Switching Controllers – Mouser Denmark

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Buck Converters for Power Over Ethernet

A buck converter is a power efficient voltage step-down converter that changes a higher voltage to a lower voltage. Whereas a linear regulator can achieve the same purpose, regulators can waste more energy via conversion of excess energy to heat. For this reason, a buck DC/DC converter is the preferred choice for power-efficient designs. A DC/DC boost converter, also known as a step-up converter, is a semiconductor device or electrical circuit that has an output DC voltage that is greater than the DC input voltage.

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Part #

Switching Controllers 42V SYNC STEP-DOWN A 926-LM3150MHE/NOPB A 926-LM3150MHE/NOPB

LM3150MH/NOPB
Texas Instruments
1: 32,15 kr.
1.252In Stock

Mfr. Part No.
LM3150MH/NOPB

Mouser Part No
926-LM3150MH/NOPB

Texas Instruments

Switching Controllers 42V SYNC STEP-DOWN A 926-LM3150MHE/NOPB A 926-LM3150MHE/NOPB

Learn More

Datasheet

1.252In Stock

32,15 kr.

24,54 kr.

20,52 kr.

19,69 kr.

View

Min.: 1
Mult.: 1

Buck

1 Output

1 MHz

96 %

600 mV

12 A

- 40 C

+ 125 C

SMD/SMT

HTSSOP-14

Tube

Switching Controllers 42V SYNC STEP-DOWN A 926-LM3150MH/NOPB A A 926-LM3150MH/NOPB

LM3150MHE/NOPB
Texas Instruments
1: 33,05 kr.
1.867In Stock

Mfr. Part No.
LM3150MHE/NOPB

Mouser Part No
926-LM3150MHE/NOPB

Texas Instruments

Switching Controllers 42V SYNC STEP-DOWN A 926-LM3150MH/NOPB A A 926-LM3150MH/NOPB

Learn More

Datasheet

1.867In Stock

Cut Tape

33,05 kr.

24,92 kr.

22,90 kr.

20,66 kr.

Reel

19,55 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Buck

1 Output

1 MHz

96 %

600 mV

12 A

- 40 C

+ 125 C

SMD/SMT

HTSSOP-14

Reel, Cut Tape, MouseReel

Switching Controllers HYSTERETIC PFET BUCK CONTROLLER A 926-LM A 926-LM3475MFX/NOPB

LM3475MF/NOPB
Texas Instruments
1: 13,88 kr.
4.481In Stock

Mfr. Part No.
LM3475MF/NOPB

Mouser Part No
926-LM3475MF/NOPB

Texas Instruments

Switching Controllers HYSTERETIC PFET BUCK CONTROLLER A 926-LM A 926-LM3475MFX/NOPB

Datasheet

4.481In Stock

Cut Tape

13,88 kr.

10,29 kr.

9,40 kr.

8,36 kr.

Reel

7,31 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

Buck

1 Output

1.4 MHz

100 %

800 mV to 10 V

5 A

- 40 C

+ 125 C

SMD/SMT

SOT-23-5

Reel, Cut Tape, MouseReel

Switching Controllers 10-V hysteretic PFE T buck controller 5- A 926-LM3475MF/NOPB

LM3475MFX/NOPB
Texas Instruments
1: 11,79 kr.
5.442In Stock

Mfr. Part No.
LM3475MFX/NOPB

Mouser Part No
926-LM3475MFX/NOPB

Texas Instruments

Switching Controllers 10-V hysteretic PFE T buck controller 5- A 926-LM3475MF/NOPB

Datasheet

5.442In Stock

Cut Tape

11,79 kr.

8,65 kr.

7,91 kr.

7,06 kr.

Reel

5,90 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

Buck

1 Output

2 MHz

100 %

800 mV to 10 V

5 A

- 40 C

+ 125 C

SMD/SMT

SOT-23-5

Reel, Cut Tape, MouseReel

Switching Controllers HYSTERETIC PFET BUCK CONTROLLER A 926-LM A 926-LM3485MMX/NOPB

LM3485MM/NOPB
Texas Instruments
1: 14,10 kr.
9.717In Stock

Mfr. Part No.
LM3485MM/NOPB

Mouser Part No
926-LM3485MM/NOPB

Texas Instruments

Switching Controllers HYSTERETIC PFET BUCK CONTROLLER A 926-LM A 926-LM3485MMX/NOPB

Datasheet

9.717In Stock

Cut Tape

14,10 kr.

10,44 kr.

9,55 kr.

8,50 kr.

