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10-TFSOP, 10-MSOP. Exposed Pad
Integrated Circuits (ICs)

TPS54140ADGQ

Active
Texas Instruments

3.5V TO 42V INPUT, 1.5A STEP-DOWN CONVERTER WITH ECO-MODE

Deep-Dive with AI

Search across all available documentation for this part.

DocumentsMethods to Improve Low Dropout Operation with the TPS54240 and TPS54260 (Rev. A)Differences between the TPS54x40, TPS54x60 and the TPS54x40A, TPS54x60A+5
10-TFSOP, 10-MSOP. Exposed Pad
Integrated Circuits (ICs)

TPS54140ADGQ

Active
Texas Instruments

3.5V TO 42V INPUT, 1.5A STEP-DOWN CONVERTER WITH ECO-MODE

Deep-Dive with AI

DocumentsMethods to Improve Low Dropout Operation with the TPS54240 and TPS54260 (Rev. A)Differences between the TPS54x40, TPS54x60 and the TPS54x40A, TPS54x60A+5

Technical Specifications

Parameters and characteristics for this part

SpecificationTPS54140ADGQ
Current - Output1.5 A
Frequency - Switching [Max]2.5 MHz
Frequency - Switching [Min]100 kHz
FunctionStep-Down
Mounting TypeSurface Mount
Number of Outputs1
Operating Temperature [Max]150 °C
Operating Temperature [Min]-40 °C
Output ConfigurationPositive
Output TypeAdjustable
Package / Case10-PowerTFSOP, 10-MSOP
Package / Case3 mm, 0.118 in
Supplier Device Package10-HVSSOP
Synchronous RectifierFalse
TopologyBuck
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

TPS54140A Series

3.5V to 42V Input, 1.5A Step-Down Converter with Eco-Mode

PartTopologyPackage / CaseVoltage - Input (Max) [Max]Voltage - Input (Min) [Min]Mounting TypeOutput TypeQualificationOperating Temperature [Max]Operating Temperature [Min]Voltage - Output (Max) [Max]Frequency - Switching [Max]Frequency - Switching [Min]Supplier Device PackageNumber of OutputsCurrent - OutputOutput ConfigurationGradeFunctionVoltage - Output (Min/Fixed)Synchronous RectifierPackage / CaseBoard TypeSupplied ContentsFrequency - SwitchingVoltage - Input [Min]Voltage - Input [Max]Voltage - OutputOutputs and TypeOutputs and TypeMain PurposeRegulator TopologyUtilized IC / Part
10-VSON
Texas Instruments
TPS54140QDRCRQ1
Buck
10-VFDFN Exposed Pad
42 V
3.5 V
Surface Mount
Adjustable
AEC-Q100
150 °C
-40 °C
39 V
2.5 MHz
100 kHz
10-VSON (3x3)
1
1.5 A
Positive
Automotive
Step-Down
0.8 V
10-TFSOP, 10-MSOP. Exposed Pad
Texas Instruments
TPS54140ADGQ
Buck
10-MSOP
10-PowerTFSOP
42 V
3.5 V
Surface Mount
Adjustable
150 °C
-40 °C
39 V
2.5 MHz
100 kHz
10-HVSSOP
1
1.5 A
Positive
Step-Down
0.8 V
0.118 in
3 mm
TPS54140EVM-429
Texas Instruments
TPS54140EVM-429
1.5 A
Fully Populated
Board(s)
500 kHz
25 V
42 V
3.3 V
Non-Isolated
1
DC/DC
Step Down
Buck
TPS54140
10-VSON
Texas Instruments
TPS54140ADRCT
Buck
10-VFDFN Exposed Pad
42 V
3.5 V
Surface Mount
Adjustable
150 °C
-40 °C
39 V
2.5 MHz
100 kHz
10-VSON (3x3)
1
1.5 A
Positive
Step-Down
0.8 V
HVSSOP (DGQ)
Texas Instruments
TPS54140DGQ
Buck
10-MSOP
10-PowerTFSOP
42 V
3.5 V
Surface Mount
Adjustable
150 °C
-40 °C
39 V
2.5 MHz
100 kHz
10-HVSSOP
1
1.5 A
Positive
Step-Down
0.8 V
0.118 in
3 mm
10-TFSOP, 10-MSOP. Exposed Pad
Texas Instruments
TPS54140DGQR
Buck
10-MSOP
10-PowerTFSOP
42 V
3.5 V
Surface Mount
Adjustable
150 °C
-40 °C
39 V
2.5 MHz
100 kHz
10-HVSSOP
1
1.5 A
Positive
Step-Down
0.8 V
0.118 in
3 mm

Pricing

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

DistributorPackageQuantity$
DigikeyTube 1$ 2.95
10$ 2.65
80$ 2.17
320$ 2.06
560$ 1.85
1040$ 1.56
2560$ 1.48
5040$ 1.43
Texas InstrumentsTUBE 1$ 2.47
100$ 2.04
250$ 1.47
1000$ 1.10

Description

General part information

TPS54140A Series

The TPS54140 device is a 42-V, 1.5-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, the shutdown supply current is reduced to 1.3 µA.

Undervoltage 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 and tracking. An open-drain power-good signal indicates the output is within 94% to 107% of the nominal voltage.

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