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1/24 xc6401 series dual ldo regulators, low esr cap. compatible general description the xc6401 series are highly accurate, dual, low noise, cmos ldo voltage regulators. perform ance features of the series includes low output noise, high ripple rejection ra tio, low dropout and very fast turn-on times. the xc6401 includes a reference voltage source, error am plifiers, driver transistors, current limiters and phase compensators internally. the xc6401?s current limiters' foldback circuit also operates as a short protect for the output curren t limiter. the output voltage for each regulator is set independent ly by laser trimming. voltages are selectable in 50mv steps within a range of 0.8v to 5.0v. the xc6401 series is also fully compatible with low esr ceramic capacitors, reducing cost and improving output stability. this high level of output stability is maintained even during frequent load fluctuations, due to the excellent transient respon se performance and high psrr achieved across a broad range of fr equencies. the en function allows the output of each regulator to be turned off independently, resulting in greatly r educed power consumption. the xc6401 series is available in the sot-26w or usp-6b, usp-6c ?chip-scale? package. a pplications mobile phones cordless phones and radio communication equipment portable games cameras, video recorders portable audio equipment pdas typical application circuits features maximum output current : more than 150ma (300ma limit) dropout voltage : 100mv @100ma operating voltage range : 1.5v ~ 6.0v output voltage range : 0.8v~5.0v (50mv increments) highly accurate : 2% (v out >1.5v) : 30mv (v out Q 1.5v) low power consumption : 25 a (typ.) standby current : less than 0.1 a (typ.) high ripple rejection : 70db @1khz operating temperature range : -40 ~ +85 low esr capacitor compatible : ceramic capacitor low output noise ultra small packages : sot-26w,usp-6b,usp-6c typical performance characteristics v in 1 2 3 4 6 v ss v out1 v out2 en1 en2 5 c in 1uf c l2 1uf c l1 1uf 6 v out2 v out1 v ss en2 v in en1 5 4 1 2 3 c in 1uf c l1 1uf c l2 1uf interactive load transient response sot-26w usp-6 etr0309_005
2/24 xc6401 series pin number sot-26w usp-6b/c pin name function 1 3 en1 on/off control 1 2 2 v in power input 3 1 en2 on/off control 2 4 6 v out2 output 2 5 4 v ss ground 6 5 v out1 output 1 designator description symbol description e : high active with pull-down resistor f : high active with no pull-down resistor g : low active with pull-up resistor regulator1, en type h : low active with no pull-up resistor e : high active with pull-down resistor f : high active with no pull-down resistor g : low active with pull-up resistor regulator2, en type h : low active with no pull-up resistor ? output voltage 01~ : internally set sequential number relating output voltage of each regulators regulator 1 output voltage range: 0.8 ~ 5.0 v (50mv increments) regulator 2 output voltage range: 0.8 ~ 5.0 v (50mv increments) m : sot-26w d : usp-6b packaging types e : usp-6c r : embossed tape, standard feed device orientation l : embossed tape, reverse feed pin configuration pin assignment product classification selection guide ordering information the following options for the regulator 1, 2, the en pin logic, internal pull-up / down are available. xc6401 ????? usp-6b / 6c (bottom view) sot-26w (top view) 12 3 4 5 6 6 en2 vin en1 vss vout1 vout2 *the dissipation pad for the usp-6b/c packages should be solder-plated in recommended mount pattern and metal masking so as to enhance mounting strength and heat release. if the pad needs to be connected to other pins, it should be connected to the v ss pin.
