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ACT4533 - Wide-Input Sensorless CC/CV Step-Down DC/DC Converter

This page provides the datasheet information for the ACT4533, a member of the ACT4533-Active Wide-Input Sensorless CC/CV Step-Down DC/DC Converter family.

Datasheet Summary

Description

ACT4533 is a wide input voltage, high efficiency Active CC step-down DC/DC converter that operates in either CV (Constant Output Voltage) mode or CC (Constant Output Current) mode.

ACT4533 provides up to 3A output current at 125kHz switching frequency.

Features

  • 40V Input Voltage Surge.
  • 32V Steady State Operation.
  • Up to 3A Output Current.
  • Constant Current Output with Input up to 32V.
  • Output Voltage up to 12V.
  • 125kHz Switching Frequency Eases EMI Design.
  • Good EMI Performance to Pass EN55022 Radiation Regulation without adding EMI Components.
  • Patent Pending Active CC Sensorless Constant Current Control.
  • Integrated Current Control Improves Efficiency, Lowers Cost, and Reduces.

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Datasheet preview – ACT4533

Datasheet Details

Part number ACT4533
Manufacturer Active-Semi
File Size 594.47 KB
Description Wide-Input Sensorless CC/CV Step-Down DC/DC Converter
Datasheet download datasheet ACT4533 Datasheet
Additional preview pages of the ACT4533 datasheet.

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Full PDF Text Transcription

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ACT4533 Rev 1, 25-Feb-13 Wide-Input Sensorless CC/CV Step-Down DC/DC Converter FEATURES • 40V Input Voltage Surge • 32V Steady State Operation • Up to 3A Output Current • Constant Current Output with Input up to 32V • Output Voltage up to 12V • 125kHz Switching Frequency Eases EMI Design • Good EMI Performance to Pass EN55022 Radiation Regulation without adding EMI Components • Patent Pending Active CC Sensorless Constant Current Control − Integrated Current Control Improves Efficiency, Lowers Cost, and Reduces Component Count • Resistor Programmable − Current Limit from 1.5A to 3A − Patented Cable Compensation from 0 to 0.3Ω • ±7.
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