Data Sheet 600mA CMOS LDO REGULATOR WITH ENABLE AP2112 General Description Features Output Voltage Accuracy: 1.5% The AP2112 is CMOS process low dropout linear Output Current: 600mA (Min.) regulator with enable function, the regulator delivers Foldback Short Current Protection: 50mA a guaranteed 600mA (min.) continuous load current. Enable Function to Turn ON/OFF V OUT Low Dropout Voltage (3.3V): 250mV (Typ.) The AP2112 provides 1.2V, 1.8V, 2.5V, 2.6V, 2.8V I =600mA and 3.3V regulated output and 0.8V to 5V adjustable OUT Excellent Load Regulation: 0.2%/A (Typ.) output, and provides excellent output accuracy 1.5%, Excellent Line Regulation: 0.02%/V (Typ.) also provides an excellent load regulation, line Low Quiescent Current: 55A (Typ.) regulation and excellent load transient performance Low Standby Current: 0.01A (Typ.) due to very fast loop response. The AP2112 has Low Output Noise: 50V built-in auto discharge function. RMS PSRR: 100Hz -65dB, 1kHz -65dB OTSD Protection The regulator features low power consumption, and Stable with 1.0F Flexible Cap: Ceramic, provides SOT-23-5, SOT-89-5, and SOIC-8 packages. Tantalum and Aluminum Electrolytic Operation Temperature Range: -40C to 85C ESD: MM 400V, HBM 4000V Applications Laptop Computer Portable DVD LCD Monitor SOT-23-5 SOT-89-5 SOIC-8 (Option 1) SOIC-8 (Option 2) Figure 1. Package Types of AP2112 Mar. 2013 Rev. 2. 0 BCD Semiconductor Manufacturing Limited 1 Data Sheet 600mA CMOS LDO REGULATOR WITH ENABLE AP2112 Pin Configuration K Package M Package SOT-23-5 SOIC-8 R5/R5A Package SOT-89-5 R5 R5A VOUT VIN 5 4 1 23 EN GND NC Figure 2. Pin Configuration of AP2112 (Top View) Pin Descriptions PIN No. Name Descriptions SOT-23-5 SOT-89-5 SOIC-8 1 4 8 VIN Input Voltage 2 2 6, 7 GND GND 3 (R5) 3 5 EN Chip Enable, H normal work, L shutdown output 1 (R5A) Adjust Output for ADJ version/No Connection for Fixed 4 ADJ/NC Version 1 (R5) 2, 3, 4 NC No Connection 3 (R5A) 5 5 1 VOUT Output Voltage Mar. 2013 Rev. 2. 0 BCD Semiconductor Manufacturing Limited 2