Reel

7,45 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

Buck

1 Output

50 kHz to 1 MHz

100 %

1.242 V to 35 V

4 A

- 40 C

+ 125 C

SMD/SMT

VSSOP-8

Reel, Cut Tape, MouseReel

Switching Controllers Hysteretic PFET Buck Cntlr w/ Enable Pin A 926-LM3489MM/NOPB

LM3489MMX/NOPB
Texas Instruments
1: 10,59 kr.
8.734In Stock

Mfr. Part No.
LM3489MMX/NOPB

Mouser Part No
926-LM3489MMX/NOPB

Texas Instruments

Switching Controllers Hysteretic PFET Buck Cntlr w/ Enable Pin A 926-LM3489MM/NOPB

Datasheet

8.734In Stock

Cut Tape

10,59 kr.

7,76 kr.

7,06 kr.

6,26 kr.

View

Reel

5,24 kr.

MouseReel Available

Min.: 1
Mult.: 1

: 3.500

Buck

1 Output

1 MHz to 1.4 MHz

100 %

1.239 V to 35 V

4 A

- 40 C

+ 125 C

SMD/SMT

VSSOP-8

Reel, Cut Tape, MouseReel

Switching Controllers Automotive Grade 4.5 -35V Hysteretic Non A 926-LM3489QMM/NOPB

LM3489QMMX/NOPB
Texas Instruments
1: 13,35 kr.
2.803In Stock

Mfr. Part No.
LM3489QMMX/NOPB

Mouser Part No
926-LM3489QMMX/NOPB

Texas Instruments

Switching Controllers Automotive Grade 4.5 -35V Hysteretic Non A 926-LM3489QMM/NOPB

Datasheet

2.803In Stock

Cut Tape

13,35 kr.

9,85 kr.

8,95 kr.

8,06 kr.

Reel

6,93 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 3.500

Buck

1 Output

1 MHz to 1.4 MHz

100 %

1.239 V to 35 V

4 A

- 40 C

+ 125 C

SMD/SMT

VSSOP-8

AEC-Q100

Reel, Cut Tape, MouseReel

Switching Controllers 4.5-75V Wide Vin Co nstant On-Time Non-S A 926-LM5085MME/NOPB

LM5085MM/NOPB
Texas Instruments
1: 22,08 kr.
6.475In Stock

Mfr. Part No.
LM5085MM/NOPB

Mouser Part No
926-LM5085MM/NOPB

Texas Instruments

Switching Controllers 4.5-75V Wide Vin Co nstant On-Time Non-S A 926-LM5085MME/NOPB

Datasheet

6.475In Stock

Cut Tape

22,08 kr.

16,49 kr.

15,14 kr.

13,58 kr.

Reel

11,94 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

Buck

1 Output

1 MHz

100 %

1.25 V to 75 V

1.75 A

- 40 C

+ 125 C

SMD/SMT

VSSOP-8

Reel, Cut Tape, MouseReel

Switching Controllers 4.5-75V Wide Vin Co nstant On-Time Non-S A 926-LM5085MME/NOPB

LM5085MMX/NOPB
Texas Instruments
1: 18,05 kr.
2.723In Stock

Mfr. Part No.
LM5085MMX/NOPB

Mouser Part No
926-LM5085MMX/NOPB

Texas Instruments

Switching Controllers 4.5-75V Wide Vin Co nstant On-Time Non-S A 926-LM5085MME/NOPB

Datasheet

2.723In Stock

Cut Tape

18,05 kr.

13,50 kr.

12,31 kr.

11,12 kr.

Reel

9,40 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 3.500

Buck

1 Output

1 MHz

100 %

1.25 V to 75 V

1.75 A

- 40 C

+ 125 C

SMD/SMT

VSSOP-8

Reel, Cut Tape, MouseReel

Switching Controllers 75V Constant PFET Bu ck Switch Cntlr A 9 A 926-LM5085MYE/NOPB

LM5085MY/NOPB
Texas Instruments
1: 22,08 kr.
2.392In Stock
2.000On Order

Mfr. Part No.
LM5085MY/NOPB

Mouser Part No
926-LM5085MY/NOPB

Texas Instruments

Switching Controllers 75V Constant PFET Bu ck Switch Cntlr A 9 A 926-LM5085MYE/NOPB

Datasheet

2.392In Stock

2.000On Order

Cut Tape

22,08 kr.

16,49 kr.

15,14 kr.

13,58 kr.

