AP63300WU-7 Description

A 3A, synchronous buck converter with a large input voltage range of 3.8V to 32V is the AP63300/AP63301. To enable high-efficiency step-down DC-DC conversion, the device fully incorporates a 40m low-side power MOSFET and a 75m high-side power MOSFET. The AP63300/AP63301 device's adoption of peak current mode control and integrated loop compensation network make it simple to operate while limiting the number of external components.

The AP63300/AP63301 design is enhanced for the mitigation of electromagnetic interference (EMI). By preventing switching node ringing without sacrificing MOSFET turn-on and turn-off times, the device lowers high-frequency radiated EMI noise brought on by MOSFET switching. Additionally, the AP63300 has frequency spread spectrum (FSS) with a switching frequency jitter of 6%, which lessens EMI by preventing energy from being released from a source to remain in a certain frequency for an extended length of time.

AP63300WU-7 Features

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

Frequency Spread Spectrum (FSS) to Reduce EMI

Low-Dropout (LDO) Mode

Precision Enable Threshold to Adjust UVLO

Protection Circuitry

Undervoltage Lockout (UVLO)

Output Overvoltage Protection (OVP)

Cycle-by-Cycle Peak Current Limit

Thermal Shutdown

AP63300WU-7 Applications

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

Home Audio

Network Systems

Gaming Consoles

Consumer Electronics

General Purpose Point of Load