Description
ACT4528 40V/3.0A CV/CC Buck Converter Featuring QC2.0 and USB Auto-Detect .
ACT4528 is a wide input voltage, high efficiency step-down DC/DC converter that operates in either CV (Constant Output Voltage) mode or CC (Constant O.
Features
* 40V Input Voltage Surge
* 4.5V-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
* Support Apple 2.4A, Samsung and BC1
Applications
* Car Charger
* Cigarette Lighter Adaptor (CLA)
* Rechargeable Portable Device
* CV/CC regulation DC/DC converter
TYPICAL APPLICATION CIRCUIT
4.5V to 40V
C1
C2
47μF 10μF
C3
CSN HSB
22nF
Rcs 25mΩ
IN
SW
ACT4528 CSP
L1 47μH
GND DP DM D1
C4 C5
C6
22μF 220μ