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ACT4523A Datasheet Wide-input Sensorless Cc/cv Step-down DC/dc Converter

Manufacturer: Active-Semi

Overview: ACT4523A Rev 0, 25-Jul-13 Wide-Input Sensorless CC/CV Step-Down DC/DC.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

ACT4523A is a wide input voltage, high efficiency ActiveCC step-down DC/DC converter that operates in either CV (Constant Output Voltage) mode or CC (Constant Output Current) mode.

ACT4523A provides up to 3.5A output current at 250kHz switching frequency.

Active CC is a patented control scheme to achieve highest accuracy with sensorless constant current control.

Key Features

  • 40V Input Voltage Surge.
  • 36V Steady State Operation.
  • Up to 3.5A Output Current.
  • Output Voltage up to 12V.
  • 250kHz Switching Frequency.
  • 91% Efficiency (Vout = 5V@3.5A at Vin = 12V).
  • Patented ActiveCC Sensorless Constant Current Control.
  • Integrated Current Control Improves Efficiency, Lowers Cost, and Reduces Component Count.
  • Resistor Programmable.
  • Current Limit from 1.5A to 4.0A.
  • Patented Cable Comp.

ACT4523A Distributor