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 InTune Digital Point of Load Controller

MAX15303AA00+CM
Analog Devices / Maxim Integrated
1: $16.97
126In Stock

Mfr. Part No.
MAX15303AA00+CM

Mouser Part No
700-MAX15303AA00+CM

Analog Devices / Maxim Integrated

Switching Controllers InTune Digital Point of Load Controller

Datasheet

126In Stock

$16.97

$13.34

$11.86

$11.41

Min.: 1
Mult.: 1
Max.: 126

Buck

1 Output

300 kHz to 1 MHz

95 %

500 mV to 5.25 V

40 A

- 40 C

+ 85 C

SMD/SMT

TQFN-40

Tube

Switching Controllers 5V/3.3V or Adjustable, 100 Duty Cycle,

MAX1626ESA+
Analog Devices / Maxim Integrated
1: $7.26
243In Stock

Mfr. Part No.
MAX1626ESA+

Mouser Part No
700-MAX1626ESA

Analog Devices / Maxim Integrated

Switching Controllers 5V/3.3V or Adjustable, 100 Duty Cycle,

Datasheet

243In Stock

$7.26

$5.54

$5.05

$4.60

Min.: 1
Mult.: 1
Max.: 243

Buck

1 Output

300 kHz

100 %

3.3 V to 5 V

3 A

- 40 C

+ 85 C

SMD/SMT

SOIC-Narrow-8

Tube

Switching Controllers High-Speed Step-Down Controller with Syn

MAX1638EAG+
Analog Devices / Maxim Integrated
1: $23.83
7In Stock

Mfr. Part No.
MAX1638EAG+

Mouser Part No
700-MAX1638EAG

Analog Devices / Maxim Integrated

Switching Controllers High-Speed Step-Down Controller with Syn

Datasheet

7In Stock

$23.83

Min.: 1
Mult.: 1
Max.: 7

Buck

1 Output

1 MHz

90 %

1.3 V to 5.5 V

35 A

- 40 C

+ 85 C

SMD/SMT

SSOP-24

Tube

Switching Controllers Adjustable-Output, Switch-Mode Current S

MAX1640EEE+T
Analog Devices / Maxim Integrated
1: $15.46
172In Stock

Mfr. Part No.
MAX1640EEE+T

Mouser Part No
700-MAX1640EEET

Analog Devices / Maxim Integrated

Switching Controllers Adjustable-Output, Switch-Mode Current S

Datasheet

172In Stock

Cut Tape

$15.46

$12.12

$11.27

$10.35

Reel

$10.35

MouseReel Available

Min.: 1
Mult.: 1
Max.: 172

: 2,500

Buck

1 Output

500 kHz

100 %

2 V to 24 V

- 40 C

+ 85 C

SMD/SMT

QSOP-16

Reel, Cut Tape, MouseReel

Switching Controllers High-Efficiency, PWM, Step-Down DC-DC Co

MAX1653ESE+
Analog Devices / Maxim Integrated
1: $18.12
98In Stock

Mfr. Part No.
MAX1653ESE+

Mouser Part No
700-MAX1653ESE

Analog Devices / Maxim Integrated

Switching Controllers High-Efficiency, PWM, Step-Down DC-DC Co

Datasheet

98In Stock

$18.12

$14.21

$12.96

Min.: 1
Mult.: 1
Max.: 98

Buck

1 Output

300 kHz

99 %

2.5 V to 5.5 V

10 A

- 40 C

+ 85 C

SMD/SMT

SOIC-Narrow-16

Tube

Switching Controllers High-Efficiency, PWM, Step-Down DC-DC Co

MAX1655EEE+
Analog Devices / Maxim Integrated
1: $20.59
100In Stock

Mfr. Part No.
MAX1655EEE+

Mouser Part No
700-MAX1655EEE

Analog Devices / Maxim Integrated

Switching Controllers High-Efficiency, PWM, Step-Down DC-DC Co

Datasheet

100In Stock

$20.59

$16.13

$15.01

$13.78

Min.: 1
Mult.: 1
Max.: 100

Buck

1 Output

300 kHz

99 %

2.5 V to 5.5 V

10 A

- 40 C

+ 85 C

SMD/SMT

QSOP-16

Tube

Switching Controllers High-Efficiency, PWM, Step-Down DC-DC Co

MAX1655ESE+
Analog Devices / Maxim Integrated
1: $17.54
49In Stock

Mfr. Part No.
MAX1655ESE+

Mouser Part No
700-MAX1655ESE

Analog Devices / Maxim Integrated

Switching Controllers High-Efficiency, PWM, Step-Down DC-DC Co

Datasheet

49In Stock

$17.54

$13.79

Min.: 1
Mult.: 1
Max.: 49

Buck

1 Output

300 kHz

99 %

2.5 V to 5.5 V

10 A

- 40 C

+ 85 C

SMD/SMT

SOIC-Narrow-16

Tube

Switching Controllers 2MHz, 36V, Dual Buck with Preboost and 20 A Quiescent Current

