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: 691

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Part #

Switching Controllers Monolithic High Speed SMPS Controller

MIC38HC43YM-TR
Microchip Technology
1: $1.90
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

$1.90

$1.58

$1.41

Reel

$1.41

$1.40

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 Monolithic SMPS Controller

MIC38C43YN
Microchip Technology
1: $1.60
323In Stock

Mfr. Part No.
MIC38C43YN

Mouser Part No
998-MIC38C43YN

Microchip Technology

Switching Controllers Monolithic SMPS Controller

Datasheet

323In Stock

$1.60

$1.35

$1.33

Min.: 1
Mult.: 1

Boost, Buck, Flyback, Forward

1 Output

500 kHz

96 %

5 V

500 mA

- 40 C

+ 85 C

Through Hole

DIP-8

Tube

Switching Controllers Monolithic SMPS Controller

MIC38C42-1YM
Microchip Technology
1: $3.61
196In Stock

Mfr. Part No.
MIC38C42-1YM

Mouser Part No
998-MIC38C42-1YM

Microchip Technology

Switching Controllers Monolithic SMPS Controller

Datasheet

196In Stock

$3.61

$3.30

$2.76

Min.: 1
Mult.: 1

Boost, Buck, Flyback, Forward

1 Output

500 kHz

96 %

5 V

500 mA

- 40 C

+ 85 C

SMD/SMT

SOIC-14

Tube

Switching Controllers Monolithic SMPS Controller

MIC38C42AYM
Microchip Technology
1: $2.61
87In Stock

Mfr. Part No.
MIC38C42AYM

Mouser Part No
998-MIC38C42AYM

Microchip Technology

Switching Controllers Monolithic SMPS Controller

Datasheet

87In Stock

$2.61

$2.20

$1.92

Min.: 1
Mult.: 1

Boost, Buck, Flyback, Forward

1 Output

500 kHz

96 %

5 V

500 mA

- 40 C

+ 85 C

SMD/SMT

SOIC-8

Tube

Switching Controllers 500KHz Synchronous Buck Controller

MIC2169AYMM
Microchip Technology
1: $2.78
89In Stock

Mfr. Part No.
MIC2169AYMM

Mouser Part No
998-MIC2169AYMM

Microchip Technology

Switching Controllers 500KHz Synchronous Buck Controller

Datasheet

89In Stock

$2.78

$2.62

$2.58

$2.57

$2.54

Min.: 1
Mult.: 1

Buck

1 Output

500 kHz

92 %

800 mV

- 40 C

+ 125 C

SMD/SMT

MSOP-10

Tube

Switching Controllers Automotive 2.2-MHz l ow-IQ synchronous b

LM25141QURGERQ1
Texas Instruments
1: $4.30
3,988In Stock

Mfr. Part No.
LM25141QURGERQ1

Mouser Part No
595-LM25141QURGERQ1

Texas Instruments

Switching Controllers Automotive 2.2-MHz l ow-IQ synchronous b

Learn More

Datasheet

3,988In Stock

Cut Tape

$4.30

$3.63

$3.34

$3.01

View

Reel

$2.55

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Buck

1 Output

440 kHz, 4.4 MHz

99 %

3.3 V, 5 V, 1.5 V to 15 V

30 A

- 40 C

+ 150 C

SMD/SMT

VQFN-24

Reel, Cut Tape, MouseReel

Switching Controllers Wide Input Range Syn Buck Controller A 5 A 595-LM5141RGER

LM5141RGET
Texas Instruments
1: $6.76
200In Stock

Mfr. Part No.
LM5141RGET

Mouser Part No
595-LM5141RGET

Texas Instruments

Switching Controllers Wide Input Range Syn Buck Controller A 5 A 595-LM5141RGER

Learn More

Datasheet

200In Stock

Cut Tape

$6.76

$5.18

$4.78

$4.35

Reel

$4.09

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

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 Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64201DBVT

