Voltage Regulators - Switching Regulators

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TPS543xx/-Q1 & TPS545xx/Q1 DC-DC Converters

Texas Instruments TPS543xx/-Q1 and TPS545xx/-Q1 are 42V input 3.5A and 5A step-down DC-DC converters with an integrated high side MOSFET. TI TPS54360 and TPS54560 are 60V input 3.5A and 5A DC-DC converters with integrated high side MOSFET. TPS54341 / TPS54541 and TPS54361 / TPS54561 devices offer 100kHz to 2.5MHz adjustable switching frequency while TPS543x0 and TPS545x0 devices have 100kHz to 2.5MHz fixed switching frequency. These TI step-down converters survive load dump pulses up to 65V per ISO 7637. All of the parts offer high efficiency at light loads with pulse skipping Eco-mode. The TPS543xx-Q1 & TPS545xx-Q1 devices are AEC-Q100 qualified for automotive applications.

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Part #

Switching Voltage Regulators 42V 5A SD DC-DC Conv erter A 595-TPS5454 A 595-TPS54540DDAR

TPS54540DDA
Texas Instruments
1: HK$52.44
4,020In Stock

Mfr. Part No.
TPS54540DDA

Mouser Part No
595-TPS54540DDA

Texas Instruments

Switching Voltage Regulators 42V 5A SD DC-DC Conv erter A 595-TPS5454 A 595-TPS54540DDAR

Learn More

Datasheet

4,020In Stock

HK$52.44

HK$40.20

HK$37.57

HK$33.37

View

Min.: 1
Mult.: 1

SMD/SMT

SO-PowerPAD-8

Buck

800 mV to 41.1 V

5 A

1 Output

146 uA

100 kHz to 2.5 MHz

- 40 C

+ 125 C

TPS54540

Tube

Switching Voltage Regulators 42 V Input 3.5 A Ste p-Dwn DC/DC Cnvtr A A 595-TPS54340DDAR

TPS54340DDA
Texas Instruments
1: HK$46.28
9,789In Stock

Mfr. Part No.
TPS54340DDA

Mouser Part No
595-TPS54340DDA

Texas Instruments

Switching Voltage Regulators 42 V Input 3.5 A Ste p-Dwn DC/DC Cnvtr A A 595-TPS54340DDAR

Learn More

Datasheet

9,789In Stock

HK$46.28

HK$35.43

HK$33.04

HK$30.00

View

Min.: 1
Mult.: 1

SMD/SMT

SO-PowerPAD-8

Buck

800 mV to 41.1 V

3.5 A

1 Output

146 uA

500 kHz

- 40 C

+ 125 C

TPS54340

Tube

Switching Voltage Regulators 42-V input 3.5-A s t ep-down DC/DC conve A 595-TPS54340BDDAR

TPS54340BDDA
Texas Instruments
1: HK$48.25
3,140In Stock

Mfr. Part No.
TPS54340BDDA

Mouser Part No
595-TPS54340BDDA

Texas Instruments

Switching Voltage Regulators 42-V input 3.5-A s t ep-down DC/DC conve A 595-TPS54340BDDAR

Learn More

Datasheet

3,140In Stock

HK$48.25

HK$36.74

HK$31.98

HK$30.58

View

Min.: 1
Mult.: 1

SMD/SMT

SO-PowerPAD-8

Buck

800 mV to 41.1 V

3.5 A

1 Output

146 uA

100 kHz to 2.5 MHz

- 40 C

+ 150 C

TPS54340B

Tube

Switching Voltage Regulators 42 V Input 3.5 A Ste p-Dwn DC/DC Cnvtr A A 595-TPS54340DDA

TPS54340DDAR
Texas Instruments
1: HK$41.18
24,114In Stock

Mfr. Part No.
TPS54340DDAR

Mouser Part No
595-TPS54340DDAR

Texas Instruments

Switching Voltage Regulators 42 V Input 3.5 A Ste p-Dwn DC/DC Cnvtr A A 595-TPS54340DDA

Learn More

Datasheet

24,114In Stock

Cut Tape

HK$41.18

HK$31.40

HK$28.93

HK$26.22

View

Reel

HK$23.18

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

SMD/SMT

SO-PowerPAD-8

Buck

800 mV to 41.1 V

3.5 A

1 Output

146 uA

100 kHz to 2.5 MHz

- 40 C

+ 150 C

TPS54340

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 60 Vin 3.5 A SD DC-D C Converter A 595-T A 595-TPS54360DDA

