Switching Controllers – Mouser Chile

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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: 773

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Part #

Switching Controllers 2ch.Step-Down DC/DC Controller Ics

XC9503B093AR-G
Torex Semiconductor
1: $2.608
819In Stock

Mfr. Part #
XC9503B093AR-G

Mouser Part #
865-XC9503B093AR-G

Torex Semiconductor

Switching Controllers 2ch.Step-Down DC/DC Controller Ics

Datasheet

819In Stock

Cut Tape

$2.608

$1.925

$1.756

$1.578

Reel

$1.378

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

Buck

2 Output

300 kHz

100 %

900 mV to 10 V

1 A

- 40 C

+ 85 C

SMD/SMT

MSOP-10

Reel, Cut Tape, MouseReel

Switching Controllers 4.5-75V Wide Vin Co nstant On-Time Non-S A 926-LM5085SD/NOPB

LM5085SDE/NOPB
Texas Instruments
1: $3.481
599In Stock

Mfr. Part #
LM5085SDE/NOPB

Mouser Part #
926-LM5085SDE/NOPB

Texas Instruments

Switching Controllers 4.5-75V Wide Vin Co nstant On-Time Non-S A 926-LM5085SD/NOPB

Datasheet

599In Stock

Cut Tape

$3.481

$2.608

$2.398

$2.156

Reel

$1.893

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

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 Current-Mode PWM Con troller ALT 595-UC3 ALT 595-UC3843AD8TR

UC3843AD8TRG4
Texas Instruments
1: $1.031
2.104In Stock

Mfr. Part #
UC3843AD8TRG4

Mouser Part #
595-UC3843AD8TRG4

Texas Instruments

Switching Controllers Current-Mode PWM Con troller ALT 595-UC3 ALT 595-UC3843AD8TR

Datasheet

Product Comments

2.104In Stock

Cut Tape

$1.031

$734

$662

$582

Reel

$454

View

MouseReel Available

Min.: 1
Mult.: 1

: 2.500

Boost, Buck, Flyback, Forward

1 Output

500 kHz

100 %

200 mA

0 C

+ 70 C

SMD/SMT

SOIC-8

Reel, Cut Tape, MouseReel

Switching Controllers Automotive 80V 100 % duty cycle dual-c

LM5137FBQRHARQ1
Texas Instruments
1: $6.079
1.872In Stock
New Product

Mfr. Part #
LM5137FBQRHARQ1

Mouser Part #
595-LM5137FBQRHARQ1

New Product

Texas Instruments

Switching Controllers Automotive 80V 100 % duty cycle dual-c

Learn More

Datasheet

1.872In Stock

Cut Tape

$6.079

$4.638

$4.280

$3.881

View

Reel

$3.618

MouseReel Available

Min.: 1
Mult.: 1
Max.: 1.001

: 2.500

Buck

2 Output

100 kHz to 2.5 MHz

100 %

4 V to 80 V

800 mV to 60 V

- 40 C

+ 125 C

SMD/SMT

VQFN-36

Reel, Cut Tape, MouseReel

Switching Controllers USB Std Power Range W-QFN4040-24/SWP(Type A1-B) T&R 3K

APK43070QDKZW-13-FA01
Diodes Incorporated
1: $1.788
2.093In Stock
New Product

Mfr. Part #
APK43070QDKZW-13-FA01

Mouser Part #
621-43070QDKZW13FA01

New Product

Diodes Incorporated

Switching Controllers USB Std Power Range W-QFN4040-24/SWP(Type A1-B) T&R 3K

Learn More

Datasheet

2.093In Stock

Cut Tape

$1.788

$1.304

$1.188

$1.049

Reel

$1.049

Min.: 1
Mult.: 1
Max.: 209

: 3.000

Buck

1 Output

440 kHz

95 %

4 V to 36 V

5 V to 28 V

3 A

- 40 C

+ 125 C

SMD/SMT

WQFN-24

Reel, Cut Tape

Switching Controllers Fixed-Freq Notebook Sys Pwr Controller D DISC-RESTRICTED-PART

TPS51220ARSNR
Texas Instruments
1: $4.060
440In Stock

Mfr. Part #
TPS51220ARSNR

Mouser Part #
595-TPS51220ARSNR

Texas Instruments

Switching Controllers Fixed-Freq Notebook Sys Pwr Controller D DISC-RESTRICTED-PART

