ETR0328_009 GENERAL DESCRIPTION The XC6221 series is a high accuracy, low noise, high speed, low dropout CMOS regulator with high ripple rejection. The series includes a reference voltage source, an error amplifier, a current limiter, and a phase compensation circuit. The CE function enables the entire circuit to be in stand-by state by inputting low level signal. In this stand-by mode, the electric charge at the output capacitor (CL) will be discharged by the internal auto-discharge switch, and as a result the VOUT pin quickly returns to the VSS level. The output stabilization capacitor (CL) is also compatible with low ESR ceramic capacitors. Output voltage is selectable in 0.05V increments within a range of 0.8V~5.0V, using the laser trimming technology set in factory. The current limiter's fold-back circuit also operates as a short circuit protection and an output current limiter at the output pin. The series achieves a fast response with only 25A of low power consumption. Also the series has low dropout voltage characteristics, which is 80mV at IOUT=100mA and VOUT=3.0V. With the use of small USP-4 and ultra small USPN-4 packages, a small footprint circuit can be designed. APPLICATIONS Cellular phones Cordless phones Wireless communication equipment Portable games Cameras, VCRs Portable AV equipment PDAs FEATURES : 200mA :80mV@ IOUT=100mA,VOUT=3.0V : 1.6V ~ 6.0V : 0.8V~5.0V (0.05V increments) : +2% (VOUT >1.5V) (+1% option is available) +30mV (VOUT1.45V) (+20mV option is available) Low Power Consumption : 25A (TYP.) Stand-by Current : Less than 0.1A High Ripple Rejection : 70dB @ 1kHz Operating Temperature : -40~85 Low ESR Capacitor : 1.0F ceramic capacitor CL High-Speed Auto-Discharge (XC6221B) CE Pin internally pulled-down Low Output Noise Ultra Small Packages : USP-4, SOT-25, SSOT-24 USPN-4 Output Current Dropout Voltage Operating Voltage Range Output Voltages Accuracy TYPICAL APPLICATION CIRCUIT TYPICAL PERFORMANCE CHARACTERISTICS Load Transient Response XC6221x182 VIN=CE=2.8V, Tr=Tf=5us Topr=25, CIN=CL=1uF (ceramic) Output Voltage 1.8 Output Voltage: V OUT (V) 1.7 1.6 Output Current 1.5 1.4 1.3 Time (500us/div) 100 50 0 250 200 Output Current: OUT (mA) I 1.9 300 150 1/23 XC6221 Series PIN CONFIGURATION VOUT 5 VSS 2 VOUT 1 3 CE 4 VIN 1 VIN 2 VSS 3 CE 1 CE 2 VSS NC 4 VIN 4 VOUT 3 USP-4 USP-4 (BOTTOM VIEW) (BOTTOM VIEW) SOT-25 SOT-25 (TOP VIEW) (TOP VIEW) SSOT-24 SSOT-24 (TOP VIEW) (TOP VIEW) VSS 2 VOUT 1 3 CE 4 VIN USPN-4 (BOTTOM VIEW) USPN-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 VSS (No.2) pin. PIN ASSIGNMENT PIN NUMBER USP-4 4 1 2 3 SOT-25 1 5 2 3 4 SSOT-24 4 3 2 1 USPN-4 4 1 2 3 PIN NAME VIN VOUT VSS