Click to expand full text
AP65552
5A, 18V, 650kHz ADAPTIVE CCM/COT STEP-DOWN CONVERTER
Description
The AP65552 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 and monitors.
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 both low equivalent series resistance (ESR) Output Capacitors, such as SP-CAP or POSCAP and ultra-low ESR ceramic capacitors.
Pin Assignments
( Top View )
EN 1
8
FB 2
7
VREG5 3
6
VIN BS SW
The AP65552 features programmable soft-start, UVLO, OTP and OCP to protect the circuit.
This IC is available in SO-8EP package.