• 3.5-V to 28-V input voltagerange

• Adjustable output voltage down to 0.8 V

• Integrated80-m? high-side MOSFET supports up to 3.5-A continuous output current

• High efficiency at light loads with a pulse-skippingEco-Mode?

• Fixed 1-MHz switchingfrequency

• Typical 1-μA shutdown quiescentcurrent

• Adjustable slow-start limits inrushcurrents

• Programmable UVLO threshold

• Overvoltage transientprotection

• Cycle-by-Cycle current limit, frequency foldback and thermalshutdown protection

• Available in thermally enhanced 8-Pin SOICPowerPAD? package

• Supported byWEBENCH? tool (http://www.ti.com/lsds/ti/analog/webench/overview.page)

All trademarks are the property of their respective owners.

The TPS54332 is a 28-V, 3.5-A non-synchronous buck converter that integrates alow-RDS(on) high-side MOSFET. To increase efficiency at light loads, apulse-skipping Eco-Mode feature is automatically activated. Furthermore, the 1-μA shutdown supplycurrent allows the device to be used in battery-powered applications. Current mode control withinternal slope compensation simplifies the external compensation calculations and reduces componentcount while allowing the use of ceramic output capacitors. A resistor divider programs thehysteresis of the input undervoltage lockout. An overvoltage transient protection circuit limitsvoltage overshoots during start-up and transient conditions. A cycle-by-cycle current limit scheme,frequency foldback and thermal shutdown protect the device and the load in the event of an overloadcondition. The TPS54332 is available in an 8-pin SOIC PowerPAD?package.