Switching Controllers – Mouser Dominican Republic

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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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Results: 566

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Part #

Switching Controllers 3.5-V to 80-V curre nt mode synchronous

LM5148RGYR
Texas Instruments
1: $2.30
6,688In Stock

Mfr. Part #
LM5148RGYR

Mouser Part #
595-LM5148RGYR

Texas Instruments

Switching Controllers 3.5-V to 80-V curre nt mode synchronous

Learn More

Datasheet

6,688In Stock

Cut Tape

$2.30

$1.71

$1.56

$1.40

Reel

$1.17

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Buck

1 Output

2.2 MHz

100 %

800 mV to 55 V

- 40 C

+ 125 C

SMD/SMT

VQFN-24

Reel, Cut Tape, MouseReel

Switching Controllers 80-V synchronous buc k DC/DC controller

LM5149RGYR
Texas Instruments
1: $5.11
2,926In Stock

Mfr. Part #
LM5149RGYR

Mouser Part #
595-LM5149RGYR

Texas Instruments

Switching Controllers 80-V synchronous buc k DC/DC controller

Learn More

Datasheet

2,926In Stock

Cut Tape

$5.11

$3.90

$3.59

$3.26

View

Reel

$2.90

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Buck

1 Output

2.2 MHz

100 %

800 mV to 55 V

20 A

- 40 C

+ 150 C

SMD/SMT

VQFN-24

Reel, Cut Tape, MouseReel

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

UCC28C56HQDRQ1
Texas Instruments
1: $2.52
2,009In Stock

Mfr. Part #
UCC28C56HQDRQ1

Mouser Part #
595-UCC28C56HQDRQ1

Texas Instruments

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

Learn More

Datasheet

2,009In Stock

Cut Tape

$2.52

$1.87

$1.71

$1.53

Reel

$1.29

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Buck, Flyback

1 Output

1 MHz

100 %

15 V

20 mA

- 40 C

+ 125 C

SMD/SMT

Reel, Cut Tape, MouseReel

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

UCC28C58QDRQ1
Texas Instruments
1: $2.52
2,035In Stock

Mfr. Part #
UCC28C58QDRQ1

Mouser Part #
595-UCC28C58QDRQ1

Texas Instruments

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

Learn More

Datasheet

2,035In Stock

Cut Tape

$2.52

$1.87

$1.71

$1.53

Reel

$1.29

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Buck, Flyback

1 Output

1 MHz

100 %

15 V

20 mA

- 40 C

+ 125 C

SMD/SMT

Reel, Cut Tape, MouseReel

Switching Controllers Wide In Non-Synch Bu ck DC/DC Cntrlr A 5 A 595-TPS40200HDR

TPS40200HD
Texas Instruments
1: $147.10
263In Stock
525Expected 10/9/2026

Mfr. Part #
TPS40200HD

Mouser Part #
595-TPS40200HD

Texas Instruments

Switching Controllers Wide In Non-Synch Bu ck DC/DC Cntrlr A 5 A 595-TPS40200HDR

Datasheet

263In Stock

525Expected 10/9/2026

$147.10

$130.42

Min.: 1
Mult.: 1

Buck

1 Output

35 kHz to 500 kHz

100 %

700 mV to 46 V

3 A

- 55 C

+ 210 C

SMD/SMT

SOIC-8

Tube

Switching Controllers 6V to 42V Synchronou s Step-Down Control A 926-LM3150MHE/NOPB

LM3150MHX/NOPB
Texas Instruments
1: $4.39
7,590In Stock

Mfr. Part #
LM3150MHX/NOPB

Mouser Part #
926-LM3150MHX/NOPB

Texas Instruments

Switching Controllers 6V to 42V Synchronou s Step-Down Control A 926-LM3150MHE/NOPB

Learn More

Datasheet

7,590In Stock

Cut Tape

$4.39

$3.32

$3.05

$2.76

View

Reel

$2.37

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Buck

1 Output

1 MHz

96 %

600 mV

12 A

- 40 C

+ 125 C

SMD/SMT

HTSSOP-14

Reel, Cut Tape, MouseReel

Switching Controllers Automotive Grade 4.5 -75V Wide Vin Const A 926-LM5085QMYE/NOPB

LM5085QMYX/NOPB
Texas Instruments
1: $3.33
10,943In Stock

Mfr. Part #
LM5085QMYX/NOPB

Mouser Part #
926-LM5085QMYX/NOPB

Texas Instruments

Switching Controllers Automotive Grade 4.5 -75V Wide Vin Const A 926-LM5085QMYE/NOPB

