Switching Controllers – Mouser Singapore

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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 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D

LTC3884IUK#PBF
Analog Devices
1: $26.28
155In Stock

Mfr. Part No.
LTC3884IUK#PBF

Mouser Part No
584-LTC3884IUK#PBF

Analog Devices

Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D

Learn More

Datasheet

155In Stock

$26.28

$20.66

$18.36

$17.53

View

Min.: 1
Mult.: 1

Buck

1 Output

1 MHz

80 %

500 mV to 5.5 V

30 A

- 40 C

+ 125 C

SMD/SMT

QFN-48

Tube

Switching Controllers 150V Low IQ Step-Dwn DC/DC Ctlr

LTC3894EFE#TRPBF
Analog Devices
1: $11.45
848In Stock

Mfr. Part No.
LTC3894EFE#TRPBF

Mouser Part No
584-LTC3894EFE#TRPBF

Analog Devices

Switching Controllers 150V Low IQ Step-Dwn DC/DC Ctlr

Learn More

Datasheet

848In Stock

Cut Tape

$11.45

$8.88

$8.23

$7.52

View

Reel

$6.43

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Buck

1 Output

50 kHz to 850 kHz

100 %

800 mV to 60 V

- 40 C

+ 125 C

SMD/SMT

TSSOP-20-16

Reel, Cut Tape, MouseReel

Switching Controllers 150V L IQ, Sync Buck DC/DC Cntr

LTC7801HFE#PBF
Analog Devices
1: $25.35
399In Stock
868Expected 11/3/2027

Mfr. Part No.
LTC7801HFE#PBF

Mouser Part No
584-LTC7801HFEPBF

Analog Devices

Switching Controllers 150V L IQ, Sync Buck DC/DC Cntr

Datasheet

399In Stock

868Expected 11/3/2027

$25.35

$20.16

$18.58

$17.26

View

Min.: 1
Mult.: 1

Buck

1 Output

50 kHz to 900 kHz

100 %

800 mV to 60 V

65 uA

- 40 C

+ 150 C

SMD/SMT

TSSOP-24

Tube

Switching Controllers 150V L IQ, Sync Buck DC/DC Cntr

LTC7801IFE#TRPBF
Analog Devices
1: $21.32
1,256In Stock

Mfr. Part No.
LTC7801IFE#TRPBF

Mouser Part No
584-LTC7801IFETRPBF

Analog Devices

Switching Controllers 150V L IQ, Sync Buck DC/DC Cntr

Datasheet

1,256In Stock

Cut Tape

$21.32

$16.73

$15.61

$14.42

Reel

$12.44

Quote

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Buck

1 Output

50 kHz to 900 kHz

100 %

800 mV to 60 V

10 A

- 40 C

+ 125 C

SMD/SMT

TSSOP-24

Reel, Cut Tape, MouseReel

Switching Controllers 150V L IQ, Sync Buck DC/DC Cntr

LTC7801IUFD#PBF
Analog Devices
1: $20.16
1,041In Stock

Mfr. Part No.
LTC7801IUFD#PBF

Mouser Part No
584-LTC7801IUFDPBF

Analog Devices

Switching Controllers 150V L IQ, Sync Buck DC/DC Cntr

Datasheet

1,041In Stock

$20.16

$15.91

$13.93

$13.44

View

Min.: 1
Mult.: 1

Buck

1 Output

50 kHz to 900 kHz

100 %

800 mV to 60 V

10 A

- 40 C

+ 125 C

SMD/SMT

QFN-24

Tube

Switching Controllers L IQ, 60V Sync Boost+Buck Cntr

LTC7813IUH#PBF
Analog Devices
1: $22.90
136In Stock

Mfr. Part No.
LTC7813IUH#PBF

Mouser Part No
584-LTC7813IUH#PBF

Analog Devices

Switching Controllers L IQ, 60V Sync Boost+Buck Cntr

Learn More

Datasheet

136In Stock

$22.90

$18.17

$15.93

$15.71

View

Min.: 1
Mult.: 1

Boost, Buck

2 Output

850 kHz

100 %

800 mV to 60 V

20 A

- 40 C

+ 125 C

SMD/SMT

QFN-32

Tube

Switching Controllers 6V to 42V Synchronou s Buck DC-DC Contro A 595-LM25145RGYT

LM25145RGYR
Texas Instruments
1: $2.87
2,362In Stock

Mfr. Part No.
LM25145RGYR

Mouser Part No
595-LM25145RGYR

Texas Instruments

Switching Controllers 6V to 42V Synchronou s Buck DC-DC Contro A 595-LM25145RGYT

Learn More

Datasheet

2,362In Stock

Cut Tape

$2.87

$2.35

$2.23

$2.09

View

Reel

$1.88

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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 High Perf Sync Buck Controller A 595-LM2 A 595-LM27403SQE/NOPB

