ADM7171ACPZ-4.2-R7
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Analog Devices Inc. ADM7171ACPZ-4.2-R7

Manufacturer No:
ADM7171ACPZ-4.2-R7
Manufacturer:
Analog Devices Inc.
Package:
Bulk
Description:
ADM7171 - 1A HI PSRR FT LDO 4.2V
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The ADM7171ACPZ-4.2-R7 is a CMOS, low dropout linear regulator (LDO) produced by Analog Devices Inc. This regulator operates from an input voltage range of 2.3 V to 6.5 V and provides up to 1 A of output current, making it ideal for regulating high-performance analog and mixed-signal circuits operating from 6 V down to 1.2 V rails. The device features an advanced proprietary architecture that ensures high power supply rejection and low noise, along with excellent line and load transient response using a small 4.7 μF ceramic output capacitor.

Key Specifications

Parameter Value
Input Voltage Range 2.3 V to 6.5 V
Output Current Up to 1 A
Output Voltage Fixed: 4.2 V (other fixed and adjustable options available)
Dropout Voltage 84 mV at 1 A load
Initial Accuracy −0.5% (minimum), +1% (maximum)
Accuracy over Line, Load, and Temperature ±1.5%
Quiescent Current 0.7 mA with no load
Shutdown Current 0.25 μA at VIN = 5 V
Load Transient Response Typically 1.5 μs for a 1 mA to 500 mA load step
Package 8-lead, 3 mm × 3 mm LFCSP with exposed pad

Key Features

  • High power supply rejection and low noise
  • Excellent line and load transient response with a small 4.7 μF ceramic output capacitor
  • Adjustable and fixed output voltage options (fixed 4.2 V in this model)
  • Precision enable and soft start capabilities
  • Low shutdown current and quiescent current
  • Compact 8-lead, 3 mm × 3 mm LFCSP package with exposed pad for enhanced thermal performance

Applications

  • Regulation for noise-sensitive applications: ADC and DAC circuits, precision amplifiers, PLLs/VCOs, and clocking ICs
  • Communications and infrastructure
  • Medical and healthcare
  • Industrial and instrumentation

Q & A

  1. What is the input voltage range of the ADM7171ACPZ-4.2-R7?

    The input voltage range is from 2.3 V to 6.5 V.

  2. What is the maximum output current of the ADM7171ACPZ-4.2-R7?

    The maximum output current is up to 1 A.

  3. What is the output voltage of the ADM7171ACPZ-4.2-R7?

    The output voltage is fixed at 4.2 V, but other fixed and adjustable options are available in different models.

  4. What is the dropout voltage of the ADM7171ACPZ-4.2-R7?

    The dropout voltage is 84 mV at 1 A load.

  5. What is the quiescent current of the ADM7171ACPZ-4.2-R7?

    The quiescent current is 0.7 mA with no load.

  6. What is the shutdown current of the ADM7171ACPZ-4.2-R7?

    The shutdown current is 0.25 μA at VIN = 5 V.

  7. What is the load transient response time of the ADM7171ACPZ-4.2-R7?

    The load transient response is typically 1.5 μs for a 1 mA to 500 mA load step.

  8. What package type is the ADM7171ACPZ-4.2-R7 available in?

    The device is available in an 8-lead, 3 mm × 3 mm LFCSP package with an exposed pad.

  9. What are some typical applications of the ADM7171ACPZ-4.2-R7?

    Typical applications include regulation for noise-sensitive circuits, communications, medical and healthcare, and industrial and instrumentation.

  10. Does the ADM7171ACPZ-4.2-R7 support adjustable output voltage?

    While the ADM7171ACPZ-4.2-R7 is a fixed output voltage model, other models in the ADM7171 series offer adjustable output voltage options.

Product Attributes

Output Configuration:- 
Output Type:- 
Number of Regulators:- 
Voltage - Input (Max):- 
Voltage - Output (Min/Fixed):- 
Voltage - Output (Max):- 
Voltage Dropout (Max):- 
Current - Output:- 
Current - Quiescent (Iq):- 
Current - Supply (Max):- 
PSRR:- 
Control Features:- 
Protection Features:- 
Operating Temperature:- 
Mounting Type:- 
Package / Case:- 
Supplier Device Package:- 
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Similar Products

Part Number ADM7171ACPZ-4.2-R7 ADM7172ACPZ-4.2-R7 ADM7170ACPZ-4.2-R7
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Product Status Active Active Active
Output Configuration - Positive Positive
Output Type - Fixed Fixed
Number of Regulators - 1 1
Voltage - Input (Max) - 6.5V 6.5V
Voltage - Output (Min/Fixed) - 4.2V 4.2V
Voltage - Output (Max) - - -
Voltage Dropout (Max) - - -
Current - Output - 2A 500mA
Current - Quiescent (Iq) - 2 mA 2 mA
Current - Supply (Max) - 8.7 mA 5.1 mA
PSRR - - -
Control Features - Enable, Soft Start Enable, Soft Start
Protection Features - Over Current, Over Temperature Over Current, Over Temperature
Operating Temperature - -40°C ~ 125°C -40°C ~ 125°C
Mounting Type - Surface Mount Surface Mount
Package / Case - 8-WFDFN Exposed Pad, CSP 8-WFDFN Exposed Pad, CSP
Supplier Device Package - 8-LFCSP-WD (3x3) 8-LFCSP-WD (3x3)

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