TPS54531DDAR Description

The TPS54531DDAR is a 28-V, 5-A non-synchronous buck converter that integrates a low RDS(on) high-side MOSFET. To increase efficiency at light loads, a pulse skipping Eco-mode feature is automatically activated. Furthermore, the 1-μA shutdown supply current allows the device to be used in battery-powered applications. Current mode control with internal slope compensation simplifies the external compensation calculations and reduces component count while allowing the use of ceramic output capacitors.

TPS54531DDAR Features

• 3.5 to 28-V Input Voltage Range

• Adjustable Output Voltage Down to 0.8 V

• Integrated 80-mΩ High-Side MOSFET Supports up to 5-A Continuous Output Current

• High Efficiency at Light Loads with a Pulse Skipping Eco-mode?

• Fixed 570kHz Switching Frequency

• Typical 1μA Shutdown Quiescent Current

TPS54531DDAR Applications

• Set-Top Boxes

• CPE Equipment

• LCD Displays

• Peripherals

• Battery Chargers

• Industrial and Car Audio Power Supplies

• 5-V, 12-V, and 24-V Distributed Power Systems