LM27403SQ/NOPB
Texas Instruments
1: $5.41
1,948In Stock

Mfr. Part No.
LM27403SQ/NOPB

Mouser Part No
595-LM27403SQ/NOPB

Texas Instruments

Switching Controllers High Perf Sync Buck Controller A 595-LM2 A 595-LM27403SQE/NOPB

Learn More

Datasheet

1,948In Stock

Cut Tape

$5.41

$4.09

$3.77

$3.40

Reel

$2.95

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Buck

1 Output

1.05 MHz

93 %

600 mV to 19 V

30 A

- 40 C

+ 125 C

SMD/SMT

WQFN-24

Reel, Cut Tape, MouseReel

Switching Controllers High Perf Sync Buck Cntlr A 595-LM27403S A 595-LM27403SQ/NOPB

LM27403SQE/NOPB
Texas Instruments
1: $5.41
3,304In Stock

Mfr. Part No.
LM27403SQE/NOPB

Mouser Part No
595-LM27403SQE/NOPB

Texas Instruments

Switching Controllers High Perf Sync Buck Cntlr A 595-LM27403S A 595-LM27403SQ/NOPB

Learn More

Datasheet

3,304In Stock

Cut Tape

$5.41

$4.09

$3.77

$3.40

Reel

$3.21

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Buck

1 Output

1.05 MHz

93 %

600 mV to 19 V

25 A

- 40 C

+ 125 C

SMD/SMT

WQFN-24

Reel, Cut Tape, MouseReel

Switching Controllers Low Iq Wide Input R ange Synchronous Buc A 595-LM5141RGET

LM5141RGER
Texas Instruments
1: $7.51
1,205In Stock

Mfr. Part No.
LM5141RGER

Mouser Part No
595-LM5141RGER

Texas Instruments

Switching Controllers Low Iq Wide Input R ange Synchronous Buc A 595-LM5141RGET

Learn More

Datasheet

1,205In Stock

Cut Tape

$7.51

$5.73

$5.28

$4.79

View

Reel

$4.18

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

AEC-Q100

Reel, Cut Tape, MouseReel

Switching Controllers Automotive 75-V sync hronous buck DC/DC

LM5145QRGYRQ1
Texas Instruments
1: $7.06
986In Stock

Mfr. Part No.
LM5145QRGYRQ1

Mouser Part No
595-LM5145QRGYRQ1

Texas Instruments

Switching Controllers Automotive 75-V sync hronous buck DC/DC

Learn More

Datasheet

986In Stock

Cut Tape

$7.06

$5.34

$4.91

$4.45

View

Reel

$3.71

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Buck

1 Output

100 kHz to 1 MHz

99 %

800 mV to 60 V

30 A

- 40 C

+ 150 C

SMD/SMT

VQFN-20

Reel, Cut Tape, MouseReel

Switching Controllers 75V Synchronous Buck Controller With Wid A 595-LM5145RGYR

LM5145RGYT
Texas Instruments
1: $7.19
3,376In Stock

Mfr. Part No.
LM5145RGYT

Mouser Part No
595-LM5145RGYT

Texas Instruments

Switching Controllers 75V Synchronous Buck Controller With Wid A 595-LM5145RGYR

Learn More

Datasheet

3,376In Stock

Cut Tape

$7.19

$5.48

$5.06

$4.58

Reel

$4.35

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Buck

1 Output

100 kHz to 1 MHz

99 %

800 mV to 60 V

30 A

- 40 C

+ 125 C

SMD/SMT

VQFN-20

Reel, Cut Tape, MouseReel

Switching Controllers Multiphase bidirecti onal current contro A 595-LM5170QPHPRQ1

LM5170QPHPTQ1
Texas Instruments
1: $23.00
136In Stock
250Expected 7/9/2026

Mfr. Part No.
LM5170QPHPTQ1

Mouser Part No
595-LM5170QPHPTQ1

Texas Instruments

Switching Controllers Multiphase bidirecti onal current contro A 595-LM5170QPHPRQ1

Datasheet

136In Stock

250Expected 7/9/2026

Cut Tape

$23.00

$18.24

$17.05

$16.14

Reel

$15.06

$14.54

MouseReel Available

Min.: 1
Mult.: 1

: 250

Boost, Buck

2 Output

50 kHz to 500 kHz

100 %

100 mV to 100 V

50 A

- 40 C

+ 150 C

SMD/SMT

HTQFP-48

AEC-Q100

Reel, Cut Tape, MouseReel

Switching Controllers Wide Inp Non-Sync Bu ck DC/DC Cntrlr A 5 A 595-TPS40200D

TPS40200DR
Texas Instruments
1: $3.36
1,765In Stock
2,500Expected 28/12/2026

Mfr. Part No.
TPS40200DR

Mouser Part No
595-TPS40200DR

Texas Instruments

Switching Controllers Wide Inp Non-Sync Bu ck DC/DC Cntrlr A 5 A 595-TPS40200D

Datasheet

1,765In Stock

2,500Expected 28/12/2026

Cut Tape

$3.36

$2.50

$2.28

$2.04

Reel

$1.73

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Buck

1 Output

35 kHz to 500 kHz

95 %

700 mV to 46 V

3 A

- 40 C

+ 85 C

SMD/SMT

SOIC-8

Reel, Cut Tape, MouseReel

Switching Controllers Wide Inp Non-Synch B uck DC/DC Cntrlr A A 595-TPS40200DRBT

TPS40200DRBR
Texas Instruments
1: $3.11
3,160In Stock

Mfr. Part No.
TPS40200DRBR

Mouser Part No
595-TPS40200DRBR

Texas Instruments

Switching Controllers Wide Inp Non-Synch B uck DC/DC Cntrlr A A 595-TPS40200DRBT

Datasheet

3,160In Stock

Cut Tape

$3.11

$2.35

$2.16

$1.96

Reel

$1.77

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Buck

1 Output

35 kHz to 500 kHz

95 %

700 mV to 46 V

3 A

- 40 C

+ 85 C

SMD/SMT

SON-8

Reel, Cut Tape, MouseReel

Switching Controllers Mil Enhanced Nonsync Vltg-Mode Cntrlr

TPS40200MDREP
Texas Instruments
1: $8.21
1,944In Stock

Mfr. Part No.
TPS40200MDREP

Mouser Part No
595-TPS40200MDREP

Texas Instruments

Switching Controllers Mil Enhanced Nonsync Vltg-Mode Cntrlr

Datasheet

Product Comments

1,944In Stock

Cut Tape

$8.21

$6.26

$5.77

$5.22

View

Reel

$4.71

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Buck

1 Output

35 kHz to 500 kHz

95 %

700 mV to 46 V

3 A

- 55 C

+ 125 C

SMD/SMT

SOIC-8

Reel, Cut Tape, MouseReel

Switching Controllers Wide-Inp-Rng Nonsync Vltg-Mode Cntrlr

TPS40200QDRQ1
Texas Instruments
1: $3.86
2,051In Stock

Mfr. Part No.
TPS40200QDRQ1

Mouser Part No
595-TPS40200QDRQ1

Texas Instruments

Switching Controllers Wide-Inp-Rng Nonsync Vltg-Mode Cntrlr

Datasheet

2,051In Stock

Cut Tape

$3.86

$2.90

$2.65

$2.38

Reel

$2.03

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Buck

1 Output

35 kHz to 500 kHz

95 %

700 mV to 46 V

3 A

- 40 C

+ 125 C

SMD/SMT

SOIC-8

AEC-Q100

Reel, Cut Tape, MouseReel

Switching Controllers 3-20V Wide Input Syn ch Buck Cntrlr A 59 A 595-TPS40304DRCT

TPS40304DRCR
Texas Instruments
1: $3.22
3,915In Stock

Mfr. Part No.
TPS40304DRCR

Mouser Part No
595-TPS40304DRCR

Texas Instruments

Switching Controllers 3-20V Wide Input Syn ch Buck Cntrlr A 59 A 595-TPS40304DRCT

Datasheet

3,915In Stock

Cut Tape

$3.22

$2.39

$2.19

$1.96

Reel

$1.65

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Buck

1 Output

600 kHz

90 %

600 mV to 18 V

25 A

- 40 C

+ 125 C

SMD/SMT

VSON-10

Reel, Cut Tape, MouseReel

Switching Controllers Fixed-Freq Notebook Sys Pwr Controller A A 595-TPS51220ARTVT

TPS51220ARTVR
Texas Instruments
1: $5.83
2,405In Stock

Mfr. Part No.
TPS51220ARTVR

Mouser Part No
595-TPS51220ARTVR

Texas Instruments

Switching Controllers Fixed-Freq Notebook Sys Pwr Controller A A 595-TPS51220ARTVT

Datasheet

2,405In Stock

Cut Tape

$5.83

$4.42

$4.07

$3.67

View

Reel

$3.16

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Buck

2 Output

200 kHz to 1 MHz

99 %

1 V to 12 V

20 A

- 40 C

+ 85 C

SMD/SMT

WQFN-32

Reel, Cut Tape, MouseReel

Switching Controllers Triple Sync Buck w/L DO Controller A 595 A 595-TPS5130PT

TPS5130PTR
Texas Instruments
1: $11.79
999In Stock

Mfr. Part No.
TPS5130PTR

Mouser Part No
595-TPS5130PTR

Texas Instruments

Switching Controllers Triple Sync Buck w/L DO Controller A 595 A 595-TPS5130PT

Datasheet

999In Stock

Cut Tape

$11.79

$9.13

$8.47

$7.74

Reel

$6.80

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Buck

4 Output

50 kHz to 500 kHz

97 %

900 mV to 8.5 V

15 A

- 40 C

+ 85 C

SMD/SMT

LQFP-48

Reel, Cut Tape, MouseReel

Switching Controllers 3-V to 26-V 20-A s y nchronous D-CAP buc A 595-TPS53119RGTR

TPS53119RGTT
Texas Instruments
1: $4.03
2,704In Stock

Mfr. Part No.
TPS53119RGTT

Mouser Part No
595-TPS53119RGTT

Texas Instruments

Switching Controllers 3-V to 26-V 20-A s y nchronous D-CAP buc A 595-TPS53119RGTR

Learn More

Datasheet

2,704In Stock

Cut Tape

$4.03

$3.02

$2.76

$2.48

Reel

$2.33

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Buck

1 Output

970 kHz

90 %

600 mV to 5.5 V

20 A

- 20 C

+ 85 C

SMD/SMT

VQFN-16

Reel, Cut Tape, MouseReel

Switching Controllers High Speed PWM Contr oller A 595-UC2823A A 595-UC2823ADWTR

UC2823ADW
Texas Instruments
1: $37.33
111In Stock

Mfr. Part No.
UC2823ADW

Mouser Part No
595-UC2823ADW

Texas Instruments

Switching Controllers High Speed PWM Contr oller A 595-UC2823A A 595-UC2823ADWTR

Datasheet

111In Stock

$37.33

$30.07

$27.23

$25.55

View

Min.: 1
Mult.: 1

Boost, Buck, Flyback, Forward

1 Output

1 MHz

100 %

5.1 V

2 A

- 40 C

+ 85 C

SMD/SMT

SOIC-16

Tube

Switching Controllers High Speed PWM Contr oller A 595-UC3823B A 595-UC3823BDWTR

UC3823BDW
Texas Instruments
1: $47.16
105In Stock

Mfr. Part No.
UC3823BDW

Mouser Part No
595-UC3823BDW

Texas Instruments

Switching Controllers High Speed PWM Contr oller A 595-UC3823B A 595-UC3823BDWTR

Datasheet

105In Stock

$47.16

$38.27

$35.10

$34.65

View

Min.: 1
Mult.: 1

Boost, Buck, Flyback, Forward

1 Output

1 MHz

100 %

5.1 V

2 A

0 C

+ 70 C

SMD/SMT

SOIC-16

Tube

Switching Controllers Low-Power BiCMOS Cur rent-Mode PWM A 595 A 595-UCC3803D

UCC3803DTR
Texas Instruments
1: $3.43
1,236In Stock

Mfr. Part No.
UCC3803DTR

Mouser Part No
595-UCC3803DTR

Texas Instruments

Switching Controllers Low-Power BiCMOS Cur rent-Mode PWM A 595 A 595-UCC3803D

Datasheet

1,236In Stock

Cut Tape

$3.43

$2.54

$2.33

$2.08

Reel

$1.77

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 BiCMOS Advanced Phas e Shift A 595-UCC38 A 595-UCC3895DWTR

UCC3895DW
Texas Instruments
1: $11.45
286In Stock

Mfr. Part No.
UCC3895DW

Mouser Part No
595-UCC3895DW

Texas Instruments

Switching Controllers BiCMOS Advanced Phas e Shift A 595-UCC38 A 595-UCC3895DWTR

Datasheet

286In Stock

$11.45

$8.88

$8.23

$7.51

View

Min.: 1
Mult.: 1

Boost, Buck

4 Output

1 MHz

100 %

5 V

100 mA

0 C

+ 70 C

SMD/SMT

SOIC-20

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 300 kHz
50 kHz to 500 kHz
50 kHz to 750 kHz
50 kHz to 850 kHz
50 kHz to 900 kHz
60 kHz
65 kHz
70 kHz
70 kHz to 130 kHz
80 kHz to 600 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 MHz

80 %
81 %
82 %
83 %
84 %
85 %
86 %
87.5 %
88 %
89 %
90 %
91 %
92 %
93 %
95 %
96 %
97 %
98 %
98.75 %
99 %

0 V to 60 V
100 mV to 100 V
300 mV to 16 V
400 mV to 2.5 V
400 mV to 4.73 V
500 mV
500 mV to 1.27 V
500 mV to 3.6 V
500 mV to 5.25 V
500 mV to 5.5 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

1 uA
13.2 uA
52.5 uA
65 uA
105 uA
130 uA
180 uA
200 uA
800 uA
1 mA
2 mA
4 mA
5 mA
6 mA
8 mA
20 mA
25 mA
30 mA
37 mA
40 mA

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