AP62250

AP62250 4.2V TO 18V INPUT, 2.5A LOW IQ SYNCHRONOUS BUCK CONVERTER Description The AP62250 is a 2.5A, synchronous buck converter with a wide input voltage range of 4.2V to 18V. The device fully integrates a 75mΩ highside power MOSFET and a 45mΩ low-side power MOSFET to provide high-efficiency step-down DC-DC conversion. Pin Assignments (Top View) The AP62250 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 AP62250 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. AP62250 is available in SOT563 (Standard) and TSOT26 (Standard) packages. (Top View) GND 1 VIN 1 6 FB SW 2 5 EN SW 2 GND 3 4 BST SOT563 (Standard) VIN 3 TSOT26 (Standard) 6 BST 5 EN 4 FB Features  VIN: 4.2V to 18V  Output Voltage (VOUT): 0.8V to 7V  2.5A Continuous Output Current  0.8V ± 1% Reference Voltage (TA = +25°C)  155μA Low Quiescent Current (Pulse Frequency Modulation)  1.3MHz Switching Frequency (VIN = 12V, VOUT = 5V)  Proprietary Gate Driver Design for Best EMI Reduction  Protection Circuitry  Undervoltage Lockout (UVLO)  Cycle-by-Cycle Valley Current Limit  Thermal Shutdown  Totally Lead...