CE NC FUNCTIONS Power Input Output Ground ON/OFF Control No Connection 2/23 XC6221 Series PRODUCT CLASSIFICATION Ordering Information XC6221 -(*1) DESIGNATOR DESCRIPTION SYMBOL A Type of Regulator (All CE high active) B C D Output Voltage 08 ~ 40 2 DESCRIPTION No CE pull-down resistor without CL auto discharge No CE pull-down resistor with CL auto discharge CE pull-down resistor without CL auto discharge CE pull-down resistor with CL auto discharge ex.) VOUT(T) = 3.0V = 3, = 0 +30mV @ 0.8VVOUT(T)1.40V When 0.1V steps such as VOUT(T)=0.8V =0, =8, =2 +2% @ VOUT(T)>1.5V When 0.1V steps such as VOUT(T)=1.5V =1, =5, =2 +30mV @ 0.85VVOUT(T)1.45V When 0.05V steps such as VOUT(T)=0.85V =0, =8, =A +2% @ VOUT(T)>1.55V When 0.05V steps such as VOUT(T)=1.55V =1, =5, =A +20mV @ 0.8VVOUT(T)1.90V When 0.1V steps such as VOUT(T)=0.8V =0, =8, =1 +1% @ VOUT(T)>2.0V When 0.1V steps such as VOUT(T)=2.0V =2, =0, =1 +20mV @ 0.85VVOUT(T)1.95V When 0.05V steps such as VOUT(T)=0.85V =0, =8, =B +1% @ VOUT(T)>2.0V When 0.05V steps such as VOUT(T)=2.05V =2, =0, =B USP-4 USP-4 (Halogen & Antimony free) SOT-25 SOT-25 (Halogen & Antimony free) SSOT-24 SSOT-24 (Halogen & Antimony free) USPN-4 (Halogen & Antimony free) A Output Accuracy 1 B GR GR-G - Packages Taping Type (*2) MR MR-G NR NR-G 7R-G * For the USPN-4 package, 0.8VVOUT(T)1.15V is under development. (*1) (*2) The "-G" suffix indicates that the products are Halogen and Antimony free as well as being fully RoHS compliant. The device orientation is fixed in its embossed tape pocket. For reverse orientation, please contact your local Torex sales office or representative. (Standard orientation: R-, Reverse orientation: L-) 3/23 XC6221 Series BLOCK DIAGRAMS CE ON/OFF Control V IN CE ON/OFF Control V IN CE CE/ Error Amp Current Limit CE CE/ Error Amp Current Limit each circuit + V OUT R1 each circuit + V OUT R1 Rdischg CE/ R2 R2 Voltage Reference V SS Voltage Reference V SS XC6221A Series XC6221A XC6221B Series XC6221B CE R Pull -down ON/OFF Control V IN CE R Pull -down ON/OFF Control VIN CE CE/ Error Amp Current Limit CE CE/ Error Amp Current Limit each circuit + V OUT R1 each circuit + VOUT R1 Rdischg CE/ R2 R2 Voltage Reference V SS Voltage Reference V SS XC6221C Series XC6221C *Diodes inside the circuit are an ESD protection diode and a parasitic diode. XC6221D Series XC6221D ABSOLUTE MAXIMUM RATINGS PARAMETER Input Voltage Output Current Output Voltage CE Input Voltage USP-4 SOT-25 Power Dissipation SSOT-24 USPN-4 Operating Temperature Range Storage Temperature Range *1 IOUT=Less than Pd / (VIN-VOUT) SYMBOL VIN IOUT VOUT VCE Pd Topr Tstg RATINGS VSS -0.3 ~ +6.5 400(*1) VSS - 0.3 ~ VIN + 0.3 VSS - 0.3 ~ +6.5 120 250 150 100 - 40 ~ + 85 - 55 ~ +125 Ta=25 UNITS V mA V V mW 4/23 XC6221 Series ELECTRICAL CHARACTERISTICS XC6221A/BC/D series PARAMETER Output Voltage (Standard) SYMBOL VOUT(E) (* 2) Ta=25 CONDITIONS 1.5V(* 2) MIN. x 0.98 (*3) TYP. VOUT(T) (*4) MAX. x 1.02 (*3) UNITS CIRCUIT V -0.03 (*3) +0.03 (*3) Output Voltage (High Accuracy) Output Current Load Regulation Dropout Voltage (*5) Supply Current Standby Current 2.0Vx 0.99 (*3) x 1.01 VOUT(T) (*4) (*3) -0.02 (*3) +0.02 (*3) V IOUTMAX VOUT Vdif ISS ISTBY VCE=VIN, VIN=VOUT(T)+1.0V, 0.8V200 - 250 10 E-2 40 mA mV mV
- 25 0.01 50 0.10 A A VOUT(T)+0.5VVIN6.0V VOUT / 1.1VOUT(T), VCE=VIN, IOUT=10mA Line Regulation ( VINVOUT) 1.6VVIN6.0V VOUT(T)1.05V, VCE=VIN, IOUT=10mA Input Voltage VIN Output Voltage VOUT / VCE=VIN, Temperature Characteristics ( TaVOUT) IOUT=30mA, -401.6 - 0.01 100 0.20 6.0 - %/V V ppm/
60 - - dB 70 200 1.2 -0.1 1.03 -0.1 - 250 30 780 6.0 0.3 0.1 2.37 0.1 - mA mA V V A A
NOTE: * 1: Unless otherwise stated regarding input voltage conditions, VIN=VOUT(T)1.0V. * 2: VOUT (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 "VOUT (T) 1.0V" is provided at the VIN pin while maintaining a certain IOUT value.) * 3: The relation between VOU T (E) and VOUT (T) is shown in the voltage chart E-0 and E-1. * 4: VOUT (T) = Nominal output voltage (*7) (*6) * 5: Vdif = {VIN1 -VOUT1 } * 6: VOUT1 is the voltage equal to 98% of the normal output voltage when amply stabilized VOUT (T) +1.0V are input at the VIN pin. * 7: VIN1 is the input voltage when VOUT1 appears at the VOUT pin while 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. * 9: For operating supply current of the XC6221C/D, a current through the pull-down resistor should be considered in addition to the supply current value mentioned above. 5/23 XC6221 Series OUTPUT VOLTAGE CHART SYMBOL NOMINAL OUTPUT VOLTAGE (V) VOUT(T) 0.80 0.85 0.90 0.95 1.00 1.05 1.10 1.15 1.20 1.25 1.30 1.35 1.40 1.45 1.50 1.55 1.60 1.65 1.70 1.75 1.80 1.85 1.90 1.95 2.00 2.05 2.10 2.15 2.20 2.25 2.30 2.35 2.40 2.45 2.50 2.55 2.60 2.65 2.70 2.75 2.80 2.85 2.90 2.95 E-0 OUTPUT VOLTAGE Standard +2% (V) VOUT(E) MIN. 0.7700 0.8200 0.8700 0.9200 0.9700 1.0200 1.0700 1.1200 1.1700 1.2200 1.2700 1.3200 1.3700 1.4200 1.4700 1.5200 1.5700 1.6200 1.6700 1.7200 1.7700 1.8200 1.8700 1.9200 1.9600 2.0090 2.0850 2.1070 2.1560 2.2050 2.2540 2.3030 2.3520 2.4010 2.4500 2.4990 2.5480 2.5970 2.6460 2.6950 2.7440 2.7930 2.8420 2.8910 E-1 OUTPUT VOLTAGE High Accuracy +1% (V) VOUT(E) MAX. 0.8300 0.8800 0.9300 0.9800 1.0300 1.0800 1.1300 1.1800 1.2300 1.2800 1.3300 1.3800 1.4300 1.4800 1.5300 1.5800 1.6300 1.6800 1.7300 1.7800 1.8300 1.8800 1.9300 