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ACT4523A - Wide-Input Sensorless CC/CV Step-Down DC/DC Converter

Download the ACT4523A datasheet PDF. This datasheet also covers the ACT4523A-Active variant, as both devices belong to the same wide-input sensorless cc/cv step-down dc/dc converter family and are provided as variant models within a single manufacturer datasheet.

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.

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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (ACT4523A-Active-Semi.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number ACT4523A
Manufacturer Active-Semi
File Size 391.40 KB
Description Wide-Input Sensorless CC/CV Step-Down DC/DC Converter
Datasheet download datasheet ACT4523A Datasheet

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ACT4524 40V/3.5A Buck Converter Qorvo
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Other Datasheets by Active-Semi

Part Number Description
ACT4523 Wide-Input Sensorless CC/CV Step-Down DC/DC Converter
ACT4524 40V/3.5A Buck Converter
ACT4525 40V/3.5A CV/CC Buck Converter
ACT4526 40V/3.0A CV/CC Buck Converter
ACT4527 CV/CC Buck Converter

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
ACT4523A Rev 0, 25-Jul-13 Wide-Input Sensorless CC/CV Step-Down DC/DC Converter 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 Compensation from 0 to 0.25Ω • ±6.