Switching Controllers – Mouser Singapore

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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 3A Step-Down DC/DC Converter

XCM526BC9ADR-G
Torex Semiconductor
3,000: $1.39
Non-Stocked

Mfr. Part No.
XCM526BC9ADR-G

Mouser Part No
865-XCM526BC9ADR-G

Torex Semiconductor

Switching Controllers 3A Step-Down DC/DC Converter

Datasheet

Non-Stocked

Reel

$1.39

$1.37

Min.: 3,000
Mult.: 3,000

: 3,000

Buck

1 Output

1 MHz

100 %

Adjustable

3 A

- 40 C

+ 85 C

SMD/SMT

USP-12B01

Reel

Switching Controllers 3A Step-Down DC/DC Converter

XCM526BD9ADR-G
Torex Semiconductor
3,000: $1.39
Non-Stocked

Mfr. Part No.
XCM526BD9ADR-G

Mouser Part No
865-XCM526BD9ADR-G

Torex Semiconductor

Switching Controllers 3A Step-Down DC/DC Converter

Datasheet

Non-Stocked

Reel

$1.39

$1.37

Min.: 3,000
Mult.: 3,000

: 3,000

Buck

1 Output

1 MHz

100 %

Adjustable

3 A

- 40 C

+ 85 C

SMD/SMT

USP-12B01

Reel

Switching Controllers Low-Vtg Sync Buck Cn tlr A 926-LM1770TMF A 926-LM1770TMFX/NOPB

LM1770TMF/NOPB
Texas Instruments
1,000: $2.05
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
LM1770TMF/NOPB

Mouser Part No
926-LM1770TMF/NOPB

Texas Instruments

Switching Controllers Low-Vtg Sync Buck Cn tlr A 926-LM1770TMF A 926-LM1770TMFX/NOPB

Datasheet

Non-Stocked Lead-Time 16 Weeks

Reel

$2.05

$2.03

$2.01

Min.: 1,000
Mult.: 1,000

: 1,000

Buck

1 Output

100 kHz to 1 MHz

95 %

800 mV to 4.5 V

4 A

- 40 C

+ 125 C

SMD/SMT

SOT-23-5

Reel

Switching Controllers 42V Constant On-Time PFET Switching Cntl A 926-LM25085ASD/NOPB

LM25085ASDE/NOPB
Texas Instruments
1: $4.16
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
LM25085ASDE/NOPB

Mouser Part No
926-LM25085ASDE/NOPB

Texas Instruments

Switching Controllers 42V Constant On-Time PFET Switching Cntl A 926-LM25085ASD/NOPB

Datasheet

Non-Stocked Lead-Time 16 Weeks

Cut Tape

$4.16

$3.10

$2.84

$2.56

Reel

$2.30

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Buck

1 Output

1 MHz

100 %

900 mV to 42 V

1.75 A

- 40 C

+ 125 C

SMD/SMT

LLP-8

Reel, Cut Tape, MouseReel

Switching Controllers Automotive Grade 4.5 -42V Wide Vin Const A 926-LM25085QMYE/NOPB

LM25085QMY/NOPB
Texas Instruments
1: $4.28
Lead-Time 16 Weeks

Mfr. Part No.
LM25085QMY/NOPB

Mouser Part No
926-LM25085QMY/NOPB

Texas Instruments

Switching Controllers Automotive Grade 4.5 -42V Wide Vin Const A 926-LM25085QMYE/NOPB

Datasheet

Lead-Time 16 Weeks

Cut Tape

$4.28

$3.21

$2.95

$2.65

Reel

$2.34

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

MSOP-PowerPad-8

AEC-Q100

Reel, Cut Tape, MouseReel

Switching Controllers 4.5-42V Wide Vin Cu rrent Mode Dual Sync A 926-LM25119PSQE/NOPB

LM25119PSQX/NOPB
Texas Instruments
4,500: $5.52
Non-Stocked Lead-Time 26 Weeks

Mfr. Part No.
LM25119PSQX/NOPB

Mouser Part No
926-LM25119PSQX/NOPB

Texas Instruments

Switching Controllers 4.5-42V Wide Vin Cu rrent Mode Dual Sync A 926-LM25119PSQE/NOPB

Datasheet

Non-Stocked Lead-Time 26 Weeks

Reel

$5.52

Min.: 4,500
Mult.: 4,500

: 4,500

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

Switching Controllers 1-V to 14-V voltage mode synchronous bu A 926-LM2747MTC/NOPB

LM2747MTCX/NOPB
Texas Instruments
1: $3.69
Non-Stocked Lead-Time 26 Weeks

Mfr. Part No.
LM2747MTCX/NOPB

Mouser Part No
926-LM2747MTCX/NOPB

Texas Instruments

Switching Controllers 1-V to 14-V voltage mode synchronous bu A 926-LM2747MTC/NOPB