Datasheet

10,943In Stock

Cut Tape

$3.33

$2.50

$2.29

$2.06

View

Reel

$1.76

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

AEC-Q100

Reel, Cut Tape, MouseReel

Switching Controllers Wide Input Range Syn Buck Controller A 5 A 595-LM25141RGER

LM25141RGET
Texas Instruments
1: $6.31
488In Stock

Mfr. Part #
LM25141RGET

Mouser Part #
595-LM25141RGET

Texas Instruments

Switching Controllers Wide Input Range Syn Buck Controller A 5 A 595-LM25141RGER

Learn More

Datasheet

488In Stock

Cut Tape

$6.31

$4.84

$4.63

$4.21

Reel

$4.02

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Buck

1 Output

440 kHz, 2.2 MHz

99 %

3.3 V, 5 V, 1.5 V to 15 V

20 A

- 40 C

+ 125 C

SMD/SMT

VQFN-24

Reel, Cut Tape, MouseReel

Switching Controllers 6V to 42V Synchronou s Buck DC-DC Contro A 595-LM25145RGYR

LM25145RGYT
Texas Instruments
1: $3.32
1,340In Stock

Mfr. Part #
LM25145RGYT

Mouser Part #
595-LM25145RGYT

Texas Instruments

Switching Controllers 6V to 42V Synchronou s Buck DC-DC Contro A 595-LM25145RGYR

Learn More

Datasheet

1,340In Stock

Cut Tape

$3.32

$2.49

$2.29

$2.06

Reel

$1.94

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Buck

1 Output

100 kHz to 1 MHz

99 %

800 mV to 40 V

30 A

- 40 C

+ 125 C

SMD/SMT

VQFN-20

Reel, Cut Tape, MouseReel

Switching Controllers Wide Input Range Syn c Buck Cntlr A 595- A 595-LM5117PSQE/NOPB

LM5117PSQ/NOPB
Texas Instruments
1: $7.46
1,087In Stock

Mfr. Part #
LM5117PSQ/NOPB

Mouser Part #
595-LM5117PSQ/NOPB

Texas Instruments

Switching Controllers Wide Input Range Syn c Buck Cntlr A 595- A 595-LM5117PSQE/NOPB

Datasheet

1,087In Stock

Cut Tape

$7.46

$5.76

$5.33

$4.86

Reel

$4.36

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Buck

1 Output

50 kHz to 750 kHz

98 %

800 mV to 62 V

20 A

- 40 C

+ 125 C

SMD/SMT

WQFN-24

Reel, Cut Tape, MouseReel

Switching Controllers Wide Input Freq Sync h Buck Cntrlr A 595 A 595-TPS40060PWP

TPS40060PWPR
Texas Instruments
1: $6.44
1,409In Stock

Mfr. Part #
TPS40060PWPR

Mouser Part #
595-TPS40060PWPR

Texas Instruments

Switching Controllers Wide Input Freq Sync h Buck Cntrlr A 595 A 595-TPS40060PWP

Datasheet

1,409In Stock

Cut Tape

$6.44

$4.94

$4.56

$4.15

View

Reel

$3.70

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Buck

1 Output

100 kHz to 1 MHz

98 %

700 mV to 45 V

10 A

- 40 C

+ 85 C

SMD/SMT

HTSSOP-16

Reel, Cut Tape, MouseReel

Switching Controllers AC 4.5-60V Wide-Inp Sync PWM Buck Cntrlr

TPS40170QRGYRQ1
Texas Instruments
1: $7.99
1,528In Stock
6,000Expected 10/16/2026

Mfr. Part #
TPS40170QRGYRQ1

Mouser Part #
595-TPS40170QRGYRQ1

Texas Instruments

Switching Controllers AC 4.5-60V Wide-Inp Sync PWM Buck Cntrlr

Datasheet

1,528In Stock

6,000Expected 10/16/2026

Cut Tape

$7.99

$6.16

$5.70

$5.20

$5.04

Reel

$4.27

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Buck

1 Output

100 kHz to 1 MHz

95 %

600 mV to 57 V

20 A

- 40 C

+ 125 C

SMD/SMT

VQFN-20

AEC-Q100

Reel, Cut Tape, MouseReel

Switching Controllers 4.5-60V Wide-Inp Syn PWM Buck Controller A 595-TPS40170RGYT

TPS40170RGYR
Texas Instruments
1: $6.75
1,520In Stock

Mfr. Part #
TPS40170RGYR

Mouser Part #
595-TPS40170RGYR

Texas Instruments

Switching Controllers 4.5-60V Wide-Inp Syn PWM Buck Controller A 595-TPS40170RGYT

