View UT2306-33V_1729122.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

utc ut2306/ut2306-3.3v/ut2306-5.0v linear integrated circuit utc unisonic technologies co., ltd. 1 qw-r103-029,a micropower dc/dc converters with low-battery detector active in shutdown description the utc ut2306 is a micropower step-up dc/dc converter ideal for use in small, low voltage, battery-operated systems. the devices operate from a wide input supply range of 1.5v to 8v. the utc ut2306-3.3 and ut2306-5.0 generate regulated outputs of 3.3v and 5v and the adjustable ut2306 can deliver output voltages up to 25v.quiescent current,120 0 a in active mode, decreases to just 10 0 a in shutdown with the low-battery detector still active. peak switch current, internally set at 1a,can be reduced by adding a single resistor from the i lim pin to ground. the high speed operation of the utc ut2306 allows the use of small, surface-mountable inductors and capacitors. features *5v at 200ma from two cells. *10 0 a quiescent current in shutdown. *operates with v in as low as1.5v *low battery detector active in shutdown *low switch v cesat :370mv at 1a typical. *120 0 a quiescent current in active mode. *switching frequency up to 300khz *programmable peak current with one resistor. . dip-8 sop-8 *pb-free plating product number: ut2306l/ut2306l-3.3v/ut2306l-5.0v applications *2-,3-,or 4-cell to 5v or 3.3v step-up *portable instruments *bar code scanners *palmtop computers *diagnostic medical instrumentation. *personal data communicators/computers. pin configuration 1 2 3 4 8 7 6 5 lbi sw v in lbo gnd i lim shdn fb(sense)*
utc ut2306/ut2306-3.3v/ut2306-5.0v linear integrated circuit utc unisonic technologies co., ltd. 2 qw-r103-029,a absolute maximum ratings parameter symbol rating unit input voltage v in 8 v sw voltage -0.4 ~ +25 v fb voltage(ut2306) v in +0.3 v i lim voltage(ut2306-3.3/ut2306-5.0) 5 v shdn voltage 6 v lbi voltage v in v lbo voltage 8 v maximum power dissipation p d 500 mw junction temperature tj 125 c operating temperature range topr 0 ~ 70 c storage temperature range tstg -65 ~ +150 c lead temperature (soldering,10sec) 300 c electrical characteristics (v in =2v,v shdn =2v unless otherwise noted.) parameter test conditions min typ max unit minimum operating voltage * 1.5 1.65 v operating voltage range * 8 v quiescent current * v shdn =2v,not switching 120 200 a * v shdn =0v,v in =2v 7 15 a quiescent current in shutdown * v shdn =0v,v in =5v 27 50 a comparator trip point * 1.22 1.24 1.26 v fb pin bias current * 10 25 na sense pin leakage in shutdown * v shdn =0v,fixed output versions 0.002 1 a line regulation * 1.8v v in 8v 0.04 0.15 %/v lbi input threshold * falling edge 1.10 1.17 1.25 v lbi bias current * 6 20 na lbi input hysteresis * 35 65 mv lbo output voltage low * i sink =500a 0.2 0.4 v lbo output leakage current * lbi=1.5v,lbo=5v 0.01 0.1 a shdn input voltage high * 1.4 v shdn input voltage low * 0.4 v * v shdn =5v 5 8 a shdn pin bias current * v shdn =0v -5 -2 a switching off time * 1 1.5 2 s switch on time * current limit not asserted 4 6 8 s maximum duty cycle * current limit not asserted 76 80 88 % i lim pin open,v in =5v 0.8 1 1.2 a peak switch current 20k from i lim to gnd 500 ma isw=1a 0.37 v switch saturation voltage * isw=700ma 0.26 0.35 v switch leakage switch off, vsw=5v 0.01 7 a
utc ut2306/ut2306-3.3v/ut2306-5.0v linear integrated circuit utc unisonic technologies co., ltd. 3 qw-r103-029,a the * denotes specifications which apply over the 0 c to 70 c operating temperature range. pin functions pin no. symbol description 1 lbi low battery detector input. when voltage on this pin is less than 1.17v,detector output is low 2 lbo low battery detector output. open collector can sink up to 500a.low battery detector remains active when device is shut down. 3 v in input supply. must be bypassed close (<0.2?) to the pin. see required layout in the typical applications 4 sw collector of power npn. keep copper traces on this pin short and direct to minimize rfi 5 gnd device ground. must be low impedance; solder directly to ground plane 6 i lim current limit set pin. float for 1a peak switch current; a resistor to ground will lower peak current 7 shdn shutdown input. when low, switching regulator is turned off. the low-battery detector remains active. the shdn input should not be left floating. if shdn is not used, tie the pin to v in 8 fb/sense on the ut2306 (adjustable) this pin goes to the comparator input. on the fixed-output versions, the pin connects to the resistor divider which sets output voltage. the divider is disconnected from the pin during shutdown. typical application + v in sw lbi sense i lim ibo shdn gnd 7 100 ? f 5v 200ma 2 cells 22 ? h ut2306-5.0 2-cell to 5v step-up converter with low-battery detect 499k 604k shutdown 1 6 nc 3 4 5 8 2 100k 100 ? f + lbo low when v bat ? 2.2v d1 90 load current(ma) efficiency e f f i c i e n c y ( % ) 1 10 100 500 0.01 80 70 60 50 40 v in =3.3v v in =2.5v v in =1.8v 1n5817