Reel

11,94 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

Buck

1 Output

1 MHz

100 %

1.25 V to 75 V

1.75 A

- 40 C

+ 125 C

SMD/SMT

MSOP-PowerPad-8

Reel, Cut Tape, MouseReel

Switching Controllers 4.5-75V Wide Vin Co nstant On-Time Non-S A 926-LM5085MYE/NOPB

LM5085MYX/NOPB
Texas Instruments
1: 18,58 kr.
2.450In Stock
10.500Expected 21/12/2026

Mfr. Part No.
LM5085MYX/NOPB

Mouser Part No
926-LM5085MYX/NOPB

Texas Instruments

Switching Controllers 4.5-75V Wide Vin Co nstant On-Time Non-S A 926-LM5085MYE/NOPB

Datasheet

2.450In Stock

10.500Expected 21/12/2026

Cut Tape

18,58 kr.

13,88 kr.

12,68 kr.

11,34 kr.

Reel

9,70 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 3.500

Buck

1 Output

1 MHz

100 %

1.25 V to 75 V

1.75 A

- 40 C

+ 125 C

SMD/SMT

MSOP-PowerPad-8

Reel, Cut Tape, MouseReel

Switching Controllers 4.5-75V Wide Vin Co nstant On-Time Non-S A 926-LM5085SDE/NOPB

LM5085SD/NOPB
Texas Instruments
1: 21,26 kr.
2.494In Stock

Mfr. Part No.
LM5085SD/NOPB

Mouser Part No
926-LM5085SD/NOPB

Texas Instruments

Switching Controllers 4.5-75V Wide Vin Co nstant On-Time Non-S A 926-LM5085SDE/NOPB

Datasheet

2.494In Stock

Cut Tape

21,26 kr.

15,89 kr.

14,62 kr.

13,13 kr.

Reel

11,64 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

Buck

1 Output

1 MHz

100 %

1.25 V to 75 V

1.75 A

- 40 C

+ 125 C

SMD/SMT

LLP-8

Reel, Cut Tape, MouseReel

Switching Controllers WIDE RANGE SYNCH BUC K CONTROLLER A 926- A 926-LM5116MH/NOPB

LM5116MHX/NOPB
Texas Instruments
1: 39,76 kr.
609In Stock
17.500Expected 21/01/2027

Mfr. Part No.
LM5116MHX/NOPB

Mouser Part No
926-LM5116MHX/NOPB

Texas Instruments

Switching Controllers WIDE RANGE SYNCH BUC K CONTROLLER A 926- A 926-LM5116MH/NOPB

Datasheet

609In Stock

17.500Expected 21/01/2027

Cut Tape

39,76 kr.

31,93 kr.

28,20 kr.

25,59 kr.

View

Reel

23,57 kr.

MouseReel Available

Min.: 1
Mult.: 1

: 2.500

Buck

1 Output

50 kHz to 1 MHz

98 %

1.215 V to 80 V

20 A

- 40 C

+ 150 C

SMD/SMT

HTSSOP-20

Reel, Cut Tape, MouseReel

Switching Controllers Commercial 30-V lo w -power current-mode

UCC38C50DR
Texas Instruments
1: 7,53 kr.
1.425In Stock

Mfr. Part No.
UCC38C50DR

Mouser Part No
595-UCC38C50DR

Texas Instruments

Switching Controllers Commercial 30-V lo w -power current-mode

Learn More

Datasheet

1.425In Stock

Cut Tape

7,53 kr.

5,37 kr.

4,83 kr.

4,25 kr.

Reel

3,50 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 2.500

Buck, Flyback

1 Output

110 kHz

100 %

200 mA

0 C

+ 85 C

SMD/SMT

SOIC-8

Reel, Cut Tape, MouseReel

Switching Controllers Commercial 30-V lo w -power current-mode

UCC38C52DR
Texas Instruments
1: 7,31 kr.
2.470In Stock

Mfr. Part No.
UCC38C52DR

Mouser Part No
595-UCC38C52DR

Texas Instruments

Switching Controllers Commercial 30-V lo w -power current-mode

Learn More

Datasheet

2.470In Stock

Cut Tape

7,31 kr.

5,26 kr.

4,75 kr.

4,19 kr.

Reel

3,44 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 2.500

Buck, Flyback

1 Output

110 kHz

100 %

200 mA

0 C

+ 85 C

SMD/SMT

SOIC-8

Reel, Cut Tape, MouseReel

Switching Controllers Synchronous Buck PWM Control 600kHz 12ns

MCP19035-BAAAE/MF
Microchip Technology
1: 13,35 kr.
431In Stock

Mfr. Part No.
MCP19035-BAAAE/MF

Mouser Part No
579-MCP19035BAAAE/MF

Microchip Technology

Switching Controllers Synchronous Buck PWM Control 600kHz 12ns

Learn More

Datasheet

431In Stock

13,35 kr.

