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 Buck DC/DC Controller

R1223N332H-TR-FE
Nisshinbo
3,000: $1.04
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R1223N332H-TR-FE

Mouser Part No
848-R1223N332HTRFE

Nisshinbo

Switching Controllers Buck DC/DC Controller

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.04

$1.02

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

: 3,000

Buck

1 Output

500 kHz

100 %

3.3 V

- 40 C

+ 85 C

SMD/SMT

SOT-23-5

Reel

Switching Controllers Buck DC/DC Controller

R1224N102G-TR-FE
Nisshinbo
3,000: $1.06
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R1224N102G-TR-FE

Mouser Part No
848-R1224N102GTRFE

Nisshinbo

Switching Controllers Buck DC/DC Controller

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.06

$1.04

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

: 3,000

Buck

1 Output

300 kHz

100 %

1 V to 18.5 V

- 40 C

+ 85 C

SMD/SMT

SOT-23-5

Reel

Switching Controllers Buck DC/DC Controller

R1224N102H-TR-FE
Nisshinbo
3,000: $1.06
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R1224N102H-TR-FE

Mouser Part No
848-R1224N102HTRFE

Nisshinbo

Switching Controllers Buck DC/DC Controller

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.06

$1.04

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

: 3,000

Buck

1 Output

500 kHz

100 %

1 V to 18.5 V

- 40 C

+ 85 C

SMD/SMT

SOT-23-5

Reel

Switching Controllers Buck DC/DC Controller

R1224N122F-TR-FE
Nisshinbo
3,000: $1.06
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R1224N122F-TR-FE

Mouser Part No
848-R1224N122FTRFE

Nisshinbo

Switching Controllers Buck DC/DC Controller

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.06

$1.04

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

: 3,000

Buck

1 Output

500 kHz

100 %

1.2 V

- 40 C

+ 85 C

SMD/SMT

SOT-23-5

Reel

Switching Controllers 18.5V Input PWM/VFM Step-down DCDC Controller

R1224N152G-TR-FE
Nisshinbo
3,000: $1.06
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R1224N152G-TR-FE

Mouser Part No
848-R1224N152G-TR-FE

Nisshinbo

Switching Controllers 18.5V Input PWM/VFM Step-down DCDC Controller

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.06

$1.04

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

: 3,000

Buck

1 Output

300 kHz

100 %

1.5 V

50 mA

- 40 C

+ 85 C

SMD/SMT

SOT-23-5

Reel

Switching Controllers Buck DC/DC Controller

R1224N152H-TR-FE
Nisshinbo
3,000: $1.06
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R1224N152H-TR-FE

Mouser Part No
848-R1224N152HTRFE

Nisshinbo

Switching Controllers Buck DC/DC Controller

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.06

$1.04

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

: 3,000

Buck

1 Output

500 kHz

100 %

1.5 V

- 40 C

+ 85 C

SMD/SMT

SOT-23-5

Reel

Switching Controllers Buck DC/DC Controller

R1224N182E-TR-FE
Nisshinbo
3,000: $1.06
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R1224N182E-TR-FE

Mouser Part No
848-R1224N182ETRFE

Nisshinbo

Switching Controllers Buck DC/DC Controller

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.06

$1.04

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

: 3,000

Buck

1 Output

300 kHz

100 %

1.8 V

- 40 C

+ 85 C

SMD/SMT

SOT-23-5

Reel

Switching Controllers Buck DC/DC Controller

R1224N182F-TR-FE
Nisshinbo
3,000: $1.06
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R1224N182F-TR-FE

Mouser Part No
848-R1224N182FTRFE

Nisshinbo

Switching Controllers Buck DC/DC Controller

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.06

$1.04

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

: 3,000

Buck

1 Output

500 kHz

100 %

1.8 V

- 40 C

+ 85 C

SMD/SMT

SOT-23-5

Reel

Switching Controllers 18.5V Input PWM/VFM Step-down DCDC Controller

R1224N182G-TR-FE
Nisshinbo
3,000: $1.06
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R1224N182G-TR-FE