Datasheet

Non-Stocked Lead-Time 26 Weeks

Cut Tape

$3.69

$3.09

$3.01

Reel

$2.41

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

Switching Controllers 650mA Miniature Adj ustable Step-Down D

LM3205SD-2/NOPB
Texas Instruments
1,000: $1.09
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
LM3205SD-2/NOPB

Mouser Part No
926-LM3205SD-2/NOPB

Texas Instruments

Switching Controllers 650mA Miniature Adj ustable Step-Down D

Datasheet

Non-Stocked Lead-Time 16 Weeks

Reel

$1.09

$1.05

$1.04

Min.: 1,000
Mult.: 1,000

: 1,000

Buck

1 Output

2 MHz

96 %

800 mV to 3.6 V

650 mA

- 30 C

+ 85 C

SMD/SMT

WSON-10

Reel

Switching Controllers 2.9-V to 18-V emula ted peak current mod A 926-LM3495MTC/NOPB

LM3495MTCX/NOPB
Texas Instruments
2,500: $3.85
Non-Stocked Lead-Time 26 Weeks

Mfr. Part No.
LM3495MTCX/NOPB

Mouser Part No
926-LM3495MTCX/NOPB

Texas Instruments

Switching Controllers 2.9-V to 18-V emula ted peak current mod A 926-LM3495MTC/NOPB

Datasheet

Non-Stocked Lead-Time 26 Weeks

Reel

$3.85

Min.: 2,500
Mult.: 2,500

: 2,500

Buck

1 Output

200 kHz to 1.5 MHz

80 %

600 mV to 5.5 V

10 A

- 40 C

+ 125 C

SMD/SMT

TSSOP-16

Reel

Switching Controllers 4.5-V to 18-V scala ble 2-phase synchron A 926-LM3754SQX/NOPB

LM3754SQ/NOPB
Texas Instruments
1,000: $8.79
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
LM3754SQ/NOPB

Mouser Part No
926-LM3754SQ/NOPB

Texas Instruments

Switching Controllers 4.5-V to 18-V scala ble 2-phase synchron A 926-LM3754SQX/NOPB

Datasheet

Non-Stocked Lead-Time 16 Weeks

Reel

$8.79

Quote

Min.: 1,000
Mult.: 1,000

: 1,000

Buck

2 Output

200 kHz to 1 MHz

81 %

600 mV to 3.6 V

50 A

- 5 C

+ 125 C

SMD/SMT

WQFN-32

Reel

Switching Controllers 4V-60V Input Current Sync Step-Down Cntrl

MP2908AGF-P
Monolithic Power Systems (MPS)
500: $2.52
Non-Stocked Lead-Time 57 Weeks

Mfr. Part No.
MP2908AGF-P

Mouser Part No
946-MP2908AGF-P

Monolithic Power Systems (MPS)

Switching Controllers 4V-60V Input Current Sync Step-Down Cntrl

Datasheet

Non-Stocked Lead-Time 57 Weeks

Reel

$2.52

Min.: 500
Mult.: 500

: 500

Buck

1 Output

1 MHz

99.5 %

24 V

- 40 C

+ 125 C

SMD/SMT

TSSOP-EP-20

Reel

Switching Controllers 4V-40V Input Current Mode Sync StpDwn Con

MP2918GF-Z
Monolithic Power Systems (MPS)
1: $2.95
Non-Stocked Lead-Time 50 Weeks

Mfr. Part No.
MP2918GF-Z

Mouser Part No
946-MP2918GF-Z

Monolithic Power Systems (MPS)

Switching Controllers 4V-40V Input Current Mode Sync StpDwn Con

Datasheet

Non-Stocked Lead-Time 50 Weeks

Cut Tape

$2.95

$2.18

$1.99

$1.77

View

Reel

$1.62

Min.: 1
Mult.: 1

: 2,500

Buck

1 Output

430 kHz

99.5 %

25 V

13.2 uA

- 40 C

+ 125 C

SMD/SMT

TSSOP-20

Reel, Cut Tape

Switching Controllers Industrial Grade, 4V-60V Input, Current Mode Synchronous Step-Down Controller

MPQ2908AGF-P
Monolithic Power Systems (MPS)
500: $3.02
Non-Stocked Lead-Time 37 Weeks

Mfr. Part No.
MPQ2908AGF-P

Mouser Part No
946-MPQ2908AGF-P

Monolithic Power Systems (MPS)

Switching Controllers Industrial Grade, 4V-60V Input, Current Mode Synchronous Step-Down Controller

Datasheet

Non-Stocked Lead-Time 37 Weeks

Reel

$3.02

Min.: 500
Mult.: 500

: 500

Buck

1 Output

100 kHz to 1 MHz

99.5 %

25 V

- 40 C

+ 125 C

SMD/SMT

TSSOP-EP-20

Reel

Switching Controllers 4V-60V Input, Current Mode Synchronous Step-Down Controller, Wettable Flank Package.

