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The AP63300/AP63301 is a 3A, synchronous buck converter with a wide input voltage range of 3.8V to 32V. The device fully integrates a 75mΩ high-side power MOSFET and a 40mΩ low-side power MOSFET to provide high-efficiency step-down DC-DC conversion.
The AP63300/AP63301 device is easily used by minimizing the external component count due to its adoption of peak current mode control along with its integrated loop compensation network.
The AP63300/AP63301 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. AP63300 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 a TSOT26 package.
5V, 12V, and 24V Distributed Power Bus Supplies
Flat Screen TV Sets and Monitors
Power Tools and Laser Printers
White Goods and Small Home Appliances
FPGA, DSP, and ASIC Supplies
General Purpose Point of Load
VIN 3.8V to 32V
3A Continuous Output Current
0.8V ± 1% Reference Voltage
22μA Low Quiescent Current (Pulse Frequency Modulation)
500kHz Switching Frequency
Supports Pulse Frequency Modulation (PFM)
- Up to 88% Efficiency at 5mA Light Load
Pulse Width Modulation (PWM) Regardless of Output Load
Proprietary Gate Driver Design for Best EMI Reduction