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HSOIC (DDA)
Integrated Circuits (ICs)

TPS54340BDDA

Active
Texas Instruments

42-V INPUT, 3.5-A, STEP-DOWN DC/DC CONVERTER WITH ECO-MODE™

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Search across all available documentation for this part.

DocumentsTest Report for the iPad Automotive ChargerCreating GSM Power Supply from TPS54260+3
HSOIC (DDA)
Integrated Circuits (ICs)

TPS54340BDDA

Active
Texas Instruments

42-V INPUT, 3.5-A, STEP-DOWN DC/DC CONVERTER WITH ECO-MODE™

Deep-Dive with AI

DocumentsTest Report for the iPad Automotive ChargerCreating GSM Power Supply from TPS54260+3

Technical Specifications

Parameters and characteristics for this part

SpecificationTPS54340BDDA
Current - Output3.5 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 / Case8-PowerSOIC
Package / Case [x]0.154 in
Package / Case [y]3.9 mm
Supplier Device Package8-SO PowerPad
Synchronous RectifierFalse
TopologyBuck
Voltage - Input (Max) [Max]42 V
Voltage - Input (Min) [Min]4.5 V
Voltage - Output (Max) [Max]41.1 V
Voltage - Output (Min/Fixed)0.8 V

TPS54340B-Q1 Series

Automotive, 4.5V to 42V Input, 3.5A Step-Down Converter With Eco-Mode™

PartNumber of OutputsOutput ConfigurationPackage / Case [y]Package / Case [x]Package / CaseFrequency - Switching [Max]Frequency - Switching [Min]QualificationMounting TypeVoltage - Output (Max) [Max]Synchronous RectifierVoltage - Input (Max) [Max]FunctionGradeOutput TypeTopologyCurrent - OutputVoltage - Output (Min/Fixed)Voltage - Input (Min) [Min]Operating Temperature [Max]Operating Temperature [Min]Supplier Device PackageFrequency - SwitchingBoard TypeSupplied ContentsMain PurposeRegulator TopologyOutputs and TypeOutputs and TypeUtilized IC / PartVoltage - Input [Min]Voltage - Input [Max]Voltage - Output
8-HSOP
Texas Instruments
TPS54340QDDAQ1
1
Positive
3.9 mm
0.154 in
8-PowerSOIC
2.5 MHz
100 kHz
AEC-Q100
Surface Mount
41 V
42 V
Step-Down
Automotive
Adjustable
Buck
Split Rail
3.5 A
0.8 V
4.5 V
150 °C
-40 °C
8-SO PowerPad
Eco-Mode
Texas Instruments
TPS54340-Q1EVM-593
3.5 A
400 kHz
Fully Populated
Board(s)
DC/DC
Step Down
Buck
Non-Isolated
1
TPS54340-Q1
7 V
42 V
5 V
HSOIC (DDA)
Texas Instruments
TPS54340BQDDARQ1
1
Positive
3.9 mm
0.154 in
8-PowerSOIC
2.5 MHz
100 kHz
AEC-Q100
Surface Mount
41.1 V
42 V
Step-Down
Automotive
Adjustable
Buck
3.5 A
0.8 V
4.5 V
150 °C
-40 °C
8-SO PowerPad
HSOIC (DDA)
Texas Instruments
TPS54340BDDAR
1
Positive
3.9 mm
0.154 in
8-PowerSOIC
2.5 MHz
100 kHz
Surface Mount
41.1 V
42 V
Step-Down
Adjustable
Buck
3.5 A
0.8 V
4.5 V
150 °C
-40 °C
8-SO PowerPad
TPS54340EVM-182
Texas Instruments
TPS54340EVM-182
3.5 A
600 kHz
Fully Populated
Board(s)
DC/DC
Step Down
Buck
Non-Isolated
1
TPS54340
6 V
42 V
3.3 V
8-HSOP Exposed Pad
Texas Instruments
TPS54340DDAR
1
Positive
3.9 mm
0.154 in
8-PowerSOIC
2.5 MHz
100 kHz
Surface Mount
41.1 V
42 V
Step-Down
Adjustable
Buck
3.5 A
0.8 V
4.5 V
150 °C
-40 °C
8-SO PowerPad
HSOIC (DDA)
Texas Instruments
TPS54340BDDA
1
Positive
3.9 mm
0.154 in
8-PowerSOIC
2.5 MHz
100 kHz
Surface Mount
41.1 V
42 V
Step-Down
Adjustable
Buck
3.5 A
0.8 V
4.5 V
150 °C
-40 °C
8-SO PowerPad
HSOIC (DDA)
Texas Instruments
TPS54340DDA
1
Positive
3.9 mm
0.154 in
8-PowerSOIC
2.5 MHz
100 kHz
Surface Mount
41.1 V
42 V
Step-Down
Adjustable
Buck
3.5 A
0.8 V
4.5 V
150 °C
-40 °C
8-SO PowerPad

Pricing

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

DistributorPackageQuantity$
DigikeyTube 1$ 5.07
10$ 3.42
25$ 2.99
100$ 2.51
250$ 2.27
500$ 2.18
Texas InstrumentsTUBE 1$ 3.52
100$ 3.08
250$ 2.16
1000$ 1.74

Description

General part information

TPS54340B-Q1 Series

The TPS54340-Q1 device is a 42-V, 3.5-A, step-down regulator with an integrated high-side MOSFET. The device survives load-dump pulses up to 45 V per ISO 7637. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no-load supply current to 146 µA. Shutdown supply current is reduced to 1 µA when the enable pin is pulled low.

Undervoltage lockout is internally set at 4.3 V but can be increased using an external resistor divider at the enable pin. The output voltage start-up ramp is internally controlled to provide a controlled start-up and eliminate overshoot.

A wide adjustable frequency range allows for optimization of either efficiency or external component size. Frequency foldback and thermal shutdown protects internal and external components during an overload condition.