TPS54040DGQ

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Texas Instruments

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

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TPS54040DGQ

Active

Texas Instruments

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

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Description Specifications Series Pricing CAD Documents

Description

General part information

TPS54040 Series

The TPS54040 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 output supply current to 116 µA. Using the enable pin, shutdown supply current is reduced to 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/tracking. An open drain power good signal indicates the output is within 93% 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.

Technical Specifications

Parameters and characteristics for this part

Specification	TPS54040DGQ

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 Length	0.118 in
Package Name	10-HVSSOP, 10-PowerTFSOP, 10-MSOP
Package Width	3 mm
Synchronous Rectifier	No
Topology	Buck
Voltage - Input (Max)	42 V
Voltage - Input (Min)	3.5 V
Voltage - Output (Max)	39 V
Voltage - Output (Min/Fixed)	0.8 V

TPS54040 Series

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

Part	Voltage - Input (Min)	Function	Topology	Package Name	Package Length	Package Width	Number of Outputs	Synchronous Rectifier	Current - Output	Voltage - Input (Max)	Voltage - Output (Min/Fixed)	Frequency - Switching (Max)	Frequency - Switching (Min)	Operating Temperature (Min)	Operating Temperature (Max)	Output Configuration	Output Type	Mounting Type	Voltage - Output (Max)	Package / Case	Qualification	Grade	Package Features	Supplied Contents	Total Output Count	Non-Isolated Output Count	Board Type	Contents	Regulator Topology	Voltage - Input (Maximum)	Voltage - Input (Minimum)	Frequency - Switching	Utilized IC / Part	Voltage - Output	Main Purpose
Texas Instruments TPS54040DGQ	3.5 V	Step-Down	Buck	10-HVSSOP 10-PowerTFSOP 10-MSOP	0.118 in	3 mm	1	No	500 mA	42 V	0.8 V	2.5 MHz	100 kHz	-40 °C	150 °C	Positive	Adjustable	Surface Mount	39 V
Texas Instruments TPS54040ADGQR	3.5 V	Step-Down	Buck	10-HVSSOP 10-PowerTFSOP 10-MSOP	0.118 in	3 mm	1	No	500 mA	42 V	0.8 V	2.5 MHz	100 kHz	-40 °C	150 °C	Positive	Adjustable	Surface Mount	39 V
Texas Instruments TPS54040ADRCR	3.5 V	Step-Down	Buck	10-VSON	3 mm	3 mm	1	No	500 mA	42 V	0.8 V	2.5 MHz	100 kHz	-40 °C	150 °C	Positive	Adjustable	Surface Mount	39 V	10-VFDFN Exposed Pad
Texas Instruments TPS54040QDGQRQ1	3.5 V	Step-Down	Buck	10-HVSSOP 10-PowerTFSOP 10-MSOP	0.118 in	3 mm	1	No	500 mA	42 V	0.8 V	2.5 MHz	100 kHz	-40 °C	150 °C	Positive	Adjustable	Surface Mount	39 V		AEC-Q100	Automotive
Texas Instruments TPS54040DGQR	3.5 V	Step-Down	Buck	10-HVSSOP 10-PowerTFSOP 10-MSOP	0.118 in	3 mm	1	No	500 mA	42 V	0.8 V	2.5 MHz	100 kHz	-40 °C	150 °C	Positive	Adjustable	Surface Mount	39 V
Texas Instruments TPS54040QDRCRQ1	3.5 V	Step-Down	Buck	10-VSON	3 mm	3 mm	1	No	500 mA	42 V	0.8 V	2.5 MHz	100 kHz	-40 °C	150 °C	Positive	Adjustable	Surface Mount	39 V	10-VFDFN Exposed Pad	AEC-Q100	Automotive
Texas Instruments TPS54040AGDGQR	3.5 V	Step-Down	Buck	10-HVSSOP 10-MSOP	0.118 in	3 mm	1	No	500 mA	42 V	0.8 V	2.5 MHz	100 kHz	-40 °C	150 °C	Positive	Adjustable	Surface Mount	42 V				Exposed Pad
Texas Instruments TPS54040ADGQ	3.5 V	Step-Down	Buck	10-HVSSOP 10-PowerTFSOP 10-MSOP	0.118 in	3 mm	1	No	500 mA	42 V	0.8 V	2.5 MHz	100 kHz	-40 °C	150 °C	Positive	Adjustable	Surface Mount	39 V
Texas Instruments TPS54040ADRCT	3.5 V	Step-Down	Buck	10-VSON	3 mm	3 mm	1	No	500 mA	42 V	0.8 V	2.5 MHz	100 kHz	-40 °C	150 °C	Positive	Adjustable	Surface Mount	39 V	10-VFDFN Exposed Pad
Texas Instruments TPS54040EVM-456									500 mA								Non-Isolated							Board(s)	1	1 count	Fully Populated	Board	Buck	42 V	12 V	700 kHz	TPS54040	5 VDC	DC/DC Step Down