RT2853A Datasheet - Richtek

RT2853A, Synchronous Step-Down Converter

RT2853A/B 3A, 18V, 650kHz, ACOT® Synchronous Step-Down Converter 1 General .
The RT2853A/B are high-performance 650kHz 3A step- down regulators with internal power switches and synchronous rectifiers.

Features

* Fast Transient Response
* Steady 650kHz Switching Frequency
* Enhanced Efficiency at Light Load (RT2853A)
* Advanced Constant On-Time (ACOT®) Control
* Optimized for Ceramic Output Capacitors
* 4.5V to 18V Input Voltage Range
* Internal 110m Switch and 30m Synchronous

Applications

* especially for low output voltages and low duty cycles. Cycle-by- cycle current limit, input undervoltage lock-out, externally- adjustable soft-start, output under- and overvoltage protection, and thermal shutdown provide safe and smooth operation in all operating conditions. The RT2853A and RT2853

RT2853A-Richtek.pdf