ACT4751 Description
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.
ACT4751 Key Features
- Certified USB Fast Charger, Reference Designs
- Qualm® Certified, Quick Charger Designs
- 4.5 V to 40 V Operational Input Voltage
- Programmable Output Voltage by I2C
- Programmable Output Current Limit
- 450 kHz to 2.25 MHz Fixed-Frequency Current-Mode
- 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