3/24 xc6401 series parameter symbol ratings units input voltage v in 6.5 v output current i out1 + i out2 700 ma output voltage v out v ss -0.3 ~ v in +0.3 v en pin voltage v en v ss -0.3 ~ 6.5 v sot-26w 250 usp-6b 100 power dissipation usp-6c pd 100 mw operating temperature range topr -40 ~ +85 storage temperature range tstg -55 ~ +125 parameter symbol conditions min. typ. max. units circuit output voltage (*3) v out (e) v in =v out (t) + 1.0v i out =30ma 0.98 v out(t) 1.02 v 1 maximum output current i outmax v in =v out (t) + 1.0v 150 - - ma 1 load regulation v out 1ma Q i out Q 100ma - 15 60 mv 1 vdif1 i out =30ma e-1 mv dropout voltage vdif2 i out =100ma e-2 mv 1 supply current i ss v in =v en =v out (t) + 1.0v, i out =0ma - 25 45 a 2 standby current i stb v in =v out (t) + 1.0v, v en =v ss - 0.01 0.10 a 3 v out v out(t)+ 1.0v Q v in Q 6.0v line regulation (*7) v in ? v out v en =v in , i out =30ma - 0.01 0.20 % / v 1 input voltage v in 1.5 - 6.0 v - output voltage v out i out =30ma temperature characteristics topr ? v out -40 Q topr Q 85 - 100 - ppm/ 1 ripple rejection rate(*8) psrr v in =[v out(t)+ 1.0]v dc +0. 5vp-pac i out =30ma, f=1khz - 70 - db 5 current limiter i lim v in =v out (t) + 1.0v, v en =v in - 300 - ma 1 short-circuit current ishort v in =v out (t) + 1.0v, v en =v in - 30 - ma 1 en "high" voltage v enh 1.30 - 6.0 v 4 en "low" voltage v enl - - 0.25 v 4 en "high" current i enh v in =v en =v out (t) + 1.0v -0.10 - 0.10 a 4 en "low" current i enl v in = v out (t) + 1.0v, v en =v ss -0.10 - 0.10 a 4 a bsolute maximum ratings ta = 2 5 electrical characteristics regulator 1, regulator 2 note *1: v out(t)= specified output voltage *2: v out(e)= effective output voltage (i.e. the output voltage when "v out(t) 1.0v" is provided at the v in pin while maintaining a certain i out value). *3: if v out (t) Q 1.45v, min v out (t) - 30mv, max v out (t) + 30mv *4: vdif={v in1 (*6) -v out1 (*5) } *5: v out1 =a voltage equal to 98% of the output voltage whenever an amply stabilized i out {v out(t)+ 1.0v} is input. *6: v in1 =the input voltage when v out1 appears as input voltage is gradually decreased. *7: when v out(t) > 4.5v, 5.5v< v in < 6.0v *8: when v out(t) > 4.8v, v in =5.75vdc+0.5vp-pac *9: unless otherwise stated, v in =v out(t)+ 1.0v xc6401ffxx ta = 2 5 * sum of i out1 and i out2 . ** pd=(v in -v out1 )xi out1 +(v in -v out2 )xi out2
4/24 xc6401 series e-1 e-2 detect voltage dropout voltage 1 dropout voltage 2 setting output voltage (v) (mv) (mv) (v) v out vdif 1 vdif 2 v out(t) min. max. typ. max. typ. max. 0.80 0.770 0.830 0.85 0.820 0.880 300 700 400 800 0.90 0.870 0.930 0.95 0.920 0.980 200 600 350 700 1.00 0.970 1.030 1.05 1.020 1.080 100 500 270 600 1.10 1.070 1.130 1.15 1.120 1.180 80 400 240 500 1.20 1.170 1.230 1.25 1.220 1.280 65 300 200 400 1.30 1.270 1.330 1.35 1.320 1.380 60 200 180 300 1.40 1.370 1.430 1.45 1.420 1.480 55 100 165 250 1.50 1.470 1.530 1.55 1.519 1.581 1.60 1.568 1.632 1.65 1.617 1.683 1.70 1.666 1.734 1.75 1.715 1.785 50 75 150 200 1.80 1.764 1.836 1.85 1.813 1.887 1.90 1.862 1.938 1.95 1.911 1.989 45 65 140 180 2.00 1.960 2.040 2.05 2.009 2.091 2.10 2.058 2.142 2.15 2.107 2.193 2.20 2.156 2.244 2.25 2.205 2.295 2.30 2.254 2.346 2.35 2.303 2.397 2.40 2.352 2.448 2.45 2.401 2.499 40 60 120 170 2.50 2.450 2.550 2.55 2.499 2.601 2.60 2.548 2.652 2.65 2.597 2.703 2.70 2.646 2.754 2.75 2.695 2.805 2.80 2.744 2.856 2.85 2.793 2.907 2.90 2.842 2.958 2.95 2.891 3.009 35 55 110 160 electrical characteristics (continued) dropout voltage