TPS54360DDAR
Texas Instruments
1: HK$38.63
11,841In Stock
22,500Expected 8/2/2027

Mfr. Part No.
TPS54360DDAR

Mouser Part No
595-TPS54360DDAR

Texas Instruments

Switching Voltage Regulators 60 Vin 3.5 A SD DC-D C Converter A 595-T A 595-TPS54360DDA

Learn More

Datasheet

11,841In Stock

22,500Expected 8/2/2027

Cut Tape

HK$38.63

HK$29.35

HK$27.04

HK$24.50

View

Reel

HK$21.29

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

SMD/SMT

SO-PowerPAD-8

Buck

800 mV to 58.8 V

3.5 A

1 Output

146 uA

100 kHz to 2.5 MHz

- 40 C

+ 125 C

TPS54360

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 4.5-V to 60-V input 5-A step-down DC-D A A 595-TPS54560BDDA

TPS54560BDDAR
Texas Instruments
1: HK$47.35
8,322In Stock

Mfr. Part No.
TPS54560BDDAR

Mouser Part No
595-TPS54560BDDAR

Texas Instruments

Switching Voltage Regulators 4.5-V to 60-V input 5-A step-down DC-D A A 595-TPS54560BDDA

Learn More

Datasheet

8,322In Stock

Cut Tape

HK$47.35

HK$36.17

HK$33.37

HK$30.25

View

Reel

HK$26.72

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

SMD/SMT

SO-PowerPAD-8

Buck

800 mV to 58.8 V

5 A

1 Output

1.1 mA

100 kHz to 2.5 MHz

- 40 C

+ 150 C

TPS54560B

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 4.5V to 60V Input 5A SD DC-DC Cnvtr A 59 A 595-TPS54561DPRT

TPS54561DPRR
Texas Instruments
1: HK$55.90
4,649In Stock

Mfr. Part No.
TPS54561DPRR

Mouser Part No
595-TPS54561DPRR

Texas Instruments

Switching Voltage Regulators 4.5V to 60V Input 5A SD DC-DC Cnvtr A 59 A 595-TPS54561DPRT

Learn More

Datasheet

4,649In Stock

Cut Tape

HK$55.90

HK$42.91

HK$39.70

HK$36.17

View

Reel

HK$31.89

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

SMD/SMT

WSON-10

Buck

800 mV to 59 V

5 A

1 Output

152 uA

500 kHz

- 40 C

+ 125 C

TPS54561

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 4.5-42V Input 3.5A S D DC-DC Cnvtr A 595 A 595-TPS54341DPRR

TPS54341DPRT
Texas Instruments
1: HK$48.58
476In Stock

Mfr. Part No.
TPS54341DPRT

Mouser Part No
595-TPS54341DPRT

Texas Instruments

Switching Voltage Regulators 4.5-42V Input 3.5A S D DC-DC Cnvtr A 595 A 595-TPS54341DPRR

Learn More

Datasheet

476In Stock

Cut Tape

HK$48.58

HK$36.99

HK$34.11

HK$30.91

Reel

HK$29.35

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

SMD/SMT

WSON-10

Buck

800 mV to 41 V

3.5 A

1 Output

152 uA

500 kHz

- 40 C

+ 85 C

TPS54341

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 60V Inpt 3.5 Stp-Dn DC-DC Cnvrtr w/ c-m A 595-TPS54360DDAR

TPS54360DDA
Texas Instruments
1: HK$53.18
2,146In Stock

Mfr. Part No.
TPS54360DDA

Mouser Part No
595-TPS54360DDA

Texas Instruments

Switching Voltage Regulators 60V Inpt 3.5 Stp-Dn DC-DC Cnvrtr w/ c-m A 595-TPS54360DDAR

Learn More

Datasheet

2,146In Stock

HK$53.18

HK$40.77

HK$37.65

HK$34.28

View

Min.: 1
Mult.: 1

SMD/SMT

SO-PowerPAD-8

Buck

800 mV to 58.8 V

3.5 A

1 Output

146 uA

100 kHz to 2.5 MHz

- 40 C

+ 125 C

TPS54360

Tube

Switching Voltage Regulators 4.5 to 60V Input 3.5 A SD DC-DC Cnvtr A A 595-TPS54361DPRT

TPS54361DPRR
Texas Instruments
1: HK$44.80
1,462In Stock
6,000Expected 11/2/2027

Mfr. Part No.
TPS54361DPRR

Mouser Part No
595-TPS54361DPRR

Texas Instruments

Switching Voltage Regulators 4.5 to 60V Input 3.5 A SD DC-DC Cnvtr A A 595-TPS54361DPRT