utc ut2306/ut2306-3.3v/ut2306-5.0v linear integrated circuit utc unisonic technologies co., ltd. 4 qw-r103-029,a typical performance characteristics saturation voltage (mv) 0 200 300 400 500 1.2 0 0.2 0.4 0.6 100 0.8 1.0 1.2 switch saturation voltage switch current (a) ta =25
peak current (a) -50 0.8 0.9 1.0 1.1 100 0.6 -25 0 25 0.7 50 75 peak switch current limit temperature(
) 1.3 6 time ( ? s) -50 2 3 4 5 100 0 -25 0 25 1 50 75 temperature(
) 7 on-and off-times 8 maximum on-time off-time 1.240 feedback voltage (v) -50 1.220 1.225 1.230 1.235 100 1.210 -25 0 25 1.215 50 75 1.245 1.250 temperature(
) feedback voltage 1.205 1.200 16 bias current (na) -50 8 10 12 14 100 4 -25 0 25 6 50 75 18 20 temperature(
) feedback pin bias current 2 0 supply current s) 0 150 200 250 300 6 50 123 100 45 input voltage (v) supply current 0 78 vshdn=vn not sw itching vshdn= 0 v ta =25

utc ut2306/ut2306-3.3v/ut2306-5.0v linear integrated circuit utc unisonic technologies co., ltd. 5 qw-r103-029,a v out 100mv / div ac coupled load transient response 100 ? s / div i lo ad 200ma 0 v out 100mv/ di v ac co upled burst m ode operation 20 ? s/div i l 500ma/div vsw 5v/div vin=2.5v vout=5v iload=185ma l= 22 ? h block diagrams 2 4 3 1 8 5 6 7 timers 6 ? s on 1.5 ? s off 1.5v undervolta gelockout + - - + a1 a2 + - enable driver gnd ilim shdn shutdown 1.24v vref q2 1 q1 200 1k q3 bias -1v r2 36mv r1 7.2 ? vin sw c1 + c2 + d1 l1 vin vout lbo lbi a3 1.17v r3 r4 fb off 1k figure 1. ut2306 block diagram. independent low-battery detector a3 remains alive when device is in shutdown
utc ut2306/ut2306-3.3v/ut2306-5.0v linear integrated circuit utc unisonic technologies co., ltd. 6 qw-r103-029,a 2 4 3 5 6 7 timers 6 ? s on 1.5 ? s off 1.5v undervolta gelockout + - - + a1 a2 + - enable driver gnd ilim shdn shutdown 1.24v vref q2 1 q1 200 1k q3 bias -1v r2 36mv r1 7.2 ? vin sw lbo lbi a3 1.17v r4 off 1k 1 8 590k r3 r4=355k (ut2306-3.3v) r4=195k (ut2306-5.0v) operation the ut2306 operation can best be understood by examining the block diagram in figure 1.comparator a1monitors the output voltage via resistor divider string r3/r4 at the fb pin. when v fb is higher than the 1.24v reference,a2 and the timers are turned off. only the reference, a1 and a3 consume current, typically 120a.as v fb drops below 1.24v plus a1?s hysteresis (about 6mv),a1 enables the rest of the circuit. power switch q1 is then cycled on for 6s, or until current comparator a2 turns off the on timer, whichever comes first. off-time is fixed at approximately 1.5s. q1?s switching cause current to alternately build up in inductor l1 and discharge into output capacitor c2 via d1, increasing the output voltage .as v fb increases enough to overcome c1?s hysteresis, switching action ceases. c2 is left to supply current to the load until v out decreases enough to force a1?s output high, and the entire cycle repeats. if switch current reaches 1a,causing a2 to trip, switch on time is reduced. this allows continuous mode operation during bursts.a2 monitors the voltage across 7.2 $ resistor r1,which is directly related to the switch current.q2?s collector current is set by the emitter-area ratio to 0.5% of q1?s collector current. r1?s voltage drop exceeds 36mv,corresponding to 1a switch current,a2?s output goes high ,truncating the on time part of the switch cycle. the 1a peak current can be reduced by tying a resistor between the i lim pin and ground, causing a voltage drop to appear across r2.the drop offsets some of the 36mv reference voltage, lowering peak current. a 22k resistor limits current to approximately 550ma.a capacitor connected between i lim and ground provides soft start. shutdown is accomplished by groundi ng the shdn pin. the low-battery detector a3 