AP61203

AP61200/AP61201/AP61202/AP61203 2.3V TO 5.5V INPUT, 2A LOW IQ SYNCHRONOUS BUCK CONVERTER Description The DIODES™ AP61200 / DIODES™ AP61201 / DIODES™ AP61202 / DIODES™ AP61203 is a 2A, synchronous buck converter with a wide input voltage range of 2.3V to 5.5V. The device fully integrates a 110mΩ high-side power MOSFET and an 80mΩ low-side power MOSFET to provide high-efficiency step-down DC-DC conversion. The AP61200/AP61201/AP61202/AP61203 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. Pin Assignments (Top View) FB 1 6 OUT FB 1 6 PG AP61200 AP61202 GND 2 AP61201 5 EN GND 2 AP61203 5 EN VIN 3 4 SW VIN 3 4 SW SOT563 The device is available in a SOT563 package. Features  VIN: 2.3V to 5.5V  Output Voltage (VOUT): 0.6V to 3.6V  2A Continuous Output Current  0.6V ± 2% Reference Voltage  19μA Low Quiescent Current (Pulse Frequency Modulation)  1.3MHz Switching Frequency (VIN = 5V, VOUT = 1.8V)  Up to 89% Efficiency at 5mA Light Load  Operation Mode Options  Pulse Frequency Modulation: AP61200 and AP61202  Force Pulse Width Modulation: AP61201 and AP61203  Power-Good Indicator  AP61202 and AP61203  Protection Circuitry  Undervoltage Lockout (UVLO)  VIN Overvoltage Protection (OVP)  Peak Current Limit  Valley Current Limit  Thermal Shutdown  Totally Lead-Free & Fully RoHS Compliant (Notes 1 ...