AP62200

Description

The AP62200 is a 2A, synchronous buck converter with a wide input voltage range of 4.2V to 18V. The device fully integrates a 90mΩ high-side power MOSFET and a 65mΩ low-side power MOSFET to provide high-efficiency step-down DC/DC conversion.

The AP62200 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 AP62200 design is optimized for Electromagnetic Interference (EMI) reduction. It has a proprietary gate driver scheme to resist switching node ringing without sacrificing MOSFET turn-on and turnoff times, which reduces high-frequency radiated EMI noise caused by MOSFET switching.

The device is available in a SOT563 or TSOT26 package.

Application

• Flat Screen TV Sets and Monitors
• Set Top Boxes
• Consumer Electronics
• Network Systems
• General Purpose Point of Load

Features

• VIN: 4.2V to 18V
• Output Voltage (VOUT): 0.8V to 7V
• 2A Continuous Output Current
• 0.8V ± 1% Reference Voltage (TA = +25°C)
• 135μA Low Quiescent Current
• 740kHz Switching Frequency (VIN = 12V, VOUT = 5V)
• Up to 84% Efficiency at 5mA Light Load
• Proprietary Gate Driver Design for Best EMI Reduction
• Protection Circuitry

o Undervoltage Lockout (UVLO)

o Cycle-by-Cycle Valley Current Limit

o Thermal Shutdown

• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)