Switching Controllers – Mouser South Africa

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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 High-Performance Syn chronous Buck Contr A 926-LM21212MH-1/NOPB

LM3743MM-300/NOPB
Texas Instruments
1: $2.58
986In Stock

Mfr. Part No.
LM3743MM-300/NOPB

Mouser Part No
926-LM3743MM300NOPB

Texas Instruments

Switching Controllers High-Performance Syn chronous Buck Contr A 926-LM21212MH-1/NOPB

Datasheet

986In Stock

Cut Tape

$2.58

$1.92

$1.76

$1.57

Reel

$1.38

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Buck

1 Output

300 kHz

91 %

800 mV to 4.6 V

20 A

- 40 C

+ 125 C

SMD/SMT

MSOP-10

Reel, Cut Tape, MouseReel

Switching Controllers Fixed Freq 99% Duty Cycle Peak Current A A 595-TPS51220RHBT

TPS51220RHBR
Texas Instruments
1: $3.86
2,251In Stock

Mfr. Part No.
TPS51220RHBR

Mouser Part No
595-TPS51220RHBR

Texas Instruments

Switching Controllers Fixed Freq 99% Duty Cycle Peak Current A A 595-TPS51220RHBT

Datasheet

2,251In Stock

Cut Tape

$3.86

$3.28

$3.01

$2.72

View

Reel

$2.34

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

VQFN-32

Reel, Cut Tape, MouseReel

Switching Controllers Dual-Channel Synchronous DC-DC Step-Down Controller with 5V/3.3V LDOs

RT6575AGQW
Richtek
1: $1.35
604In Stock

Mfr. Part No.
RT6575AGQW

Mouser Part No
835-RT6575AGQW

Richtek

Switching Controllers Dual-Channel Synchronous DC-DC Step-Down Controller with 5V/3.3V LDOs

Datasheet

604In Stock

Cut Tape

$1.35

$0.978

$0.885

$0.783

Reel

$0.67

View

Min.: 1
Mult.: 1

: 1,500

Buck

4 Output

300 kHz, 355 kHz

98 %

Adjustable

100 mA

- 40 C

+ 85 C

SMD/SMT

WQFN-20

Reel, Cut Tape

Switching Controllers Monolithic SMPS Controller

MIC38C43AYMM
Microchip Technology
1: $2.69
165In Stock

Mfr. Part No.
MIC38C43AYMM

Mouser Part No
998-MIC38C43AYMM

Microchip Technology

Switching Controllers Monolithic SMPS Controller

Datasheet

165In Stock

$2.69

$2.28

$1.97

Min.: 1
Mult.: 1

Boost, Buck, Flyback, Forward

1 Output

500 kHz

96 %

5 V

500 mA

- 40 C

+ 85 C

SMD/SMT

MSOP-8

Tube

Switching Controllers Monolithic SMPS Controller

MIC38HC43YN
Microchip Technology
1: $2.37
69In Stock

Mfr. Part No.
MIC38HC43YN

Mouser Part No
998-MIC38HC43YN

Microchip Technology

Switching Controllers Monolithic SMPS Controller

Datasheet

69In Stock

$2.37

$1.98

$1.97

Min.: 1
Mult.: 1

Boost, Buck, Flyback, Forward

1 Output

500 kHz

96 %

5 V

1 A

- 40 C

+ 85 C

Through Hole

DIP-8

Tube

Switching Controllers Single Phase PWM Controller with Light Load Efficiency Optimization

RT8123AGQW
Richtek
1: $0.83
1,498In Stock

Mfr. Part No.
RT8123AGQW

Mouser Part No
835-RT8123AGQW

Richtek

Switching Controllers Single Phase PWM Controller with Light Load Efficiency Optimization