5/24 xc6401 series e-1 e-2 detect voltage dropout voltage 1 dropout voltage 2 setting output voltage (v) (mv) (mv) (v) v out vdif 1 vdif 2 v out(t) min. max. typ. max. typ. max. 3.00 2.940 3.060 3.05 2.989 3.111 3.10 3.038 3.162 3.15 3.087 3.213 3.20 3.136 3.264 3.25 3.185 3.315 3.30 3.234 3.366 3.35 3.283 3.417 3.40 3.332 3.468 3.45 3.381 3.519 3.50 3.430 3.570 3.55 3.479 3.621 3.60 3.528 3.672 3.65 3.577 3.723 3.70 3.626 3.774 3.75 3.675 3.825 3.80 3.724 3.876 3.85 3.773 3.927 3.90 3.822 3.978 3.95 3.871 4.029 4.00 3.920 4.080 4.05 3.969 4.131 4.10 4.018 4.182 4.15 4.067 4.233 4.20 4.116 4.284 4.25 4.165 4.335 4.30 4.214 4.386 4.35 4.263 4.437 4.40 4.312 4.488 4.45 4.361 4.539 4.50 4.410 4.590 4.55 4.459 4.641 4.60 4.508 4.692 4.65 4.557 4.743 4.70 4.606 4.794 4.75 4.655 4.845 4.80 4.704 4.896 4.85 4.753 4.947 4.90 4.802 4.998 4.95 4.851 5.049 5.00 4.900 5.100 30 45 100 150 dropout voltage chart (continued) dropout voltage (continued)
6/24 xc6401 series operational explanation output voltage control the voltage divided by resistors r1 & r2 is compared with the internal reference voltage by the error amplifier. the p-channel mosfets, which are connected to the v out1 and v out2 pins, are then driven by the subsequent output signal. the output voltages at the v out1 and v out2 pins are controlled and stab ilized by a system of negative feedback. the current limit circuit and short protect circuit operate in relation to the level of output current. further, th e ic's internal circuitry can be shutdown via the en pin's signal. low esr capacitors with the xc6401 series, a stable output voltage is achiev able even if used with low esr capacitors as a phase compensation circuit is built-in. in order to ensure the ef fectiveness of the phase compensat ion, we suggest that output capacitors (cl1, cl2) is connected as close as possible to the output pins (v out1 and v out2 ) and the v ss pin. please use an output capacitor with a capacitance value of at least 1 f. also, please connect an input capacitor (c in ) of 1 f between the v in pin and the v ss pin in order to ensure a stable power input. current limiter, short-circuit protection the xc6401 series includes a combination of a fixed current lim iter circuit & a foldback circui t which aid the operations of the current limiter and circuit protection. when the load current reaches the current limit level, the fixed current limiter circuit operates and output voltage drops. as a result of this drop in output voltag e, the foldback circuit operates, output voltage drops further and output current decreases. when the output pin is shorted, a curr ent of about 30ma flows. en pins the ic's internal circuitry can be shutdown via the sign al from the en1 and en2 pins with the xc6401 series. in shutdown mode, output at the v out1 and v out2 pins will be pulled down to the v ss level via r11 & r12 and r21 & r22. the operational logic of the ic's en1 and en2 pins are selectabl e (please refer to the selection guide). note that as the standard xc6401ff type's regulator 1 and 2 are both ' high acti ve/no pull down', operations will become unstable with the en1 or en2 pins open. although the en1 and en2 pins are equal to an inverter input with cmos hysteresis, with either the pull-up or pull-down options, the en1 and en2 pins input current will increase when the ic is in operation. we suggest that you use this ic with either a v in voltage or a v ss voltage input at the en1 and en2 pins. if this ic is used with the correct specifications fo r the en1 and en2 pins, the operational logic is fixed and the ic will operate normally. however, supply current may increase as a result of through current in the ic's internal circuitry. 