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ADM7171

Analog Devices
Part Number ADM7171
Manufacturer Analog Devices
Description Fast Transient Response CMOS LDO
Published Dec 11, 2014
Detailed Description Data Sheet 6.5 V, 1 A, Ultralow Noise, High PSRR, Fast Transient Response CMOS LDO ADM7171 FEATURES Input voltage rang...
Datasheet PDF File ADM7171 PDF File

ADM7171
ADM7171

Overview
Data Sheet 6.
5 V, 1 A, Ultralow Noise, High PSRR, Fast Transient Response CMOS LDO ADM7171 FEATURES Input voltage range: 2.
3 V to 6.
5 V Maximum load current: 1 A 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.
5% (minimum), +1% (maximum) Accuracy over line, load, and temperature: ±1.
5% Quiescent current, IGND = 0.
7 mA with 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 ADM7171 is a CMOS, low dropout linear regulator (LDO) that operates from 2.
3 V to 6.
5 V and provides up to 1 A 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 μF ceramic output capacitor.
Load transient response is typically 1.
5 μs for a 1 mA to 500 mA load step.
The ADM7171 is available in 17 fixed output voltage options.
The following voltages are available from stock: 1.
3 V, 1.
8 V, 2.
5 V, 3.
0 V, 3.
3 V, 4.
2 V, and 5.
0 V.
Additional voltages that are available by special order are: 1.
5 V, 1.
85 V, 2.
0 V, 2.
2 V, 2.
7 V, 2.
75 V, 2.
8 V, 2.
85 V, 3.
8 V, and 4.
6 V.
An adjustable version is also available that allows output voltages that ...


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