Datasheet

1,498In Stock

Cut Tape

$0.83

$0.58

$0.52

$0.454

Reel

$0.378

View

Min.: 1
Mult.: 1

: 1,500

Buck

2 Output

200 kHz

95 %

800 mV to 3.3 V

150 mA

- 40 C

+ 85 C

SMD/SMT

WQFN-16

Reel, Cut Tape

Switching Controllers Automotive 80V 100 % duty-cycle capable

LM5137QRHARQ1
Texas Instruments
1: $5.28
9,234In Stock
New Product

Mfr. Part No.
LM5137QRHARQ1

Mouser Part No
595-LM5137QRHARQ1

New Product

Texas Instruments

Switching Controllers Automotive 80V 100 % duty-cycle capable

Learn More

Datasheet

9,234In Stock

Cut Tape

$5.28

$4.02

$3.71

$3.36

View

Reel

$2.97

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Buck

2 Output

2.42 MHz

100 %

4 V to 80 V

800 mV to 60 V

- 40 C

+ 150 C

SMD/SMT

VQFN-36

Reel, Cut Tape, MouseReel

Switching Controllers 12V Green Voltage Mode High Efficiency Synchronous Buck PWM Controller

RT8130CGQW
Richtek
1: $0.85
1,497In Stock

Mfr. Part No.
RT8130CGQW

Mouser Part No
835-RT8130CGQW

Richtek

Switching Controllers 12V Green Voltage Mode High Efficiency Synchronous Buck PWM Controller