Datasheet

1,520In Stock

Cut Tape

$6.75

$5.18

$4.79

$4.36

View

Reel

$3.85

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Buck

1 Output

100 kHz to 1 MHz

95 %

600 mV to 57 V

20 A

- 40 C

+ 125 C

SMD/SMT

VQFN-20

Reel, Cut Tape, MouseReel

Switching Controllers 4.5-60V Wide-Inp Syn PWM Buck Controller A 595-TPS40170RGYR

TPS40170RGYT
Texas Instruments
1: $8.03
2,641In Stock

Mfr. Part #
TPS40170RGYT

Mouser Part #
595-TPS40170RGYT

Texas Instruments

Switching Controllers 4.5-60V Wide-Inp Syn PWM Buck Controller A 595-TPS40170RGYR

Datasheet

2,641In Stock

Cut Tape

$8.03

$6.22

$5.76

$5.26

Reel

$4.90

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Buck

1 Output

100 kHz to 1 MHz

95 %

600 mV to 57 V

20 A

- 40 C

+ 125 C

SMD/SMT

VQFN-20

Reel, Cut Tape, MouseReel

Switching Controllers Low Pin Count Sync B uck DC/DC Cntrlr A A 595-TPS40190DRCT

TPS40190DRCR
Texas Instruments
1: $2.27
11,158In Stock

Mfr. Part #
TPS40190DRCR

Mouser Part #
595-TPS40190DRCR

Texas Instruments

Switching Controllers Low Pin Count Sync B uck DC/DC Cntrlr A A 595-TPS40190DRCT

Datasheet

11,158In Stock

Cut Tape

$2.27

$1.68

$1.53

$1.37

Reel

$1.11

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Buck

1 Output

300 kHz

85 %

600 mV to 12.75 V

20 A

- 40 C

+ 85 C

SMD/SMT

VSON-10

Reel, Cut Tape, MouseReel

Switching Controllers 4.5V-8V Input Synch Buck Contr A 595-TPS A 595-TPS40193DRCT

TPS40193DRCR
Texas Instruments
1: $3.37
823In Stock

Mfr. Part #
TPS40193DRCR

Mouser Part #
595-TPS40193DRCR

Texas Instruments

Switching Controllers 4.5V-8V Input Synch Buck Contr A 595-TPS A 595-TPS40193DRCT

Datasheet

823In Stock

Cut Tape

$3.37

$2.54

$2.33

$2.10

View

Reel

$1.74

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Buck

1 Output

300 kHz

85 %

591 mV to 14.4 V

20 A

- 40 C

+ 85 C

SMD/SMT

VSON-10

Reel, Cut Tape, MouseReel

Switching Controllers 3.0-20V PMBus Sync B uck Controller A 59 A 595-TPS40400RHLT

TPS40400RHLR
Texas Instruments
1: $5.27
1,681In Stock

Mfr. Part #
TPS40400RHLR

Mouser Part #
595-TPS40400RHLR

Texas Instruments

Switching Controllers 3.0-20V PMBus Sync B uck Controller A 59 A 595-TPS40400RHLT

Datasheet

1,681In Stock

Cut Tape

$5.27

$4.01

$3.70

$3.35

$3.29

Reel

$2.79

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Buck

1 Output

200 kHz to 2 MHz

90 %

600 mV

20 A

- 40 C

+ 125 C

SMD/SMT

VQFN-24

Reel, Cut Tape, MouseReel

Switching Controllers Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64203DBVT

TPS64203DBVR
Texas Instruments
1: $1.62
7,212In Stock

Mfr. Part #
TPS64203DBVR

Mouser Part #
595-TPS64203DBVR

Texas Instruments

Switching Controllers Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64203DBVT

Datasheet

7,212In Stock

Cut Tape

$1.62

$1.21

$1.11

$0.998

Reel

$0.874

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Buck

1 Output

800 kHz

100 %

1.2 V to 6.5 V

3 A

- 40 C

+ 85 C

SMD/SMT

SOT-23-6

Reel, Cut Tape, MouseReel

Switching Controllers Current Mode

UC3842AN
Texas Instruments
1: $1.91
3,273In Stock

Mfr. Part #
UC3842AN

Mouser Part #
595-UC3842AN

Texas Instruments

Switching Controllers Current Mode

Datasheet

3,273In Stock

$1.91

$1.41

$1.19

$1.13

View

Min.: 1
Mult.: 1

Boost, Buck, Flyback, Forward

1 Output

500 kHz

100 %

5 V

200 mA

0 C

+ 70 C

Through Hole

PDIP-8

Tube

Switching Controllers Current-Mode PWM Con troller A 595-UC384 A 595-UC3843AD8

UC3843AD8TR
Texas Instruments
1: $1.02
4,129In Stock

Mfr. Part #
UC3843AD8TR

Mouser Part #
595-UC3843AD8TR

Texas Instruments

Switching Controllers Current-Mode PWM Con troller A 595-UC384 A 595-UC3843AD8

Datasheet

4,129In Stock

Cut Tape

$1.02

$0.927

Reel

$0.927

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Boost, Buck, Flyback, Forward