11,12 kr.

10,22 kr.

Min.: 1
Mult.: 1

Buck

1 Output

600 kHz

85 %

5 V

50 mA

- 40 C

+ 125 C

SMD/SMT

DFN-10

AEC-Q100

Tube

Switching Controllers Synchronous Buck PWM Control 600kHz 12ns

MCP19035-BAABE/MF
Microchip Technology
1: 13,35 kr.
179In Stock

Mfr. Part No.
MCP19035-BAABE/MF

Mouser Part No
579-MCP19035BAABE/MF

Microchip Technology

Switching Controllers Synchronous Buck PWM Control 600kHz 12ns

Learn More

Datasheet

179In Stock

13,35 kr.

11,12 kr.

10,22 kr.

Min.: 1
Mult.: 1

Buck

1 Output

600 kHz

85 %

5 V

50 mA

- 40 C

+ 125 C

SMD/SMT

DFN-10

AEC-Q100

Tube

Switching Controllers Sync Buck PWM Controller

MCP19111-E/MQ
Microchip Technology
1: 33,50 kr.
25In Stock

Mfr. Part No.
MCP19111-E/MQ

Mouser Part No
579-MCP19111-E/MQ

Microchip Technology

Switching Controllers Sync Buck PWM Controller

Learn More

Datasheet

25In Stock

33,50 kr.

32,90 kr.

32,67 kr.

31,78 kr.

View

Min.: 1
Mult.: 1

Boost, Buck

1 Output

100 kHz

100 %

500 mV to 3.6 V

30 mA

- 40 C

+ 125 C

SMD/SMT

QFN-28

Tube

Switching Controllers 3.5-V to 65-V low Iq dual 2-phase sync

LM5143QRWGRQ1
Texas Instruments
1: 103,32 kr.
4.993Expected 30/10/2026

Mfr. Part No.
LM5143QRWGRQ1

Mouser Part No
595-LM5143QRWGRQ1

Texas Instruments

Switching Controllers 3.5-V to 65-V low Iq dual 2-phase sync

Learn More

Datasheet

4.993Expected 30/10/2026

Cut Tape

103,32 kr.

81,84 kr.

76,47 kr.

71,24 kr.

View

Reel

63,56 kr.

MouseReel Available

Min.: 1
Mult.: 1

: 2.500

Buck

2 Output

100 kHz to 2.2 MHz

99 %

600 mV to 55 V

100 A

- 40 C

+ 150 C

SMD/SMT

VQFNP-40

AEC-Q100

Reel, Cut Tape, MouseReel

Switching Controllers Low Vin Synch Buck D C/DC Controller A 5 A 595-TPS40041DRBT

TPS40041DRBR
Texas Instruments
1: 13,20 kr.
19In Stock

Mfr. Part No.
TPS40041DRBR

Mouser Part No
595-TPS40041DRBR

Texas Instruments

Switching Controllers Low Vin Synch Buck D C/DC Controller A 5 A 595-TPS40041DRBT

Datasheet

19In Stock

Cut Tape

13,20 kr.

9,77 kr.

8,88 kr.

7,91 kr.

Reel

6,36 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

Buck

1 Output

600 kHz

88 %

600 mV to 4.95 V

15 A

- 40 C

+ 85 C

SMD/SMT

SON-8

Reel, Cut Tape, MouseReel

Switching Controllers Lo Vin Synch Buck DC /DC Cntrlr A 595-TP A 595-TPS40041DRBR

TPS40041DRBT
Texas Instruments
1: 15,07 kr.
453In Stock

Mfr. Part No.
TPS40041DRBT

Mouser Part No
595-TPS40041DRBT

Texas Instruments

Switching Controllers Lo Vin Synch Buck DC /DC Cntrlr A 595-TP A 595-TPS40041DRBR

Datasheet

453In Stock

Cut Tape

15,07 kr.

11,26 kr.

10,22 kr.

9,62 kr.

Reel

8,28 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Buck

1 Output

600 kHz

88 %

600 mV to 4.95 V

15 A

- 40 C

+ 85 C

SMD/SMT

SON-8

Reel, Cut Tape, MouseReel

Switching Controllers Lo Vin Synch Buck DC /DC Cntrlr ALT 595- ALT 595-TPS40041DRBT

TPS40041DRBTG4
Texas Instruments
1: 15,14 kr.
225In Stock

Mfr. Part No.
TPS40041DRBTG4

Mouser Part No
595-TPS40041DRBTG4

Texas Instruments

Switching Controllers Lo Vin Synch Buck DC /DC Cntrlr ALT 595- ALT 595-TPS40041DRBT

Datasheet

Product Comments

225In Stock

Cut Tape

15,14 kr.