TPS64201DBVR
Texas Instruments
1: $1.76
1,246In Stock

Mfr. Part No.
TPS64201DBVR

Mouser Part No
595-TPS64201DBVR

Texas Instruments

Switching Controllers Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64201DBVT

Datasheet

1,246In Stock

Cut Tape

$1.76

$1.29

$1.17

$1.04

Reel

$0.873

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Buck

1 Output

450 kHz

100 %

1.2 V to 6.5 V

3 A

- 40 C

+ 85 C

SMD/SMT

SOT-23-6

Reel, Cut Tape, MouseReel

Switching Controllers Current Mode

UC3843D
Texas Instruments
1: $1.93
733In Stock

Mfr. Part No.
UC3843D

Mouser Part No
595-UC3843D

Texas Instruments

Switching Controllers Current Mode

Datasheet

733In Stock

$1.93

$1.43

$1.21

$1.15

View

Min.: 1
Mult.: 1

Boost, Buck, Flyback, Forward

1 Output

500 kHz

100 %

5 V

200 mA

0 C

+ 70 C

SMD/SMT

SOIC-14

Tube

Switching Controllers 75V, Dual Phase Advanced COT PWM Controller

MIC2133YML-TR
Microchip Technology
1: $2.42
3,571In Stock

Mfr. Part No.
MIC2133YML-TR

Mouser Part No
494-MIC2133YML-TR

Microchip Technology

Switching Controllers 75V, Dual Phase Advanced COT PWM Controller

Learn More

Datasheet

3,571In Stock

Cut Tape

$2.42

$2.21

$2.20

$2.19

Reel

$2.04

Quote

Min.: 1
Mult.: 1

: 3,300

Buck

1 Output

100 kHz to 1 MHz

85 %

600 mV to 28 V

100 mA

- 40 C

+ 125 C

SMD/SMT

VQFN-32

Reel, Cut Tape

Switching Controllers AC Low Iq dual Sync Buck Cntrlr

TPS43351QDAPRQ1
Texas Instruments
1: $4.80
1,850In Stock

Mfr. Part No.
TPS43351QDAPRQ1

Mouser Part No
595-TPS43351QDAPRQ1

Texas Instruments

Switching Controllers AC Low Iq dual Sync Buck Cntrlr

Datasheet

1,850In Stock

Cut Tape

$4.80

$4.34

$4.00

$3.62

Reel

$3.29

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Buck

2 Output

150 kHz to 600 kHz

98.75 %

5 V

6 A

- 40 C

+ 125 C

SMD/SMT

HTSSOP-38

AEC-Q100

Reel, Cut Tape, MouseReel

Switching Controllers Auto Cat Tr Synch Bu ck Controller

TPS5130QPTRQ1
Texas Instruments
1: $11.72
993In Stock

Mfr. Part No.
TPS5130QPTRQ1

Mouser Part No
595-TPS5130QPTRQ1

Texas Instruments

Switching Controllers Auto Cat Tr Synch Bu ck Controller

Datasheet

993In Stock

Cut Tape

$11.72

$9.18

$8.54

$7.84

Reel

$7.14

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

+ 125 C

SMD/SMT

LQFP-48

AEC-Q100

Reel, Cut Tape, MouseReel

Switching Controllers Sgl Sync SD Cntrlr A 595-TPS53014DGS A 5 A 595-TPS53014DGS

TPS53014DGSR
Texas Instruments
1: $2.65
2,448In Stock

Mfr. Part No.
TPS53014DGSR

Mouser Part No
595-TPS53014DGSR

Texas Instruments

Switching Controllers Sgl Sync SD Cntrlr A 595-TPS53014DGS A 5 A 595-TPS53014DGS

Datasheet

2,448In Stock

Cut Tape

$2.65

$1.98

$1.81

$1.62

Reel

$1.36

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Buck

1 Output

500 kHz

83 %

760 mV to 7 V

