4.2V to 18V input, 2A low IQ synchronous step-down converter.
AP62200
AP62200.pdf
AP62200.pdf
No.13522
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)
AP62200 and AP62201
• 0.763V ± 1% Reference Voltage (TA = +25°C)
AP62200T
• 135μA Low Quiescent Current (Pulse Frequency Modulation)
• 750kHz Switching Frequency (VIN = 12V, VOUT = 5V)
• Up to 84% 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
DESCRIPTION
The AP62200/AP62201/AP62200T 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/AP62201/AP62200T 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/AP62201/AP62200T 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.
AP62200/AP62201 is available in SOT563 (Standard) and TSOT26 (Standard) packages. AP62200T is available in a TSOT26 (Standard) package.
APPLICATION CIRCUIT
PIN CONFIGUTION
