ACT4529 Datasheet PDF (40V/3.0A CV/CC Buck Converter)

Download the ACT4529 datasheet PDF. This datasheet also includes the ACT4529-Active variant, as both parts are published together in a single manufacturer document.

📥 Download Datasheet

ACT4529 40v/3.0a cv/cc buck converter by Active-Semi - Datasheet Preview — Note: The manufacturer provides a single datasheet file (ACT4529-Active-Semi.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number	ACT4529
Manufacturer	Active-Semi
File Size	1.40 MB
Description	40V/3.0A CV/CC Buck Converter
Download	ACT4529 Download (PDF)

General Description

ACT4529 is a wide input voltage, high efficiency step-down DC/DC converter that operates in either CV (Constant Output Voltage) mode or CC (Constant Output Current) mode.

This device has QC2.0 built in to provide 5.1V/9.1V/12.1V outputs as requested by attached portable devices.

Besides building in QC2.0 decoding, it also supports Apple, Samsung and BC1.2 devices to charge at full current rate.

Key Features

Qualcomm® Quick Charge™ 2.0 Certified.
40V Input Voltage Surge.
6V-36V Operational Input Voltage.
5.1V/9.1V/12.1V Output with +/-1% Accuracy.
Up to 3.0A Output current.
Constant Current Regulation Limit.
QC2.0 Decoding + USB Auto-Detect + USB-PD Type-C Support.
Support Apple 2.4A, Samsung and BC1.2 Devices.
Hiccup Mode Protection at Output Short.
>90% Efficiency at Full Load.
0.5mA Low Standby Input Current.
5.7V/10.1V/13.5V Output Ove.

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