TPS54233 Series

3.5 to 28V Input, 2A, 300kHz Step-Down Converter with Eco-mode

Catalog(2 parts)

Part	Operating Temperature▲▼	Operating Temperature▲▼	Package / Case▲▼	Package / Case	Number of Outputs▲▼	Synchronous Rectifier▲▼	Voltage - Input (Min)▲▼	Supplier Device Package	Function	Topology	Voltage - Output (Min/Fixed)▲▼	Output Configuration	Current - Output▲▼	Output Type	Mounting Type	Frequency - Switching▲▼	Voltage - Input (Max)▲▼	Voltage - Output (Max)▲▼	Grade	Qualification
Texas Instruments TPS54233DRG4 Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 2A 8-SOIC (0.154", 3.90mm Width)	150 °C	-40 °C	0.003899999894201755 m	8-SOIC	1 ul		3.5 V	8-SOIC	Step-Down	Buck	0.800000011920929 V	Positive	2 A	Adjustable	Surface Mount	300000 Hz	28 V	25 V
Texas Instruments TPS54233QDRQ1 Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 2A 8-SOIC (0.154", 3.90mm Width)	125 °C	-40 °C	0.003899999894201755 m	8-SOIC	1 ul		3.5 V	8-SOIC	Step-Down	Buck	0.800000011920929 V	Positive	2 A	Adjustable	Surface Mount	300000 Hz	28 V	25 V	Automotive	AEC-Q100

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 2A Continuous Output CurrentHigh Efficiency at Light Loads with a PulseSkipping Eco-mode™Fixed 300 kHz 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 Easy-to-Use SOIC8 PackageSupported by WEBENCH®Software Tool(www.TI.com/WEBENCH)APPLICATIONSConsumer Applications such as Set-Top Boxes,CPE Equipment, LCD Displays, Peripherals, andBattery ChargersIndustrial and Car Audio Power Supplies5V, 12V and 24V Distributed Power SystemsWEBENCH Is a trademark of Texas InstrumentsAll other trademarks are the property of their respective owners3.5 V to 28 V Input Voltage RangeAdjustable Output Voltage Down to 0.8 VIntegrated 80 mΩ High Side MOSFET Supportsup to 2A Continuous Output CurrentHigh Efficiency at Light Loads with a PulseSkipping Eco-mode™Fixed 300 kHz 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 Easy-to-Use SOIC8 PackageSupported by WEBENCH®Software Tool(www.TI.com/WEBENCH)APPLICATIONSConsumer Applications such as Set-Top Boxes,CPE Equipment, LCD Displays, Peripherals, andBattery ChargersIndustrial and Car Audio Power Supplies5V, 12V and 24V Distributed Power SystemsWEBENCH Is a trademark of Texas InstrumentsAll other trademarks are the property of their respective owners

Description

The TPS54233 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 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 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 TPS54233 is available in an 8-pin SOIC package that has been internally optimized to improve thermal performance. The TPS54233 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 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 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 TPS54233 is available in an 8-pin SOIC package that has been internally optimized to improve thermal performance.