MAX16930BATLS/V+
Analog Devices / Maxim Integrated
1: $27.49
15In Stock

Mfr. Part No.
MAX16930BATLS/V+

Mouser Part No
700-MAX16930BATLS/V+

Analog Devices / Maxim Integrated

Switching Controllers 2MHz, 36V, Dual Buck with Preboost and 20 A Quiescent Current

Datasheet

15In Stock

$27.49

$21.84

Min.: 1
Mult.: 1
Max.: 15

Buck

1 Output

200 kHz to 2.2 MHz

95 %

Adjustable

10 A

- 40 C

+ 125 C

SMD/SMT

TQFN-40

AEC-Q100

Tube

Switching Controllers High-Speed Step-Down Controller for Note

MAX1714AEEP+
Analog Devices / Maxim Integrated
1: $17.58
57In Stock

Mfr. Part No.
MAX1714AEEP+

Mouser Part No
700-MAX1714AEEP

Analog Devices / Maxim Integrated

Switching Controllers High-Speed Step-Down Controller for Note

Datasheet

57In Stock

$17.58

$13.63

$12.66

Min.: 1
Mult.: 1
Max.: 57

Buck

1 Output

600 kHz

100 %

1 V to 5.5 V

3 A

- 40 C

+ 85 C

SMD/SMT

QSOP-20

Tube

Switching Controllers High-Voltage, Step-Down DC-DC Controller in MAX

MAX1744AUB+
Analog Devices / Maxim Integrated
1: $14.04
87In Stock

Mfr. Part No.
MAX1744AUB+

Mouser Part No
700-MAX1744AUB

Analog Devices / Maxim Integrated

Switching Controllers High-Voltage, Step-Down DC-DC Controller in MAX

Datasheet

87In Stock

$14.04

$10.96

$9.71

Min.: 1
Mult.: 1
Max.: 87

Buck

1 Output

330 kHz

100 %

3.3 V, 5 V

10 A

- 40 C

+ 125 C

SMD/SMT

UMAX-10

Tube

Switching Controllers High-Voltage, Step-Down DC-DC Controller in MAX

MAX1744EUB+
Analog Devices / Maxim Integrated
1: $12.73
172In Stock

Mfr. Part No.
MAX1744EUB+

Mouser Part No
700-MAX1744EUB

Analog Devices / Maxim Integrated

Switching Controllers High-Voltage, Step-Down DC-DC Controller in MAX

Datasheet

172In Stock

$12.73

$9.87

$8.87

$8.26

Min.: 1
Mult.: 1
Max.: 172

Buck

1 Output

330 kHz

100 %

3.3 V, 5 V

10 A

- 40 C

+ 85 C

SMD/SMT

UMAX-10

Tube

Switching Controllers High-Voltage, Step-Down DC-DC Controller in MAX

MAX1745AUB+
Analog Devices / Maxim Integrated
1: $14.27
68In Stock

Mfr. Part No.
MAX1745AUB+

Mouser Part No
700-MAX1745AUB

Analog Devices / Maxim Integrated

Switching Controllers High-Voltage, Step-Down DC-DC Controller in MAX

Datasheet

68In Stock

$14.27

$11.11

$9.96

Min.: 1
Mult.: 1
Max.: 68

Buck

1 Output

330 kHz

100 %

1.25 V to 18 V

10 A

- 40 C

+ 125 C

SMD/SMT

UMAX-10

Tube

Switching Controllers High-Voltage, Step-Down DC-DC Controller in MAX

MAX1745EUB+
Analog Devices / Maxim Integrated
1: $13.94
5In Stock

Mfr. Part No.
MAX1745EUB+

Mouser Part No
700-MAX1745EUB

Analog Devices / Maxim Integrated

Switching Controllers High-Voltage, Step-Down DC-DC Controller in MAX

Datasheet

5In Stock

$13.94

Min.: 1
Mult.: 1
Max.: 5

Buck

1 Output

330 kHz

100 %

1.25 V to 18 V

10 A

- 40 C

+ 85 C

SMD/SMT

UMAX-10

Tube

Switching Controllers High-Voltage, Step-Down DC-DC Controller in MAX