1. please use this ic within the stated absolute maximum ratings. the ic is liable to malfunction should the ratings be exceeded. 2. where wiring impedance is high, operations may become unstable due to noise and/or phase lag depending on output current. please keep the resistance low between v in and v ss wiring in particular. 3. please wire the input capacitor (c in ) and the output capacitors (c l1 , c l2 ) as close to the ic as possible. notes on use vr1 each circuit on/off control error amp1 - + voltage reference on/off control current limit vr2 each circuit error amp2 - + current limit en1 v in v ss en2 v out1 v out2 r11 r12 r21 r22
7/24 xc6401 series test circuits circuit circuit circuit v i out2 cin, cl1, cl2 : 1 f(ceramic) cl2 cl1 v i out1 cin v in v out1 v out2 en1 v ss en2 rl1 v rl2 a a en1/en2 : high active = en=v in low active = en=v ss en1/en2 : 1. high active with pull-down resistor built-in vr1 supply current i ss1 =i1 (note:en1=on, en2=off) vr2 supply current i ss2 =i1 (note:en1=off, en2=on) 2. high active with no pull-down resistor built-in vr1 supply active current i ss1 =i1 (note:en1=on, en2=off) vr2 supply current i ss2 =i1 (note:en1=off, en2=on) 3. low active with pull-up resistor built-in vr1 supply current i ss1 =i1+i2 (note:en1=on, en2=off) vr2 supply current i ss2 =i1+i3 (note:en1=off, en2=on) 4. low active with no pull-up resistor built-in vr1 supply current i ss1 =i1 (note:en1=on, en2=off) vr2 supply current i ss2 =i1 (note:en1=off, en2=on) en1/en2: high active = en= v ss low active = en= v in
8/24 xc6401 series test circuits ( continued ) circuit circuit en1/en2 : high active = en=v in low active = en=v ss
9/24 xc6401 series typical performance characteristics (1) output voltage vs. output current 0.0 0.2 0.4 0.6 0.8 1.0 0 50 100 150 200 250 300 350 output current iout (ma) output voltage vout (v) xc6401 ( 0.8v ) vin=1.8v cin=1uf (ceramics), cl=1uf (ceramics) topr = 85 o c = 25 o c = - 40 o c 0.0 0.2 0.4 0.6 0.8 1.0 0 50 100 150 200 250 300 350 output current iout (ma) output voltage vout (v) xc6401(0.8v) vin=4.0v cin=1uf (ceramics), cl=1uf (ceramics) vin = 6.0v = 1.8v = 1.8v = 1.5v 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0 50 100 150 200 250 300 350 output current iout (ma) output voltage vout (v) xc6401(2.85v) vin=4.0v cin=1uf (ceramics), cl=1uf (ceramics) vin = 6.0v = 4.0v = 3.15v 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0 50 100 150 200 250 300 350 output current iout (ma) output voltage vout (v) xc6401(2.85v) vin=3.85v cin=1uf (ceramics), cl=1uf (ceramics) topr = 85 o c = 25 o c = - 40 o c 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0 50 100 150 200 250 300 350 output current iout (ma) output voltage vout (v) xc6401(3.0v) vin=4.0v cin=1uf (ceramics), cl=1uf (ceramics) vin = 6.0v = 4.0v = 3..3v 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0 50 100 150 200 250 300 350 output current iout (ma) output voltage vout (v) xc6401(3.0v) vin=4.0v cin=1uf (ceramics), cl=1uf (ceramics) topr = 85 o c = 25 o c = - 40 o c