Datasheet

1,497In Stock

Cut Tape

$0.85

$0.597

$0.535

$0.468

Reel

$0.388

View

Min.: 1
Mult.: 1

: 1,500

Buck

2 Output

300 kHz

88 %

5 V to 12 V

4 mA

- 40 C

+ 85 C

SMD/SMT

WDFN-10

Reel, Cut Tape

Switching Controllers Monolithic SMPS Controller

MIC38HC43-1YM
Microchip Technology
1: $3.42
125In Stock

Mfr. Part No.
MIC38HC43-1YM

Mouser Part No
998-MIC38HC43-1YM

Microchip Technology

Switching Controllers Monolithic SMPS Controller

Datasheet

125In Stock

$3.42

$3.12

$2.61

Min.: 1
Mult.: 1

Boost, Buck, Flyback, Forward

1 Output

500 kHz

96 %

5 V

1 A

- 40 C

+ 85 C

SMD/SMT

SOIC-14

Tube

Switching Controllers Sync Buck, PWM Ctrl 300Khz, 8ns

MCP19035-AAABE/MF
Microchip Technology
1: $2.16
60In Stock

Mfr. Part No.
MCP19035-AAABE/MF

Mouser Part No
579-MCP19035AAABE/MF

Microchip Technology

Switching Controllers Sync Buck, PWM Ctrl 300Khz, 8ns

Learn More

Datasheet

60In Stock

$2.16

$1.83

$1.76

Min.: 1
Mult.: 1

Buck

1 Output

300 kHz

85 %

5 V

50 mA

- 40 C

+ 125 C

SMD/SMT

DFN-10

AEC-Q100

Tube

Switching Controllers 36V, Dual Phase COT Buck Controller, Stackable Feature

MIC21LV32YML-TR
Microchip Technology
1: $2.23
3,370In Stock

Mfr. Part No.
MIC21LV32YML-TR

Mouser Part No
579-MIC21LV32YML-TR

Microchip Technology

Switching Controllers 36V, Dual Phase COT Buck Controller, Stackable Feature

Learn More

Datasheet

3,370In Stock

Cut Tape

$2.23

$1.98

$1.93

$1.88

View

Reel

$1.80

Min.: 1
Mult.: 1

: 3,300

Buck

1 Output

100 kHz to 1 MHz

85 %

4.5 V to 36 V

Adjustable

- 40 C

+ 125 C

SMD/SMT

VQFN-32

Reel, Cut Tape

Switching Controllers PWM Type DC/DC Converter IC Included a Switching MOSFET

BM2P015-Z
ROHM Semiconductor
1: $2.90
2,000In Stock

Mfr. Part No.
BM2P015-Z

Mouser Part No
755-BM2P015-Z

ROHM Semiconductor

Switching Controllers PWM Type DC/DC Converter IC Included a Switching MOSFET

Learn More

Datasheet

2,000In Stock

$2.90

$2.16

$1.98

$1.77

View

Min.: 1
Mult.: 1

Buck

1 Output

70 kHz

82 %

8.9 V to 26 V

10.4 A

- 40 C

+ 105 C

Through Hole

DIP-7

Tube

Switching Controllers 38V DC-DC Buck Controller with HSC

MIC2102YML-TR
Microchip Technology
1: $1.55
4,238In Stock

Mfr. Part No.
MIC2102YML-TR

Mouser Part No
998-MIC2102YMLTR

Microchip Technology

Switching Controllers 38V DC-DC Buck Controller with HSC

Datasheet

4,238In Stock

Cut Tape

$1.55

$1.54

$1.38

$1.34

View

Reel

$1.30

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 Multiphase bidirecti onal current contro A 595-LM5170PHPR

LM5170PHPT
Texas Instruments
1: $14.89
245In Stock

Mfr. Part No.
LM5170PHPT

Mouser Part No
595-LM5170PHPT

Texas Instruments

Switching Controllers Multiphase bidirecti onal current contro A 595-LM5170PHPR

Datasheet

245In Stock

Cut Tape

$14.89

$11.76

$10.98

$10.12

Reel

$9.69

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

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 36V, Dual Phase COT Buck Controller, HLL & Phase Shedding

MIC21LV33YML-TR
Microchip Technology
1: $2.02
3,290In Stock

Mfr. Part No.
MIC21LV33YML-TR

Mouser Part No
579-MIC21LV33YML-TR

Microchip Technology

Switching Controllers 36V, Dual Phase COT Buck Controller, HLL & Phase Shedding

Learn More

Datasheet

3,290In Stock

Cut Tape

$2.02

$1.80

$1.79

$1.77

View

Reel

$1.63

Min.: 1
Mult.: 1

: 3,300

Buck

1 Output

100 kHz to 1 MHz

85 %

Adjustable

- 40 C

+ 125 C

SMD/SMT

Reel, Cut Tape

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

LM5117QPMH/NOPB
Texas Instruments
1: $8.47
281In 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

281In Stock

$8.47

$6.56

$5.66

$5.12

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 Automotive grade 4.5 -42V wide VIN curre A 595-LM25119QPSQXNOPB

LM25119QPSQ/NOPB
Texas Instruments
1: $9.20
1,895In Stock

Mfr. Part No.
LM25119QPSQ/NOPB

Mouser Part No
595-LM25119QPSQ/NOPB

Texas Instruments

Switching Controllers Automotive grade 4.5 -42V wide VIN curre A 595-LM25119QPSQXNOPB

Datasheet

1,895In Stock

Cut Tape

$9.20

$7.15

$6.64

$6.08

Reel

$5.50

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Buck

2 Output

50 kHz to 750 kHz

95 %

800 mV to 41.3 V

40 A

- 40 C

+ 125 C

SMD/SMT

WQFN-32

Reel, Cut Tape, MouseReel

Switching Controllers 4.5-14V Inp Synch Bu ck Cntrlr A 595-TPS A 595-TPS40197RGYT

TPS40197RGYR
Texas Instruments
1: $4.22
2,994In Stock

Mfr. Part No.
TPS40197RGYR

Mouser Part No
595-TPS40197RGYR

Texas Instruments

Switching Controllers 4.5-14V Inp Synch Bu ck Cntrlr A 595-TPS A 595-TPS40197RGYT

Datasheet

2,994In Stock

Cut Tape

$4.22

$4.12

$3.94

$3.57

View

Reel

$3.20

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Buck

1 Output

520 kHz

85 %

900 mV to 1.2 V

6 A

- 40 C

+ 85 C

SMD/SMT

VQFN-16

Reel, Cut Tape, MouseReel

Switching Controllers High Speed Vltg Mode A 595-UCC35705D A 5 A 595-UCC35705D

UCC35705DTR
Texas Instruments
1: $3.43
2,278In Stock

Mfr. Part No.
UCC35705DTR

Mouser Part No
595-UCC35705DTR

Texas Instruments

Switching Controllers High Speed Vltg Mode A 595-UCC35705D A 5 A 595-UCC35705D

Datasheet

2,278In Stock

Cut Tape

$3.43

$2.55

$2.34

$2.11

Reel

$1.78

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Boost, Buck, Flyback, Forward

