40 V, 3.0 A CC/CV Step-Down DC/DC Converter with QC 2.0

    Key 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

    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.

    Typical Applications

      • Car Chargers
      • Cigarette Lighter Adapters (CLAs)
      • Rechargeable Portable Devices
      • CV/CC Regulation DC/DC Converters
    Topology Step-Down
    Input Voltage(V) 6 to 36
    Max Output Current(A) 3.0
    Frequency(kHz) 125
    ActiveCharge™ with Qualcomm QC 2.0 Yes
    AEC-Q100 No
    Cable Compensation Yes
    Sensorless CC Control Yes
    Package Type SOP-8EP
    RoHS Yes
    Lead Free Yes
    Halogen Free Yes
    ITAR Restricted No
    ECCN EAR99