TPS54231D Datasheet

DC/DC Switching Regulators


The TPS54231D is a 28-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 mA 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 of the input under-voltage lockout. An overvoltage transient protection circuit limits voltage overshoots during startup and transient conditions. A cycle by cycle current limit scheme, frequency fold back and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54231 is available in an 8-pin SOIC package that has been internally optimized to improve thermal performance. TPS54231D Features • 3.5V to 28V Input Voltage Range• Adjustable Output Voltage Down to 0.8V• Fixed 570kHz Switching Frequency• Typical 1mA Shutdown Quiescent Current• Adjustable Slow Start Limits Inrush Currents• Programmable UVLO Threshold• Overvoltage Transient Protection• Available in Easy-to-Use SOIC8 Package TPS54231D Applications • Consumer Applications such as Set-Top Boxes, CPE Equipment, LCD Displays, Peripherals, and Battery Chargers• Industrial and Car Audio Power Supplies• 5V, 12V and 24V Distributed Power Systems


[{"Name":"Switching Frequency","Value":"570 kHz "},{"Name":"Output Voltage","Value":"3.3 V "},{"Name":"Output Current","Value":"2 A "},{"Name":"Mounting Style","Value":"SMD/SMT "},{"Name":"Package / Case","Value":"SOIC-8 "},{"Name":"Packaging","Value":"Tube "}]

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