Richtek RT8298E

Description

The RT8298E is a synchronous step-down DC/DC converterwith an integrated high side internal power MOSFET anda gate driver for a low side external power MOSFET. Itcan deliver up to 6A output current from a 4.5V to 24Vinput supply. The RT8298E's current mode architectureallows the transient response to be optimized over a widerinput voltage and load range. Cycle-by-cycle current limitprovides protection against shorted outputs and soft-starteliminates input current surge during start-up. TheRT8298E is synchronizable to an external clock withfrequency ranging from 300kHz to 1.5MHz.The RT8298E is available in WDFN-14L 4x3 and SOP-8(Exposed Pad) packages.

Features

4.5V to 24V Input Voltage Range 6A Output Current 45mΩ Internal High Side N-MOSFET Current Mode Control 600kHz Switching Frequency Adjustable Output from 0.8V to 15V Up to 95% Efficiency Internal Compensation Stable with Ceramic Capacitors Synchronous External Clock : 300kHz to 1.5MHz Cycle-by-Cycle Current Limit Input Under Voltage Lockout Output Under Voltage Protection Power Good Indicator Thermal Shutdown Protection RoHS Compliant and Halogen Free

Typical applications

• Flat Panel TVs and Monitors
• Personal Digital Recorders
• Digital Set top Boxes
• Point of Load Regulator in Distributed Power System
• Broadband Communications

More information

• Datasheet
• IC product information