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ACT4050 - Wide Input 3.5A Step Down Converter

Download the ACT4050 datasheet PDF. This datasheet also covers the ACT4050-Active variant, as both devices belong to the same wide input 3.5a step down converter family and are provided as variant models within a single manufacturer datasheet.

Description

The ACT4050 is a current-mode step-down DC/DC converter that provides up to 3.5A of output current at 400kHz switching frequency.

The device utilizes Active-Semi’s proprietary high voltage process for operation with input voltages up to 15V.

Features

  • 3.5A Output Current.
  • Up to 96% Efficiency.
  • 4.5V to 15V Input Range.
  • 12µA Shutdown Supply Current.
  • 400kHz Switching Frequency.
  • Adjustable Output Voltage From 0.817V.
  • Cycle-by-Cycle Current Limit Protection.
  • Thermal Shutdown Protection.
  • Frequency Fold-Back at Short Circuit.
  • Stability with Wide Range of Capacitors, Including Low ESR Ceramic Capacitors.
  • SOP-8/EP (Exposed Pad) Package.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (ACT4050-Active-Semi.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number ACT4050
Manufacturer Active-Semi
File Size 404.10 KB
Description Wide Input 3.5A Step Down Converter
Datasheet download datasheet ACT4050 Datasheet

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Other Datasheets by Active-Semi

Part Number Description
ACT4012 Wide Input 1.5A Step Down Converter
ACT4012A Wide Input 1.5A Step Down Converter
ACT4060 Wide Input 2A Step Down Converter
ACT4060A Wide Input 2A Step Down Converter
ACT4060B 18V/2A Step-Down DC/DC Converter

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Active-Semi ACT4050 Rev 2, 01-Jul-11 Wide Input 3.5A Step Down Converter FEATURES • 3.5A Output Current • Up to 96% Efficiency • 4.5V to 15V Input Range • 12µA Shutdown Supply Current • 400kHz Switching Frequency • Adjustable Output Voltage From 0.817V • Cycle-by-Cycle Current Limit Protection • Thermal Shutdown Protection • Frequency Fold-Back at Short Circuit • Stability with Wide Range of Capacitors, Including Low ESR Ceramic Capacitors • SOP-8/EP (Exposed Pad) Package APPLICATIONS • Digital TV • Portable DVDs • Car-Powered or Battery-Powered Equipments • Set-Top Boxes • Telecom Power Supplies • Consumer Electronics GENERAL DESCRIPTION The ACT4050 is a current-mode step-down DC/DC converter that provides up to 3.5A of output current at 400kHz switching frequency.
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