Qorvo ACT4751
The ACT4751 is a programmable DC-to-DC buck converter with bias supply rails. This synchronous step-down voltage regulator supports a wide input voltage of 4.5 V to 40 V and integrates both the high side and low side MOSFETS. These 50mΩ RDSON transistors enable high efficiency by reducing power losses.| Part No. | ACT4751 |
|---|---|
| Datasheet | ACT4751 Download |
| Manufacturer |  Qorvo |
| Description | USB Fast Charger |
| Buy | Stock & Price |
FEATURES
● Certified USB Fast Charger, Reference Designs● Qualcomm® Certified, Quick Charger Designs
● 4.5 V to 40 V Operational Input Voltage
● Programmable Output Voltage by I2C 3 V to 24 V in 12.5 mV Step
● Programmable Output Current Limit 4 A in 256 Step Resolution
● 450 kHz to 2.25 MHz Fixed-Frequency Current-Mode Control with External Clock Sync, 100% Duty Operation, Stable with MLCC
● Out of AM Radio / Spread-Spectrum Operation
● 50 mΩ Integrated High-Side / Low-Side FETs
● 5 V / 350 mA Bias Buck Converter
● 20 mA AUX LDO, Programmable Output Voltage
● I2C Interface, Fast-mode Plus (Fm+, 1 MHz) with Configurable Address
● Protections: UVLO, OVP, UVP (Hiccup/Latch-off), OCP, TSD
● Thermally Enhanced 5 mm × 5 mm QFN Package
APPLICATIONS
● USB Fast Charger (PD 3.0 PPS)● Quick Charge 4, Quick Charge 4+, Quick Charge 3.0
● Industrial Power Supply
● Infrastructure Power Supply
● High Power LED Lighting GENERIC
DESCRIPTION
The ACT4751 main buck converter can be dynamically programmed to an output voltage between 3 V and 24 V in 12.5 mV steps via the I2C or analog feedback.
