RFMW

Status: Standard | Data Sheet: pdf link image   | RoHS Compliance: Rohs Compliant
Overview

Qorvo’s ACT4529 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.

ACT4529 has built-in QC2.0 decoding to provide 5.1 / 9.1 / 12.1 V outputs as requested by attached portable devices. It also supports Apple, Samsung and BC1.2 devices to charge at full current rate. The product has an interface for USB-PD control via a tri-state digital pin. Vout is 5.1 V if this pin is floating, Vout is 9.1 V when this pin’s voltage is less than 0.8 V and Vout is 12.1 V when this pin’s voltage is more than 2.0 V.

The product has accurate output current limits under constant current regulation to meet MFi specification. It provides up to 3.0 A output current at 125 kHz switching frequency. ACT4529 utilizes an adaptive drive technique to achieve good EMI performance while maintaining greater than 90% efficiency at full load for mini-size CLA designs. ACT4529 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.

ACT4529 is available in a SOP-8EP package and requires very few external components for operation.

Key Features
  • Quick Charge 2.0 certified by Qualcomm® and UL
  • UL Certificate No. 4787083099-1
  • Passes Apple MFi test
  • 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 + USB auto-detect + USB-PD Type-C support
  • Supports Apple 2.4 A, Samsung and BC1.2
  • 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
Typical Applications
  • Car Chargers
  • Cigarette Lighter Adapters (CLAs)
  • Rechargeable Portable Devices
  • CV/CC Regulation DC/DC Converters
Part Number:
ACT4529YH-T0010
Manufacturer:
Qorvo
Topology:
Step-Down
Input Voltage:
6 - 36 V
Max Output Current:
3 A
Frequency:
125 kHz
Features:
ActiveCharge™ with Qualcomm QC 2.0, Cable Compensation, Sensorless CC Control
Package Type:
SOP-8EP

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Product Specifications For ACT4529YH-T0010 DC-DC Non-Sync Step Down Converter
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Tariff Notice
 Product may be included on Section 301 Tariff List and subject to applicable tariff charges.