MPQ2908AGLE-AEC1-P
Monolithic Power Systems (MPS)
500: $3.14
Non-Stocked Lead-Time 44 Weeks

Mfr. Part No.
MPQ2908AGLE-AEC1-P

Mouser Part No
946-MPQ2908AGLEAEC1P

Monolithic Power Systems (MPS)

Switching Controllers 4V-60V Input, Current Mode Synchronous Step-Down Controller, Wettable Flank Package.

Datasheet

Non-Stocked Lead-Time 44 Weeks

Reel

$3.14

Min.: 500
Mult.: 500

: 500

Buck

1 Output

100 kHz to 1 MHz

99.5 %

25 V

- 40 C

+ 125 C

SMD/SMT

QFN-20

AEC-Q100

Reel

Switching Controllers 4V-60V Input, Current Mode Synchronous Step-Down Controller, Wettable Flank Package.

MPQ2908AGLE-AEC1-Z
Monolithic Power Systems (MPS)
5,000: $2.94
Non-Stocked Lead-Time 37 Weeks

Mfr. Part No.
MPQ2908AGLE-AEC1-Z

Mouser Part No
946-MPQ2908AGLEAEC1Z

Monolithic Power Systems (MPS)

Switching Controllers 4V-60V Input, Current Mode Synchronous Step-Down Controller, Wettable Flank Package.

Datasheet

Non-Stocked Lead-Time 37 Weeks

Reel

$2.94

Min.: 5,000
Mult.: 5,000

: 5,000

Buck

1 Output

100 kHz to 1 MHz

99.5 %

25 V

- 40 C

+ 125 C

SMD/SMT

QFN-20

AEC-Q100

Reel

Switching Controllers Automotive Grade.4V-40V Input, Current Mode Synchronous Step-Down Controller

MPQ2918GF-AEC1-P
Monolithic Power Systems (MPS)
500: $2.50
Non-Stocked Lead-Time 44 Weeks

Mfr. Part No.
MPQ2918GF-AEC1-P

Mouser Part No
946-MPQ2918GF-AEC1-P

Monolithic Power Systems (MPS)

Switching Controllers Automotive Grade.4V-40V Input, Current Mode Synchronous Step-Down Controller

Datasheet

Non-Stocked Lead-Time 44 Weeks

Reel

$2.50

Min.: 500
Mult.: 500

: 500

Buck

1 Output

100 kHz to 1 MHz

99.5 %

25 V

SMD/SMT

TSSOP-EP-20

AEC-Q100

Reel

Switching Controllers Automotive Grade.4V-40V Input, Current Mode Synchronous Step-Down Controller

MPQ2918GF-AEC1-Z
Monolithic Power Systems (MPS)
2,500: $2.24
Non-Stocked Lead-Time 37 Weeks

Mfr. Part No.
MPQ2918GF-AEC1-Z

Mouser Part No
946-MPQ2918GF-AEC1-Z

Monolithic Power Systems (MPS)

Switching Controllers Automotive Grade.4V-40V Input, Current Mode Synchronous Step-Down Controller

Datasheet

Non-Stocked Lead-Time 37 Weeks

Reel

$2.24

Min.: 2,500
Mult.: 2,500

: 2,500

Buck

1 Output

100 kHz to 1 MHz

99.5 %

25 V

- 40 C

+ 125 C

SMD/SMT

TSSOP-20

AEC-Q100

Reel

Switching Controllers Industrial Grade.4V-40V Input, Current Mode Synchronous Step-Down Controller

MPQ2918GF-P
Monolithic Power Systems (MPS)
500: $2.27
Non-Stocked Lead-Time 37 Weeks

Mfr. Part No.
MPQ2918GF-P

Mouser Part No
946-MPQ2918GF-P

Monolithic Power Systems (MPS)

Switching Controllers Industrial Grade.4V-40V Input, Current Mode Synchronous Step-Down Controller

Datasheet

Non-Stocked Lead-Time 37 Weeks

Reel

$2.27

Min.: 500
Mult.: 500

: 500

Buck

1 Output

100 kHz to 1 MHz

99.5 %

25 V

SMD/SMT

TSSOP-EP-20

Reel

Switching Controllers Industrial Grade.4V-40V Input, Current Mode Synchronous Step-Down Controller

MPQ2918GF-Z
Monolithic Power Systems (MPS)
2,500: $1.81
Non-Stocked Lead-Time 30 Weeks

Mfr. Part No.
MPQ2918GF-Z

Mouser Part No
946-MPQ2918GF-Z

Monolithic Power Systems (MPS)

Switching Controllers Industrial Grade.4V-40V Input, Current Mode Synchronous Step-Down Controller

Datasheet

Non-Stocked Lead-Time 30 Weeks

Reel

$1.81

Min.: 2,500
Mult.: 2,500

: 2,500

Buck

1 Output

100 kHz to 1 MHz

99.5 %

25 V

- 40 C

+ 125 C

SMD/SMT

TSSOP-20

Reel

Switching Controllers 4V-40V Input, Current Mode Synchronous Step-Down Controller, Wettable Flank Package.