Learn More

Datasheet

1,462In Stock

6,000Expected 11/2/2027

Cut Tape

HK$44.80

HK$34.20

HK$31.48

HK$28.61

View

Reel

HK$24.25

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

SMD/SMT

WSON-10

Buck

800 mV to 59 V

3.5 A

1 Output

152 uA

500 kHz

- 40 C

+ 85 C

TPS54361

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 4.5 to 60V Input 3.5 A SD DC-DC Cnvtr A A 595-TPS54361DPRR

TPS54361DPRT
Texas Instruments
1: HK$50.31
552In Stock

Mfr. Part No.
TPS54361DPRT

Mouser Part No
595-TPS54361DPRT

Texas Instruments

Switching Voltage Regulators 4.5 to 60V Input 3.5 A SD DC-DC Cnvtr A A 595-TPS54361DPRR

Learn More

Datasheet

552In Stock

Cut Tape

HK$50.31

HK$38.55

HK$35.67

HK$32.47

Reel

HK$30.91

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

SMD/SMT

WSON-10

Buck

800 mV to 59 V

3.5 A

1 Output

152 uA

500 kHz

- 40 C

+ 85 C

TPS54361

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 4.5-V to 42-V input 5-A step-down conve A 595-TPS54540BDDAR

TPS54540BDDA
Texas Instruments
1: HK$51.21
465In Stock

Mfr. Part No.
TPS54540BDDA

Mouser Part No
595-TPS54540BDDA

Texas Instruments

Switching Voltage Regulators 4.5-V to 42-V input 5-A step-down conve A 595-TPS54540BDDAR

Learn More

Datasheet

465In Stock

HK$51.21

HK$39.29

HK$34.20

HK$32.63

View

Min.: 1
Mult.: 1

SMD/SMT

SO-PowerPAD-8

Buck

800 mV to 41.1 V

5 A

1 Output

146 uA

100 kHz to 2.5 MHz

- 40 C

+ 150 C

TPS54540B

Tube

Switching Voltage Regulators 4.5-V to 42-V input 5-A step-down conve A 595-TPS54540BDDA

TPS54540BDDAR
Texas Instruments
1: HK$43.57
1,877In Stock
5,000Expected 15/10/2026

Mfr. Part No.
TPS54540BDDAR

Mouser Part No
595-TPS54540BDDAR

Texas Instruments

Switching Voltage Regulators 4.5-V to 42-V input 5-A step-down conve A 595-TPS54540BDDA

Learn More

Datasheet

1,877In Stock

5,000Expected 15/10/2026

Cut Tape

HK$43.57

HK$33.21

HK$30.66

HK$27.78

View

Reel

HK$24.50

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

SMD/SMT

SO-PowerPAD-8

Buck

800 mV to 41.1 V

5 A

1 Output

146 uA

100 kHz to 2.5 MHz

- 40 C

+ 150 C

TPS54540B

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 42V 5A SD DC-DC Conv erter A 595-TPS5454 A 595-TPS54540DDA

TPS54540DDAR
Texas Instruments
1: HK$42.91
5,309In Stock

Mfr. Part No.
TPS54540DDAR

Mouser Part No
595-TPS54540DDAR

Texas Instruments

Switching Voltage Regulators 42V 5A SD DC-DC Conv erter A 595-TPS5454 A 595-TPS54540DDA

Datasheet

5,309In Stock

Cut Tape

HK$42.91

HK$33.04

HK$30.50

HK$27.78

View

Reel

HK$24.74

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

SMD/SMT

SO-PowerPAD-8

Buck

800 mV to 41.1 V

5 A

1 Output

146 uA

100 kHz to 2.5 MHz

- 40 C

+ 125 C

TPS54540

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 4.5-42V Input 5A SD DC-DC Cnvtr A 595-TP A 595-TPS54541DPRR

TPS54541DPRT
Texas Instruments
1: HK$54.75
481In Stock

Mfr. Part No.
TPS54541DPRT

Mouser Part No
595-TPS54541DPRT

Texas Instruments

Switching Voltage Regulators 4.5-42V Input 5A SD DC-DC Cnvtr A 595-TP A 595-TPS54541DPRR

Learn More

Datasheet

481In Stock

Cut Tape

HK$54.75

HK$42.00

HK$38.80

HK$35.26

Reel

HK$33.54

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

SMD/SMT

WSON-10

Buck

800 mV to 41 V

5 A

1 Output

152 uA

500 kHz

- 40 C

+ 85 C

TPS54541

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 4.5-V to 60-V input 5-A step-down DC-D A A 595-TPS54560BDDAR