has its own 1.17v reference and is always on. the open collector output device can sink up to 500a.approximately 35mv of hysteresis is built into a3 to reduce ?buzzing? as the battery voltage reaches the trip level. inductor selection inductors used with the ut2306 must be capable of handling the worst-case peak switch current of 1.2a without saturating. open flux rod or drum core units may be biased into saturation by 20% with only a small reduction in efficiency. for the majority of 2-cell or 3-cell input ut2306 applications, a 22 h or 20 h inductor such as the sumida cd54-220 (drum) or coiltronics ctx20-1 (toroid) will suffice. if switch current is reduced using the ilim pin, smaller inductors such as the sumida cd43 series or coilcraft do1608 series can be used. minimizing figure 2. ut2306-3.3/ut2306-5.0 block diagram
utc ut2306/ut2306-3.3v/ut2306-5.0v linear integrated circuit utc unisonic technologies co., ltd. 7 qw-r103-029,a dcr is important for best efficiency. ideally, the inductor dcr s hould be less than 0.05w, although the physical size of such an inductor makes its use prohibitive in many space conscious applications. if emi is a concern, such as when sensitive analog circuitry is present, a toroidal inductor such as the coiltronics ctx20-1 is suggested. a special case exists where the vout/vin differential is high, such as a 2v to 12v boost converter. if the required duty cycle for continuous mode operation is higher than the ut2306 can provide, the converter must be designed for discontinuous operation. this means that the inductor current decreases to zero during the switch off time. for a simple step-up (boost) converter, duty cycle can be calculated by the following formula: dc = 1 ? [(v in ? v sat )/(v out + v d )] where, v in = minimum input voltage v sat = switch saturation voltage (0.3v) v out = output voltage v d = diode forward voltage (0.4v) if the calculated duty cycle exceeds the minimum ut2306 duty cycle of 76%, the converter should be designed for discontinuous mode operation. the inductance must be low enough so that current in the inductor reaches the peak current in a single cycle. inductor value can be calculated by: l = (v in ? v sat )(t on /1a) where, ton = minimum on-time of ut2306 (4 s) one advantage of discontinuous mode operation is that inductor values are usually quite low so very small units can be used. ripple current is higher than with continuous mode designs and efficiency will be somewhat less. capacitor selection low esr (equivalent series resistance) capacitors should be used at the output of the ut2306 to minimize output ripple voltage. high quality input bypassing is also requi red. for surface mount app lications avx tps series tantalum capacitors are recommended. these have been specifically designed for switch mode power supplies and have low esr along with high surge current ratings. a 100 f, 10v avx tps surface m ount capacitor typically limits output ripple voltage to 70mv when stepping up from 2v to 5v at a 200ma load. for through hole applications sanyo os-con capacitors offer extremely low esr in a small package size. again, if peak switch current is reduced using the ilim pin, capacitor requirements can be eased and smaller, higher esr units can be used. diode selection best performance is obtained with a schottky rectifier such as the 1n5818. motorola makes the mbrs130l schottky which is slightly better than the 1n5818 and comes in a surface mount package. for lower switch currents, the mbr0530 is recommended. it comes in a very small sod-123 package. multiple 1n4148s in parallel can be used in a pinch, although efficiency will suffer. i lim function the ut2306?s current limit (i lim ) pin can be used for soft start. upon start-up, the ut2306 will draw maximum current (about 1a) from the supply to charge the output capacitor. figure 3 shows v out and vin waveforms as the device is turned on. the high current flow can create ir drops along supply and ground lines or cause the input supply to drop out momentarily. by adding r1 and c1 as shown in figure 4, the switch current is initially limited to well under 1a as detailed in figure 5. current flowing into c1 from r1 and the i lim pin will eventually charge c1 and r1 effectively takes c1 out of the circuit. r1 also provides a discharge path for c1 when shutdown is brought low for turn-off.
