Integrated Circuits (ICs)

TPS54040ADRCT

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3.5V TO 42V INPUT, 0.5A STEP-DOWN CONVERTER WITH ECO-MODE

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Search across all available documentation for this part.

DocumentsLevel Shifting Control for an Inverting Buck-boost Designing an EMC-compliant interface to motor position encoders – Part 5 +5

Integrated Circuits (ICs)

TPS54040ADRCT

Active

Texas Instruments

3.5V TO 42V INPUT, 0.5A STEP-DOWN CONVERTER WITH ECO-MODE

Deep-Dive with AI

DocumentsLevel Shifting Control for an Inverting Buck-boost Designing an EMC-compliant interface to motor position encoders – Part 5 +5

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	TPS54040ADRCT

Current - Output	500 mA
Frequency - Switching [Max]	2.5 MHz
Frequency - Switching [Min]	100 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	10-VFDFN Exposed Pad
Supplier Device Package	10-VSON (3x3)
Synchronous Rectifier	False
Topology	Buck
Voltage - Input (Max) [Max]	42 V
Voltage - Input (Min) [Min]	3.5 V
Voltage - Output (Max) [Max]	39 V
Voltage - Output (Min/Fixed)	0.8 V

TPS54040A Series

3.5V to 42V Input, 0.5A Step-Down Converter with Eco-Mode

Part	Current - Output	Frequency - Switching [Max]	Frequency - Switching [Min]	Mounting Type	Voltage - Input (Min) [Min]	Voltage - Output (Max) [Max]	Supplier Device Package	Topology	Output Configuration	Output Type	Number of Outputs	Package / Case	Package / Case	Voltage - Input (Max) [Max]	Voltage - Output (Min/Fixed)	Operating Temperature [Max]	Operating Temperature [Min]	Function	Qualification	Grade	Voltage - Output	Voltage - Input [Max]	Voltage - Input [Min]	Main Purpose	Supplied Contents	Frequency - Switching	Utilized IC / Part	Outputs and Type	Outputs and Type	Board Type	Regulator Topology
Texas Instruments TPS54040DGQ	500 mA	2.5 MHz	100 kHz	Surface Mount	3.5 V	39 V	10-HVSSOP	Buck	Positive	Adjustable	1	10-MSOP 10-PowerTFSOP	0.118 in 3 mm	42 V	0.8 V	150 °C	-40 °C	Step-Down
Texas Instruments TPS54040ADRCR	500 mA	2.5 MHz	100 kHz	Surface Mount	3.5 V	39 V	10-VSON (3x3)	Buck	Positive	Adjustable	1	10-VFDFN Exposed Pad		42 V	0.8 V	150 °C	-40 °C	Step-Down
Texas Instruments TPS54040QDGQRQ1	500 mA	2.5 MHz	100 kHz	Surface Mount	3.5 V	39 V	10-HVSSOP	Buck	Positive	Adjustable	1	10-MSOP 10-PowerTFSOP	0.118 in 3 mm	42 V	0.8 V	150 °C	-40 °C	Step-Down	AEC-Q100	Automotive
Texas Instruments TPS54040DGQR	500 mA	2.5 MHz	100 kHz	Surface Mount	3.5 V	39 V	10-HVSSOP	Buck	Positive	Adjustable	1	10-MSOP 10-PowerTFSOP	0.118 in 3 mm	42 V	0.8 V	150 °C	-40 °C	Step-Down
Texas Instruments TPS54040QDRCRQ1	500 mA	2.5 MHz	100 kHz	Surface Mount	3.5 V	39 V	10-VSON (3x3)	Buck	Positive	Adjustable	1	10-VFDFN Exposed Pad		42 V	0.8 V	150 °C	-40 °C	Step-Down	AEC-Q100	Automotive
Texas Instruments TPS54040AGDGQR	500 mA	2.5 MHz	100 kHz	Surface Mount	3.5 V	42 V	10-HVSSOP	Buck	Positive	Adjustable	1	10-MSOP 10-TFSOP Exposed Pad	0.118 in 3 Lead	42 V	0.8 V	150 °C	-40 °C	Step-Down
Texas Instruments TPS54040ADGQ	500 mA	2.5 MHz	100 kHz	Surface Mount	3.5 V	39 V	10-HVSSOP	Buck	Positive	Adjustable	1	10-MSOP 10-PowerTFSOP	0.118 in 3 mm	42 V	0.8 V	150 °C	-40 °C	Step-Down
Texas Instruments TPS54040ADRCT	500 mA	2.5 MHz	100 kHz	Surface Mount	3.5 V	39 V	10-VSON (3x3)	Buck	Positive	Adjustable	1	10-VFDFN Exposed Pad		42 V	0.8 V	150 °C	-40 °C	Step-Down
Texas Instruments TPS54040EVM-456	500 mA																				5 V	42 V	12 V	DC/DC Step Down	Board(s)	700 kHz	TPS54040	Non-Isolated	1	Fully Populated	Buck

Pricing

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

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 2.80
		10	$ 2.51
		25	$ 2.37
		100	$ 2.06
	Digi-Reel®	1	$ 2.80
		10	$ 2.51
		25	$ 2.37
		100	$ 2.06
	Tape & Reel (TR)	250	$ 1.95
		500	$ 1.75
		1250	$ 1.48
		2500	$ 1.40
		6250	$ 1.35
Texas Instruments	SMALL T&R	1	$ 2.34
		100	$ 1.93
		250	$ 1.39
		1000	$ 1.04

Description

General part information

TPS54040A Series

The TPS54040A device is a 42 V, 0.5 A, step down regulator with an integrated high side MOSFET. Current mode control provides simple external compensation and flexible component selection. A low ripple pulse skip mode reduces the no load, regulated input supply current to 116 µA. Using the enable pin, shutdown supply current is nominally 1.3 µA when the enable pin is low.

Under voltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage startup ramp is controlled by the slow start pin that can also be configured for sequencing or tracking. An open drain power good signal indicates when the output is within 94% to 107% of its nominal voltage.

A wide switching frequency range allows efficiency and external component size to be optimized. Frequency fold back and thermal shutdown protects the part during an overload condition.

Documents

Technical documentation and resources

Level Shifting Control for an Inverting Buck-boost

Application note

Designing an EMC-compliant interface to motor position encoders – Part 5

Technical article

Methods to Improve Low Dropout Operation with the TPS54240 and TPS54260 (Rev. A)

Application note

Design Considerations for DC-DC Converters in Fast-Input Slew Rate Applications

Application note

TPS54040A 0.5-A, 42-V Step-Down DC-DC Converter With Eco-Mode™ datasheet (Rev. B)

Data sheet

Power Management Guide 2018 (Rev. R)

Selection guide

Differences between the TPS54x40, TPS54x60 and the TPS54x40A, TPS54x60A

Application note