10/24 xc6401 series (1) output voltage vs. out put current (continued) (2) output voltage vs. input voltage typical performance characteristics (continued) 0.0 1.0 2.0 3.0 4.0 5.0 6.0 0 50 100 150 200 250 300 350 output current iout (ma) output voltage vout (v) xc6401(5.0v) vin=6.0v cin=1uf (ceramics), cl=1uf (ceramics) topr = 85 o c = 25 o c = - 40 o c 0.0 1.0 2.0 3.0 4.0 5.0 6.0 0 50 100 150 200 250 300 350 output current iout (ma) output voltage vout (v) xc6401(5.0v) vin = 6.0v = 5.3v vin=4.0v cin=1uf (ceramics), cl=1uf (ceramics) 0.65 0.70 0.75 0.80 0.85 0.90 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 input voltage vin (v) output voltage vout (v) xc6401(0.8v) topr = 25 o c cin=1uf (ceramics), cl=1uf (ceramics) iout = 0ma = 30ma = 100ma 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 0.5 1.0 1.5 2.0 2.5 input voltage vin (v) output voltage vout (v) xc6401 ( 0.8v ) topr = 25 o c cin=1uf (ceramics), cl=1uf (ceramics) iout = 0ma = 30ma = 100ma 2.70 2.75 2.80 2.85 2.90 2.95 3.0 3.5 4.0 4.5 5.0 5.5 6.0 input voltage vin (v) output voltage vout (v) xc6401(2.85v) topr = 25 o c cin=1uf (ceramics), cl=1uf (ceramics) iout = 0ma = 30ma = 100ma 2.05 2.25 2.45 2.65 2.85 3.05 2.35 2.85 3.35 input voltage vin (v) output voltage vout (v) xc6401(2.85v) topr = 25 o c cin=1uf (ceramics), cl=1uf (ceramics) iout = 0ma = 30ma = 100ma
11/24 xc6401 series (2) output voltage vs. i nput voltage (continued) (3) dropout voltage vs. output current typical performance characteristics (continued) 2.85 2.90 2.95 3.00 3.05 3.10 3.5 4.0 4.5 5.0 5.5 6.0 input voltage vin (v) output voltage vout (v) xc6401(3.0v) topr = 25 o c cin=1uf (ceramics), cl=1uf (ceramics) iout = 0ma = 30ma = 100ma 4.2 4.4 4.6 4.8 5.0 5.2 4.5 5.0 5.5 input voltage vin (v) output voltage vout (v) xc6401(5.0v) topr = 25 o c cin=1uf (ceramics), cl=1uf (ceramics) iout = 0ma = 30ma = 100ma 4.85 4.90 4.95 5.00 5.05 5.10 5.5 6.0 input voltage vin (v) output voltage vout (v) xc6401(5.0v) topr = 25 o c cin=1uf (ceramics), cl=1uf (ceramics) iout = 0ma = 30ma = 100ma 0.0 0.1 0.2 0.3 0.4 0.5 0 50 100 150 200 output current iout (ma) dropout voltage vdif (v) xc6401(2.85v) cin=1uf (ceramics), cl=1uf (ceramics) topr = 85 o c = 25 o c = - 40 o c 0.0 0.2 0.4 0.6 0.8 1.0 0 50 100 150 200 output current iout (ma) dropout voltage vdif (v) xc6401(0.8v) cin=1uf (ceramics), cl=1uf (ceramics) topr = 85 o c = 25 o c = - 40 o c 2.2 2.4 2.6 2.8 3.0 3.2 2.5 3.0 3.5 input voltage vin (v) output voltage vout (v) xc6401(3.0v) iout = 0ma = 30ma = 100ma topr = 25 o c cin=1uf (ceramics), cl=1uf (ceramics)
12/24 xc6401 series (3) dropout voltage vs. output current (continued) (4) supply current vs. input voltage typical performance characteristics (continued) 0.0 0.1 0.2 0.3 0.4 0.5 0 50 100 150 200 output current iout (ma) dropout voltage vdif (v) xc6401(5.0v) cin=1uf (ceramics), cl=1uf (ceramics) topr = 85 o c = 25 o c = - 40 o c 0.0 0.1 0.2 0.3 0.4 0.5 0 50 100 150 200 output current iout (ma) dropout voltage vdif (v) xc6401(3.0v) cin=1uf (ceramics), cl=1uf (ceramics) topr = 85 o c = 25 o c = - 40 o c 0 20 40 60 80 100 0123456 input voltage vin (v) supply current iss (ua) xc6401(0.8v) topr = 85 o c = 25 o c = - 40 o c 0 20 40 60 80 100 0123456 intput voltage vin (v) supply current iss (ua) xc6401(2.85v) topr = 85 o c = 25 o c = - 40 o c 0 20 40 60 80 100 0123456 input voltage vin (v) supply current iss (ua) xc6401(5.0v) topr = 85 o c = 25 o c = - 40 o c 0 20 40 60 80 100 0123456 input voltage vin (v) supply current iss (ua) xc6401(3.0v) topr = 85 o c = 25 o c = - 40 o c
