Switching Controllers – Mouser Finland

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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 Low Power Economy Bi CMOS Current Mode A A 595-UCC3813D-3

UCC3813DTR-3
Texas Instruments
1: 1,90 €
1 983In Stock

Mfr. Part No.
UCC3813DTR-3

Mouser Part No
595-UCC3813DTR-3

Texas Instruments

Switching Controllers Low Power Economy Bi CMOS Current Mode A A 595-UCC3813D-3

Datasheet

1 983In Stock

Cut Tape

1,90 €

1,41 €

1,28 €

1,15 €

Reel

0,963 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 2 500

Boost, Buck, Flyback, Forward

1 Output

1 MHz

100 %

4.1 V

1 A

0 C

+ 70 C

SMD/SMT

SOIC-8

Reel, Cut Tape, MouseReel

Switching Controllers Monolithic SMPS Controller

MIC38C43YM-TR
Microchip Technology
1: 1,10 €
2 182In Stock

Mfr. Part No.
MIC38C43YM-TR

Mouser Part No
998-MIC38C43YMTR

Microchip Technology

Switching Controllers Monolithic SMPS Controller

Datasheet

2 182In Stock

Cut Tape

1,10 €

1,08 €

0,989 €

0,963 €

View

Reel

0,917 €

MouseReel Available

Min.: 1
Mult.: 1

: 2 500

Boost, Buck, Flyback, Forward

1 Output

500 kHz

96 %

5 V

500 mA

- 40 C

+ 85 C

SMD/SMT

SOIC-8

Reel, Cut Tape, MouseReel

Switching Controllers Digitally enhanced power analog buck controller

MCP19122-E/MJ
Microchip Technology
1: 4,77 €
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

4,77 €

4,24 €

3,89 €

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: 2,81 €
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

2,81 €

2,12 €

1,94 €

1,75 €

Reel

1,64 €

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: 2,55 €
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

2,55 €

1,91 €

1,75 €

1,57 €

Reel

1,35 €

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: 2,00 €
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

2,00 €

1,49 €

1,36 €

1,21 €

Reel

1,03 €

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 3-20V Wide Input Syn c Buck Controller A A 595-TPS40305DRCT

TPS40305DRCR
Texas Instruments
1: 2,06 €
2 736In Stock

Mfr. Part No.
TPS40305DRCR

Mouser Part No
595-TPS40305DRCR

Texas Instruments

Switching Controllers 3-20V Wide Input Syn c Buck Controller A A 595-TPS40305DRCT

Datasheet

2 736In Stock

Cut Tape

2,06 €

1,52 €

1,39 €

1,24 €

Reel

1,06 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 3 000

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 BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C42DGKR

UCC38C42DGK
Texas Instruments
1: 3,45 €
955In Stock

Mfr. Part No.
UCC38C42DGK

Mouser Part No
595-UCC38C42DGK

Texas Instruments

Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C42DGKR

Learn More

Datasheet

955In Stock

3,45 €

2,57 €

2,35 €

2,10 €

View

Min.: 1
Mult.: 1

Boost, Buck, Flyback, Forward

1 Output

1 MHz

100 %

18 V

1 A

0 C

+ 70 C

SMD/SMT

VSSOP-8

Tube

Switching Controllers 2.2-V to 16-V 2-MHz N-channel FET sync A A 926-LM2727MTC/NOPB

LM2727MTCX/NOPB
Texas Instruments
1: 2,74 €
2 564In Stock

Mfr. Part No.
LM2727MTCX/NOPB

Mouser Part No
926-LM2727MTCX/NOPB

Texas Instruments

Switching Controllers 2.2-V to 16-V 2-MHz N-channel FET sync A A 926-LM2727MTC/NOPB

Datasheet

2 564In Stock

Cut Tape

2,74 €

2,06 €

1,89 €

1,70 €

View

Reel

1,39 €

MouseReel Available

Min.: 1
Mult.: 1

: 2 500

Buck

1 Output

2 MHz

90 %

600 mV to 5 V

20 A

0 C

+ 125 C

SMD/SMT

TSSOP-14

Reel, Cut Tape, MouseReel

Switching Controllers COOLSET

ICE5AR3995BZXKLA1
Infineon Technologies
1: 1,43 €
1 680In Stock

Mfr. Part No.
ICE5AR3995BZXKLA1

Mouser Part No
726-ICE5AR3995BZXKLA

Infineon Technologies

Switching Controllers COOLSET

Learn More

Datasheet

1 680In Stock

1,43 €

1,05 €

0,894 €

0,846 €

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

TPS40305DRCT
Texas Instruments
1: 2,40 €
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

2,40 €

1,79 €

1,64 €

1,47 €

Reel

1,30 €

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 75V DC-DC Buck Controller with HLL

MIC2103YML-TR
Microchip Technology
1: 1,48 €
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

1,48 €

1,35 €

1,34 €

Reel

1,20 €

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 3-V to 36-V 4-A lo w -noise synchronous