utc ut2306/ut2306-3.3v/ut2306-5.0v linear integrated circuit utc unisonic technologies co., ltd. 8 qw-r103-029,a v out 2v/div fig ure 3. start-up response.input current rises quickly to 1a. vout reaches 5v in approximately 1ms.output drives 20ma load 1ms/div i in 500ma/div v shdn 10v/div + v in sw lbi sense i lim ibo shdn gnd 100 ? f 5v 200ma 2 cells 22 ? h * ut2306-5.0 shutdown 100 ? f + mbrs130l c1 1 ? f + r1 1m *sumida cd54-220 figure4.2-cell to 5v/200ma boost converter takes four external parts.components with dashed lines are for soft start(optional) if the full power capability of the ut2306 is not required,peak switch current can be limited by connecting a resistor r lim from the i lim pin to ground. with r lim = 22k, peak switch current is reduced to approximately 500ma. smaller power components can then be used. the graph in figure 6 shows switch current vs r lim resistor value.
utc ut2306/ut2306-3.3v/ut2306-5.0v linear integrated circuit utc unisonic technologies co., ltd. 9 qw-r103-029,a v out 2v/div figure 5. start-up response with 1 ? f/1m ? components in figure 2 added. input current is more controlled. v out reaches 5v in6ms.output drives 20ma load. 1ms/div i in 500ma/div v shdn 10v/div 1304 f05 1000 rlim(k ? peak current(ma)(%) 100 10 1000 900 800 700 600 500 400 figure 6.peak switch current vs r lim value layout/input bypassing the ut2306 high speed switching mandates careful attention to pc board layout. suggested component place-ment is shown in figure 7.the input supply must have low impedance at ac and the input capacitor should be placed as indicated in the figure. the value of this capacitor depends on how close the input supply is to the ic. in situations where the input supply is more than a few inches away from the ic, a 47f to 100f solid tantalum bypass capacitor is required. if the input supply is close to the ic, a 1f ceramic capacitor can be used instead. the ut2306 switches current in 1a pulses, so a low impedance supply must be available. if the power source (for example, a 2aa cell battery) is within 1 or 2 inches of the ic, the battery itself provides bulk capacitance and the 1f ceramic capacitor acts to smooth voltage spikes at switch turn-on and turn ?off. if the power source is far away from the ic, inductance in the power source leads results in high impedance at high frequency. a local high capacitance bypass is then required to restore low impedance at the ic.
