GENERAL DESCRIPTION The series are positive voltage regulator ICs fabricated by CMOS process. Each of these ICs consists of a voltage reference, an error amplifier, a resistor network for setting output voltage, a current limit circuit for current protection and a chip-enable circuit. The series feature high supply voltage ripple rejection, low dropout voltage, low noise, high output voltage accuracy, and low current consumption which make them ideal for use in various battery-powered devices. The series have 1.2V, 1.3V, 1.V, 1.8V, 2.V, 2.8V, 3.0V, 3.2V and 3.3V versions. The chips are available in standard SOT23-L package. APPLICATION CIRCUIT FEATURES Maximum Output Current:300mA Dropout Voltage: 160mV at 100mA (.0V type) Maximum Operating Voltage: 2~6.0V Range: 1.2V to.0v Highly Accurate: ±2% Low Standby Current: 0.1μA (TYP.) Low Quiescent Current: 2μA (TYP.) Operational Temperature Range: -40 ~8 Excellent Load Regulation: 12mV Typical High Ripple Rejection: 70dB Typicalf=1kHz Extremely Low Noise: 30μVrms (10Hz to 100kHz) Excellent Line Regulation: 4mV Typical Compatible with Low ESR Ceramic Capacitor (as Low as 1μF) VIN VOUT APPLICATION Battery powered equipment CIN 1μF VCE=V EN COUT 1μF GPS,DSC,MP4,PDA,DVD Camera Notebook Data communication Portable Games PIN CONFIGURATION SOT23-L Symbol Name Descriptions 1 VIN Input voltage VIN 1 VOUT 2 GND Ground GND CE 2 3 4 NC 3 CE 4 NC No connection Active high enable input pin. Logic high=enable, logic low=shutdown VOUT Regulated output voltage 1
ORERING AND MARKING INFORMATION Standard Part NO. Vout Package Packing Min. Quantity RoHS -12BTRAL 1.2V SOT23- Tape&Reel 3000PCS Lead Free -13BTRAL 1.3V SOT23- Tape&Reel 3000PCS Lead Free -1BTRAL 1.V SOT23- Tape&Reel 3000PCS Lead Free -18BTRAL 1.8V SOT23- Tape&Reel 3000PCS Lead Free -2BTRAL 2.V SOT23- Tape&Reel 3000PCS Lead Free -28BTRAL 2.8V SOT23- Tape&Reel 3000PCS Lead Free -30BTRAL 3.0V SOT23- Tape&Reel 3000PCS Lead Free -32BTRAL 3.2V SOT23- Tape&Reel 3000PCS Lead Free -33BTRAL 3.3V SOT23- Tape&Reel 3000PCS Lead Free ABSOLUTE MAXIMUM RATINGS Parameter Symbol Value Unit Input Voltage VIN 6. V Enable Input Voltage VCE -0.3 to VIN+0.3 V Output Current IOUT 300 ma Junction Temperature TJ 10 C Storage Temperature Range TSTG -6 to 10 C Lead Temperature (Soldering, 10sec) TLEAD 260 C Thermal Resistance (Note 2) θja 20 C /W ESD (Human Body Model) ESD 2000 V ESD (Machine Model) ESD 200 V RECOMMENDED OPERATING CONDITIONS Parameter Symbol Min Max Unit Input Voltage VIN 2 6 V Operating Junction Temperature Range TJ -40 8 C 2
ELECTRICAL CHARACTERISTICS ( =2.2V, T J =2 o C, C IN =1μF, C OUT =1μF, Bold typeface applies over -40 o C T J 8 o C, unless otherwise specified.) Parameter Symbol Conditions Min Typ Max Unit VOUT VIN=2.2V 1mA IOUT 30mA 1.176 1.2 1.224 V Input Voltage VIN 6 V Output Current IOUT VIN-VOUT=1V 200 ma Load Regulation VRLOAD VIN=2.2V 1mA IOUT 80mA 12 40 mv Line Regulation VRLINE 2.2V VIN 6V IOUT=30mA 4 16 mv IOUT=10mA 700 900 Dropout Voltage VDROP IOUT=100mA 700 900 IOUT=10mA 700 900 mv IOUT=200mA 700 900 Quiescent Current IQ VIN=2.2V, IOUT=0mA 2 0 μa Standby Current ISTD VIN=2.2V VCE in OFF mode 0.1 1 μa Power Supply Rejection Ratio PSRR Ripple 0.Vp-p, f=1khz VIN=2.2V 70 db Temperature Coefficient VOUT/ T ±120 μv/ C IOUT=30mA ( VOUT/VOUT)/ T ±100 ppm/ C Short Current Limit ILIMIT VOUT=0V 0 ma RMS Output Noise VNOISE TA=2 C 10Hz f 100kHz 30 μvrms CE "High" Voltage CE input voltage "High" 1. V CE "Low" Voltage CE input voltage "Low" 0.2 V CE Pull-down Resistance RPD 2. 10 MΩ 3