13/24 xc6401 series (5) output voltage vs. ambient temperature (6) supply current vs. ambient temperature typical performance characteristics (continued) 20 22 24 26 28 30 -50-25 0 255075100 ambient temperature topr ( o c) supply current idd ( a) xc6401(2.85v) vin = 3.85v 2.75 2.80 2.85 2.90 2.95 -50-250255075100 ambient temperature topr ( o c) output voltage vout (v) xc6401(2.85v) vin = 4.0v cin=1uf (ceramics), cl=1uf (ceramics) iout = 0ma = 10ma = 30ma = 100ma 0.76 0.78 0.80 0.82 0.84 -50-25 0 25 50 75100 ambient temperature topr ( o c) output voltage vout (v) xc6401(0.8v) vin = 1.8v cin=1uf (ceramics), cl=1uf (ceramics) iout = 0ma = 10ma = 30ma = 100ma 4.80 4.90 5.00 5.10 5.20 -50-250255075100 ambient temperature topr ( o c) output voltage vout (v) x c6401 ( 5.0 v ) vin = 5.0v cin=1uf (ceramics), cl=1uf (ceramics) iout = 0ma = 10ma = 30ma = 100ma 2.90 2.95 3.00 3.05 3.10 -50-25 0 25 50 75100 ambient temperature topr ( o c) output voltage vout (v) xc6401(3.0v) vin = 4.0v cin=1uf (ceramics), cl=1uf (ceramics) iout = 0ma = 10ma = 30ma = 100ma 20 22 24 26 28 30 -50-25 0 255075100 ambient temperature topr ( o c) supply current idd ( a) xc6401(0.8v) vin = 1.8v
14/24 xc6401 series (6) supply current vs. ambient temperature (continued) typical performance characteristics (continued) 20 22 24 26 28 30 -50-25 0 255075100 ambient temperature topr ( o c) supply current idd ( a) xc6401(3.0v) vin = 4.0v 20 22 24 26 28 30 -50 -25 0 25 50 75 100 ambient temperature topr ( o c) supply current idd ( a) xc6401(5.0v) vin = 6.0v
15/24 xc6401 series (7) input transient response typical performance characteristics (continued) 0.70 0.75 0.80 0.85 0.90 0.95 1.00 time (200usec/div) output voltage vout (v) -2 -1 0 1 2 3 4 input voltage vin (v) xc6401(0.8v) tr=tf=5use cl=1uf (ceramics), iout=100ua input voltage output voltage 0.70 0.75 0.80 0.85 0.90 0.95 1.00 time (40usec/div) output voltage vout (v) -2 -1 0 1 2 3 4 input voltage vin (v) xc6401(0.8v) tr=tf=5use cl=1uf (ceramics), iout=30ma output voltage input voltage 0.70 0.75 0.80 0.85 0.90 0.95 1.00 time (40usec/div) output voltage vout (v) -2 -1 0 1 2 3 4 input voltage vin (v) xc6401(0.8v) tr=tf=5use cl=1uf (ceramics), iout=100ma input voltage output voltage 2.75 2.80 2.85 2.90 2.95 3.00 3.05 time (200usec/div) output voltage vout (v) 0 1 2 3 4 5 6 input voltage vin (v) xc6401(2.85v) tr=tf=5use cl=1uf (ceramics), iout=100ua input voltage output voltage 2.75 2.80 2.85 2.90 2.95 3.00 3.05 time (40usec/div) output voltage vout (v) 0 1 2 3 4 5 6 input voltage vin (v) xc6401(2.85v) tr=tf=5use cl=1uf (ceramics), iout=30ma output voltage input voltage 2.75 2.80 2.85 2.90 2.95 3.00 3.05 time (40usec/div) output voltage vout (v) 0 1 2 3 4 5 6 input voltage vin (v) xc6401(2.85v) tr=tf=5use cl=1uf (ceramics), iout=100ma input voltage output voltage
16/24 xc6401 series (7) input transient response (continued) typical performance characteristics (continued) 2.90 2.95 3.00 3.05 3.10 3.15 3.20 time (40usec/div) input voltage vin (v) 0 1 2 3 4 5 6 input voltage vin (v) xc6401(3.0v) tr=tf=5use cl=1uf (ceramics), iout=30ma input voltage output voltage 2.90 2.95 3.00 3.05 3.10 3.15 3.20 time (40usec/div) output voltage vout (v) 0 1 2 3 4 5 6 input voltage vin (v) xc6401(3.0v) input voltage tr=tf=5use cl=1uf (ceramics), iout=100ma output voltage 4.90 4.95 5.00 5.05 5.10 5.15 5.20 time (200usec/div) output voltage vout (v) 2 3 4 5 6 7 8 input voltage vin (v) xc6401(5.0v) tr=tf=5use cl=1uf (ceramics), iout=100ua output voltage input voltage 2.90 2.95 3.00 3.05 3.10 3.15 3.20 time (200usec/div) output voltage vout (v) 0 1 2 3 4 5 6 input voltage vin (v) xc6401(3.0v) tr=tf=5use cl=1uf (ceramics), iout=100ua output voltage input voltage 4.90 4.95 5.00 5.05 5.10 5.15 5.20 time (40usec/div) output voltage vout (v) 2 3 4 5 6 7 8 input voltage vin (v) xc6401(5.0v) tr=tf=5use cl=1uf (ceramics), iout=30ma input voltage output voltage 4.90 4.95 5.00 5.05 5.10 5.15 5.20 time (40usec/div) output voltage vout (v) 2 3 4 5 6 7 8 input voltage vin (v) xc6401(5.0v) tr=tf=5use cl=1uf (ceramics), iout=100ma input voltage output voltage
