TPS54232 Series

3.5-V to 28-V input, 2-A step-down converter with eco-mode

Catalog

3.5-V to 28-V input, 2-A step-down converter with eco-mode

Part	Voltage - Output (Max) [Max]	Supplier Device Package	Current - Output	Number of Outputs	Output Type	Package / Case	Package / Case [y]	Package / Case [x]	Output Configuration	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Voltage - Input (Max) [Max]	Function	Frequency - Switching	Topology	Voltage - Output (Min/Fixed)	Voltage - Input (Min) [Min]	Regulator Topology	Board Type	Supplied Contents	Voltage - Input [Min]	Voltage - Input [Max]	Main Purpose	Voltage - Output	Utilized IC / Part	Outputs and Type	Outputs and Type
Texas Instruments TPS54232D	25 V	8-SOIC	2 A	1	Adjustable	8-SOIC	3.9 mm	0.154 in	Positive	150 °C	-40 °C	Surface Mount	28 V	Step-Down	1 MHz	Buck	0.8 V	3.5 V
Texas Instruments TPS54232EVM-415			2 A												1 MHz				Buck	Fully Populated	Board(s)	5 V	15 V	DC/DC Step Down	2.5 V	TPS54232	Non-Isolated	1
Texas Instruments TPS54232DR	25 V	8-SOIC	2 A	1	Adjustable	8-SOIC	3.9 mm	0.154 in	Positive	150 °C	-40 °C	Surface Mount	28 V	Step-Down	1 MHz	Buck	0.8 V	3.5 V

Catalog

3.5-V to 28-V input, 2-A step-down converter with eco-mode

Key Features

• 3.5-V to 28-V Input Voltage RangeAdjustable Output Voltage Down to 0.8 VIntegrated 80-mΩ High-Side MOSFET Supportsup to 2-A Continuous Output CurrentHigh Efficiency at Light Loads with a PulseSkipping Eco-ModeFixed 1-MHz Switching FrequencyTypical 1-µA Shutdown Quiescent CurrentAdjustable Slow-Start Limits Inrush CurrentsProgrammable UVLO ThresholdOvervoltage Transient ProtectionCycle-by-Cycle Current Limit, Frequency FoldBack and Thermal Shutdown ProtectionAvailable in 8-Pin SOIC PackageSupported by WEBENCH Software Tool(http://www.ti.com/lsds/ti/analog/webench/overview.page)3.5-V to 28-V Input Voltage RangeAdjustable Output Voltage Down to 0.8 VIntegrated 80-mΩ High-Side MOSFET Supportsup to 2-A Continuous Output CurrentHigh Efficiency at Light Loads with a PulseSkipping Eco-ModeFixed 1-MHz Switching FrequencyTypical 1-µA Shutdown Quiescent CurrentAdjustable Slow-Start Limits Inrush CurrentsProgrammable UVLO ThresholdOvervoltage Transient ProtectionCycle-by-Cycle Current Limit, Frequency FoldBack and Thermal Shutdown ProtectionAvailable in 8-Pin SOIC PackageSupported by WEBENCH Software Tool(http://www.ti.com/lsds/ti/analog/webench/overview.page)

Description

The TPS54232 is a 28-V, nonsynchronous 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 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 TPS54232 is available in an 8-pin SOIC package. The TPS54232 is a 28-V, nonsynchronous 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 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 TPS54232 is available in an 8-pin SOIC package.