RT6256C - Richtek

RT6256C 23V Synchronous Step-Down Converter

The RT6256B/C is an advanced constant on-time (ACOT®) mode synchronous buck converter. The main control loop of the RT6256B/C using an advanced constant on-time (ACOT®) mode control which provides a very fast transient response. The RT6256B operates from 4.5V to 23V input voltage and RT6256C operates from 5.1V to 23V. Applications  Industrial and Commercia.

Features

 4.5V to 23V (RT6256B) and 5.1V to 23V (RT6256C) Input Voltage Range 6A Output Current
 ACOT® Mode Performs Fast Transient Response
 ACOT® Architecture to Enable All MLCC Output Capacitor Usage
 Fixed 750kHz (RT6256C) and 500kHz (RT6256B) Switching Frequency
 High Efficient Internal Power MOSFET Switch- 30mΩ (High-Side) and 15mΩ (Low-Side)
 Fixed 3.3V (RT6256B) and 5V (RT6256C) LDOs Output Supply 100mA
 Pre-biased Soft-Start
 Cycle-by-Cycle Over-Current Protection
 Input Under-Voltage Lockout
 Thermal Shutdown Protection
 Output Over-/Under-Voltage Protection
 Ultrasonic Mode (USM).