25 A

- 40 C

+ 85 C

SMD/SMT

MSOP-10

Reel, Cut Tape, MouseReel

Switching Controllers Low-Voltage Synchron ous Buck Controller

LM1771SSD/NOPB
Texas Instruments
1: $2.51
597In Stock

Mfr. Part No.
LM1771SSD/NOPB

Mouser Part No
926-LM1771SSD/NOPB

Texas Instruments

Switching Controllers Low-Voltage Synchron ous Buck Controller

Datasheet

597In Stock

Cut Tape

$2.51

$1.87

$1.71

$1.54

Reel

$1.33

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Buck

1 Output

100 kHz to 1 MHz

95 %

800 mV to 4.5 V

6 A

- 40 C

+ 125 C

SMD/SMT

WSON-6

Reel, Cut Tape, MouseReel

Switching Controllers 4.5V-20V Buck Cntrlr A 595-TPS40195RGYT A 595-TPS40195RGYT

TPS40195RGYR
Texas Instruments
1: $3.61
4,368In Stock

Mfr. Part No.
TPS40195RGYR

Mouser Part No
595-TPS40195RGYR

Texas Instruments

Switching Controllers 4.5V-20V Buck Cntrlr A 595-TPS40195RGYT A 595-TPS40195RGYT

Datasheet

4,368In Stock

Cut Tape

$3.61

$2.67

$2.45

$2.20

Reel

$1.86

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Buck

1 Output

600 kHz

85 %

591 mV to 17 V

20 A

- 40 C

+ 85 C

SMD/SMT

VQFN-16

Reel, Cut Tape, MouseReel

Switching Controllers Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64203DBVR

TPS64203DBVT
Texas Instruments
1: $2.06
756In Stock

Mfr. Part No.
TPS64203DBVT

Mouser Part No
595-TPS64203DBVT

Texas Instruments

Switching Controllers Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64203DBVR

Datasheet

756In Stock

Cut Tape

$2.06

$1.54

$1.40

$1.24

Reel

$1.16

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Buck

1 Output

800 kHz

100 %

1.2 V to 6.5 V

3 A

- 40 C

+ 85 C

SMD/SMT

SOT-23-6

Reel, Cut Tape, MouseReel

Switching Controllers Current-Mode PWM Con troller A 595-UC384 A 595-UC3842D

UC3842DTR
Texas Instruments
1: $1.51
1,919In Stock

Mfr. Part No.
UC3842DTR

Mouser Part No
595-UC3842DTR

Texas Instruments

Switching Controllers Current-Mode PWM Con troller A 595-UC384 A 595-UC3842D

Datasheet

1,919In Stock

Cut Tape

$1.51

$1.10

$0.998

$0.886

Reel

$0.728

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Boost, Buck, Flyback, Forward

1 Output

500 kHz

100 %

5 V

200 mA

0 C

+ 70 C

SMD/SMT

SOIC-14

Reel, Cut Tape, MouseReel

Switching Controllers Current-Mode PWM Con troller ALT 595-UC3 ALT 595-UC3842N

UC3842NG4
Texas Instruments
1: $2.21
891In Stock

Mfr. Part No.
UC3842NG4

Mouser Part No
595-UC3842NG4

Texas Instruments

Switching Controllers Current-Mode PWM Con troller ALT 595-UC3 ALT 595-UC3842N

Datasheet

Product Comments

891In Stock

$2.21

$1.63

$1.47

$1.31

View

Min.: 1
Mult.: 1

Boost, Buck, Flyback, Forward

1 Output

500 kHz

100 %

5 V

200 mA

0 C

+ 70 C

Through Hole

PDIP-8

Tube

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 Mid Input Sync Buck w/Vltg Feed-Fwd