utc ut2306/ut2306-3.3v/ut2306-5.0v linear integrated circuit utc unisonic technologies co., ltd. 10 qw-r103-029,a figure 7. suggested layout for best performance.input capacitor placement as shown is highly recommended.switch trace (pin 4) copper area is minimized v in shutdown + v out ut2306 8 7 6 5 1 2 3 4 c out c in + gnd (battery and load return) low-battery detector the ut2306 contains an independent low-battery detector that remains active when the device is shut down. this detector, actually a hysteretic comparator, has an open collector output that can sink up to 500a.the comparator also operates below the switcher?s undervoltage lockout threshold, operating until v in reaches approximately 1.4v.figure 8 illustrates the input /output characteristic of the detector. hysteresis is clearly evident in the figure. v lbo 2v/div figure 8. low-battery detector transfer function. pull-up r=22k,vin=2v,sweep frequency=10hz v lbi 200mv/div battery life how may hours does it work? this is the bottom line question that must be asked of any efficiency study. aa alkaline cells are not perfect power sources. for efficient power transfer, energy must be taken from aa cells at a rate that does not induce excessive loss. aa cells internal impedance, about 0.2 ? fresh and 0.5 ? end-of-life, results in significant efficiency loss at high discharge rates. figure 10 illustrates battery life vs load current of figure 9?s ut2306, 2-cell to 5v dc/dc converter. note the accelerated decrease in hours at higher power levels. figure 11 plots total watt hours vs load current. watt hours are determined by the following formula: wh = i load (5v)(h)
utc ut2306/ut2306-3.3v/ut2306-5.0v linear integrated circuit utc unisonic technologies co., ltd. 11 qw-r103-029,a + vin sw lbi sense ilim ibo shdn gnd c1 100 ? f vout 5v 200ma b1 2 cells l1 22 ? h ut2306-5.0 c2 100 ? f + d1 figure9.2-cell to 5v converter used in battery life study 1000 load current(ma) h o u r s ( h ) 10 100 100 10 1 1 200 figure 10. battery life vs current.dots specify actual measurements
utc ut2306/ut2306-3.3v/ut2306-5.0v linear integrated circuit utc unisonic technologies co., ltd. 12 qw-r103-029,a 6 load current(ma) w a t t h o u r s ( w h ) 10 100 5 4 0 1 200 figure 11. output wall hours vs load current. note rapid fall-off at higher discharge rates 3 2 1 figure 11?s graph varies significantly from electrical efficiency plot pictured on the first page of this data sheet. why? as more current is drawn from the battery, voltage drop across the cells? internal impedance increases. this causes internal power loss (heating), reducing cell terminal voltage. since the regulator input acts as a negative resistance, more current is drawn from the battery as the terminal voltage decreases. this positive feedback action compounds the problem. figure 12 shows overall energy conversion efficiency, assuming availability of 6.5wh of battery energy. this efficiency approximates the electrical efficiency at load current levels from 1ma to 10ma, but drops severely at load currents above 10ma (load power above 50mw). the moral of the story is this: if your system needs 5v at more than 40ma to 50ma, consider using a nicd battery (1/10 the internal impedance) instead of a aa cell alkaline battery.
utc ut2306/ut2306-3.3v/ut2306-5.0v linear integrated circuit utc unisonic technologies co., ltd. 13 qw-r103-029,a 100 load current(ma) e l e c t r o c h e m i c a l e f f i c i e n c y ( % ) 10 100 90 30 0 1 200 figure 12. overall system efficiency including battery efficiency vs load current.internal lmpedance of alkaline aa cells accounts for rapid drop in efficiency at higher load current 20 40 50 60 70 80 10 typical characteristics + + 200k vin sw lbo lbi fb i lim shdn gnd 47k 47k 22k iq 10 ? a 100 ? f 220 ? f 5v 100ma 2 cells 0.0 1 ? f 3.83m 1% 1.21m 33 ? h 2n3906 mbr0530 ut2306 90 load current (m) super burst efficiency e f f i c i e n c y ( % ) 0.1 1.0 10 100 v in =3v 0.01 80 70 60 50 40 v in =2v super burst low i q dc/dc converter
