RT8253B Datasheet 1.2MHz Synchronous Step-Down Converter

Manufacturer: Richtek

RT8253B 1.2mhz synchronous step-down converter by Richtek - Datasheet Preview

Datasheet Details

Part number	RT8253B
Manufacturer	Richtek
File Size	272.03 KB
Description	1.2MHz Synchronous Step-Down Converter
Download	RT8253B Download (PDF)

General Description

The RT8253B is a high-efficiency, monolithic synchronous step-down DC/DC converter that can deliver up to 3A output current from a 4.5V to 23V input supply.

The RT8253B's current mode architecture and external compensation allow the transient response to be optimized over a wide range of loads and output capacitors.

Cycle-by-cycle current limit provides protection against shorted outputs and soft-start eliminates input current surge during start-up.

Overview

RT8253B 3A, 23V, 1.2MHz Synchronous Step-Down Converter General.

Key Features

±1.5% High Accuracy Feedback Voltage 4.5V to 23V Input Voltage Range 3A Output Current Integrated N-MOSFET Switches Current Mode Control Fixed Frequency Operation : 1.2MHz Adjustable Output from 0.8V to 20V Up to 95% Efficiency Programmable Soft-Start Stable with Low-ESR Ceramic Output Capacitors Cycle-by-Cycle Over Current Protection Input Under Voltage Lockout Output Under Voltage Protection Thermal Shutdown Protection RoHS Compliant and Halogen Free Ordering Information RT8253B Package Type.

More Datasheets from Richtek

Part Number	Description
RT8253A	340kHz Synchronous Step-Down Converter
RT8250	340kHz Synchronous Step-Down Converter
RT8250N	340kHz Synchronous Step-Down Converter
RT8251	570kHz Step-Down Converter
RT8256	400kHz Step-Down Converter
RT8258	700kHz Step-Down Converter
RT8259	1.4MHz Step-Down Converter
RT8202	Single Synchronous Buck Controller
RT8202A	Single Synchronous Buck Controller
RT8202B	Single Synchronous Buck Controller