The TPS54332 is a 28-V, 3.5-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. A resistor divider programs the hysteresis of the input undervoltage lockout. An overvoltage transient protection circuit limits voltage 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 overload condition. The TPS54332 is available in an 8-pin SOIC PowerPAD™ package.
● 3.5-V to 28-V Input Voltage Range
● Adjustable Output Voltage Down to 0.8 V
● Integrated 80-mΩ High-Side MOSFET Supports
●up to 3.5-A Continuous Output Current
● High Efficiency at Light Loads With a Pulse-
●Skipping Eco-Mode™
● Fixed 1-MHz 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 Foldback
●and Thermal Shutdown Protection
● Available in Thermally Enhanced 8-Pin SOIC
●PowerPAD™ Package
● Supported by WEBENCH™ Tool
●(http://www.ti.com/lsds/ti/analog/webench/overview.page)
● 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
●All other trademarks are the property of their respective owners