11,19 kr.

10,22 kr.

9,10 kr.

Reel

8,58 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Buck

1 Output

600 kHz

88 %

600 mV to 4.95 V

15 A

- 40 C

+ 85 C

SMD/SMT

SON-8

Reel, Cut Tape, MouseReel

Switching Controllers Low Pin Ct Low Vin S ynch Buck DCDC A 59 A 595-TPS40042DRCR

TPS40042DRCT
Texas Instruments
1: 19,32 kr.
30In Stock

Mfr. Part No.
TPS40042DRCT

Mouser Part No
595-TPS40042DRCT

Texas Instruments

Switching Controllers Low Pin Ct Low Vin S ynch Buck DCDC A 59 A 595-TPS40042DRCR

Datasheet

30In Stock

Cut Tape

19,32 kr.

14,47 kr.

13,20 kr.

11,86 kr.

Reel

11,19 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Buck

1 Output

600 kHz

95 %

600 mV

- 40 C

+ 85 C

SMD/SMT

VSON-10

Reel, Cut Tape, MouseReel

Switching Controllers Wide Input Synch Buc k Controller A 595- A 595-TPS40060PWPR

TPS40060PWP
Texas Instruments
1: 43,49 kr.
268In Stock

Mfr. Part No.
TPS40060PWP

Mouser Part No
595-TPS40060PWP

Texas Instruments

Switching Controllers Wide Input Synch Buc k Controller A 595- A 595-TPS40060PWPR

Datasheet

268In Stock

43,49 kr.

34,32 kr.

30,74 kr.

29,54 kr.

View

Min.: 1
Mult.: 1

Buck

1 Output

100 kHz to 1 MHz

98 %

700 mV to 45 V

10 A

- 40 C

+ 85 C

SMD/SMT

HTSSOP-16

Tube

Switching Controllers Wide Input Sync Buck Cntrlr source/sink A 595-TPS40061PWPR

TPS40061PWP
Texas Instruments
1: 40,21 kr.
107In Stock

Mfr. Part No.
TPS40061PWP

Mouser Part No
595-TPS40061PWP

Texas Instruments

Switching Controllers Wide Input Sync Buck Cntrlr source/sink A 595-TPS40061PWPR

Datasheet

107In Stock

40,21 kr.

30,88 kr.

28,20 kr.

26,86 kr.

View

Min.: 1
Mult.: 1

Buck

1 Output

100 kHz to 1 MHz

98 %

700 mV to 45 V

10 A

- 40 C

+ 85 C

SMD/SMT

HTSSOP-16

Tube

Buck Converters for Power Over Ethernet

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Support

650 Hz to 80 kHz
35 kHz to 500 kHz
50 kHz to 1 MHz
50 kHz to 500 kHz
50 kHz to 750 kHz
60 kHz
65 kHz
70 kHz
70 kHz to 130 kHz
100 kHz
100 kHz to 1 MHz
100 kHz to 1.6 MHz
100 kHz to 2.2 MHz
100 kHz to 2.5 MHz
100 kHz to 2.64 MHz
100 kHz to 3.2 MHz
100 kHz to 500 kHz
100 kHz to 700 kHz
110 kHz
115 kHz

80 %
81 %
82 %
83 %
85 %
86 %
87.5 %
88 %
89 %
90 %
91 %
92 %
93 %
95 %
96 %
97 %
98 %
98.75 %
99 %
99.5 %

100 mV to 100 V
300 mV to 16 V
400 mV to 2.5 V
500 mV
500 mV to 3.6 V
591 mV
591 mV to 14.4 V
591 mV to 17 V
600 mV
600 mV to 12.75 V
600 mV to 13.5 V
600 mV to 17 V
600 mV to 18 V
600 mV to 18.6 V
600 mV to 19 V
600 mV to 28 V
600 mV to 3.6 V
600 mV to 30 V
600 mV to 4.95 V
600 mV to 5 V

13.2 uA
52.5 uA
130 uA
200 uA
800 uA
1 mA
2 mA
4 mA
6 mA
8 mA
20 mA
25 mA
30 mA
37 mA
40 mA
50 mA
80 mA
100 mA
120 mA
150 mA

CFP-8
CPAK-20
DFN-10
DFNW-10
DIP-7
DIP-8
eTSSOP-16
HTQFP-48
HTSSOP-14
HTSSOP-16
HTSSOP-20
HTSSOP-38
LLP-8
LQFP-48
MLF-12
MLF-16
MLF-32
MSOP-10
MSOP-8
MSOP-PowerPad-10