Specification	TPS54331D

Current - Output	3 A
Frequency - Switching	570 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	150 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	8-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Supplier Device Package	8-SOIC
Synchronous Rectifier	False
Topology	Buck
Voltage - Input (Max) [Max]	28 V
Voltage - Input (Min) [Min]	3.5 V
Voltage - Output (Max) [Max]	25 V
Voltage - Output (Min/Fixed)	0.8 V

TPS54331-Q1 Series

Automotive 3.5V to 28V, 570kHz Fixed Frequency 3A Buck Converter with Eco-Mode™

Part	Output Configuration	Package / Case	Package / Case [y]	Package / Case [x]	Voltage - Output (Max) [Max]	Mounting Type	Voltage - Input (Min) [Min]	Topology	Supplier Device Package	Function	Frequency - Switching	Voltage - Input (Max) [Max]	Current - Output	Operating Temperature [Max]	Operating Temperature [Min]	Output Type	Number of Outputs	Voltage - Output (Min/Fixed)	Grade	Qualification	Voltage - Input [Max]	Voltage - Input [Min]	Regulator Topology	Utilized IC / Part	Board Type	Main Purpose	Voltage - Output	Outputs and Type	Outputs and Type	Supplied Contents
Texas Instruments TPS54331DG4	Positive	8-SOIC	3.9 mm	0.154 in	25 V	Surface Mount	3.5 V	Buck	8-SOIC	Step-Down	570 kHz	28 V	3 A	150 °C	-40 °C	Adjustable	1	0.8 V
Texas Instruments TPS54331DDA	Positive	8-PowerSOIC	3.9 mm	0.154 in	25 V	Surface Mount	3.5 V	Buck	8-SO PowerPad	Step-Down	570 kHz	28 V	3 A	150 °C	-40 °C	Adjustable	1	0.8 V
Texas Instruments TPS54331QDRQ1	Positive	8-SOIC	3.9 mm	0.154 in	25 V	Surface Mount	3.5 V	Buck	8-SOIC	Step-Down	570 kHz	28 V	3 A	125 °C	-40 °C	Adjustable	1	0.8 V	Automotive	AEC-Q100
Texas Instruments TPS54331D	Positive	8-SOIC	3.9 mm	0.154 in	25 V	Surface Mount	3.5 V	Buck	8-SOIC	Step-Down	570 kHz	28 V	3 A	150 °C	-40 °C	Adjustable	1	0.8 V
Texas Instruments TPS54331DR	Positive	8-SOIC	3.9 mm	0.154 in	25 V	Surface Mount	3.5 V	Buck	8-SOIC	Step-Down	570 kHz	28 V	3 A	150 °C	-40 °C	Adjustable	1	0.8 V
Texas Instruments TPS54331EVM-232											570 kHz		3 A								28 V	7 V	Buck	TPS54331	Fully Populated	DC/DC Step Down	3.3 V	Non-Isolated	1	Board(s)

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 2.12
		10	$ 1.90
		75	$ 1.79
		150	$ 1.53
		300	$ 1.43
		525	$ 1.25
		1050	$ 1.04
		2550	$ 0.97
		5025	$ 0.93
Newark	Each	1	$ 3.17
		10	$ 2.97
		25	$ 2.79
		50	$ 2.69
		150	$ 2.56
		300	$ 2.45
		525	$ 2.42
Texas Instruments	TUBE	1	$ 1.59
		100	$ 1.31
		250	$ 0.94
		1000	$ 0.71

Description

General part information

TPS54331-Q1 Series

The TPS54331 is a 28-V, 3-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 TPS54331 is available in an 8-pin SOIC package that has been internally optimized to improve thermal performance.