描述 Description

Qorvo's ACT4526 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.
ACT4526 has built-in QC2.0 decoding to provide 5.1 / 9.1 / 12.1 V outputs as requested by attached portable devices. The product has accurate output current limits under constant current regulation to meet the MFi specification.
The product provides up to 3.0 A output current at 125 kHz switching frequency. ACT4526 utilizes an adaptive drive technique to achieve good EMI performance while maintaining greater than 90% efficiency at full load for mini-size CLA designs. ACT4526 also has output short circuit protection with hiccup mode. The average output current is reduced to below 6 mA when output is shorted to ground. Other features include output over-voltage protection and thermal shutdown.
ACT4526 is available in a SOP-8EP package and requires very few external devices for operation.

特性 Features

? Quick charge 2.0 certified by Qualcomm?
? UL Certificate No. 4787034072-1
? 40 V input voltage surge
? 4.5 to 36 V operational input voltage
? 5.1 / 9.1 / 12.1 V Output with +/- 1% accuracy
? Up to 3.0 A output current
? Constant current regulation limit
? QC2.0 decoding
? Hiccup mode protection at output short
? > 90% efficiency at full load
? 0.5 mA low standby input current
? 5.7 / 10.1 / 13.5 V output over-voltage protection for 5.1 / 9.1 / 12.1 V outputs
? Cord voltage compensation
? Meets EN55022 Class B radiated EMI standard
? 8 kV ESD HBM protection on DP and DM

應用 Application

? Car Chargers
? Cigarette Lighter Adapters (CLAs)
? Rechargeable Portable Devices
? CV/CC Regulation DC/DC Converters