AP62300TWU-7

The AP62300/AP62301/AP62300T is a 3A, synchronous buck converter with a wide input voltage range of 4.2V to 18V. The device fully integrates a 75mΩ high-side power MOSFET and a 45mΩ low-side power MOSFET to provide high-efficiency step-down DC-DC conversion. The AP62300/AP62301/AP62300T device is easily used by minimizing the external component count due to its adoption of Constant On-Time (COT) control to achieve fast transient response, easy loop stabilization, and low output-voltage ripple. The AP62300/AP62301/AP62300T 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 highfrequency radiated EMI noise caused by MOSFET switching. The AP62300/AP62301 is available in SOT563 (Standard) and TSOT26 (Standard) packages. The AP62300T is available in a TSOT26 (Standard) package.

Applications

• 5V and 12V distributed power bus supplies
• Flat screen TV sets and monitors
• White goods and small home appliances
• FPGA, DSP, and ASIC supplies
• Home audios
• Network systems
• Gaming consoles
• Consumer electronics General purpose point of loads

Key features

• VIN: 4.2V to 18V
• Output Voltage (VOUT): 0.8V to 7V
• 3A Continuous Output Current
• 0.8V ± 1% Reference Voltage (Ta = +25°C) AP62300 and AP62301
• 0.763V ± 1% Reference Voltage (TA = +25°C) AP62300T
• 155μA Low Quiescent Current (Pulse Frequency Modulation)
• 750kHz Switching Frequency (VIN = 12V, VOUT = 5V)
• Up to 83% Efficiency at 5mA Light Load
• Proprietary Gate Driver Design for Best EMI Reduction
• Protection Circuitry: Undervoltage Lockout (UVLO), Cycle-by-Cycle Valley Current Limit, Output Undervoltage Protection, Thermal Shutdown
• Totally Lead-Free & Fully RoHS Compliant
• Halogen and Antimony Free. “Green” Device