AP65251

ADVANCED INFORMATION AP65251 2A, 16V, 500KHz ACOT SYNCHRONOUS DC/DC BUCK CONVERTER Description The AP65251 is an adaptive constant on-time mode synchronous buck converter providing high efficiency, excellent transient response and high DC output accuracy for low-voltage regulation in digital TVs, set-top-boxes, and network systems. Pin Assignments Top View The constant-on-time control scheme handles wide input/output voltage ratios and provides low external component count. The internal proprietary circuit enables the device to adopt ultra-low ESR ceramic capacitors. The adaptive on-time control supports seamless transition between continuous conduction mode (CCM) at higher load conditions and discontinuous conduction mode (DCM) at lighter load conditions. DCM allows AP65251 to maintain high efficiency at light load conditions. The AP65251 also features UVLO, OTP, and OCP to protect the circuit. BST 1 GND 2 FB 3 TSOT26 6 SW 5 VIN 4 EN This IC is available in TSOT26 package. ...