17/24 xc6401 series (8) load transient response typical performance characteristics (continued) 0.40 0.50 0.60 0.70 0.80 0.90 time (40usec/div) output voltage vout (v) 0 50 100 150 200 250 output current iout (ma) 10ma 50ma xc6401(0.8v) vin=1.8v, tr=tf=5use cin=cl=1uf (ceramics) output current output voltage 0.40 0.50 0.60 0.70 0.80 0.90 time (40usec/div) output voltage vout (v) 0 50 100 150 200 250 output current iout (ma) 10ma 100ma xc6401(0.8v) vin=1.8v, tr=tf=5use cin=cl=1uf (ceramics) output voltage output current 2.45 2.55 2.65 2.75 2.85 2.95 time (40usec/div) output voltage vout (v) 0 50 100 150 200 250 output current iout (ma) 10ma 50ma xc6401(2.85v) vin=4.0v, tr=tf=5use cin=cl=1uf (ceramics) output current output voltage 2.45 2.55 2.65 2.75 2.85 2.95 time (40usec/div) output voltage vout (v) 0 50 100 150 200 250 output current iout (ma) 10ma 100ma xc6401(2.85v) vin=4.0v, tr=tf=5use cin=cl=1uf (ceramics) output voltage output current 2.60 2.70 2.80 2.90 3.00 3.10 time (40usec/div) output voltage vout (v) 0 50 100 150 200 250 output current iout (ma) 10ma 50ma xc6401(3.0v) vin=4.0v, tr=tf=5use cin=cl=1uf (ceramics) output current output voltage 2.60 2.70 2.80 2.90 3.00 3.10 time (40usec/div) output voltage vout (v) 0 50 100 150 200 250 output current iout (ma) 10ma 100ma xc6401(3.0v) vin=4.0v, tr=tf=5use cin=cl=1uf (ceramics) output current output voltage
18/24 xc6401 series (8) load transient response (continued) typical performance characteristics (continued) 4.60 4.70 4.80 4.90 5.00 5.10 time (40usec/div) output voltage vout (v) 0 50 100 150 200 250 output current iout (ma) 10ma 50ma xc6401(5.0v) vin=6.0v, tr=tf=5use cin=cl=1uf (ceramics) output voltage output current 4.60 4.70 4.80 4.90 5.00 5.10 time (40usec/div) output voltage vout (v) 0 50 100 150 200 250 output current iout (ma) 10ma 100ma xc6401(5.0v) vin=6.0v, tr=tf=5use cin=cl=1uf (ceramics) output voltage output current
19/24 xc6401 series (9) ripple rejection rate (10) cross talk typical performance characteristics (continued) xc6401(5.0v) 0 20 40 60 80 0.01 0.1 1 10 100 ripple frequency f (khz) ripple rejection rate rr (db) vin=5.75v dc+0.5vp-pac iout=30ma, cl=1uf (ceramics) xc6401(0.8v) 0 20 40 60 80 0.01 0.1 1 10 100 ripple frequency f (khz) ripple rejection rate rr (db) vin=1.8v dc+0.5vp-pac iout=30ma, cl=1uf (ceramics) xc6401(2.85v) 0 20 40 60 80 0.01 0.1 1 10 100 ripple frequency f (khz) ripple rejection rate rr (db) vin=3.85v dc+0.5vp-pac iout=30ma, cl=1uf (ceramics) xc6401(3.0v) 0 20 40 60 80 0.01 0.1 1 10 100 ripple frequency f (khz) ripple rejection rate rr (db) vin=4.0v dc+0.5vp-pac iout=30ma, cl=1uf (ceramics) 2.6 2.7 2.8 2.9 3.0 3.1 tim e (40us ec /div) output voltage vout (v) 0 100 200 300 400 500 output current 1 iout (ma) 10ma 100ma xc6401 (vr1:3.0v, vr2:2.85v) vin=4.0v, cin= cl=1uf (ceramics) vr1 output voltage (3.0v) vr2 output voltage (2.85v) vr1 output current
20/24 xc6401 series packaging information sot-26w usp-6b
21/24 xc6401 series packaging information (continued) usp-6c
22/24 xc6401 series packaging information (continued) usp-6b recommended pattern layout usp-6b recommended metal mask design usp-6c recommended pattern layout usp-6c recommended metal mask design
