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ACT4082A - 1.4MHz Step-Down DC/DC Converter

Download the ACT4082A datasheet PDF. This datasheet also covers the ACT4082A-Active variant, as both devices belong to the same 1.4mhz step-down dc/dc converter family and are provided as variant models within a single manufacturer datasheet.

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Note: The manufacturer provides a single datasheet file (ACT4082A-Active-Semi.pdf) that lists specifications for multiple related part numbers.

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

General Description

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

1.4MHz switching frequency allows the use of tiny external components, and internal loop compensation provides simple, stable power supplies with a minimum of

Overview

Active-Semi ACT4082A Rev0, 16-May-08 16V, 1.2A, 1.4MHz Step-Down DC/DC Converter in.

Key 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.

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