AP64501 Overview
Pin Assignments The AP64501 is a 5A, synchronous buck converter with a wide input voltage range of 3.8V to 40V. The device fully integrates a 45mΩ highside power MOSFET and a 20mΩ low-side power MOSFET to provide high-efficiency step-down DC-DC conversion. The AP64501 device is easily used by minimizing the external ponent count due to its adoption of peak current mode control.
AP64501 Key Features
- VIN 3.8V to 40V
- 5A Continuous Output Current
- 0.8V ± 1% Reference Voltage
- 25µA Low Quiescent Current (Pulse Frequency Modulation)
- 570kHz Switching Frequency
- Programmable Soft-Start Time
- Up to 85% Efficiency at 5mA Light Load
- Proprietary Gate Driver Design for Best EMI Reduction
- Frequency Spread Spectrum (FSS) to Reduce EMI
- Low-Dropout (LDO) Mode