Datasheet

440In Stock

Cut Tape

$4.060

$3.450

$3.166

$2.861

View

MouseReel Available

Min.: 1
Mult.: 1

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 2/1-PHASE SYNC BUCK

NCP81172MNTXG
onsemi
1: $1.262
2.076In Stock

Mfr. Part #
NCP81172MNTXG

Mouser Part #
863-NCP81172MNTXG

onsemi

Switching Controllers 2/1-PHASE SYNC BUCK

Datasheet

2.076In Stock

Cut Tape

$1.262

$913

$826

$730

View

Reel

$590

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

Buck

2 Output

200 kHz to 800 kHz

100 %

2 V

2 mA

- 40 C

+ 125 C

SMD/SMT

Reel, Cut Tape, MouseReel

Switching Controllers ISL78264ARZ AUTOMOTIVE GRADE - Dual Sync Buck controller 5x

ISL78264ARZ-T7A
Renesas / Intersil
1: $6.352
220In Stock

Mfr. Part #
ISL78264ARZ-T7A

Mouser Part #
968-ISL78264ARZ-T7A

Renesas / Intersil

Switching Controllers ISL78264ARZ AUTOMOTIVE GRADE - Dual Sync Buck controller 5x

Learn More

Datasheet

220In Stock

Cut Tape

$6.352

$4.869

$4.501

$4.091

Reel

$3.986

View

Min.: 1
Mult.: 1

: 250

Buck

2 Output

200 kHz to 2.2 MHz

98.75 %

3.25 V to 5 V

- 40 C

+ 125 C

SMD/SMT

WFQFN-32

AEC-Q100

Reel, Cut Tape

Switching Controllers High Speed Vltg Mode A 595-UCC35705DTR A A 595-UCC35705DTR

UCC35705D
Texas Instruments
1: $4.228
598In Stock

Mfr. Part #
UCC35705D

Mouser Part #
595-UCC35705D

Texas Instruments

Switching Controllers High Speed Vltg Mode A 595-UCC35705DTR A A 595-UCC35705DTR

Datasheet

598In Stock

$4.228

$3.155

$2.882

$2.577

View

Min.: 1
Mult.: 1

Boost, Buck, Flyback, Forward

1 Output

4 MHz

93 %

8.8 V

20 mA

0 C

+ 70 C

SMD/SMT

SOIC-8

Tube

Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C40DGKR

UCC38C40DGK
Texas Instruments
1: $4.217
371In Stock

Mfr. Part #
UCC38C40DGK

Mouser Part #
595-UCC38C40DGK

Texas Instruments

Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C40DGKR

Learn More

Datasheet

371In Stock

$4.217

$3.145

$2.871

$2.566

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 Wide Vtg Range Buck- Boost Cntlr A 595-L A 595-LM25118Q1MHENOPB

LM25118Q1MH/NOPB
Texas Instruments
1: $8.613
218In Stock

Mfr. Part #
LM25118Q1MH/NOPB

Mouser Part #
595-LM25118Q1MH/NOPB

Texas Instruments

Switching Controllers Wide Vtg Range Buck- Boost Cntlr A 595-L A 595-LM25118Q1MHENOPB