Mouser Part No
848-R1224N182G-TR-FE

Nisshinbo

Switching Controllers 18.5V Input PWM/VFM Step-down DCDC Controller

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.06

$1.04

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

: 3,000

Buck

1 Output

300 kHz

100 %

1.8 V

50 mA

- 40 C

+ 85 C

SMD/SMT

SOT-23-5

Reel

Switching Controllers Buck DC/DC Controller

R1224N182L-TR-FE
Nisshinbo
3,000: $1.06
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R1224N182L-TR-FE

Mouser Part No
848-R1224N182LTRFE

Nisshinbo

Switching Controllers Buck DC/DC Controller

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.06

$1.04

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

: 3,000

Buck

1 Output

180 kHz

100 %

1.8 V

- 40 C

+ 85 C

SMD/SMT

SOT-23-5

Reel

Switching Controllers Buck DC/DC Controller

R1224N252E-TR-FE
Nisshinbo
3,000: $1.06
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R1224N252E-TR-FE

Mouser Part No
848-R1224N252ETRFE

Nisshinbo

Switching Controllers Buck DC/DC Controller

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.06

$1.04

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

: 3,000

Buck

1 Output

300 kHz

100 %

2.5 V

- 40 C

+ 85 C

SMD/SMT

SOT-23-5

Reel

Switching Controllers 18.5V Input PWM/VFM Step-down DCDC Controller

R1224N252H-TR-FE
Nisshinbo
3,000: $1.06
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R1224N252H-TR-FE

Mouser Part No
848-R1224N252H-TR-FE

Nisshinbo

Switching Controllers 18.5V Input PWM/VFM Step-down DCDC Controller

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.06

$1.04

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

: 3,000

Buck

1 Output

500 kHz

100 %

2.5 V

50 mA

- 40 C

+ 85 C

SMD/SMT

SOT-23-5

Reel

Switching Controllers Buck DC/DC Controller

R1224N302L-TR-FE
Nisshinbo
3,000: $1.06
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R1224N302L-TR-FE

Mouser Part No
848-R1224N302LTRFE

Nisshinbo

Switching Controllers Buck DC/DC Controller

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.06

$1.04

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

: 3,000

Buck

1 Output

180 kHz

100 %

3 V

- 40 C

+ 85 C

SMD/SMT

SOT-23-5

Reel

Switching Controllers 18.5V Input PWM/VFM Step-down DCDC Controller

R1224N332E-TR-FE
Nisshinbo
3,000: $1.06
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R1224N332E-TR-FE

Mouser Part No
848-R1224N332E-TR-FE

Nisshinbo

Switching Controllers 18.5V Input PWM/VFM Step-down DCDC Controller

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.06

$1.04

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

: 3,000

Buck

1 Output

300 kHz

100 %

3.3 V

50 mA

- 40 C

+ 85 C

SMD/SMT

SOT-23-5

Reel

Switching Controllers Buck DC/DC Controller

R1224N332F-TR-FE
Nisshinbo
3,000: $1.06
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R1224N332F-TR-FE

Mouser Part No
848-R1224N332FTRFE

Nisshinbo

Switching Controllers Buck DC/DC Controller

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.06

$1.04

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

: 3,000

Buck

1 Output

500 kHz

100 %

3.3 V

- 40 C

+ 85 C

SMD/SMT

SOT-23-5

Reel

Switching Controllers Buck DC/DC Controller

R1224N332G-TR-FE
Nisshinbo
3,000: $1.06
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R1224N332G-TR-FE

Mouser Part No
848-R1224N332GTRFE

Nisshinbo

Switching Controllers Buck DC/DC Controller

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.06

$1.04

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

: 3,000

Buck

1 Output

300 kHz

100 %

3.3 V

- 40 C

+ 85 C

SMD/SMT

SOT-23-5

Reel

Switching Controllers Buck DC/DC Controller

R1224N332H-TR-FE
Nisshinbo
3,000: $1.06
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R1224N332H-TR-FE

Mouser Part No
848-R1224N332HTRFE

Nisshinbo

Switching Controllers Buck DC/DC Controller

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.06

$1.04

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

: 3,000

Buck

1 Output

500 kHz

100 %

3.3 V

- 40 C

+ 85 C

SMD/SMT

SOT-23-5

Reel

Switching Controllers Buck DC/DC Controller

R1224N332L-TR-FE
Nisshinbo
3,000: $1.06
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R1224N332L-TR-FE

