission. ? though toshiba works continually to impr ove product's quality and reliability, produc t can malfunction or fail. customers are responsible for complying with safety standards and for providi ng adequate designs and safeguards for their hardware, software and systems which minimize risk and avoid situat ions in which a malfunction or failure of product could cause loss of human life, b odily injury or damage to property, including data loss or corruption. before customers use the produc t, create designs including the product, or incorporate the product into their own applications, customers must also refer to and comply with (a) the latest versions of all relevant toshiba information, including without limitation, this document, the specifications, the data sheets and application notes for product and the precautions and conditions set forth in the "toshiba semiconductor reliability handbook" and (b) the instructio ns for the application with which the product will be used with or for. customers are solely responsible for all aspects of their own product design or applications, including but not limited to (a) determinin g the appropriateness of the use of this product in such design or applications; (b) evaluating and determining the applicability of an y information contained in this document, or in charts, dia grams, programs, algorithms, sample application ci rcuits, or any other referenced documents; and (c) validating all operating paramete rs for such designs and applications. toshiba assumes no liability for customers' product design or applications. ? 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