ADP122
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ADP122

5.5 V Input, 300 mA, Low Quiescent Current, CMOS Linear Regulator, Fixed Output Voltage

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LTspice ADP122 - LDO Linear Regulators Download 0.79 KB
Part Models 10
1ku List Price Starting From $0.42
Features
  • Input voltage supply range: 2.3 V to 5.5 V
  • 300 mA maximum output current
  • Fixed and adjustable output voltage versions
  • Very low dropout voltage:  85 mV at 300 mA load
  • Low quiescent current: 45 μA at no load
  • Low shutdown current: <1 μA
  • Initial accuracy: ±1% accuracy
  • See Data Sheet for additional features
Additional Details
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The ADP122 / ADP123 are low quiescent current, low dropout linear regulators. They are designed to operate from an input voltage between 2.3 V and 5.5 V and to provide up to 300 mA of output current. The low 85 mV dropout voltage at a 300 mA load improves efficiency and allows operation over a wide input voltage range.

The low 170 μA of quiescent current at full load makes the ADP122 ideal for battery-operated portable equipment.

The ADP122 is capable of 31 fixed output voltages from 1.75 V to 3.3 V. The ADP123 is the adjustable version of the device and allows the output voltage to be set between 0.8 V and 5.0 V by an external voltage divider.

The ADP122 / ADP123 are specifically designed for stable operation with tiny 1 μF ceramic input and output capacitors to meet the requirements of high performance, space constrained applications.

The ADP122 / ADP123 have an internal soft start that gives a constant start-up time of 350 μs. Short-circuit protection and thermal overload protection circuits prevent damage in adverse conditions. The ADP122 / ADP123 are available in a tiny, 5-lead TSOT package and 6-lead LFCSP package for the smallest footprint solution to meet a variety of portable applications.

APPLICATIONS

  • Digital camera and audio devices
  • Portable and battery-powered equipment
  • Automatic meter reading (AMR) meters
  • GPS and location management units
  • Medical instrumentation
  • Point-of-sale equipment
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file View Data Sheet (Rev.E)
Documentation View All Documentation
LTspice ADP122 - LDO Linear Regulators Download 0.79 KB
Part Models 10
1ku List Price Starting From $0.42
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ADP122

Documentation

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Data Sheet

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UPDATED 10/28/2009
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ADP122/ADP123: 5.5 V Input, 300 mA, Low Quiescent Current, CMOS Linear Regulator Datasheet (Rev.E)

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User Guide

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UPDATED 03/11/2010
English
UG-055: RedyKit for the ADP122/ADP123 LDO redirect icon

370 kB

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Download PDF

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UPDATED 03/11/2010
Chinese
UG-055：用于ADP122/ADP123 LDO的RedyKit redirect icon

370 kB

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UPDATED 08/20/2010
English
UG-147: RedyKit for the ADP122 LDO redirect icon

163 kB

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Download PDF

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UPDATED 08/20/2010
Chinese
UG-147：用于ADP122 LDO的RedyKit redirect icon

163 kB

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Evaluation Design File

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UPDATED 04/12/2010
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Power Management RedyKit redirect icon

1124 kB

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Application Note

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UPDATED 04/27/2010
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AN-1072: How to Successfully Apply Low Dropout Regulators redirect icon

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UPDATED 11/08/2010
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AN-1072: 在系统中成功运用低压差稳压器 (Rev.0) redirect icon

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UPDATED 04/27/2010
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低ドロップアウト・レギュレータの活用方法 (Rev.AN-1072) redirect icon

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Frequently Asked Question

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UPDATED 06/17/2015
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Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
ADP122ACPZ-1.8-R7 6-Lead LFCSP (2mm x 2mm w/ EP) external-link
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  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
ADP122ACPZ-3.0-R7 6-Lead LFCSP (2mm x 2mm w/ EP) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
ADP122ACPZ-3.3-R7 6-Lead LFCSP (2mm x 2mm w/ EP) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
ADP122AUJZ-2.5-R7 5-Lead TSOT external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
ADP122AUJZ-2.7-R7 5-Lead TSOT external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
ADP122AUJZ-2.8-R7 5-Lead TSOT external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
ADP122AUJZ-2.85-R7 5-Lead TSOT external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
ADP122AUJZ-2.9-R7 5-Lead TSOT external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
ADP122AUJZ-3.0-R7 5-Lead TSOT external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
ADP122AUJZ-3.3-R7 5-Lead TSOT external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link

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Part Models

Product Lifecycle

PCN

Aug 8, 2022

- 22_0192

Qualification of an Alternate Adhesive Material and Molding Compound for Select LFCSP Packages

