ACT4526

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

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.

中止的
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Product Data Sheet修订版 C – 2019-11
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主要特性

  • 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

典型应用

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

参数

拓扑
Step-Down
Min Input Voltage (V)
6
最大输入电压 (V)
36
最大输出电流 (A)
3
频率 (kHz)
125
集成 Qualcomm QC 2.0 的 ActiveCharge™
Yes
AEC-Q100
No
线损补偿
Yes
无传感器恒流控制
Yes
封装类型
SOP-8EP
RoHS
Yes
ECCN
EAR99

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