1.9800 2.0400 2.0910 2.1420 2.1930 2.2440 2.2950 2.3460 2.3970 2.4480 2.4990 2.5500 2.6010 2.6520 2.7030 2.7540 2.8050 2.8560 2.9070 2.9580 3.0090 E-2 DROPOUT VOLTAGE Vdif (mV) Vdif MAX. 0.8200 0.8700 0.9200 0.9700 1.0200 1.0700 1.1200 1.1700 1.2200 1.2700 1.3200 1.3700 1.4200 1.4700 1.5200 1.5700 1.6200 1.6700 1.7200 1.770 1.8200 1.8700 1.9200 1.9700 2.0200 2.0705 2.1210 2.1715 2.2220 2.2725 2.3230 2.3735 2.4240 2.4745 2.5250 2.5755 2.6260 2.6765 2.7270 2.7775 2.8280 2.8785 2.9290 2.9795 95 170 115 195 125 210 160 250 200 160 360 290 230 410 330 650 MIN. 0.7800 0.8300 0.8800 0.9300 0.9800 1.0300 1.0800 1.1300 1.1800 1.2300 1.2800 1.3300 1.3800 1.4300 1.4800 1.5300 1.5800 1.6300 1.6800 1.7300 1.7800 1.8300 1.8800 1.9300 1.9800 2.0295 2.0790 2.1285 2.1780 2.2275 2.2770 2.3265 2.3760 2.4255 2.4750 2.5245 2.5740 2.6235 2.6730 2.7225 2.7720 2.8215 2.8710 2.9205 TYP. 500 410 MAX. 850 750 6/23 XC6221 Series OUTPUT VOLTAGE CHART (Continued) SYMBOL NOMINAL OUTPUT VOLTAGE (V) VOUT(T) 3.00 3.05 3.10 3.15 3.20 3.25 3.30 3.35 3.40 3.45 3.50 3.55 3.60 3.65 3.70 3.75 3.80 3.85 3.90 3.95 4.00 4.05 4.10 4.15 4.20 4.25 4.30 4.35 4.40 4.45 4.50 4.55 4.60 4.65 4.70 4.75 4.80 4.85 4.90 4.95 5.00 E-0 OUTPUT VOLTAGE Standard +2% (V) VOUT(E) MIN. 2.9400 2.8990 3.0380 3.0870 3.1360 3.1850 3.2340 3.2830 3.3320 3.3810 3.4300 3.4790 3.5280 3.5770 3.6260 3.6750 3.7240 3.7730 3.8220 3.8710 3.9200 3.9690 4.0180 4.0670 4.1160 4.1650 4.2140 4.2630 4.3120 4.3610 4.4100 4.4590 4.5080 4.5570 4.6060 4.6550 4.7040 4.7530 4.8020 4.8510 4.9000 E-1 OUTPUT VOLTAGE High Accuracy +1% (V) VOUT(E) MAX. 3.0600 3.1100 3.1620 3.2130 3.2640 3.3150 3.3660 3.4170 3.4680 3.5190 3.5700 3.6210 3.6720 3.7230 3.7740 3.8250 3.8760 3.9270 3.9780 4.0290 4.0800 4.1310 4.1820 4.2330 4.2840 4.3350 4.3860 4.4370 4.4880 4.5390 4.5900 4.6410 4.6920 4.7430 4.7940 4.8450 4.8960 4.9470 4.9980 5.0490 5.1000 E-2 DROPOUT VOLTAGE Vdif (mV) Vdif MIN. 2.9700 3.0195 3.0690 3.1185 3.1680 3.2175 3.2670 3.3165 3.3660 3.4155 3.4650 3.5145 3.5640 3.6135 3.6630 3.7125 3.7620 3.8115 3.8610 3.9105 3.9600 4.0095 4.0590 4.1085 4.1580 4.2075 4.2570 4.3065 4.3560 4.4055 4.4550 4.5045 4.5540 4.6035 4.6530 4.7025 4.7520 4.8015 4.8510 4.9005 4.9500 MAX. 3.0300 3.0805 3.1310 3.1815 3.2320 3.2825 3.3330 3.3835 3.4340 3.4845 3.5350 3.5855 3.6360 3.6855 3.7370 3.7875 3.8380 3.8885 3.9390 3.9895 4.0400 4.0905 4.1410 4.1915 4.2420 4.2925 4.3430 4.3935 4.4440 4.4945 4.5450 4.5955 4.6460 4.6965 4.7470 4.7975 4.8480 4.8985 4.9490 4.9995 5.0500 TYP. MAX. 80 140 * For the USPN-4 package, 0.8VVOUT(T)1.15V is under development. 7/23 XC6221 Series OPERATIONAL EXPLANATION
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