Description
●The TPS54231 device is a 2-V, 2-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. A resistor divider programs the hysteresis
●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 2 A Continuous Output Current
●• High Efficiency at Light Loads with a Pulse Skipping Eco-mode™
●• Fixed 570-kHz Switching Frequency
●• Typical 1-μA Shutdown Quiescent Current
●• Adjustable Slow-Start Limits Inrush Currents
●• Programmable UVLO Threshold
●• Overvoltage Transient Protection
●• Cycle-by-Cycle Current Limit, Frequency Fold Back and Thermal Shutdown Protection
●• Available in Easy-to-Use SOIC8 Package
●• Supported by WEBENCH® Software Tool
●2 Applications
●• Consumer Applications such as Set-Top Boxes, CPE Equipment, LCD Displays, Peripherals, and Battery Chargers
●• Industrial and Car Audio Power Supplies
●• 5-V, 12-V and 24-V Distributed Power Systems
