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The AP64100 is a 1A, synchronous buck converter with a wide input voltage range of 3.8V to 40V. The device fully integrates a 150mΩ high-side power MOSFET and an 80mΩ low-side power MOSFET to provide high-efficiency step-down DC-DC conversion.
The AP64100 device is easily used by minimizing the external component count due to its adoption of peak current mode control.
The AP64100 design is optimized for Electromagnetic Interference (EMI) reduction. The device has a proprietary gate driver scheme to resist switching node ringing without sacrificing MOSFET turn-on and turn-off times, which reduces high-frequency radiated EMI noise caused by MOSFET switching. The AP64100 also features Frequency Spread Spectrum (FSS) with a switching frequency jitter of ±6%, which reduces EMI by not allowing emitted energy to stay in any one frequency for a significant period of time.
The device is available in an SO-8EP (Standard) package.
Distributed Power Bus Supplies
Power Tools and Laser Printers
White Goods and Small Home Appliances
General Purpose Point of Load
VIN: 3.8V to 40V
Output Voltage (VOUT): 0.8V to VIN
1A Continuous Output Current
8V ± 1% Reference Voltage
25µA Low Quiescent Current (Pulse Frequency Modulation)
Adjustable Switching Frequency: 100kHz to 2.2MHz
External Clock Synchronization: 100kHz to 2.2MHz
Up to 88% Efficiency at 5mA Light Load
Proprietary Gate Driver Design for Best EMI Reduction