LM61440AANRJRR
Texas Instruments
1: 3,69 €
2 780In Stock

Mfr. Part No.
LM61440AANRJRR

Mouser Part No
595-LM61440AANRJRR

Texas Instruments

Switching Controllers 3-V to 36-V 4-A lo w -noise synchronous

Learn More

Datasheet

2 780In Stock

Cut Tape

3,69 €

2,80 €

2,57 €

2,33 €

View

Reel

1,94 €

MouseReel Available

Min.: 1
Mult.: 1

: 3 000

Buck

1 Output

200 kHz to 2.2 MHz

98 %

1 V to 34 V

4 A

- 40 C

+ 150 C

SMD/SMT

Reel, Cut Tape, MouseReel

Switching Controllers Multiphase bidirecti onal current contro A 595-LM5170PHPT

LM5170PHPR
Texas Instruments
1: 10,84 €
1 081In Stock

Mfr. Part No.
LM5170PHPR

Mouser Part No
595-LM5170PHPR

Texas Instruments

Switching Controllers Multiphase bidirecti onal current contro A 595-LM5170PHPT

Datasheet

1 081In Stock

Cut Tape

10,84 €

8,52 €

7,94 €

7,30 €

View

Reel

6,36 €

MouseReel Available

Min.: 1
Mult.: 1

: 1 000

Boost, Buck

2 Output

50 kHz to 500 kHz

99 %

100 mV to 100 V

50 A

- 40 C

+ 125 C

SMD/SMT

TQFP-48

Reel, Cut Tape, MouseReel

Switching Controllers 4.5V-8V Input Synch Buck Contr A 595-TPS A 595-TPS40192DRCT

TPS40192DRCR
Texas Instruments
1: 2,49 €
4 746In Stock

Mfr. Part No.
TPS40192DRCR

Mouser Part No
595-TPS40192DRCR

Texas Instruments

Switching Controllers 4.5V-8V Input Synch Buck Contr A 595-TPS A 595-TPS40192DRCT

Datasheet

4 746In Stock

Cut Tape

2,49 €

1,86 €

1,70 €

1,53 €

View

Reel

1,24 €

MouseReel Available

Min.: 1
Mult.: 1

: 3 000

Buck

1 Output

600 kHz

85 %

591 mV to 14.4 V

20 A

- 40 C

+ 85 C

SMD/SMT

VSON-10

Reel, Cut Tape, MouseReel

Switching Controllers Adv Voltage Mode

UCC35702D
Texas Instruments
1: 9,97 €
284In Stock

Mfr. Part No.
UCC35702D

Mouser Part No
595-UCC35702D

Texas Instruments

Switching Controllers Adv Voltage Mode

Datasheet

284In Stock

9,97 €

7,81 €

6,93 €

6,21 €

View

Min.: 1
Mult.: 1

Boost, Buck

1 Output

700 kHz

99 %

9.6 V

1 A

0 C

+ 70 C

SMD/SMT

SOIC-14

Tube

Switching Controllers CONSTANT-CURRENT BUCK REGULATOR FOR DRIVING HIGH POWER LEDS

NCV30161MNWTXG
onsemi
1: 1,31 €
2 925In Stock

Mfr. Part No.
NCV30161MNWTXG

Mouser Part No
863-NCV30161MNWTXG

onsemi

Switching Controllers CONSTANT-CURRENT BUCK REGULATOR FOR DRIVING HIGH POWER LEDS

Learn More

Datasheet

2 925In Stock

Cut Tape

1,31 €

0,963 €

0,869 €

0,77 €

Reel

0,624 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 3 000

Buck

1 Output

2.4 MHz

100 %

1.36 V

- 40 C

+ 125 C

SMD/SMT

DFNW-10

Reel, Cut Tape, MouseReel

Switching Controllers Lo Vtg N-Ch MOSFET S ync Buck Reg Cntlr A 926-LM2743MTC/NOPB

LM2743MTCX/NOPB
Texas Instruments
1: 1,82 €
2 365In Stock

Mfr. Part No.
LM2743MTCX/NOPB

Mouser Part No
926-LM2743MTCX/NOPB

Texas Instruments

Switching Controllers Lo Vtg N-Ch MOSFET S ync Buck Reg Cntlr A 926-LM2743MTC/NOPB

Datasheet

2 365In Stock

Cut Tape

1,82 €

1,42 €

1,32 €

1,21 €

Reel

1,16 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 2 500

Buck

1 Output

50 kHz to 1 MHz

80 %

Adjustable

4 A

- 40 C

+ 125 C

SMD/SMT

TSSOP-14

Reel, Cut Tape, MouseReel

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

MIC2128YML-TR
Microchip Technology
1: 1,33 €
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

1,33 €

1,32 €

1,15 €

1,14 €

1,13 €

Reel

1,12 €

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 BiCMOS Advanced Phas e Shift

UCC3895N
Texas Instruments
1: 7,46 €
391In Stock

Mfr. Part No.
UCC3895N

Mouser Part No
595-UCC3895N

Texas Instruments

Switching Controllers BiCMOS Advanced Phas e Shift

Datasheet

391In Stock

7,46 €

5,38 €

5,07 €

4,78 €

View

Min.: 1
Mult.: 1

Boost, Buck

4 Output

1 MHz

100 %

5 V

100 mA

0 C

+ 70 C

Through Hole

PDIP-20

Tube

Switching Controllers 16V Step-Down DCDC Controller

XC9221A09AMR-G
Torex Semiconductor
1: 1,17 €
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

1,17 €

0,85 €

0,767 €

0,679 €

Reel

0,568 €

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: 2,03 €
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

2,03 €

1,51 €

1,38 €

1,24 €

Reel

1,02 €

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: 2,85 €
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

2,85 €

2,13 €

1,96 €

1,76 €

Reel

1,56 €

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: 2,42 €
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

2,42 €

1,81 €

1,65 €

1,48 €

Reel

1,20 €

View

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: 1,25 €
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

1,25 €

1,14 €

Reel

1,08 €

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 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
100 kHz to 3.2 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
500 mV
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
600 mV to 28 V
600 mV to 3.1 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
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
MSOP-8