Learn More

Datasheet

218In Stock

$8.613

$6.647

$6.152

$5.132

View

Min.: 1
Mult.: 1

Boost, Buck

1 Output

500 kHz

80 %

1.23 V to 38 V

4 A

- 40 C

+ 125 C

SMD/SMT

HTSSOP-20

AEC-Q100

Tube

Switching Controllers Vin Vout mA Flyback MSOP-10

RVPW016-FJH-CT
RECOM Power
1: $9.707
20In Stock
70Expected 9/1/2026
New Product

Mfr. Part #
RVPW016-FJH-CT

Mouser Part #
919-RVPW016-FJH-CT

New Product

RECOM Power

Switching Controllers Vin Vout mA Flyback MSOP-10

Learn More

Datasheet

20In Stock

70Expected 9/1/2026

$9.707

$7.520

$6.973

$6.373

View

Min.: 1
Mult.: 1

Buck, Boost, Flyback

1 Output

500 kHz

85 %

4 V to 100 V

- 40 C

+ 125 C

SMD/SMT

MSOP-10

Switching Controllers 42V 100% duty-cycle capable dual-channe

LM25137RHAR
Texas Instruments
1: $3.965
513In Stock
New Product

Mfr. Part #
LM25137RHAR

Mouser Part #
595-LM25137RHAR

New Product

Texas Instruments

Switching Controllers 42V 100% duty-cycle capable dual-channe

Learn More

Datasheet

513In Stock

Cut Tape

$3.965

$2.955

$2.703

$2.429

$2.303

Reel

$1.946

MouseReel Available

Min.: 1
Mult.: 1

: 2.500

Buck

2 Output

100 kHz to 2.2 MHz

100 %

4 V to 42 V

800 mV to 36 V

- 40 C

+ 150 C

SMD/SMT

VQFN-36

Reel, Cut Tape, MouseReel

Switching Controllers Automotive 42-V sync hronous buck DC/DC

LM25148BQRGYRQ1
Texas Instruments
1: $4.259
5.959In Stock
New Product

Mfr. Part #
LM25148BQRGYRQ1

Mouser Part #
595-LM25148BQRGYRQ1

New Product

Texas Instruments

Switching Controllers Automotive 42-V sync hronous buck DC/DC

Learn More

Datasheet

5.959In Stock

Cut Tape

$4.259

$3.218

$2.966

$2.671

View

Reel

$2.377

MouseReel Available

Min.: 1
Mult.: 1
Max.: 1.001

: 3.000

Buck

1 Output

2.2 MHz

100 %

3.5 V to 42 V

800 mV to 36 V

- 40 C

+ 150 C

SMD/SMT

VQFN-24

Reel, Cut Tape, MouseReel

Switching Controllers Automotive 80V sync hronous buck DC/DC c

LM5148PSQRGYRQ1
Texas Instruments
1: $5.353
2.319In Stock
New Product

Mfr. Part #
LM5148PSQRGYRQ1

Mouser Part #
595-LM5148PSQRGYRQ1

New Product

Texas Instruments

Switching Controllers Automotive 80V sync hronous buck DC/DC c

Datasheet

2.319In Stock

Cut Tape

$5.353

$4.081

$3.765

$3.407

View

Reel

$3.176

MouseReel Available

Min.: 1
Mult.: 1
Max.: 1.001

: 3.000

Buck

1 Output

2.2 MHz

99 %

3.5 V to 80 V

800 mV to 55 V

20 A

- 40 C

+ 125 C

SMD/SMT

VQFN-19

Reel, Cut Tape, MouseReel

Switching Controllers Automotive 36V 1A 50 0KHz current mode

UC2843ALQD8RQ1
Texas Instruments
1: $1.588
2.340In Stock
New Product

Mfr. Part #
UC2843ALQD8RQ1

Mouser Part #
595-UC2843ALQD8RQ1

New Product

Texas Instruments

Switching Controllers Automotive 36V 1A 50 0KHz current mode

Learn More

Datasheet

2.340In Stock

Cut Tape

$1.588

$1.167

$1.052

$934

View

Reel

$834

MouseReel Available

Min.: 1
Mult.: 1
Max.: 1.001

: 2.500

Boost, Buck, Flyback

1 Output

500 kHz

100 %

10 V

4.95 V to 5.05 V

1 A

- 40 C

+ 125 C

SMD/SMT

SOIC-8

Reel, Cut Tape, MouseReel

Switching Controllers Wide Inp Non-Sync Buck DC/DC Cntrlr

TPS40200SHKJ
Texas Instruments
1: $248.683
218In Stock

Mfr. Part #
TPS40200SHKJ

Mouser Part #
595-TPS40200SHKJ

Texas Instruments

Switching Controllers Wide Inp Non-Sync Buck DC/DC Cntrlr

Datasheet

218In Stock

$248.683

$242.961

$233.118

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

CFP-8

Tube

Switching Controllers 36V 1A 500KHz curr e nt mode PWM control

UC2842LDR-8
Texas Instruments
