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  5. ADP124


Alternative Parts

Overview

Features and Benefits

  • Input voltage supply range: 2.3 V to 5.5 V
  • 500 mA maximum output current
  • Fixed and adjustable output voltage versions
  • 1% initial accuracy
  • Very low dropout voltage: 130 mV
  • Up to 31 fixed-output voltage options available from 1.75 V to 3.3 V
  • See datasheet for additional features

Product Details

The ADP124 / ADP125 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 500 mA of output current. The low 130 mV dropout voltage at a 500 mA load improves efficiency and allows operation over a wide input voltage range.

The low 210 μA of quiescent current with a 500 mA load makes the ADP124 / ADP125 ideal for battery-operated portable equipment. The ADP124 is capable of 31 fixed-output voltages from 1.75 V to 3.3 V. The ADP125 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 ADP124/ADP125 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 ADP124 / ADP125 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 ADP124 / ADP125 are available in an 8-lead exposed paddle MSOP package. When compared with the standard MSOP package, the exposed paddle MSOP package has lower thermal resistance (θJA). The lower thermal resistance package allows the ADP124 / ADP125 to meet the needs of a variety of portable applications while minimizing the rise in junction temperature.

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 load power

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits (2)

Software & Systems Requirements

Tools & Simulations

LTspice

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.

LTspice

Models for the following parts are available in LTspice:

ADP124-1.8
ADP124-2.5
ADP124-2.7
ADP124-2.8
ADP124-2.85
ADP124-2.9
ADP124-3.0
ADP124-3.3

Design Tools

ADI Linear Regulator Design Tool and Parametric Search

Microsoft Excel download tool from ADIsimPower to generate a power supply design complete with a schematic, bill of materials, and performance specifications.

Reference Designs (1)

Design Resources

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 Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
ADP124ACPZ-1.8-R7 Material Declaration Reliability Data 8-Lead LFCSP (2mm x 2mm w/ EP)
ADP124ACPZ-2.8-R7 Material Declaration Reliability Data 8-Lead LFCSP (2mm x 2mm w/ EP)
ADP124ACPZ-2.9-R7 Material Declaration Reliability Data 8-Lead LFCSP (2mm x 2mm w/ EP)
ADP124ACPZ-3.0-R7 Material Declaration Reliability Data 8-Lead LFCSP (2mm x 2mm w/ EP)
ADP124ACPZ-3.3-R7 Material Declaration Reliability Data 8-Lead LFCSP (2mm x 2mm w/ EP)
ADP124ARHZ-1.8-R7 Material Declaration Reliability Data 8-Lead MSOP w/ EP
ADP124ARHZ-2.5-R7 Material Declaration Reliability Data 8-Lead MSOP w/ EP
ADP124ARHZ-2.7-R7 Material Declaration Reliability Data 8-Lead MSOP w/ EP
ADP124ARHZ-2.8-R7 Material Declaration Reliability Data 8-Lead MSOP w/ EP
ADP124ARHZ-2.85-R7 Material Declaration Reliability Data 8-Lead MSOP w/ EP
ADP124ARHZ-2.9-R7 Material Declaration Reliability Data 8-Lead MSOP w/ EP
ADP124ARHZ-3.0-R7 Material Declaration Reliability Data 8-Lead MSOP w/ EP
ADP124ARHZ-3.3-R7 Material Declaration Reliability Data 8-Lead MSOP w/ EP
Wafer Fabrication Data

PCN-PDN Information

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Sample & Buy


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Evaluation Boards

Pricing displayed is based on 1-piece.

Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.