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ACT4533B - Step-Down DC/DC Converter

This page provides the datasheet information for the ACT4533B, a member of the ACT4533A Step-Down DC/DC Converter family.

Datasheet Summary

Description

ACT4533A/B 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.

ACT4533A/B provides up to 3.5 A output current at 125 kHz switching frequency.

Features

  • 40 V Input Voltage Surge.
  • 36 V Steady State Operation.
  • Up to 3.5 A output current.
  • Output Voltage up to 12 V.
  • 125 kHz Switching Frequency Eases EMI Design.
  • 91% Efficiency (VOUT = 5 V@2.4 A at VIN = 12 V).
  • Stable with Low-ESR Ceramic Capacitors to Allow Low-Profile Designs.
  • Integrated Over Voltage Protection.
  • Excellent EMI Performance.
  • Patented ActiveCC Sensorless Constant Current Control Improves Efficienc.

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Datasheet preview – ACT4533B

Datasheet Details

Part number ACT4533B
Manufacturer Qorvo
File Size 1.59 MB
Description Step-Down DC/DC Converter
Datasheet download datasheet ACT4533B Datasheet
Additional preview pages of the ACT4533B datasheet.

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Full PDF Text Transcription

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ACT4533A/B Wide Input Sensorless CC/CV Step-Down DC/DC Converter FEATURES • 40 V Input Voltage Surge • 36 V Steady State Operation • Up to 3.5 A output current • Output Voltage up to 12 V • 125 kHz Switching Frequency Eases EMI Design • 91% Efficiency (VOUT = 5 V@2.4 A at VIN = 12 V) • Stable with Low-ESR Ceramic Capacitors to Allow Low-Profile Designs • Integrated Over Voltage Protection • Excellent EMI Performance • Patented ActiveCC Sensorless Constant Current Control Improves Efficiency and Lowers Cost. • Resistor Programmable  Current Limit from 1.5 A to 4.0 A  Patented Cable Compensation from 0 to 0.25 Ω • ±7.
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