Click to expand full text
Data Sheet
FEATURES
20 V, 500 mA, Low Noise LDO Regulator with Soft Start ADP7105
TYPICAL APPLICATION CIRCUITS
VIN = 8V CIN + 1µF VIN VOUT SENSE ON OFF 100k Ω 100k Ω + COUT 1µF VOUT = 5V
Input voltage range: 3.3 V to 20 V Maximum output current: 500 mA Low noise: 15 µV rms for fixed output versions PSRR performance of 60 dB at 10 kHz, VOUT = 3.3 V Reverse current protection Low dropout voltage: 350 mV at 500 mA Initial accuracy: ±0.8% Accuracy over line, load, and temperature: −2% to +1% Low quiescent current: 900 μA at VIN = 10 V, IOUT = 500 mA Low shutdown current: <50 µA at VIN = 12 V, stable with small 1 µF ceramic output capacitor 3 fixed output voltage options: 1.8, 3.3 V and 5 V Adjustable output from 1.