Diodes Incorporated AP62300

Description

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 lowside 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.

Features

• VIN Range: 4.2V -18V
• Output Voltage range: 0.8V to 7V
• 3A Continuous Output Current
• 0.8V ± 1% Reference Voltage (TA =+25°C)
• 155µA Low Quiescent Current
• 750kHz Switching Frequency
• 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
• Thermal Shutdown
• Totally Lead-Free & Fully RoHS Compliant
• Halogen and Antimony Free. “Green” Device

Typical applications

• Network Systems
• Flat Screen TV Sets and Monitors, Set Top Boxes, Consumer Electronics