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ADM7172ACPZ-R7
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Product Detailed Parameters
- Description：IC REG LIN POS ADJ 2A 8-LFCSP-WD
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Adjustable
- Number of Regulators：1
- Voltage - Input (Max)：6.5V
- Voltage - Output (Min/Fixed)：1.2V
- Voltage - Output (Max)：6.23V
- Voltage Dropout (Max)：.27V @ 2A
- Current - Output：2A
- Current - Quiescent (Iq)：2 mA
- Current - Supply (Max)：8.7 mA
- PSRR：60db ~ 20dB (100kHz ~ 1MHz)
- Control Features：Enable, Soft Start
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：8-WFDFN Exposed Pad, CSP
- Supplier Device Package：8-LFCSP-WD (3x3)
- Grade：-
- Qualification：-
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Overview
The ADM7172ACPZ-R7 is a CMOS low dropout linear regulator (LDO) manufactured by Analog Devices Inc. It operates within an input voltage range of 2.3 V to 6.5 V and delivers up to 2 A of output current. The device features ultralow noise performance, achieving 5 µV rms in the 100 Hz to 100 kHz bandwidth. It provides high power supply rejection ratio (PSRR) of 60 dB at 100 kHz and fast transient response with a typical recovery time of 1.5 μs for a 1 mA to 1.5 A load step. The component utilizes a small 4.7 µF ceramic output capacitor and offers fixed or adjustable output options.
Feature Summary
- Ultralow noise architecture providing stable regulation for sensitive analog circuits
- High power supply rejection ratio ensuring effective noise filtering across frequencies
- Fast transient response capability for rapid load changes
- Precision enable pin with programmable soft start functionality
Applications
- Regulation for ADC and DAC circuits
- Powering precision amplifiers
- PLL/VCO and clocking IC applications
- Medical and healthcare equipment
- Industrial instrumentation systems
Procurement Notes
Verify the specific suffix R7 indicates reel packaging when reviewing distributor listings. Confirm the fixed output voltage matches the required system rail, as the base model number represents the series rather than a single voltage. Ensure the LFCSP-8 package footprint aligns with the PCB layout design. Check for moisture sensitivity level requirements during storage and handling procedures.
Selection Notes
Select this regulator for designs requiring high current delivery with minimal noise impact on signal integrity. Consider the thermal resistance characteristics of the 8-lead LFCSP package for heat dissipation under full load conditions. Evaluate the minimum input-to-output voltage differential to ensure operation remains within the specified dropout limits. Verify that the external capacitor selection meets the stability requirements for the chosen load profile.
Part Context
This component belongs to the ADM7172 family of high-performance LDOs from Analog Devices. It shares architectural similarities with the ADM7170 and ADM7171 but distinguishes itself through higher current capacity. The device is designed to replace older generation regulators in portable and battery-powered applications where efficiency and noise suppression are critical constraints.
Replacement Considerations
ADM7171ACPZ-R7
FAQ
What is the maximum load current supported by the ADM7172?
The device supports a maximum load current of 2 A.
How does the device handle overcurrent protection?
It includes internal current-limit and thermal overload protection mechanisms to safeguard against excessive load or temperature conditions.