23/24 xc6401 series mark product series 1 xc6401xxxxmx mark product series 1 xc6401xxxxxx mark optional functions product series b en1: high active with no pull-down resistor xc6401bxxxxx e en1: high active with pull-dow n resistor, high speed xc6401exxxxx f en1: high active with no pull-do wn resistor, high speed xc6401fxxxxx z en1: low active with pull-up resistor, high speed xc6401gxxxxx h en1: low active with no pull-up resistor, high speed xc6401hxxxxx k en1: high active with pull-down resi stor, low power consumption xc6401kxxxxx l en1: high active with no pull-down re sistor, low power consumption xc6401lxxxxx m en1: low active with pull-up resi stor, low power consumption xc6401mxxxxx n en1: low active with no pull-up resi stor, low power consumption xc6401nxxxxx mark optional functions product series b en1: high active with no pull-down resistor xc6401xbxxxx e en1: high active with pull-dow n resistor, high speed xc6401xexxxx f en1: high active with no pull-do wn resistor, high speed xc6401xfxxxx z en1: low active with pull-up resistor, high speed xc6401xgxxxx h en1: low active with no pull-up resistor, high speed xc6401xhxxxx k en1: high active with pull-down resi stor, low power consumption xc6401xkxxxx l en1: high active with no pull-down re sistor, low power consumption xc6401xlxxxx m en1: low active with pull-up resist or, low power consumption xc6401xmxxxx n en1: low active with no pull-up resi stor, low power consumption xc6401xnxxxx mark output voltage vr1 (v) vr2 (v) product series 0 1 2.85 2.10 xc6401xx01xx 0 2 2.85 2.85 xc6401xx02xx mark internally set sequential number product series c 2 c2 xc6401eed5 c 0 c0 xc6401eed6 0 1 01 xc6401ff36 1 8 18 xc6401ff37 m a rking rule represents product series ? represents internally set sequential number ex.) represents production lot number 0 to 9, a to z repeated (g, i, j, o, q, w excepted) note: no character inversion used represents product series represents type of vr1 regulator ? represents vr output voltage (serial number ex.) represents type of vr2 regulator sot-26w (top view) 123 654 usp-6c (top view) usp-6b (top view) 1 2 3 6 5 4 sot-26w usp-6b, usp-6c represents production lot number 0 to 9, a to z reverse character 0 to 9, a to a repeated (g, i, j, o, q, w excepted).
24/24 xc6401 series 1. the products and product specifications cont ained herein are subject to change without notice to improve performance characteristic s. consult us, or our representatives before use, to confirm that the inform ation in this catalog is up to date. 2. we assume no responsibility for any infri ngement of patents, pat ent rights, or other rights arising from the use of any info rmation and circuitry in this catalog. 3. please ensure suitable shipping controls (including fail-safe designs and aging protection) are in force for equipment employing products listed in this catalog. 4. the products in this catalog are not developed, designed, or approved for use with such equipment whose failure of malfunction ca n be reasonably expected to directly endanger the life of, or cause significant injury to, the user. (e.g. atomic energy; aerospace; transpor t; combustion and associated safety equipment thereof.) 5. please use the products listed in this catalog within the specified ranges. should you wish to use the products under conditions exceeding the specifications, please consult us or our representatives. 6. we assume no responsibility for damage or loss due to abnormal use. 7. all rights reserved. no part of this ca talog may be copied or reproduced without the prior permission of torex semiconductor ltd.

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