AP63300数据手册开发板套件编程器的评估板-DC/DC与AC/DC（离线）SMPS规格书PDF

描述 Description

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 featuresFrequency 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.

特性 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)
- AP63300- Up to 88% Efficiency at 5mA Light Load•Pulse Width Modulation (PWM) Regardless of Output Load
- AP63301•Proprietary Gate Driver Design for Best EMI Reduction
•Frequency Spread Spectrum (FSS) to Reduce EMI
- AP63300•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•Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
•Halogen and Antimony Free. “Green” Device (Note 3)

应用 Application

• 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