1/23 xc6221x182 1.3 1.4 1.5 1.6 1.7 1.8 1.9 time (500us/div) output voltage: v out (v) 0 50 100 150 200 250 300 output current: i out (ma) output voltage output current v in =ce=2.8v, tr=tf=5us topr=25 , c in =c l =1uf (ceramic) ? ? ? ? a pplications ? cellular phones ? cordless phones ? wireless communication equipment ? portable games ? cameras, vcrs ? portable av equipment ? pdas typical application circuit features output current : 200ma dropout voltage : 80mv@ i out =100ma, v out(t) =3.0v operating voltage range : 1.6v ~ 6.0v : 0.8v~4.0v (50mv increments) output voltage setting range accuracy low power consumption stand-by current : + 2% (v out > 1.5v) (+ 1% possible) + 30mv (v out ? 1.45v) (+ 20mv possible) : 25 a (typ.) : less than 0.1 a high ripple rejection : 70db @ 1khz operating temperature range : -40 ? ~85 ? low esr capacitor : 1.0 f ceramic capacitor compatible cmos cl high-speed auto-discharge (XC6221B) low output noise ultra small packages : usp-4, sot-25, ssot-24 ? typical performance characteristics ? load transient response general description the xc6221 series are precise, low noise, high speed, low dropout regulators. they are fabricated using torex?s cmos process. performance features of the series include high ripple rejection and low dropout voltage, and the series include a reference voltage source, an error amplifier, a current limiter, and a phase compensation circuit. the ce function enables the circuit to be in stand-by mode by inputing l level signal. in the stand-by mode, the series enables the electric charge at the output capacitor (c l ) to be discharged via the internal auto-discharge resistance, and as a result the v out pin quickly returns to the v ss level. the series' output stabilization capacitor (c l ) is also compatible with low esr ceramic capacitors. output voltage is selectable in 50mv increments within a range of 0.8v~4.0v, using laser trimming technologies. the current limiter's foldback circuit also operates as a short circuit protection for the output current limiter and the outpu t pin. the series achieves a great response with only 25 a of low power consumption. al so the series has low dropout voltage characteristics, which is 80ma at i out =100ma and v out(t) =3.0v. with the use of ultra small package, usp-4 packa ge, a small footprint circuit can be designed. etr0328_004
2/23 xc6221 series ? ? ? ? pin number usp-4 sot-25 ssot-24 pin name functions 4 1 4 v in power input 1 5 3 v out output 2 2 2 v ss ground 3 3 1 ce on/off control - 4 - nc no connection pin configuration pin assignment sot-25 ( top view ) ssot-24 ( top view ) usp-4 ( bottom view ) *the heat dissipation pad of the usp-4 package is recommended to solder as the recommended mount pattern and metal mask pattern for mounting strength. the mount pattern should be electrically opened or connected to the v ss (#2) pin.
3/23 xc6221 series designator description symbol description a : ce high active, no cl discharge resistor ? ? type of regulator b : ce high active, with cl discharge resistor ? ? ? output voltage 08 ~ 40 : ex.) v out (t) = 3.0v ? = 3, ? = 0 : 100mv increments, when 0.8v ? v out(t) ? 1.40v: v out(t) + 30mv ex.) 0.8v ? =0, ? =8, ? =2 2 : 100mv increments, when v out(t) > 1.5v: + 2% ex.) 1.5v ? =1, ? =5, ? =2 : 50mv increments, when 0.85v ? v out (t) ? 1.45v: v out(t) + 30mv ex.) 0.85v ? =0, ? =8, ? =a a : 50mv increments, when v out(t) > 1.55v: + 2% ex.) 1.55v ? =1, ? =5, ? =a : 100mv increments, when 0.8v ? v out(t) ? 1.90v: v out(t) + 20mv ex.) 0.8v ? =0, ? =8, ? =1 1 : 100mv increments, when v out(t) > 2.0v: + 1% ex.) 2.0v ? =2, ? =0, ? =1 : 50mv increments, when 0.85v ? v out (t) ? 1.95v: v out(t) + 20mv ex.) 0.85v ? =0, ? =8, ? =b ? ? output accuracy b : 50mv increments, when v out(t) > 2.0v: + 1% ex.) 2.05v ? =2, ? =0, ? =b g : usp-4 m : sot-25 ? packages n : ssot-24 r : embossed tape, standard feed ? device orientation l : embossed tape, reverse feed product classification ? ordering information xc6221 ??????