utc ut2306/ut2306-3.3v/ut2306-5.0v linear integrated circuit utc unisonic technologies co., ltd. 14 qw-r103-029,a + v in sw sense i lim shdn gnd c1 10 ? f 3.3v 300ma 2 cells l1 22 ? h ut2306-3.3 c2 100 ? f 10v + mbrs130l shutdown nc 2-cell to 3.3v boost converter 90 load current (ma) 2-cell to 3.3v converterefficiency e f f i c i e n c y ( % ) 1 10 100 1000 0.1 80 70 60 50 40 30 v in =3.3v v in =2.5v v in =1.8v + vin sw sense i lim shdn gnd c2 47 ? f 16v 3.3v 300ma l1a ut2306-3.3 c3 100 ? f 10v + mbrs130l shutdown n c 21 4 3 c1 1 ? f l1b * vin 2.5v to 8v 80 load current (ma) 3.3v sepic efficiency e f f i c i e n c y ( % ) 1 10 100 500 75 70 65 60 55 50 v in =4.5v v in =3.5v v in =2.5v 3.3v sepic efficiency(step-up/step-down converter) + v in sw sense i lim shdn gnd 47 ? f 16v 5v 200ma l1a ut2306-5.0 100 ? f 10v + mbrs130l shutdown nc 21 4 3 c1 1 ? f l1b v in 3v to 8v 80 load current (ma) 5v sepic efficiency e f f i c i e n c y ( % ) 1 10 100 500 75 70 65 60 55 50 v in =6v v in =4v v in =3v v in =5v 5v spec (step-up/step-down converter)
utc ut2306/ut2306-3.3v/ut2306-5.0v linear integrated circuit utc unisonic technologies co., ltd. 15 qw-r103-029,a + + vin sw fb shdn gnd 124k 1% 5v 47 ? f 47 ? f 16v 12v 200ma 1.07m 1% 5v to 12v dc/dc converter shutdonw l1 22 ?) d1 ut2306 mbrs130l 1 10 100 300 65 70 75 5v to 12v converter efficiency efficiency (%) load current(ma) 80 85 90 + vin sw lbi sense ilim ibo shdn gnd 100 ? f 22 ? h ut2306-5.0 single li-lon cell to 5v converter with load disconnect at vin ? 2.7v 220k nc mbrs130l 562k 1% 432k 1% single li-ion cell vout v in1 vins en vout vin2 vin3 gnd 5v 1 ? f + nc nc
utc ut2306/ut2306-3.3v/ut2306-5.0v linear integrated circuit utc unisonic technologies co., ltd. 16 qw-r103-029,a + + vin sw fb ilim gnd 110k 1% 47 ? f 10 ? f 35v voltage adjust 1khz pwm input 0v to 5v 1m 1% negative lcd bias generator l1* 10 ?) 2 cells 22k 90.9k 1% 3.3 ? f 1000 pf 1 ? f ceramic -vout -14v to -22v 1ma to 10ma efficiency =70% to 75% at iload 2ma + 1.69m 1% ut2306 mbr0530 mbr0530 mbr0530 + vin sw fb ilim gnd 47 ? f 1 ? f 200v 1/2 baw56 electroluminescent panel driver with 200hz oscillator vin 2v to 7v 5v=operate 0v=shutdown shdn 200hz 22k 10m (3.3m*3) el panel cpanel 20nf mur160 600v nc lbo lbi + 1 3 4 6 22k 22k 51k 50k intensity adjust 1/2 baw56 0.01 ? f 1nf 22k 22k 75k 3.3k ut2306 fmmt458 2n3906 mbr0530 1:12 d a n g e r i h i g h v o l t a g e
utc ut2306/ut2306-3.3v/ut2306-5.0v linear integrated circuit utc unisonic technologies co., ltd. 17 qw-r103-029,a v in sw fb i lim gnd 47 ? f 2-to 4-cell to 1kv step-up converter v in 2v to 6v shutdown shdn nc + 1 3 4 6 r2 620k 0.1 ? f v out 1kv 250 ? a r1 500m 0.01 ? f 0.01 ? f 0.01 ? f 0.01 ? f 0.01 ? f 0.01 ? f 0.01 ? f 0.01 ? f 0.01 ? f v out =1.24v(1+ ) r2 r1 ut2306 mbr0530 t1 d a n g e r i h i g h v o l t a g e + v in sw sense ilim shdn gnd 47 ? f 5v 100ma l1 22 ? h ut2306-5.0 220 ? f + mbrs130l shutdown nc 2- to 4- cell to 5v converter with output disconnect v in 2v to 6v 2k 22 ? f + ztx788b
utc ut2306/ut2306-3.3v/ut2306-5.0v linear integrated circuit utc unisonic technologies co., ltd. 18 qw-r103-029,a + v in sw sense i lim shdn gnd 100 ? f 5v 150ma 2cells l1 22 ? h ut2306-5.0 shutdown mbrs130l nc 10v 20ma 10 ? f + 10 ? f mbr0530 + mbr0530 1 ? f ceramic 2- cell to 5v converter with auxiliary 10v output + v in sw sense i lim shdn gnd 100 ? f 5v 150ma 2 cells l1 22 ? h uc2603-5.0 shutdown 10 ? f + mbrs130l nc -5v 20ma 2- cell to 5v converter with auxiliary -5v output mbr0530 mbr0530 1 ? f ceramic
utc ut2306/ut2306-3.3v/ut2306-5.0v linear integrated circuit utc unisonic technologies co., ltd. 19 qw-r103-029,a utc assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all utc products described or contained herein. utc products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.

▲Up To Search▲

Price & Availability of UT2306-33V

	To Download UT2306-33V Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .