Switching Controllers – Mouser United Kingdom

.hide-partial { max-height: none; } .show-more { display: none; }

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.

Learn More

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 773

Applied Filters:

Manufacturer

Topology

Number of Outputs

Switching Frequency

Duty Cycle - Max

Input Voltage

Output Voltage

Output Current

Minimum Operating Temperature

Maximum Operating Temperature

Mounting Style

Package/Case

Qualification

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

Switching Controllers 75V, Synchronous Buck Controller Featuring Adaptive On-Time Control with External Soft Start

MIC2128YML-TR
Microchip Technology
1: £1.16
5,204In Stock

Mfr. Part No.
MIC2128YML-TR

Mouser Part No
579-MIC2128YML-TR

Microchip Technology

Switching Controllers 75V, Synchronous Buck Controller Featuring Adaptive On-Time Control with External Soft Start

Learn More

Datasheet

5,204In Stock

Cut Tape

£1.16

£1.15

£1.06

£1.05

Reel

£0.986

View

Min.: 1
Mult.: 1

: 5,000

Buck

1 Output

270 kHz to 800 kHz

85 %

600 mV to 30 V

- 40 C

+ 125 C

SMD/SMT

VQFN-16

Reel, Cut Tape

Switching Controllers Hi Speed C Mode Pulse Width Mods

LT1243CN8#PBF
Analog Devices
1: £5.46
336In Stock

Mfr. Part No.
LT1243CN8#PBF

Mouser Part No
584-LT1243CN8#PBF

Analog Devices

Switching Controllers Hi Speed C Mode Pulse Width Mods

Datasheet

336In Stock

£5.46

£4.12

£3.70

£3.54

View

Min.: 1
Mult.: 1

Buck

1 Output

500 kHz

96 %

5 V

1 A

0 C

+ 100 C

Through Hole

PDIP-8

Tube

Switching Controllers Hi Speed C Mode Pulse Width Mods

LT1244IS8#PBF
Analog Devices
1: £6.75
355In Stock

Mfr. Part No.
LT1244IS8#PBF

Mouser Part No
584-LT1244IS8#PBF

Analog Devices

Switching Controllers Hi Speed C Mode Pulse Width Mods

Datasheet

355In Stock

£6.75

£5.24

£4.76

£4.38

View

Min.: 1
Mult.: 1

Buck

1 Output

500 kHz

96 %

5 V

1 A

- 40 C

+ 100 C

SMD/SMT

SOIC-8

Tube

Switching Controllers Hi Pwr Sync DC/DC Cntr

LT1339CSW#PBF
Analog Devices
1: £13.66
128In Stock

Mfr. Part No.
LT1339CSW#PBF

Mouser Part No
584-LT1339CSW#PBF

Analog Devices

Switching Controllers Hi Pwr Sync DC/DC Cntr

Datasheet

128In Stock

£13.66

£10.62

£9.38

£9.09

View

Min.: 1
Mult.: 1

Boost, Buck

1 Output

150 kHz

90 %

Adjustable

30 A

0 C

+ 70 C

SMD/SMT

SOIC-20

Tube

Switching Controllers PP, Hi Eff, Sync Buck Sw Reg

LTC1629IG#PBF
Analog Devices
1: £18.50
635In Stock

Mfr. Part No.
LTC1629IG#PBF

Mouser Part No
584-LTC1629IG#PBF

Analog Devices

Switching Controllers PP, Hi Eff, Sync Buck Sw Reg

Datasheet

635In Stock

£18.50

£14.83

£13.42

£12.74

View

Min.: 1
Mult.: 1

Buck

2 Output

300 kHz

99 %

1.26 V to 2.5 V

240 A

- 40 C

+ 85 C

SMD/SMT

SSOP-28

Tube

Switching Controllers Low IQ Triple Output Buck-Buck-Boost CTL

LTC7811IUJ#PBF
Analog Devices
1: £7.32
485In Stock

Mfr. Part No.
LTC7811IUJ#PBF

Mouser Part No
584-LTC7811IUJ#PBF

Analog Devices

Switching Controllers Low IQ Triple Output Buck-Buck-Boost CTL

Learn More

Datasheet

485In Stock

£7.32

£5.71

£4.99

£4.80

View

Min.: 1
Mult.: 1

Boost, Buck

3 Output

100 kHz to 3 MHz

100 %

800 mV to 40 V

20 A

- 40 C

+ 125 C

SMD/SMT

QFN-40

Tube

Switching Controllers 16V Step-Down DCDC Controller

XC9221A09AMR-G
Torex Semiconductor
1: £1.02
2,750In Stock

Mfr. Part No.
XC9221A09AMR-G

Mouser Part No
865-XC9221A09AMR-G

Torex Semiconductor

Switching Controllers 16V Step-Down DCDC Controller

Learn More

Datasheet

2,750In Stock

Cut Tape

£1.02

£0.742

£0.668

£0.601

Reel

£0.496

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Buck

1 Output

1 MHz

100 %

1.2 V

3 A

- 40 C

+ 85 C

SMD/SMT

SOT-25-5

Reel, Cut Tape, MouseReel

Switching Controllers 4.5-42V Wide Vin Co nstant On-Time Non-S A 926-LM25085SDE/NOPB

LM25085SD/NOPB
Texas Instruments
1: £1.77
3,000In Stock

Mfr. Part No.
LM25085SD/NOPB

Mouser Part No
926-LM25085SD/NOPB

Texas Instruments

Switching Controllers 4.5-42V Wide Vin Co nstant On-Time Non-S A 926-LM25085SDE/NOPB

Datasheet

3,000In Stock

Cut Tape

£1.77

£1.32

£1.20

£1.08

Reel

£0.871

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Buck

1 Output

1 MHz

100 %

1.25 V to 42 V

1.75 A

- 40 C

+ 125 C

SMD/SMT

LLP-8

Reel, Cut Tape, MouseReel

Switching Controllers High Efficiency High -Side N-Channel Con A 926-LM3477AMMX/NOPB

LM3477AMM/NOPB
Texas Instruments
1: £2.49
811In Stock

Mfr. Part No.
LM3477AMM/NOPB

Mouser Part No
926-LM3477AMM/NOPB

Texas Instruments

Switching Controllers High Efficiency High -Side N-Channel Con A 926-LM3477AMMX/NOPB

Datasheet

811In Stock

Cut Tape

£2.49

£1.86

£1.71

£1.54

Reel

£1.36

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 High Efficiency High -Side N-Channel Con A 926-LM3477MM/NOPB

LM3477MMX/NOPB
Texas Instruments
1: £2.11
4,032In Stock

Mfr. Part No.
LM3477MMX/NOPB

Mouser Part No
926-LM3477MMX/NOPB

Texas Instruments

Switching Controllers High Efficiency High -Side N-Channel Con A 926-LM3477MM/NOPB

Datasheet

4,032In Stock

Cut Tape

£2.11

£1.58

£1.44

£1.29

View

Reel

£1.01

MouseReel Available

Min.: 1
Mult.: 1

: 3,500

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 38V DC-DC Buck Controller with HLL

MIC2101YML-TR
Microchip Technology
1: £1.10
6,968In Stock

Mfr. Part No.
MIC2101YML-TR

Mouser Part No
998-MIC2101YMLTR

Microchip Technology

Switching Controllers 38V DC-DC Buck Controller with HLL

Datasheet

6,968In Stock

Cut Tape

£1.10

£1.09

£1.05

£1.04

View

Reel

£0.943

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Buck

1 Output

200 kHz to 600 kHz

85 %

800 mV to 24 V

15 A

- 40 C

+ 125 C

SMD/SMT

MLF-16

Reel, Cut Tape, MouseReel

Switching Controllers Monolithic High Speed SMPS Controller

MIC38HC43YM-TR
Microchip Technology
1: £1.42
1,960In Stock

Mfr. Part No.
MIC38HC43YM-TR

Mouser Part No
998-MIC38HC43YMTR

Microchip Technology

Switching Controllers Monolithic High Speed SMPS Controller

Datasheet

1,960In Stock

Cut Tape

£1.42

£1.19

£1.08

Reel

£1.08

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Boost, Buck, Flyback, Forward

1 Output

500 kHz

96 %

5 V

1 A

- 40 C

+ 85 C

SMD/SMT

SOIC-8

Reel, Cut Tape, MouseReel

Switching Controllers COOLSET

ICE5AR3995BZXKLA1
Infineon Technologies
1: £1.25
1,680In Stock

Mfr. Part No.
ICE5AR3995BZXKLA1

Mouser Part No
726-ICE5AR3995BZXKLA

Infineon Technologies

Switching Controllers COOLSET

Learn More

Datasheet

1,680In Stock

£1.25

£0.917

£0.78

£0.739

View

Min.: 1
Mult.: 1

Buck, Flyback

1 Output

65 kHz

80 %

15 V

- 40 C

+ 150 C

Through Hole

DIP-7

Tube

Switching Controllers Digitally enhanced power analog buck controller

MCP19122-E/MJ
Microchip Technology
1: £4.16
359In Stock

Mfr. Part No.
MCP19122-E/MJ

Mouser Part No
579-MCP19122-E/MJ

Microchip Technology

Switching Controllers Digitally enhanced power analog buck controller

Learn More

Datasheet

359In Stock

£4.16

£3.86

£3.71

£3.70

£3.49

Min.: 1
Mult.: 1

Buck

1 Output

100 kHz to 1.6 MHz

100 %

300 mV to 16 V

4 A

- 40 C

+ 125 C

SMD/SMT

QFN-24

Tube

Switching Controllers 3-20V Wide Input Syn ch Buck Cntrlr A 59 A 595-TPS40304DRCR

TPS40304DRCT
Texas Instruments
1: £2.45
4,974In Stock

Mfr. Part No.
TPS40304DRCT

Mouser Part No
595-TPS40304DRCT

Texas Instruments

Switching Controllers 3-20V Wide Input Syn ch Buck Cntrlr A 59 A 595-TPS40304DRCR

Datasheet

4,974In Stock

Cut Tape

£2.45

£1.85

£1.69

£1.53

Reel

£1.43

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

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 4.5-42V Wide Vin Co nstant On-Time Non-S A 926-LM25085AMME/NOPB

LM25085AMM/NOPB
Texas Instruments
1: £2.23
920In Stock

Mfr. Part No.
LM25085AMM/NOPB

Mouser Part No
926-LM25085AMM/NOPB

Texas Instruments

Switching Controllers 4.5-42V Wide Vin Co nstant On-Time Non-S A 926-LM25085AMME/NOPB

Datasheet

920In Stock

Cut Tape

£2.23

£1.67

£1.53

£1.37

Reel

£1.18

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Buck

1 Output

1 MHz

100 %

900 mV to 42 V

1.75 A

- 40 C

+ 125 C

SMD/SMT

VSSOP-8

Reel, Cut Tape, MouseReel

Switching Controllers 2.2-V to 16-V 2-MHz N-channel FET sync A A 926-LM2737MTC/NOPB

LM2737MTCX/NOPB
Texas Instruments
1: £1.75
3,093In Stock

Mfr. Part No.
LM2737MTCX/NOPB

Mouser Part No
926-LM2737MTCX/NOPB

Texas Instruments

Switching Controllers 2.2-V to 16-V 2-MHz N-channel FET sync A A 926-LM2737MTC/NOPB

Datasheet

3,093In Stock

Cut Tape

£1.75

£1.30

£1.18

£1.06

Reel

£0.899

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Buck

1 Output

600 kHz

90 %

600 mV to 5 V

20 A

- 40 C

+ 125 C

SMD/SMT

TSSOP-14

Reel, Cut Tape, MouseReel

Switching Controllers 40V Dual Low IQ, 100 DC Sync Buck CTL

LTC7805RUFDM#PBF
Analog Devices
1: £6.06
1,458In Stock

Mfr. Part No.
LTC7805RUFDM#PBF

Mouser Part No
584-LTC7805RUFDMPBF

Analog Devices

Switching Controllers 40V Dual Low IQ, 100 DC Sync Buck CTL

Learn More

Datasheet

1,458In Stock

£6.06

£4.69

£4.05

£3.88

View

Min.: 1
Mult.: 1

Boost, Buck

2 Output

3 MHz

100 %

800 mV to 40 V

180 uA

- 40 C

+ 150 C

SMD/SMT

QFN-28

Tube

Switching Controllers 40V Dual Low IQ, 100 DC Sync Buck CTL

LTC7805RUFDM#TRPBF
Analog Devices
1: £6.06
8,928In Stock

Mfr. Part No.
LTC7805RUFDM#TRPBF

Mouser Part No
584-LTC7805RUFDMTRPB

Analog Devices

Switching Controllers 40V Dual Low IQ, 100 DC Sync Buck CTL

Learn More

Datasheet

8,928In Stock

Cut Tape

£6.06

£4.70

£4.25

£3.97

View

Reel

£3.40

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Boost, Buck

2 Output

3 MHz

100 %

800 mV to 40 V

180 uA

- 40 C

+ 150 C

SMD/SMT

QFN-28

Reel, Cut Tape, MouseReel

Switching Controllers Wide Input Range Syn c Buck Cntlr A 595- A 595-LM5117QPMHE/NOPB