Mouser Part No
848-R1224N332LTRFE

Nisshinbo

Switching Controllers Buck DC/DC Controller

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.06

$1.04

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

: 3,000

Buck

1 Output

180 kHz

100 %

3.3 V

- 40 C

+ 85 C

SMD/SMT

SOT-23-5

Reel

Switching Controllers Buck DC/DC Controller

R1224N402G-TR-FE
Nisshinbo
3,000: $1.06
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R1224N402G-TR-FE

Mouser Part No
848-R1224N402GTRFE

Nisshinbo

Switching Controllers Buck DC/DC Controller

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.06

$1.04

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

: 3,000

Buck

1 Output

300 kHz

100 %

4 V

- 40 C

+ 85 C

SMD/SMT

SOT-23-5

Reel

Switching Controllers Buck DC/DC Controller

R1224N502F-TR-FE
Nisshinbo
3,000: $1.06
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R1224N502F-TR-FE

Mouser Part No
848-R1224N502FTRFE

Nisshinbo

Switching Controllers Buck DC/DC Controller

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.06

$1.04

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

: 3,000

Buck

1 Output

500 kHz

100 %

5 V

- 40 C

+ 85 C

SMD/SMT

SOT-23-5

Reel

Switching Controllers 18.5V Input PWM/VFM Step-down DCDC Controller

R1224N502G-TR-FE
Nisshinbo
3,000: $1.06
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R1224N502G-TR-FE

Mouser Part No
848-R1224N502G-TR-FE

Nisshinbo

Switching Controllers 18.5V Input PWM/VFM Step-down DCDC Controller

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.06

$1.04

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

: 3,000

Buck

1 Output

300 kHz

100 %

5 V

50 mA

- 40 C

+ 85 C

SMD/SMT

SOT-23-5

Reel

Switching Controllers 18.5V Input PWM/VFM Step-down DCDC Controller

R1224N502H-TR-FE
Nisshinbo
3,000: $1.06
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R1224N502H-TR-FE

Mouser Part No
848-R1224N502H-TR-FE

Nisshinbo

Switching Controllers 18.5V Input PWM/VFM Step-down DCDC Controller

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.06

$1.04

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

: 3,000

Buck

1 Output

500 kHz

100 %

5 V

50 mA

- 40 C

+ 85 C

SMD/SMT

SOT-23-5

Reel

Switching Controllers Buck DC/DC Controller

R1224N502L-TR-FE
Nisshinbo
3,000: $1.06
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
R1224N502L-TR-FE

Mouser Part No
848-R1224N502LTRFE

Nisshinbo

Switching Controllers Buck DC/DC Controller

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$1.06

$1.04

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

: 3,000

Buck

1 Output

180 kHz

100 %

5 V

- 40 C

+ 85 C

SMD/SMT

SOT-23-5

Reel

Switching Controllers High Perf Sync Buck Cntrlr A 926-LM27402 A 926-LM27402MHX/NOPB

LM27402MH/NOPB
Texas Instruments
1: $5.92
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
LM27402MH/NOPB

Mouser Part No
926-LM27402MH/NOPB

Texas Instruments

Switching Controllers High Perf Sync Buck Cntrlr A 926-LM27402 A 926-LM27402MHX/NOPB

Datasheet

Non-Stocked Lead-Time 9 Weeks

$5.92

$4.49

$3.75

$3.59

View

Min.: 1
Mult.: 1

Buck

1 Output

200 kHz to 1.2 MHz

95 %

600 mV to 18.6 V

30 A

- 40 C

+ 125 C

SMD/SMT

HTSSOP-16

Tube

Switching Controllers 3-V to 20-V voltage mode synchronous bu A 926-LM27402SQ/NOPB

LM27402SQX/NOPB
Texas Instruments
4,500: $2.80
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
LM27402SQX/NOPB

Mouser Part No
926-LM27402SQX/NOPB

Texas Instruments

Switching Controllers 3-V to 20-V voltage mode synchronous bu A 926-LM27402SQ/NOPB

Datasheet

Non-Stocked Lead-Time 9 Weeks

Reel

$2.80

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

: 4,500

Buck

1 Output

200 kHz to 1.2 MHz

95 %

600 mV to 18.6 V

30 A

- 40 C

+ 125 C

SMD/SMT

WQFN-16

Reel

Buck Converters for Power Over Ethernet

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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