Preliminary Datasheet 1A LOW NOISE CMOS LDO REGULATOR WITH ENABLE AP2115 General Description Features Output Voltage Accuracy: 1.5% The AP2115 is CMOS process low dropout linear regulator with enable function, the regulator delivers Output Current: 1A (Min.) Fold-back Short Current Protection: 50mA a guaranteed 1A (min.) continuous load current. Low Dropout Voltage (3.3V): 450mV (Typ.) I =1A The AP2115 features low power consumption. OUT Stable with 4.7 F Flexible Cap: Ceramic, Tantalum and Aluminum Electrolytic The AP2115 is available in 1.2V, 1.8V, 2.5V and Excellent Line Regulation: 0.02%/V (Typ.), 3.3V regulator output, and available in excellent 0.1%/V (Max.) I =30mA output accuracy 1.5%, it is also available in an OUT Excellent Load Regulation: 0.2%/A excellent load regulation and line regulation I =1mA to 1A performance. OUT Low Quiescent Current: 60 A (1.2V/1.8V/ The AP2115 is available in standard packages of 2.5V) SOIC-8 and SOT-89-5. Low Output Noise: 30 V RMS PSRR: 68dB Freq=1kHz (1.2V/1.8V) OTSD Protection Operation Temperature Range: -40 C to 85C ESD: MM 400V, HBM 4000V Applications LCD Monitor LCD TV STB SOIC-8 SOT-89-5 Figure 1. Package Types of AP2115 Jul. 2011 Rev 1. 1 BCD Semiconductor Manufacturing Limited 1 Preliminary Datasheet 1A LOW NOISE CMOS LDO REGULATOR WITH ENABLE AP2115 Pin Configuration R5 Package SOT-89-5 R5 R5A VOUT VIN 5 4 123 NC GND EN M Package SOIC-8 Figure 2. Pin Configuration of AP2115 (Top View) Pin Descriptions Pin No. Name Function SOT-89-5 SOIC-8 1 2, 3, 4 NC/EN No connection/Chip Enable 2 6, 7 GND GND Chip Enable, H normal work, L shutdown output/ No 3 5 EN/NC Connection 4 8 VIN Input Voltage 5 1 VOUT Output Voltage Jul. 2011 Rev 1. 1 BCD Semiconductor Manufacturing Limited 2