Data Sheet
6.5 V, 500 mA, Ultralow Noise, High PSRR, Fast Transient Response CMOS LDO ADM7170
FEATURES
Input voltage r...
Data Sheet
6.5 V, 500 mA, Ultralow Noise, High PSRR, Fast Transient Response CMOS LDO ADM7170
FEATURES
Input voltage range: 2.3 V to 6.5 V Maximum load current: 500 mA Low noise: 5 µV rms independent of output voltage at
100 Hz to 100 kHz Fast transient response: 1.5 μs for 1 mA to 500 mA load step 60 dB PSRR at 100 kHz Low dropout voltage: 42 mV at 500 mA load, VOUT = 3 V Initial accuracy: ±0.75% Accuracy over line, load, and temperature: ±1.25% Quiescent current, IGND = 0.7 mA at no load Low shutdown current: 0.25 μA at VIN = 5 V Stable with small 4.7 µF ceramic output capacitor Adjustable and fixed output voltage options: 1.2 V to 5.0 V Adjustable output from 1.2 V to VIN − VDO Precision enable Adjustable soft start 8-lead, 3 mm × 3 mm LFCSP package Supported by ADIsimPower tool
APPLICATIONS
Regulation to noise sensitive applications: ADC and DAC circuits, precision amplifiers, PLLs/VCOs, and clocking ICs
Communications and infrastructure Medical and healthcare Industrial and instrumentation
GENERAL DESCRIPTION
The ADM7170 is a CMOS, low dropout linear
regulator (LDO) that operates from 2.3 V to 6.5 V and provides up to 500 mA of output current. This high output current LDO is ideal for regulation of high performance analog and mixed signal circuits operating from 6 V down to 1.2 V rails. Using an advanced proprietary architecture, the device provides high power supply rejection and low noise, and achieves excellent line and load transient response with just a small 4.7 ...