TPS40074RHLR
Texas Instruments
1: $3.90
2,626In Stock

Mfr. Part No.
TPS40074RHLR

Mouser Part No
595-TPS40074RHLR

Texas Instruments

Switching Controllers Mid Input Sync Buck w/Vltg Feed-Fwd

Datasheet

2,626In Stock

Cut Tape

$3.90

$2.97

Reel

$2.97

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Buck

1 Output

100 kHz to 1 MHz

95 %

700 mV to 23 V

20 A

- 40 C

+ 85 C

SMD/SMT

VQFN-20

Reel, Cut Tape, MouseReel

Switching Controllers Current-Mode NB Sys Pwr Controller

TPS51220ATRTVRQ1
Texas Instruments
1: $4.52
2,519In Stock

Mfr. Part No.
TPS51220ATRTVRQ1

Mouser Part No
595-TPS51220ATRTVRQ1

Texas Instruments

Switching Controllers Current-Mode NB Sys Pwr Controller

Datasheet

2,519In Stock

Cut Tape

$4.52

$3.87

$3.55

$3.21

View

Reel

$2.83

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

AEC-Q100

Reel, Cut Tape, MouseReel

Switching Controllers Current-Mode PWM Con troller ALT 595-UC3 ALT 595-UC3842AD8TR

UC3842AD8TRG4
Texas Instruments
1: $0.98
2,912In Stock

Mfr. Part No.
UC3842AD8TRG4

Mouser Part No
595-UC3842AD8TRG4

Texas Instruments

Switching Controllers Current-Mode PWM Con troller ALT 595-UC3 ALT 595-UC3842AD8TR

Datasheet

Product Comments

2,912In Stock

Cut Tape

$0.98

$0.698

$0.629

$0.554

Reel

$0.457

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Boost, Buck, Flyback, Forward

1 Output

500 kHz

100 %

5 V

200 mA

0 C

+ 70 C

SMD/SMT

SOIC-8

Reel, Cut Tape, MouseReel

Switching Controllers Current-Mode PWM Con troller A 595-UC384 A 595-UC3842AD

UC3842ADTR
Texas Instruments
1: $1.26
1,971In Stock

Mfr. Part No.
UC3842ADTR

Mouser Part No
595-UC3842ADTR

Texas Instruments

Switching Controllers Current-Mode PWM Con troller A 595-UC384 A 595-UC3842AD

Datasheet

1,971In Stock

Cut Tape

$1.26

$0.915

$0.828

$0.733

Reel

$0.612

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Boost, Buck, Flyback, Forward

1 Output

500 kHz

100 %

5 V

200 mA

0 C

+ 70 C

SMD/SMT

SOIC-14

Reel, Cut Tape, MouseReel

Switching Controllers BiCMOS Low-Power Cur rent Mode ALT 595-U ALT 595-UCC38C42DR

UCC38C42DRG4
Texas Instruments
1: $1.07
1,613In Stock

Mfr. Part No.
UCC38C42DRG4

Mouser Part No
595-UCC38C42DRG4

Texas Instruments

Switching Controllers BiCMOS Low-Power Cur rent Mode ALT 595-U ALT 595-UCC38C42DR

Learn More

Datasheet

Product Comments

1,613In Stock

Cut Tape

$1.07

$0.77

$0.693

$0.611

Reel

$0.504

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Boost, Buck, Flyback, Forward

1 Output

1 MHz

100 %

18 V

1 A

0 C

+ 70 C

SMD/SMT

SOIC-8

Reel, Cut Tape, MouseReel

Switching Controllers 1-V to 14-V voltage mode synchronous bu A 926-LM2745MTC/NOPB

LM2745MTCX/NOPB
Texas Instruments
1: $3.06
834In Stock

Mfr. Part No.
LM2745MTCX/NOPB

Mouser Part No
926-LM2745MTCX/NOPB

Texas Instruments

Switching Controllers 1-V to 14-V voltage mode synchronous bu A 926-LM2745MTC/NOPB

Datasheet

834In Stock

Cut Tape

$3.06

$2.29

$2.11

$1.90

Reel

$1.58

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Buck

1 Output

50 kHz to 1 MHz

86 %

600 mV to 13.5 V

20 A

- 40 C

+ 125 C

SMD/SMT

TSSOP-14

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