RT7257B Datasheet (Richtek) - Synchronous Step-Down Converter

RT7257B, Synchronous Step-Down Converter

The RT7257B is a high efficiency, monolithic synchronous step-down DC/DC converter that can deliver up to 3A output current from a 4.5V to 18V input supply.

The RT7257B's current mode architecture and external compensation allow the transient response to be optimized over a wide input voltage range

RT7257B Features

* ±1.5% High Accuracy Reference Voltage 4.5V to 18V Input Voltage Range 3A Output Current Integrated N-MOSFET Switches Current Mode Control Fixed Frequency Operation : 1.2MHz Output Adjustable from 0.8V to 12V Up to 95% Efficiency Programmable Soft-Start Stable with Low ESR Ceramic Output Capacitors C