NIKO-SEM 200mA Fixed Voltage Low Dropout Linear Regulator (LDO) - Preliminary L1212 Series SOT-23 GENERAL DESCRIPTION FEATURES The L1212 Series are positive and low dropout voltage regulators with 200mA output current capability. These devices are designed for use in low voltage applications that offers lower dropout voltage and faster transient response. z Fixed 1.5V, 1.8V, 2.5V, 3.3V output voltage z Low dropout voltage: 0.2V typical at up to 200mA z Small output capacitor z Low ground current z Fast transient response z Current & thermal limiting z Line regulation: 0.2%/V typical z Load regulation: 0.002%/mA typical z SOT-23, SOT-25 package These devices are fully protected against over current faults, over temperature operation, transient voltage spike ...etc. On-Chips trimming the reference voltage to 1% and features the low dropout of typical 0.2 volts at 200mA typical. APPLICATIONS z 5V to 2.5V or 3.3V linear regulators z Low voltage micro-controllers z Battery Chargers z Motherboard clock supplies z Post regulator for switching supplies z Micro-controllers The L1212 Series regulators offer fixed voltage options available in the popular industry standard SOT-23, and SOT-25 packages. Function Block Diagram IN + Current Limit & Thermal Protection Shutdown Logic OUT + - R1 100 R2 1.25V Bandgap Reference GND Fixed Voltage Type 1 NOV-03-2004 NIKO-SEM L1212 Series 200mA Fixed Voltage Low Dropout Linear Regulator (LDO) - Preliminary SOT-23 ABSOLUTE MAXIMUM RATINGS z Maximum Supply Voltage z Operating Junction Temperature Range z Storage Temperature Range z Lead Temperature (Soldering, 10 Seconds) 7V z Power Dissipation 0.25W z Thermal Resistance Junction to Case, JA 250 C/W -40 to 125 C -65 to 150 C 275 C ELECTRICAL CHARACTERISTICS for Fixed Voltage (Unless otherwise specified, TA = 25C) Parameter Symbol Test Conditions Typ. 2.5V 2.8V Input Voltage Range VIN IOUT = 50mA Output Voltage Dropout Voltage VO VD VIN = VOUT + 1V, IOUT = 1mA VO = 1%, IOUT = 100mA VO = 1%, IOUT = 200mA (VOUT + 1.0V) VIN 6.5V, IOUT = 1mA 0mA IOUT 0.2A IOUT = 0mA IOUT = 200mA Line Regulation VLINE Load Regulation VLOAD Ground Pin IG Current Current Limit ICL Shutdown Input VIH VIN=3V to 5.5V High Threshold Shutdown Input VIL VIN=3V to 5.5V Low Threshold Shutdown Bias ISD Current Shutdown Supply IGSD Current Thermal Shutdown TSD Protection RMS Output Noise VN Freq. = 1Hz to 10KHz, COUT=10uF Ripple Rejection Min. PSRR Freq. = 10KHz, COUT = 10F 2 VO-35mV 0.25A 1.6V Max. 6.5V 6.5V VO VO+35mV 0.06V 0.1V 0.2V 0.3V 0.2%/V 0.3%/V 0.002%/mA 0.003%/mA 65A 90A 65A 150A 0.4A 0.4V 100nA 0.01uA 1uA 170 80VRMS 75dB NOV-03-2004 NIKO-SEM 200mA Fixed Voltage Low Dropout Linear Regulator (LDO) - Preliminary L1212 Series SOT-23 DEVICE SELECTION GUIDE Device Voltage Version Package Marking L1212M3-1.5A 1.5 SOT-23 1215A L1212M3-1.8A 1.8 SOT-23 1218A L1212M3-2.5A 2.5 SOT-23 1225A L1212M3-3.3A 3.3 SOT-23 1233A Device Voltage Version Package Marking L1212M5-1.5Z 1.5 SOT-23-5 1215Z L1212M5-1.8Z 1.8 SOT-23-5 1218Z L1212M5-2.5Z 2.5 SOT-23-5 1225Z L1212M5-3.3Z 3.3 SOT-23-5 1233Z Device Voltage Version Package Marking L1212M5-1.5Y 1.5 SOT-23-5 1215Y L1212M5-1.8Y 1.8 SOT-23-5 1218Y L1212M5-2.5Y 2.5 SOT-23-5 1225Y L1212M5-3.3Y 3.3 SOT-23-5 1233Y TYPICAL APPLICATION L1212X-XX Vin 1uF Vout 1uF GND L1212X-XX Vin ON SHDN Vin BP Vout Vout GND OFF 10nF 1uF 3 1uF NOV-03-2004 NIKO-SEM 200mA Fixed Voltage Low Dropout Linear Regulator (LDO) - Preliminary L1212 Series SOT-23 PIN CONFIGURATIONS 5 2 1 3 1 Pin # Function 1 Ground 2 Input 3 Output 4 2 3 L1212M3-XXA PIN Assignment Pin # Function Pin # Function 1 Input 1 Output 2 Ground 2 Ground 3 SHDN 3 Input 4 BP 4 SHDN 5 BP 5 Output L1212M5-XXZ PIN Assignment L1212M5-XXY PIN Assignment Pin Description Pin Name Pin Function Input Input Ground SHDN BP Output Ground Active Low Shutdown Input Reference Noise Bypass Output 4 NOV-03-2004 L1212 Series 200mA Fixed Voltage Low Dropout Linear Regulator (LDO) - Preliminary NIKO-SEM SOT-23 Typical Performance Characteristics Load Transient Response = 1 F ,C in = 10 F ,C BP Load Transient Response = 10 nF C Output Voltage Deviation( mV ) out 100 0 -100 100 Load Current ( mA ) Load Current ( mA ) Output Voltage Deviation( mV ) C 10 Time 200S / div out = 10 F ,C in = 10 F ,C BP = 10 nF VIN = 5V VOUT = 3.3V 100 0 -100 200 10 Time 200S / div 5 NOV-03-2004 NIKO-SEM 200mA Fixed Voltage Low Dropout Linear Regulator (LDO) - Preliminary L1212 Series SOT-23 Line Transient Response Output Voltage Deviation( mV ) Input Voltage Deviation( V ) C out = 1 F ,C in = 10 F ,C BP = 10 nF 5 4 2 50 -50 Time 10mS / div 6 NOV-03-2004 200mA Fixed Voltage Low Dropout Linear Regulator (LDO) - Preliminary NIKO-SEM L1212 Series SOT-23 SOT-23 (M3) MECHANICAL DATA mm Dimension Min. mm Typ. Max. Dimension Min. Typ. Max. 0.15 0.25 A 0.85 1.15 H 0.1 B 2.4 3 I 0.37 C 1.4 1.6 1.8 J D 2.7 2.9 3.1 K E 1 1.1 1.3 L F 0 0.1 M G 0.35 0.5 N H 2 C 1 B 3 A I D E F G 7 NOV-03-2004 NIKO-SEM 200mA Fixed Voltage Low Dropout Linear Regulator (LDO) - Preliminary L1212 Series SOT-23 SOT-23 (M5) MECHANICAL DATA mm Dimension mm Dimension Min. Typ. Max. Min. A 1.0 1.10 1.30 e A1 0.00 0.10 H 2.60 A2 0.70 0.80 0.90 L 0.37 b 0.35 0.40 0.50 C 0.10 0.15 0.25 D 2.70 2.90 3.10 E 1.40 1.60 1.80 Typ. Max. 1.90(TYP) 2.80 3.00 C D L HE e A A2 A1 b 8 NOV-03-2004