1 Output

4 MHz

93 %

20 mA

0 C

+ 70 C

SMD/SMT

SOIC-8

Reel, Cut Tape, MouseReel

Switching Controllers INDUSTRIAL TEMP RANGE I

NCP81243MNTXG
onsemi
1: $3.16
2,103In Stock

Mfr. Part No.
NCP81243MNTXG

Mouser Part No
863-NCP81243MNTXG

onsemi

Switching Controllers INDUSTRIAL TEMP RANGE I

Learn More

Datasheet

2,103In Stock

Cut Tape

$3.16

$2.37

$2.17

$1.97

Reel

$1.62

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Buck

2 Output

300 kHz to 1.4 MHz

100 %

3.5 V

800 uA

- 40 C

+ 100 C

SMD/SMT

QFN-52

Reel, Cut Tape, MouseReel

Switching Controllers CVCC Flyback Cntlr w / Primary-Side Reg A 595-UCC28722DBVT

UCC28722DBVR
Texas Instruments
1: $0.62
4,421In Stock

Mfr. Part No.
UCC28722DBVR

Mouser Part No
595-UCC28722DBVR

Texas Instruments

Switching Controllers CVCC Flyback Cntlr w / Primary-Side Reg A 595-UCC28722DBVT

Datasheet

4,421In Stock

Cut Tape

$0.62

$0.441

$0.397

$0.345

View

Reel

$0.267

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Buck, Flyback

1 Output

650 Hz to 80 kHz

99 %

21 V

37 mA

- 40 C

+ 125 C

SMD/SMT

SOT-23-6

Reel, Cut Tape, MouseReel

Switching Controllers Dual-Channel Synchronous DC/DC Step-Down Controller with 5V/3.3V LDOs

RT6585BGQW
Richtek
1: $1.52
1,542In Stock

Mfr. Part No.
RT6585BGQW

Mouser Part No
835-RT6585BGQW

Richtek

Switching Controllers Dual-Channel Synchronous DC/DC Step-Down Controller with 5V/3.3V LDOs

Datasheet

1,542In Stock

Cut Tape

$1.52

$1.11

$1.01

$0.89

Reel

$0.737

View

Min.: 1
Mult.: 1

: 1,500

Buck

4 Output

400 kHz, 475 kHz

98 %

Adjustable

100 mA

- 40 C

+ 85 C

SMD/SMT

WQFN-20

Reel, Cut Tape

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

XC9503B093AR-G
Torex Semiconductor
1: $2.48
819In Stock

Mfr. Part No.
XC9503B093AR-G

Mouser Part No
865-XC9503B093AR-G

Torex Semiconductor

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

Datasheet

819In Stock

Cut Tape

$2.48

$1.83

$1.67

$1.50

Reel

$1.31

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: $3.31
599In Stock

Mfr. Part No.
LM5085SDE/NOPB

Mouser Part No
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

$3.31

$2.48

$2.28

$2.05

Reel

$1.80

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 Dual DDR selectable Sync buck Controller A 595-TPS51020DBT

TPS51020DBTR
Texas Instruments
1: $6.76
891In Stock

Mfr. Part No.
TPS51020DBTR

Mouser Part No
595-TPS51020DBTR

Texas Instruments

Switching Controllers Dual DDR selectable Sync buck Controller A 595-TPS51020DBT

Datasheet

891In Stock

Cut Tape

$6.76

$5.18

$4.78

$4.35

View

Reel

$3.91

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Buck

2 Output

450 kHz

88 %

900 mV

15 A

- 40 C

+ 85 C

SMD/SMT

TSSOP-30

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