ADP122ACPZ-1.8-R7

PRODUCTION

ADP122ACPZ-3.0-R7

PRODUCTION

ADP122ACPZ-3.3-R7

PRODUCTION

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PCN22_0192_Form

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Material_Report

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Detailed Change Description

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Qualification Results Summary

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Oct 18, 2016

- 16_0036

Assembly Relocation to Stats ChipPAC Jiangyin and Test Transfer to Stats ChipPAC Singapore of Select LFCSP Products

ADP122ACPZ-1.8-R7

PRODUCTION

ADP122ACPZ-3.0-R7

PRODUCTION

ADP122ACPZ-3.3-R7

PRODUCTION

pdf

PCN16_0036_Form

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xls

Material_Report

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pdf

Qualification Results Summary

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Qualification Results Summary

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Qualification Results Summary

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Test Correlation Report

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Aug 6, 2014

- 13_0244

Assembly and Test Transfer of Select 2x2 and 1.6x1.6 mm Mini-LFCSP Products to STATS ChipPAC China

ADP122ACPZ-1.8-R7

PRODUCTION

ADP122ACPZ-3.0-R7

PRODUCTION

ADP122ACPZ-3.3-R7

PRODUCTION

pdf

PCN13_0244_Form

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xls

Material_Report

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Detailed Change Description

pdf

Qualification Results Summary

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pdf

Test Correlation Report

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Part Models

Product Lifecycle

PCN

Aug 8, 2022

- 22_0192

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Qualification of an Alternate Adhesive Material and Molding Compound for Select LFCSP Packages

ADP122ACPZ-1.8-R7

PRODUCTION

ADP122ACPZ-3.0-R7

PRODUCTION

ADP122ACPZ-3.3-R7

PRODUCTION

pdf

PCN22_0192_Form

external-icon

xls

Material_Report

Download

pdf

Detailed Change Description

external-icon

pdf

Qualification Results Summary

external-icon
Oct 18, 2016

- 16_0036

arrow down

Assembly Relocation to Stats ChipPAC Jiangyin and Test Transfer to Stats ChipPAC Singapore of Select LFCSP Products

ADP122ACPZ-1.8-R7

PRODUCTION

ADP122ACPZ-3.0-R7

PRODUCTION

ADP122ACPZ-3.3-R7

PRODUCTION

pdf

PCN16_0036_Form

external-icon

xls

Material_Report

Download

pdf

Qualification Results Summary

external-icon

pdf

Qualification Results Summary

external-icon

pdf

Qualification Results Summary

external-icon

pdf

Test Correlation Report

external-icon
Aug 6, 2014

- 13_0244

arrow down

Assembly and Test Transfer of Select 2x2 and 1.6x1.6 mm Mini-LFCSP Products to STATS ChipPAC China

ADP122ACPZ-1.8-R7

PRODUCTION

ADP122ACPZ-3.0-R7

PRODUCTION

ADP122ACPZ-3.3-R7

PRODUCTION

pdf

PCN13_0244_Form

external-icon

xls

Material_Report

Download
Detailed Change Description

pdf

Qualification Results Summary

external-icon

pdf

Test Correlation Report

external-icon

Evaluation Kits 1

EVAL-ADP122

ADP122 Evaluation Board

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EVAL-ADP122

ADP122 Evaluation Board

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EVAL-ADP122
ADP122 Evaluation Board

Features and Benefits

  • Two fully assembled and tested evaluation boards per kit
  • Full set of IC voltage options in each kit
  • 3 samples of each IC voltage option packed in separate antistatic bags
  • Kit allows the user to quickly evaluate all IC voltage options
  • Only need to order one kit per product family
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Product Detail

This product has individual evaluations boards at specific voltages or with specific features as well as the RedyKit&tm;. The RedyKit simplifies product evaluation by providing two assembled and tested evaluation boards, plus a full set of product (voltage) options for an IC regulator. All the IC options come sorted and stored in the kit with the Analog Devices part number clearly printed on each antistatic zip-top bag.


Simple device measurements such as line and load regulation, dropout, and ground current can be demonstrated with just a single voltage supply, a voltmeter, a current meter, and load resistors.

Resources

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UG-055: RedyKit for the ADP122/ADP123 LDO Download

370 kB

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Power Management RedyKit Download

1124 kB

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UG-147: RedyKit for the ADP122 LDO Download

163 kB

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Evaluation Kits1

EVAL-ADP122

ADP122 Evaluation Board

Tools & Simulations 2

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

spice tool Lt Spice

ADP122 - LDO Linear Regulators Download

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