TPS54560BDDA
Texas Instruments
1: HK$58.69
3,140In Stock

Mfr. Part No.
TPS54560BDDA

Mouser Part No
595-TPS54560BDDA

Texas Instruments

Switching Voltage Regulators 4.5-V to 60-V input 5-A step-down DC-D A A 595-TPS54560BDDAR

Learn More

Datasheet

3,140In Stock

HK$58.69

HK$47.35

HK$40.69

HK$39.05

View

Min.: 1
Mult.: 1

SMD/SMT

SO-PowerPAD-8

Buck

800 mV to 58.8 V

5 A

1 Output

1.1 mA

100 kHz to 2.5 MHz

- 40 C

+ 150 C

TPS54560B

Tube

Switching Voltage Regulators 60V Input 5 A SD DC- DC Cnvtr A 595-TPS5 A 595-TPS54560DDAR

TPS54560DDA
Texas Instruments
1: HK$62.06
4,075In Stock
2,100On Order

Mfr. Part No.
TPS54560DDA

Mouser Part No
595-TPS54560DDA

Texas Instruments

Switching Voltage Regulators 60V Input 5 A SD DC- DC Cnvtr A 595-TPS5 A 595-TPS54560DDAR

Learn More

Datasheet

4,075In Stock

2,100On Order

HK$62.06

HK$48.00

HK$41.26

HK$39.62

View

Min.: 1
Mult.: 1

SMD/SMT

SO-PowerPAD-8

Buck

800 mV to 58.8 V

5 A

1 Output

1.1 mA

100 kHz to 2.5 MHz

- 40 C

+ 125 C

TPS54560

Tube

Switching Voltage Regulators 60V Input 5 A SD DC- DC Cnvtr A 595-TPS5 A 595-TPS54560DDA

TPS54560DDAR
Texas Instruments
1: HK$47.35
437In Stock
10,000Expected 20/11/2026

Mfr. Part No.
TPS54560DDAR

Mouser Part No
595-TPS54560DDAR

Texas Instruments

Switching Voltage Regulators 60V Input 5 A SD DC- DC Cnvtr A 595-TPS5 A 595-TPS54560DDA

Learn More

Datasheet

437In Stock

10,000Expected 20/11/2026

Cut Tape

HK$47.35

HK$36.17

HK$33.37

HK$30.25

View

Reel

HK$26.72

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

SMD/SMT

SO-PowerPAD-8

Buck

800 mV to 58.8 V

5 A

1 Output

1.1 mA

100 kHz to 2.5 MHz

- 40 C

+ 125 C

TPS54560

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 4.5V to 60V Input 5A SD DC-DC Cnvtr A 59 A 595-TPS54561DPRR

TPS54561DPRT
Texas Instruments
1: HK$67.24
308In Stock

Mfr. Part No.
TPS54561DPRT

Mouser Part No
595-TPS54561DPRT

Texas Instruments

Switching Voltage Regulators 4.5V to 60V Input 5A SD DC-DC Cnvtr A 59 A 595-TPS54561DPRR

Learn More

Datasheet

308In Stock

Cut Tape

HK$67.24

HK$51.79

HK$48.00

HK$43.73

Reel

HK$40.52

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

SMD/SMT

WSON-10

Buck

800 mV to 59 V

5 A

1 Output

152 uA

500 kHz

- 40 C

+ 125 C

TPS54561

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 4.5 to 42V Input 3.5 A SD DC-DC Cnvtr A A 595-TPS54341DPRT

TPS54341DPRR
Texas Instruments
1: HK$42.66
199In Stock
3,000Expected 3/12/2026

Mfr. Part No.
TPS54341DPRR

Mouser Part No
595-TPS54341DPRR

Texas Instruments

Switching Voltage Regulators 4.5 to 42V Input 3.5 A SD DC-DC Cnvtr A A 595-TPS54341DPRT

Datasheet

199In Stock

3,000Expected 3/12/2026

Cut Tape

HK$42.66

HK$32.47

HK$29.92

HK$26.14

View

Reel

HK$22.77

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

SMD/SMT

WSON-10

Buck

800 mV to 41 V

3.5 A

1 Output

152 uA

500 kHz

- 40 C

+ 85 C

TPS54341

Reel, Cut Tape, MouseReel

Switching Voltage Regulators DC-DC converter A 59 5-TPS54361QDPRRQ1 A A 595-TPS54361QDPRRQ1