ELECTRICAL CHARACTERISTICS (continued) ( =2.8V, T J =2 o C, C IN =1μF, C OUT =1μF, Bold typeface applies over -40 o C T J 8 o C, unless otherwise specified.) Parameter Symbol Conditions Min Typ Max Unit VOUT VIN=2.8V 1mA IOUT 30mA 1.764 1.8 1.836 V Input Voltage VIN 6 V Output Current IOUT VIN-VOUT=1V 200 ma Load Regulation VRLOAD VIN=2.8V 1mA IOUT 80mA 12 40 mv Line Regulation VRLINE 2.3V VIN 6V IOUT=30mA 4 16 mv IOUT=10mA 20 40 Dropout Voltage VDROP IOUT=100mA 10 300 IOUT=10mA 200 400 mv IOUT=200mA 20 00 Quiescent Current IQ VIN=2.8V, IOUT=0mA 2 0 μa Standby Current ISTD VIN=2.8V VCE in OFF mode 0.1 1 μa Power Supply Rejection Ratio PSRR Ripple 0.Vp-p, f=1khz VIN=2.8V 70 db Temperature Coefficient VOUT/ T ±180 μv/ C IOUT=30mA ( VOUT/VOUT)/ T ±100 ppm/ C Short Current Limit ILIMIT VOUT=0V 0 ma RMS Output Noise VNOISE TA=2 C 10Hz f 100kHz 30 μvrms CE "High" Voltage CE input voltage "High" 1. V CE "Low" Voltage CE input voltage "Low" 0.2 V CE Pull-down Resistance RPD 2. 10 MΩ 4
ELECTRICAL CHARACTERISTICS (continued) ( =4.3V, T J =2 o C, C IN =1μF, C OUT =1μF, Bold typeface applies over -40 o C T J 8 o C, unless otherwise specified.) Parameter Symbol Conditions Min Typ Max Unit VOUT VIN=4.3V 1mA IOUT 30mA Input Voltage VIN 6 V Output Current IOUT VIN-VOUT=1V 200 ma Load Regulation VRLOAD VIN=4.3V 1mA IOUT 80mA 3.23 4 3.3 3.36 6 V 12 40 mv Line Regulation VRLINE 3.8V VIN 6V IOUT=30mA 4 16 mv IOUT=10mA 20 40 Dropout Voltage VDROP IOUT=100mA 10 300 IOUT=10mA 200 400 mv IOUT=200mA 20 00 Quiescent Current IQ VIN=4.3V, IOUT=0mA 2 0 μa Standby Current ISTD VIN=4.3V VCE in OFF mode 0.1 1 μa Power Supply Rejection Ratio PSRR Ripple 0.Vp-p, f=1khz VIN=4.3V 70 db Temperature Coefficient VOUT/ T ±330 μv/ C IOUT=30mA ( VOUT/VOUT)/ T ±100 ppm/ C Short Current Limit ILIMIT VOUT=0V 0 ma RMS Output Noise VNOISE TA=2 C 10Hz f 100kHz 30 μvrms CE "High" Voltage CE input voltage "High" 1. V CE "Low" Voltage CE input voltage "Low" 0.2 V CE Pull-down Resistance RPD 2. 10 MΩ
PERFORMANCE CHARACTERISTICS 1.4 3. 1.2 3.0 (V) 1.0 0.8 0.6 0.4-1.2 =2V =2.V =3V (V) 2. 2.0 1. 1.0-3.0 =3.3V =4V =6V 0.2 0. 0 0 100 10 200 20 300 30 Output Current (ma) 0 0 100 10 200 20 300 30 Output Current (ma) Figure 1. vs. Output Current Figure 2. vs. Output Current 1.4 3.0 1.2 3.2 (V) 1.0 0.8 0.6 0.4 0.2-1.2 =30mA (V) 3.00 2.7 2.0 2.2-3.0 =30mA 0 1 2 3 4 6 7 Input Voltage (V) 2.00 0 1 2 3 4 6 7 Input Voltage (V) Figure 3. vs. Input Voltage Figure 4. vs. Input Voltage 6
HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR PERFORMANCE CHARACTERISTICS AP2121 0.6 0.6 0. 0. Dropout Voltage (V) 0.4 0.3 0.2 Minimum Operating Requirement Dropout Voltage (V) 0.4 0.3 0.2 0.1-1.2 0.1-3.0 0 40 80 120 160 200 Output Current (ma) 0 40 80 120 160 200 Output Current (ma) Figure. Dropout Voltage vs. Output Current Figure 6. Dropout Voltage vs. Output Current 1.210 1.208 1.206 3.10 3.08 3.06 (V) 1.204 1.202 1.200 1.198 1.196 1.194 1.192-1.2 =2.2V =30mA (V) 3.04 3.02 3.00 2.98 2.96 2.94 2.92-3.0 =4V =30mA 1.190-2 0 2 0 7 100 12 Junction Temperature ( o C) 2.90-2 0 2 0 7 100 12 Junction Temperature ( o C) Figure 7. vs. Junction Temperature Figure 8. vs. Junction Temperature 7
PERFORMANCE CHARACTERISTICS 30 60 2 0 Supply Current (A) 20 1 10 Supply Current (A) 40 30 20-1.2 =0mA 10-3.0 =0mA 0 0 1 2 3 4 6 7 Input Voltage (V) 0 0 1 2 3 4 6 7 Input Voltage (V) Figure 9. Supply Current vs. Input Voltage Figure 10. Supply Current vs. Input Voltage 40 40 3 3 30 30 Supply Current (A) 2 20 1 10-1.2 =2.2V =0mA Supply Current (A) 2 20 1 10-3.0 =4V =0mA 0-2 0 2 0 7 100 12 Junction Temperature ( o C) 0-2 0 2 0 7 100 12 Junction Temperature ( o C) Figure 11. Supply Current vs. Junction Temperature Figure 12. Supply Current vs. Junction Temperature 8
PACKAGE INFORMATION SOT23-L D e1 4 E1 E A 1 e 2 3 b A1 L C L1 Symbol Dimensions In Millimeters Dimensions In Inches Min. Max. Min. Max. A 0.90 1.10 36 44 A1 1 0.13 004 02 b 0.30 12 20 C 9 0.20 036 08 D 2.80 3.00 0.112 0.120 E 2.0 3.10 0.100 0.124 E1 1.0 1.70 60 68 L 0.20 0. 08 22 L1 0.3 0.80 14 32 e 0.9 Bsc. 38 Bsc. e1 1.90 Bsc. 76 Bsc. 0 10 0 10 9