LM5117QPMH/NOPB
Texas Instruments
1: £6.36
283In Stock

Mfr. Part No.
LM5117QPMH/NOPB

Mouser Part No
595-LM5117QPMH/NOPB

Texas Instruments

Switching Controllers Wide Input Range Syn c Buck Cntlr A 595- A 595-LM5117QPMHE/NOPB

Datasheet

283In Stock

£6.36

£4.92

£4.25

£3.84

View

Min.: 1
Mult.: 1

Buck

1 Output

50 kHz to 750 kHz

98 %

800 mV to 62 V

20 A

- 40 C

+ 125 C

SMD/SMT

HTSSOP-20

AEC-Q100

Tube

Switching Controllers 3-20V Wide Input Syn c Buck Controller A A 595-TPS40305DRCR

TPS40305DRCT
Texas Instruments
1: £2.10
1,838In Stock

Mfr. Part No.
TPS40305DRCT

Mouser Part No
595-TPS40305DRCT

Texas Instruments

Switching Controllers 3-20V Wide Input Syn c Buck Controller A A 595-TPS40305DRCR

Datasheet

1,838In Stock

Cut Tape

£2.10

£1.56

£1.43

£1.28

Reel

£1.13

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Buck

1 Output

1.2 MHz

85 %

600 mV to 17 V

25 A

- 40 C

+ 125 C

SMD/SMT

VSON-10

Reel, Cut Tape, MouseReel

Switching Controllers 40V, High-Performance, Synchronous Buck

MAX15046BAEE+
Analog Devices / Maxim Integrated
1: £4.21
954In Stock

Mfr. Part No.
MAX15046BAEE+

Mouser Part No
700-MAX15046BAEE

Analog Devices / Maxim Integrated

Switching Controllers 40V, High-Performance, Synchronous Buck

Datasheet

954In Stock

£4.21

£3.20

£2.94

£2.57

View

Min.: 1
Mult.: 1

Buck

1 Output

100 kHz to 1 MHz

87.5 %

600 mV to 36 V

25 A

- 40 C

+ 125 C

SMD/SMT

QSOP-16

Tube

Switching Controllers 5V/3.3V or Adjustable, 100 Duty Cycle,

MAX1626ESA+T
Analog Devices / Maxim Integrated
1: £3.95
2,404In Stock

Mfr. Part No.
MAX1626ESA+T

Mouser Part No
700-MAX1626ESAT

Analog Devices / Maxim Integrated

Switching Controllers 5V/3.3V or Adjustable, 100 Duty Cycle,

Datasheet

2,404In Stock

Cut Tape

£3.95

£3.01

£2.72

£2.51

View

Reel

£2.20

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Buck

1 Output

300 kHz

100 %

3.3 V, 5 V

3 A

- 40 C

+ 85 C

SMD/SMT

SOIC-Narrow-8

Reel, Cut Tape, MouseReel

Switching Controllers Dual-Output Step-Down DC-DC Converter fo

MAX1775EEE+
Analog Devices / Maxim Integrated
1: £8.63
539In Stock

Mfr. Part No.
MAX1775EEE+

Mouser Part No
700-MAX1775EEE

Analog Devices / Maxim Integrated

Switching Controllers Dual-Output Step-Down DC-DC Converter fo

Datasheet

539In Stock

£8.63

£6.77

£6.30

£5.20

View

Min.: 1
Mult.: 1

Buck

2 Output

1.25 MHz

100 %

500 mV to 5.5 V

2 A

- 40 C

+ 85 C

SMD/SMT

QSOP-16

Tube

Switching Controllers 75V DC-DC Buck Controller with HLL

MIC2103YML-TR
Microchip Technology
1: £1.40
1,616In Stock

Mfr. Part No.
MIC2103YML-TR

Mouser Part No
998-MIC2103YMLTR

Microchip Technology

Switching Controllers 75V DC-DC Buck Controller with HLL

Datasheet

1,616In Stock

Cut Tape

£1.40

Reel

£1.40

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Buck

1 Output

200 kHz to 600 kHz

85 %

800 mV to 24 V

15 A

- 40 C

+ 125 C

SMD/SMT

MLF-16

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 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