MAX1745EUB/V+
Analog Devices / Maxim Integrated
1: $14.35
35In Stock

Mfr. Part No.
MAX1745EUB/V+

Mouser Part No
700-MAX1745EUB/V+

Analog Devices / Maxim Integrated

Switching Controllers High-Voltage, Step-Down DC-DC Controller in MAX

Datasheet

35In Stock

$14.35

$11.21

Min.: 1
Mult.: 1
Max.: 35

Buck

1 Output

330 kHz

100 %

1.25 V to 18 V

10 A

- 40 C

+ 85 C

SMD/SMT

UMAX-10

AEC-Q100

Tube

Switching Controllers High-Voltage, Step-Down DC-DC Controller in MAX

MAX1745EUB+T
Analog Devices / Maxim Integrated
1: $14.32
885In Stock

Mfr. Part No.
MAX1745EUB+T

Mouser Part No
700-MAX1745EUBT

Analog Devices / Maxim Integrated

Switching Controllers High-Voltage, Step-Down DC-DC Controller in MAX

Datasheet

885In Stock

Cut Tape

$14.32

$11.18

$10.39

$9.53

View

Reel

$8.88

MouseReel Available

Min.: 1
Mult.: 1
Max.: 885

: 2,500

Buck

1 Output

330 kHz

100 %

1.25 V to 18 V

10 A

- 40 C

+ 85 C

SMD/SMT

UMAX-10

Reel, Cut Tape, MouseReel

Switching Controllers 3A, 1MHz, DDR Memory Termination Supply

MAX1809EEE+
Analog Devices / Maxim Integrated
1: $20.69
60In Stock

Mfr. Part No.
MAX1809EEE+

Mouser Part No
700-MAX1809EEE

Analog Devices / Maxim Integrated

Switching Controllers 3A, 1MHz, DDR Memory Termination Supply

Datasheet

60In Stock

$20.69

$16.35

$15.27

Min.: 1
Mult.: 1
Max.: 60

Buck

1 Output

1 MHz

100 %

1.1 V to 5.5 V

3 A

- 40 C

+ 85 C

SMD/SMT

QSOP-16

Tube

Switching Controllers Low-Cost, High-Frequency, Current-Mode P

MAX1954EUB+
Analog Devices / Maxim Integrated
1: $10.89
49In Stock

Mfr. Part No.
MAX1954EUB+

Mouser Part No
700-MAX1954EUB

Analog Devices / Maxim Integrated

Switching Controllers Low-Cost, High-Frequency, Current-Mode P

Datasheet

49In Stock

$10.89

$8.43

Min.: 1
Mult.: 1
Max.: 49

Boost, Buck

1 Output

300 kHz

89 %

800 mV to 11.35 V

25 A

- 40 C

+ 85 C

SMD/SMT

USOP-10

Tube

Switching Controllers 2.35V to 5.5V, 0.5 Accurate, 1MHz PWM S

MAX1960EEP+
Analog Devices / Maxim Integrated
1: $13.16
103In Stock

Mfr. Part No.
MAX1960EEP+

Mouser Part No
700-MAX1960EEP

Analog Devices / Maxim Integrated

Switching Controllers 2.35V to 5.5V, 0.5 Accurate, 1MHz PWM S

Datasheet

103In Stock

$13.16

$10.25

$9.07

$8.91

Min.: 1
Mult.: 1
Max.: 103

Buck

1 Output

500 kHz, 1 MHz

92 %

800 mV to 4.95 V

20 A

- 40 C

+ 85 C

SMD/SMT

QSOP-20

Tube

Switching Controllers Low-Cost Voltage-Mode PWM Step-Down Cont

MAX1967EUB+
Analog Devices / Maxim Integrated
1: $8.79
49In Stock

Mfr. Part No.
MAX1967EUB+

Mouser Part No
700-MAX1967EUB

Analog Devices / Maxim Integrated

Switching Controllers Low-Cost Voltage-Mode PWM Step-Down Cont

Datasheet

49In Stock

$8.79

$6.75

Min.: 1
Mult.: 1
Max.: 49

Buck

1 Output

100 kHz

95 %

800 mV

2 A

- 40 C

+ 85 C

SMD/SMT

UMAX-10

Tube

Switching Controllers Step-Down Controllers with Synchronous R