4/23 xc6221 series parameter symbol ratings units input voltage v in v ss -0.3 ~ +6.5 v output current i out 400 (*1) ma output voltage v out v ss ? 0.3 ~ v in + 0.3 v ce input voltage v ce vss ? 0.3 ~ +6.5 v usp-4 120 sot-25 250 power dissipation ssot-24 pd 150 mw operating temperature range topr - 40 ~ + 85 ? storage temperature range tstg - 55 ~ +125 ? block diagrams ? xc6221a series ? XC6221B series a bsolute maximum ratings *diodes inside the circuit are an esd protection diode and a parasitic diode. ta = 2 5 ? *1: i out =less than pd / (v in -v out )
5/23 xc6221 series parameter symbol conditions min. typ. max. units circuit v out(t) > 1.5v, v ce =v in , i out =10ma x 0.98 (*3) x 1.02 (*3) output voltage (standard) v out(e) (* 2) v out < 1.45v, v ce =v in , i out =10ma -0.03 (*3) v out(t) (*4) +0.03 (*3) v 1 v out(t) > 2.0v, v ce =v in , i out =10ma x 0.99 (*3) x 1.01 (*3) output voltage (high accuracy) v out(e) (* 2) v out(t) < 1.95v, v ce =v in , i out =10ma -0.02 (*3) v out(t) (*4) +0.02 (*3) v 1 output current i outmax v ce =v in , v in =v out(t) +1.0v, 0.8v< v out(t)< 4.0v 200 250 - ma 1 load regulation v out v ce =v in , 0.1ma ? i out ? 100ma - 10 40 mv 1 dropout voltage (*5) vdif v ce =v in , i out =100ma e-2 mv 1 supply current i ss v in =v out+ 1.0v, i out =0ma - 25 50 a 2 standby current i stby v in =6.0v, v ce =v ss - 0.01 0.10 a 2 v out(t) +0.5v Q v in Q 6.0v v out(t) R 1.1v, v ce =v in, i out =10ma line regulation v out v in k v out 1.6v Q v in Q 6.0v v out(t) Q 1.05v, v ce =v in, i out =10ma - 0.01 0.20 %/v 1 input voltage v in 1.6 - 6.0 v 1 output voltage temperature characteristics v out ta k v out v ce =v in , i out =30ma, -40 ? < ta < 85 ? - ? 100 - ppm/ ? 1 v in ={v out(t) +1.0}v dc +0.5vp-pac, v out(t) R 0.85v, v ce =v in, i out =30ma, f=1khz ripple rejection rate psrr v in =1.85v dc +0.5vp-pac, v out(t) Q 0.8v, v ce =v in, i out =30ma, f=1khz - 70 - db 3 limit current i lim v ce =v in 200 250 - ma 1 short current i short v ce =v in, v out is short-circuited at the v ss level - 30 - ma 1 ce high level voltage v ceh 1.2 - 6.0 v 4 ce low level voltage v cel - - 0.3 v 4 ce high level current i ceh v ce =v in -0.1 - 0.1 a 4 ce low level current i cel v ce =v ss -0.1 a 4 cl auto-discharge resistance (* 8) r dischg v in =6.0v, v out(t) =4.0v, v ce =v ss - 780 - 1 electrical characteristics ? ta = 2 5 ? ? xc6221a/b series note: * 1: unless otherwise stated regarding input voltage conditions, v in =v out(t) 1.0v. * 2: v out(e) = effective output voltage (refer to the voltage chart e-0 and e-1) (i.e. the output voltage when hs mode and an amply stabilized "v out(t) 1.0v" is provided at the v in pin while maintaining a certain i out value.) * 3: the rated value of the setting output voltage v out(e) is shown in voltage chart e-0 and e-1. * 4: v out (t) = specified output voltage * 5: vdif={v in1 (*7) -v out 1 (*6) } * 6: v out1 =a voltage equal to 98% of the output voltage whenever an amply stabilized i out {v out(t) +1.0v} is input in the hs mode. * 7: v in1 =the input voltage when v out1 appears as input voltage is gradually decreased. * 8: for the XC6221B series only. the xc6221a series discharges by resistors r1 and r2 only as shown in the block diagrams.
