Active-Semi ACT4528
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 Output Current) mode. It also supports Apple 2.4A, Samsung and BC1.2 devices to charge at full current rate. It can provide up to 3.0A output current at 125kHz switching frequency.| Part No. | ACT4528 |
|---|---|
| Datasheet | ACT4528 Download |
| Manufacturer |  Active-Semi |
| Description | 40V/3.0A CV/CC Buck Converter |
| Buy | Stock & Price |
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 BC1.2 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 Over-voltage Protection for 5.1V/9.1V/12.1V Outputs
● Cord Voltage Compensation
● Meet EN55022 Class B Radiated EMI Standard
● 8kV ESD HBM Protection on DP and DM
● SOP-8EP Package
APPLICATIONS
● Car Charger● Cigarette Lighter Adaptor (CLA)
● Rechargeable Portable Device
● CV/CC regulation DC/DC converter
GENERAL DESCRIPTION
ACT4528 has QC2.0 decoding built in to provide 5.1V/9.1V/12.1V outputs as requested by attached portable devices. ACT4528 has accurate output current limits under constant current regulation to meet MFi specification. ACT4528 utilizes adaptive drive technique to achieve good EMI performance while main >90% efficiency at full load for mini size CLA designs.