MAX797CSE+
Analog Devices / Maxim Integrated
1: $26.17
68In Stock

Mfr. Part No.
MAX797CSE+

Mouser Part No
700-MAX797CSE

Analog Devices / Maxim Integrated

Switching Controllers Step-Down Controllers with Synchronous R

Datasheet

68In Stock

$26.17

$20.85

$19.64

Min.: 1
Mult.: 1
Max.: 68

Buck

1 Output

300 kHz

96 %

3 V, 5 V, 2.5 V to 6 V

10 A

0 C

+ 70 C

SMD/SMT

SOIC-16

Tube

Switching Controllers Low-Cost, Wide Input Range, Step-Down Co

MAX8545EUB+
Analog Devices / Maxim Integrated
1: $6.88
94In Stock

Mfr. Part No.
MAX8545EUB+

Mouser Part No
700-MAX8545EUB

Analog Devices / Maxim Integrated

Switching Controllers Low-Cost, Wide Input Range, Step-Down Co

Datasheet

94In Stock

$6.88

$5.25

$4.65

Min.: 1
Mult.: 1
Max.: 94

Buck

1 Output

300 kHz

95 %

800 mV to 23 V

15 A

- 40 C

+ 85 C

SMD/SMT

UMAX-10

Tube

Switching Controllers Low-Cost, Wide Input Range, Step-Down Co

MAX8546EUB+
Analog Devices / Maxim Integrated
1: $7.07
12In Stock

Mfr. Part No.
MAX8546EUB+

Mouser Part No
700-MAX8546EUB

Analog Devices / Maxim Integrated

Switching Controllers Low-Cost, Wide Input Range, Step-Down Co

Datasheet

12In Stock

$7.07

$5.39

Min.: 1
Mult.: 1
Max.: 12

Buck

1 Output

300 kHz

95 %

800 mV to 23 V

15 A

- 40 C

+ 85 C

SMD/SMT

UMAX-10

Tube

Switching Controllers Low-Cost, Wide Input Range, Step-Down Co

MAX8548EUB+
Analog Devices / Maxim Integrated
1: $6.88
192In Stock

Mfr. Part No.
MAX8548EUB+

Mouser Part No
700-MAX8548EUB

Analog Devices / Maxim Integrated

Switching Controllers Low-Cost, Wide Input Range, Step-Down Co

Datasheet

192In Stock

$6.88

$5.25

$4.65

$4.37

Min.: 1
Mult.: 1
Max.: 192

Buck

1 Output

100 kHz

95 %

800 mV to 23 V

15 A

- 40 C

+ 85 C

SMD/SMT

UMAX-10

Tube

Switching Controllers IMVP8 3+2+1 SVID CONTRO

NCP81245MNTXG
onsemi
1: $5.30
70In Stock
2,500Expected 2/9/2026

Mfr. Part No.
NCP81245MNTXG

Mouser Part No
863-NCP81245MNTXG

onsemi

Switching Controllers IMVP8 3+2+1 SVID CONTRO

Learn More

Datasheet

70In Stock

2,500Expected 2/9/2026

Cut Tape

$5.30

$3.96

$3.62

$3.51

$2.99

Reel

$2.71

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Buck

3 Output

300 kHz to 750 kHz

100 %

3.5 V

200 uA

- 40 C

+ 100 C

SMD/SMT

QFN-52

Reel, Cut Tape, MouseReel

Switching Controllers 16V Input Step-Down DCDC Controller

XC9220A093MR-G
Torex Semiconductor
1: $1.85
90In Stock

Mfr. Part No.
XC9220A093MR-G

Mouser Part No
865-XC9220A093MR-G

Torex Semiconductor

Switching Controllers 16V Input Step-Down DCDC Controller

Learn More

Datasheet

90In Stock

Cut Tape

$1.85

$1.34

$1.22

$1.08

Reel

$0.898

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Buck

1 Output

300 kHz

100 %

Adjustable

3 A

- 40 C

+ 85 C

SMD/SMT

SOT-25-5

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