MPQ2918GLE-AEC1-P
Monolithic Power Systems (MPS)
500: $2.46
Non-Stocked Lead-Time 44 Weeks

Mfr. Part No.
MPQ2918GLE-AEC1-P

Mouser Part No
946-MPQ2918GLEAEC1P

Monolithic Power Systems (MPS)

Switching Controllers 4V-40V Input, Current Mode Synchronous Step-Down Controller, Wettable Flank Package.

Datasheet

Non-Stocked Lead-Time 44 Weeks

Reel

$2.46

Min.: 500
Mult.: 500

: 500

Buck

1 Output

100 kHz to 1 MHz

99.5 %

25 V

- 40 C

+ 125 C

SMD/SMT

QFN-20

AEC-Q100

Reel

Switching Controllers 4V-40V Input, Current Mode Synchronous Step-Down Controller, Wettable Flank Package.

MPQ2918GLE-AEC1-Z
Monolithic Power Systems (MPS)
5,000: $2.15
Non-Stocked Lead-Time 37 Weeks

Mfr. Part No.
MPQ2918GLE-AEC1-Z

Mouser Part No
946-MPQ2918GLEAEC1Z

Monolithic Power Systems (MPS)

Switching Controllers 4V-40V Input, Current Mode Synchronous Step-Down Controller, Wettable Flank Package.

Datasheet

Non-Stocked Lead-Time 37 Weeks

Reel

$2.15

Min.: 5,000
Mult.: 5,000

: 5,000

Buck

1 Output

100 kHz to 1 MHz

99.5 %

25 V

- 40 C

+ 125 C

SMD/SMT

QFN-20

AEC-Q100

Reel

Switching Controllers SYN DC/DC CONTROLLER

SC1102CSTRT
Semtech
2,500: $1.96
Non-Stocked

Mfr. Part No.
SC1102CSTRT

Mouser Part No
947-SC1102CSTRT

Semtech

Switching Controllers SYN DC/DC CONTROLLER

Datasheet

Non-Stocked

Reel

$1.96

Min.: 2,500
Mult.: 2,500

: 2,500

Buck

1 Output

200 kHz

95 %

1.27 V

15 A

0 C

+ 70 C

SMD/SMT

SOIC-14

Reel

Switching Controllers SC1104AISTRT--Tape and Reel

SC1104AISTRT
Semtech
2,500: $1.37
Non-Stocked

Mfr. Part No.
SC1104AISTRT

Mouser Part No
947-SC1104AISTRT

Semtech

Switching Controllers SC1104AISTRT--Tape and Reel

Datasheet

Non-Stocked

Reel

$1.37

Min.: 2,500
Mult.: 2,500

: 2,500

Buck

1 Output

300 kHz

95 %

1 V

20 A

- 40 C

+ 85 C

SMD/SMT

SOIC-8

Reel

Switching Controllers DUAL SYNCH D//DC CNTRL SHR CIR

SC1176ASWTRT
Semtech
1: $3.88
Non-Stocked

Mfr. Part No.
SC1176ASWTRT

Mouser Part No
947-SC1176ASWTRT

Semtech

Switching Controllers DUAL SYNCH D//DC CNTRL SHR CIR

Datasheet

Non-Stocked

Cut Tape

$3.88

$2.88

$2.64

$2.37

$2.24

Reel

$1.90

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Buck

2 Output

300 kHz

95 %

2.75 V

15 A

0 C

+ 70 C

SMD/SMT

SOIC-20

Reel, Cut Tape, MouseReel

Switching Controllers SYN DC/DC CONTROLLER

SC2602LSTRT
Semtech
2,500: $1.41
Non-Stocked

Mfr. Part No.
SC2602LSTRT

Mouser Part No
947-SC2602LSTRT

Semtech

Switching Controllers SYN DC/DC CONTROLLER

Datasheet

Non-Stocked

Reel

$1.41

Min.: 2,500
Mult.: 2,500

: 2,500

Buck

1 Output

200 kHz

95 %

800 mV

20 A

- 40 C

+ 85 C

SMD/SMT

SOIC-14

Reel

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