6/23 xc6221 series symbol e-0 e-1 e-2 setting output voltage (v) output voltage standard + 2% (v) output voltage high accuracy + 1% (v) dropout voltage vdif (mv) v out(e) v out(e) vdif v out(t) min. max. min. max. typ. max. 0.80 0.7700 0.8300 0.7800 0.8200 0.85 0.8200 0.8800 0.8300 0.8700 500 850 0.90 0.8700 0.9300 0.8800 0.9200 0.95 0.9200 0.9800 0.9300 0.9700 410 750 1.00 0.9700 1.0300 0.9800 1.0200 1.05 1.0200 1.0800 1.0300 1.0700 1.10 1.0700 1.1300 1.0800 1.1200 1.15 1.1200 1.1800 1.1300 1.1700 330 650 1.20 1.1700 1.2300 1.1800 1.2200 1.25 1.2200 1.2800 1.2300 1.2700 1.30 1.2700 1.3300 1.2800 1.3200 1.35 1.3200 1.3800 1.3300 1.3700 230 410 1.40 1.3700 1.4300 1.3800 1.4200 1.45 1.4200 1.4800 1.4300 1.4700 200 360 1.50 1.4700 1.5300 1.4800 1.5200 1.55 1.5200 1.5800 1.5300 1.5700 160 290 1.60 1.5700 1.6300 1.5800 1.6200 1.65 1.6200 1.6800 1.6300 1.6700 1.70 1.6700 1.7300 1.6800 1.7200 1.75 1.7200 1.7800 1.7300 1.770 160 250 1.80 1.7700 1.8300 1.7800 1.8200 1.85 1.8200 1.8800 1.8300 1.8700 1.90 1.8700 1.9300 1.8800 1.9200 1.95 1.9200 1.9800 1.9300 1.9700 125 210 2.00 1.9600 2.0400 1.9800 2.0200 2.05 2.0090 2.0910 2.0295 2.0705 2.10 2.0850 2.1420 2.0790 2.1210 2.15 2.1070 2.1930 2.1285 2.1715 2.20 2.1560 2.2440 2.1780 2.2220 2.25 2.2050 2.2950 2.2275 2.2725 2.30 2.2540 2.3460 2.2770 2.3230 2.35 2.3030 2.3970 2.3265 2.3735 2.40 2.3520 2.4480 2.3760 2.4240 2.45 2.4010 2.4990 2.4255 2.4745 115 195 2.50 2.4500 2.5500 2.4750 2.5250 2.55 2.4990 2.6010 2.5245 2.5755 2.60 2.5480 2.6520 2.5740 2.6260 2.65 2.5970 2.7030 2.6235 2.6765 2.70 2.6460 2.7540 2.6730 2.7270 2.75 2.6950 2.8050 2.7225 2.7775 2.80 2.7440 2.8560 2.7720 2.8280 2.85 2.7930 2.9070 2.8215 2.8785 2.90 2.8420 2.9580 2.8710 2.9290 2.95 2.8910 3.0090 2.9205 2.9795 95 170 output voltage chart
7/23 xc6221 series symbol e-0 e-1 e-2 setting output voltage (v) output voltage standard + 2% (v) output voltage high accuracy + 1% (v) dropout voltage vdif (mv) v out(e) v out(e) vdif v out(t) min. max. min. max. typ. max. 3.00 2.9400 3.0600 2.9700 3.0300 3.05 2.8990 3.1100 3.0195 3.0805 3.10 3.0380 3.1620 3.0690 3.1310 3.15 3.0870 3.2130 3.1185 3.1815 3.20 3.1360 3.2640 3.1680 3.2320 3.25 3.1850 3.3150 3.2175 3.2825 3.30 3.2340 3.3660 3.2670 3.3330 3.35 3.2830 3.4170 3.3165 3.3835 3.40 3.3320 3.4680 3.3660 3.4340 3.45 3.3810 3.5190 3.4155 3.4845 3.50 3.4300 3.5700 3.4650 3.5350 3.55 3.4790 3.6210 3.5145 3.5855 3.60 3.5280 3.6720 3.5640 3.6360 3.65 3.5770 3.7230 3.6135 3.6855 3.70 3.6260 3.7740 3.6630 3.7370 3.75 3.6750 3.8250 3.7125 3.7875 3.80 3.7240 3.8760 3.7620 3.8380 3.85 3.7730 3.9270 3.8115 3.8885 3.90 3.8220 3.9780 3.8610 3.9390 3.95 3.8710 4.0290 3.9105 3.9895 4.00 3.9200 4.0800 3.9600 4.0400 80 140 output voltage chart (continued)
8/23 xc6221 series each circuit on/off control ce v in v ss v out r1 r2 error amp - + ce ce/ voltage reference current limit ce/ rdischg setting output voltage (v) output capacitor value 0.8 ~ 1.15 c l =4.7uf 1.2 ~ 1.35 c l =2.2uf 1.4 ~ 4.0 c l =1.0uf operational explanation |