TPS54233-Q1 Series

Automotive 3.5V to 28V, 300kHz Fixed Frequency 2A Buck Converter with Eco-Mode™

Catalog

Automotive 3.5V to 28V, 300kHz Fixed Frequency 2A Buck Converter with Eco-Mode™

Part	Operating Temperature [Max]	Operating Temperature [Min]	Function	Voltage - Output (Min/Fixed)	Package / Case	Package / Case [y]	Package / Case [x]	Voltage - Input (Min) [Min]	Voltage - Input (Max) [Max]	Voltage - Output (Max) [Max]	Mounting Type	Supplier Device Package	Number of Outputs	Current - Output	Frequency - Switching	Topology	Output Configuration	Output Type	Qualification	Grade
Texas Instruments TPS54233DRG4	150 °C	-40 °C	Step-Down	0.8 V	8-SOIC	3.9 mm	0.154 in	3.5 V	28 V	25 V	Surface Mount	8-SOIC	1	2 A	300 kHz	Buck	Positive	Adjustable
Texas Instruments TPS54233QDRQ1	125 °C	-40 °C	Step-Down	0.8 V	8-SOIC	3.9 mm	0.154 in	3.5 V	28 V	25 V	Surface Mount	8-SOIC	1	2 A	300 kHz	Buck	Positive	Adjustable	AEC-Q100	Automotive
Texas Instruments TPS54233DR	150 °C	-40 °C	Step-Down	0.8 V	8-SOIC	3.9 mm	0.154 in	3.5 V	28 V	25 V	Surface Mount	8-SOIC	1	2 A	300 kHz	Buck	Positive	Adjustable

Catalog

Automotive 3.5V to 28V, 300kHz Fixed Frequency 2A Buck Converter with Eco-Mode™

Key Features

• Qualified for Automotive ApplicationsAEC-Q100 Test Guidance With the Following Results:Device Temperature Grade1: –40°C to +125°CAmbient Operating Temperature RangeDevice HBM ESD Classification Level H2Device CDM ESD Classification Level C3B3.5 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 Pulse-Skipping Eco-modeFixed 300-kHz Switching FrequencyTypical 1 µA Shutdown Quiescent CurrentAdjustable Slow Start Limits Inrush CurrentsProgrammable UVLO ThresholdOvervoltage Transient ProtectionCycle by Cycle Current Limit, Frequency Fold Back andThermal Shutdown ProtectionAvailable in the SOIC8 PackageSupported by SwitcherPro Software Tool(http://focus.ti.com/docs/toolsw/folders/print/switcherpro.html)Qualified for Automotive ApplicationsAEC-Q100 Test Guidance With the Following Results:Device Temperature Grade1: –40°C to +125°CAmbient Operating Temperature RangeDevice HBM ESD Classification Level H2Device CDM ESD Classification Level C3B3.5 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 Pulse-Skipping Eco-modeFixed 300-kHz Switching FrequencyTypical 1 µA Shutdown Quiescent CurrentAdjustable Slow Start Limits Inrush CurrentsProgrammable UVLO ThresholdOvervoltage Transient ProtectionCycle by Cycle Current Limit, Frequency Fold Back andThermal Shutdown ProtectionAvailable in the SOIC8 PackageSupported by SwitcherPro Software Tool(http://focus.ti.com/docs/toolsw/folders/print/switcherpro.html)

Description

The TPS54233-Q1 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-Q1 is available in an 8-pin SOIC package that has been internally optimized to improve thermal performance. The TPS54233-Q1 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-Q1 is available in an 8-pin SOIC package that has been internally optimized to improve thermal performance.