RT7277 - Synchronous Step-Down Converter

Description

The RT7277 is a synchronous step-down DC/DC converter with Advanced Constant On-Time (ACOTTM) mode control.

It achieves high power density to deliver up to 3A output current from a 4.5V to 18V input supply.

Features

z z z z z z z z z z z z z z ACOTTM Mode Enables Fast Transient Response 4.5V to 18V Input Voltage Range 3A Output Current 60mΩ Internal Low Site N-MOSFET Advanced Constant On-Time Control Support All Ceramic Capacitors Up to 95% Efficiency 700kHz Switching Frequency Adjustable Output Voltage from 0.765V to 8V Adjustable Soft-Start Cycle-by-Cycle Current Limit Input Under Voltage Lockout Thermal Shutdown RoHS Compliant and Halogen Free.

Richtek

📥 Download Datasheet

Datasheet Details

Part number	RT7277
Manufacturer	Richtek
File Size	292.81 KB
Description	Synchronous Step-Down Converter
Datasheet	RT7277 Datasheet
Additional preview pages of the RT7277 datasheet.

📁 Similar Datasheet

Other Datasheets by Richtek

RT7270 - Synchronous Step-Down Converter
RT7271A - Synchronous Step-Down Converter
RT7272A - Synchronous Step-Down Converter
RT7272B - Synchronous Step-Down Converter
RT7273 - Synchronous Step-Down Converter
RT7274 - Synchronous Step-Down Converter
RT7275 - Synchronous Step-Down Converter
RT7276 - Synchronous Step-Down Converter

Full PDF Text Transcription

Click to expand full text

® RT7277 3A, 18V, 700kHz ACOTTM Synchronous Step-Down Converter General Description The RT7277 is a synchronous step-down DC/DC converter with Advanced Constant On-Time (ACOTTM) mode control. It achieves high power density to deliver up to 3A output current from a 4.5V to 18V input supply. The proprietary ACOTTM mode offers an optimal transient response over a wide range of loads and all kinds of ceramic capacitors, which allows the device to adopt very low ESR output capacitors for ensuring performance stabilization. In addition, RT7277 keeps an excellent constant switching frequency under line and load variation and the integrated synchronous power switches with the ACOTTM mode operation provides high efficiency in whole output current load range.

Published: Sep 20, 2013 |