1: $684
2.471In Stock
New Product

Mfr. Part #
UC2842LDR-8

Mouser Part #
595-UC2842LDR-8

New Product

Texas Instruments

Switching Controllers 36V 1A 500KHz curr e nt mode PWM control

Learn More

Datasheet

2.471In Stock

Cut Tape

$684

$486

$436

$381

View

Reel

$326

MouseReel Available

Min.: 1
Mult.: 1
Max.: 1.001

: 2.500

Boost, Buck, Flyback

2 Output

500 kHz

100 %

4.95 V to 5.05 V

1 A

- 40 C

+ 125 C

SMD/SMT

SOIC-8

Reel, Cut Tape, MouseReel

Switching Controllers 36V 1A 500KHz curr e nt mode PWM control

UC2843LDR-8
Texas Instruments
1: $694
2.153In Stock
New Product

Mfr. Part #
UC2843LDR-8

Mouser Part #
595-UC2843LDR-8

New Product

Texas Instruments

Switching Controllers 36V 1A 500KHz curr e nt mode PWM control

Learn More

Datasheet

2.153In Stock

Cut Tape

$694

$496

$445

$389

View

Reel

$332

MouseReel Available

Min.: 1
Mult.: 1
Max.: 1.001

: 2.500

Boost, Buck, Flyback

2 Output

500 kHz

100 %

4.95 V to 5.05 V

1 A

- 40 C

+ 125 C

SMD/SMT

SOIC-8

Reel, Cut Tape, MouseReel

Switching Controllers USB Std Power Range W-QFN4040-24(Type A1) T&R 3K

APK43070DKZ-13-FA01
Diodes Incorporated
1: $1.514
2.084In Stock
New Product

Mfr. Part #
APK43070DKZ-13-FA01

Mouser Part #
621-PK43070DKZ13FA01

New Product

Diodes Incorporated

Switching Controllers USB Std Power Range W-QFN4040-24(Type A1) T&R 3K

Learn More

Datasheet

2.084In Stock

Cut Tape

$1.514

$1.094

$974

$873

Reel

$873

MouseReel Available

Min.: 1
Mult.: 1
Max.: 214

: 3.000

Buck

1 Output

440 kHz

95 %

4 V to 36 V

1 V to 28 V

3 A

- 40 C

+ 150 C

SMD/SMT

W-QFN4040-24

Reel, Cut Tape, MouseReel

Switching Controllers 2-Phase Sync Boost CTL, 40V, 3MHz

LTC7806RUFDM#PBF
Analog Devices
1: $11.095
525In Stock

Mfr. Part #
LTC7806RUFDM#PBF

Mouser Part #
584-LTC7806RUFDM#PBF

Analog Devices

Switching Controllers 2-Phase Sync Boost CTL, 40V, 3MHz

Learn More

Datasheet

525In Stock

$11.095

$8.655

$7.940

$7.267

View

Min.: 1
Mult.: 1
Max.: 525

Boost, Buck

1 Output

3 MHz

100 %

40 V

- 40 C

+ 150 C

SMD/SMT

QFN-28

Tube

Switching Controllers Automotive 42-V sync hronous buck DC/DC

LM25148QRGYRQ1
Texas Instruments
1: $4.386
1.062In Stock
9.000On Order

Mfr. Part #
LM25148QRGYRQ1

Mouser Part #
595-LM25148QRGYRQ1

Texas Instruments

Switching Controllers Automotive 42-V sync hronous buck DC/DC

Learn More

Datasheet

1.062In Stock

9.000On Order

Cut Tape

$4.386

$3.313

$3.050

$2.745

View

Reel

$2.293

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

Buck

1 Output

2.2 MHz

100 %

800 mV to 36 V

20 A

- 40 C

+ 150 C

SMD/SMT

VQFN-24

Reel, Cut Tape, MouseReel

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

LM5148RGYR
Texas Instruments
1: $2.419
8.391In 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

8.391In Stock

Cut Tape

$2.419

$1.798

$1.641

$1.472

Reel

$1.230

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: $5.374
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

$5.374

$4.102

$3.776

$3.429

View

Reel

$3.050

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: $2.650
2.059In Stock

Mfr. Part #
UCC28C56HQDRQ1

Mouser Part #
595-UCC28C56HQDRQ1

Texas Instruments

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

Learn More

Datasheet

2.059In Stock

Cut Tape

$2.650

$1.967

$1.798

$1.609

Reel

$1.357

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

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