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ACT4082A - 1.4MHz Step-Down DC/DC Converter

This page provides the datasheet information for the ACT4082A, a member of the ACT4082A-Active 1.4MHz Step-Down DC/DC Converter family.

Description

The ACT4082A is a current-mode step-down DC/DC converter that supplies up to 1.2A into 5V from a 12V input.

Features

  • Wide 4.5V to 16V Input Voltage Range.
  • 1.2A Output Current (12VIN to 5VOUT).
  • Output Adjustable Down to 0.81V.
  • 0.3Ω Internal Power MOSFET.
  • Up to 92% Efficiency.
  • Stable with Low ESR Ceramic Output Capacitors.
  • Fixed 1.4MHz Operating Frequency.
  • Internal Soft-Start Function.
  • Over Current Protection with Hiccup-Mode.
  • Thermal Shutdown.
  • Available in a SOT23-6 Package.

📥 Download Datasheet

Datasheet preview – ACT4082A

Datasheet Details

Part number ACT4082A
Manufacturer Active-Semi
File Size 413.79 KB
Description 1.4MHz Step-Down DC/DC Converter
Datasheet download datasheet ACT4082A Datasheet
Additional preview pages of the ACT4082A datasheet.

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Full PDF Text Transcription

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Active-Semi ACT4082A Rev0, 16-May-08 16V, 1.2A, 1.4MHz Step-Down DC/DC Converter in SOT23-6 FEATURES • Wide 4.5V to 16V Input Voltage Range • 1.2A Output Current (12VIN to 5VOUT) • Output Adjustable Down to 0.81V • 0.3Ω Internal Power MOSFET • Up to 92% Efficiency • Stable with Low ESR Ceramic Output Capacitors • Fixed 1.4MHz Operating Frequency • Internal Soft-Start Function • Over Current Protection with Hiccup-Mode • Thermal Shutdown • Available in a SOT23-6 Package APPLICATIONS • TFT LCD Monitors • Portable DVDs, Headphones, MP3 Players, etc. • Car-Powered or Battery-Powered Equipment • Set-Top Boxes • Telecom Power Supplies • DSL and Cable Modems and Routers GENERAL DESCRIPTION The ACT4082A is a current-mode step-down DC/DC converter that supplies up to 1.
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