1 Output

500 kHz

100 %

5 V

200 mA

0 C

+ 70 C

SMD/SMT

SOIC-8

Reel, Cut Tape, MouseReel

Switching Controllers Low-Power BiCMOS Cur rent-Mode PWM A 595 A 595-UCC3800D

UCC3800DTR
Texas Instruments
1: $2.52
1,236In Stock

Mfr. Part #
UCC3800DTR

Mouser Part #
595-UCC3800DTR

Texas Instruments

Switching Controllers Low-Power BiCMOS Cur rent-Mode PWM A 595 A 595-UCC3800D

Datasheet

1,236In Stock

Cut Tape

$2.52

$1.87

$1.71

$1.53

Reel

$1.30

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Boost, Buck, Flyback, Forward

1 Output

1 MHz

100 %

5 V

1 A

0 C

+ 70 C

SMD/SMT

SOIC-8

Reel, Cut Tape, MouseReel

Switching Controllers Low Power Economy Bi CMOS Current Mode A A 595-UCC3813D-2

UCC3813DTR-2
Texas Instruments
1: $2.21
377In Stock

Mfr. Part #
UCC3813DTR-2

Mouser Part #
595-UCC3813DTR-2

Texas Instruments

Switching Controllers Low Power Economy Bi CMOS Current Mode A A 595-UCC3813D-2

Datasheet

377In Stock

Cut Tape

$2.21

$1.64

$1.49

$1.34

Reel

$1.16

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Boost, Buck, Flyback, Forward

1 Output

1 MHz

100 %

1 A

0 C

+ 70 C

SMD/SMT

SOIC-8

Reel, Cut Tape, MouseReel

Switching Controllers 3-V to 20-V voltage mode synchronous bu A 926-LM27402SQX/NOPB

LM27402SQ/NOPB
Texas Instruments
1: $4.41
Lead-Time 9 Weeks

Mfr. Part #
LM27402SQ/NOPB

Mouser Part #
926-LM27402SQ/NOPB

Texas Instruments

Switching Controllers 3-V to 20-V voltage mode synchronous bu A 926-LM27402SQX/NOPB

Datasheet

Lead-Time 9 Weeks

Cut Tape

$4.41

$3.32

$3.05

$2.75

Reel

$2.44

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Buck

1 Output

200 kHz to 1.2 MHz

95 %

600 mV to 18.6 V

30 A

- 40 C

+ 125 C

SMD/SMT

WQFN-16

Reel, Cut Tape, MouseReel

Switching Controllers High Efficiency High -Side N-Channel Con A 926-LM3477MMX/NOPB

LM3477MM/NOPB
Texas Instruments
1: $3.39
1,138In Stock

Mfr. Part #
LM3477MM/NOPB

Mouser Part #
926-LM3477MM/NOPB

Texas Instruments

Switching Controllers High Efficiency High -Side N-Channel Con A 926-LM3477MMX/NOPB

Datasheet

1,138In Stock

Cut Tape

$3.39

$2.53

$2.31

$2.07

Reel

$1.86

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Buck

1 Output

500 kHz

93 %

1.265 V

6 A

- 40 C

+ 125 C

SMD/SMT

VSSOP-8

Reel, Cut Tape, MouseReel

Switching Controllers HYSTERETIC PFET BUCK CONTROLLER A 926-LM A 926-LM3489MMX/NOPB

LM3489MM/NOPB
Texas Instruments
1: $1.98
4,310In Stock

Mfr. Part #
LM3489MM/NOPB

Mouser Part #
926-LM3489MM/NOPB

Texas Instruments

Switching Controllers HYSTERETIC PFET BUCK CONTROLLER A 926-LM A 926-LM3489MMX/NOPB

Datasheet

4,310In Stock

Cut Tape

$1.98

$1.50

$1.38

$1.24

Reel

$1.09

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Buck

1 Output

1.4 MHz

100 %

1.239 V to 35 V

4 A

- 40 C

+ 125 C

SMD/SMT

VSSOP-8

Reel, Cut Tape, MouseReel

Buck Converters for Power Over Ethernet

Customer Service Office

Company

Resources

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