TPS54361QDPRTQ1
Texas Instruments
1: HK$57.87
35In Stock
6,488On Order

Mfr. Part No.
TPS54361QDPRTQ1

Mouser Part No
595-TPS54361QDPRTQ1

Texas Instruments

Switching Voltage Regulators DC-DC converter A 59 5-TPS54361QDPRRQ1 A A 595-TPS54361QDPRRQ1

Datasheet

35In Stock

6,488On Order

Cut Tape

HK$57.87

HK$44.39

HK$41.02

HK$37.32

Reel

HK$35.43

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

SMD/SMT

WSON-10

Buck

800 mV to 59 V

3.5 A

1 Output

152 uA

500 kHz

- 40 C

+ 125 C

AEC-Q100

TPS54361

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 4.5V to 42V Input 5A SD DC-DC Cnvtr A 59 A 595-TPS54541DPRT

TPS54541DPRR
Texas Instruments
1: HK$47.02
207In Stock
3,000Expected 10/12/2026

Mfr. Part No.
TPS54541DPRR

Mouser Part No
595-TPS54541DPRR

Texas Instruments

Switching Voltage Regulators 4.5V to 42V Input 5A SD DC-DC Cnvtr A 59 A 595-TPS54541DPRT

Datasheet

207In Stock

3,000Expected 10/12/2026

Cut Tape

HK$47.02

HK$35.92

HK$33.13

HK$30.09

View

Reel

HK$27.13

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

SMD/SMT

WSON-10

Buck

800 mV to 41 V

5 A

1 Output

152 uA

500 kHz

- 40 C

+ 85 C

TPS54541

Reel, Cut Tape, MouseReel

Switching Voltage Regulators Auto 4.5-60Vin 5A SD DC-DC Converter A 5 A 595-TPS54561QDPRTQ1

TPS54561QDPRRQ1
Texas Instruments
1: HK$65.51
150In Stock
3,000Expected 20/8/2026

Mfr. Part No.
TPS54561QDPRRQ1

Mouser Part No
595-TPS54561QDPRRQ1

Texas Instruments

Switching Voltage Regulators Auto 4.5-60Vin 5A SD DC-DC Converter A 5 A 595-TPS54561QDPRTQ1

Datasheet

150In Stock

3,000Expected 20/8/2026

Cut Tape

HK$65.51

HK$50.72

HK$47.02

HK$42.91

View

Reel

HK$37.15

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

SMD/SMT

WSON-10

Buck

800 mV to 59 V

5 A

1 Output

152 uA

500 kHz

- 40 C

+ 125 C

AEC-Q100

TPS54561

Reel, Cut Tape, MouseReel

Switching Voltage Regulators Auto 4.5-60Vin 5A SD DC-DC Converter A 5 A 595-TPS54561QDPRRQ1

TPS54561QDPRTQ1
Texas Instruments
1: HK$75.46
1,819In Stock
750On Order

Mfr. Part No.
TPS54561QDPRTQ1

Mouser Part No
595-TPS54561QDPRTQ1

Texas Instruments

Switching Voltage Regulators Auto 4.5-60Vin 5A SD DC-DC Converter A 5 A 595-TPS54561QDPRRQ1

Datasheet

1,819In Stock

750On Order

Cut Tape

HK$75.46

HK$59.84

HK$55.57

HK$50.88

Reel

HK$48.66

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

SMD/SMT

WSON-10

Buck

800 mV to 59 V

5 A

1 Output

152 uA

500 kHz

- 40 C

+ 125 C

AEC-Q100

TPS54561

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 42-V input 3.5-A s t ep-down DC/DC conve A 595-TPS54340BDDA

TPS54340BDDAR
Texas Instruments
1: HK$41.43
4,538Expected 26/10/2026

Mfr. Part No.
TPS54340BDDAR

Mouser Part No
595-TPS54340BDDAR

Texas Instruments

Switching Voltage Regulators 42-V input 3.5-A s t ep-down DC/DC conve A 595-TPS54340BDDA

Learn More

Datasheet

4,538Expected 26/10/2026

Cut Tape

HK$41.43

HK$31.56

HK$29.10

HK$26.39

View

Reel

HK$22.93

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

SMD/SMT

SO-PowerPAD-8

Buck

800 mV to 41.1 V

3.5 A

1 Output

146 uA

100 kHz to 2.5 MHz

- 40 C

+ 150 C

TPS54340B

Reel, Cut Tape, MouseReel

TPS543xx/-Q1 & TPS545xx/Q1 DC-DC Converters

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