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 Current Mode

UC3843D
Texas Instruments
1: $2.62
755In Stock

Mfr. Part No.
UC3843D

Mouser Part No
595-UC3843D

Texas Instruments

Switching Controllers Current Mode

Datasheet

755In Stock

$2.62

$1.94

$1.66

$1.56

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 Sync Buck, PWM Ctrl 300Khz, 8ns

MCP19035-AAABE/MF
Microchip Technology
1: $2.83
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

$2.83

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 High-Speed Step-Down Controller for Note

MAX1714BEEE+
Analog Devices / Maxim Integrated
1: $15.49
97In Stock

Mfr. Part No.
MAX1714BEEE+

Mouser Part No
700-MAX1714BEEE

Analog Devices / Maxim Integrated

Switching Controllers High-Speed Step-Down Controller for Note

Datasheet

97In Stock

$15.49

$12.12

$11.27

$10.13

View

Min.: 1
Mult.: 1

Buck

1 Output

600 kHz

100 %

1 V to 5.5 V

3 A

- 40 C

+ 85 C

SMD/SMT

QSOP-16

Tube

Switching Controllers Dual Step-Down Controllers with Saturati

MAX1541ETL+
Analog Devices / Maxim Integrated
1: $21.16
58In Stock

Mfr. Part No.
MAX1541ETL+

Mouser Part No
700-MAX1541ETL

Analog Devices / Maxim Integrated

Switching Controllers Dual Step-Down Controllers with Saturati

Datasheet

58In Stock

$21.16

$16.56

$15.41

$14.12

View

Min.: 1
Mult.: 1

Buck

2 Output

170 kHz to 620 kHz

100 %

700 mV to 5.5 V

7 A

- 40 C

+ 85 C

SMD/SMT

TQFN-40

Tube

Switching Controllers Adjustable-Output, Switch-Mode Current S

MAX1641EEE+
Analog Devices / Maxim Integrated
1: $15.50
49In Stock

Mfr. Part No.
MAX1641EEE+

Mouser Part No
700-MAX1641EEE

Analog Devices / Maxim Integrated

Switching Controllers Adjustable-Output, Switch-Mode Current S

Datasheet

49In Stock

$15.50

$12.13

$11.29

$10.32

View

Min.: 1
Mult.: 1

Buck

1 Output

500 kHz

100 %

2 V to 24 V

1 uA

- 40 C

+ 85 C

SMD/SMT

QSOP-16

Tube

Switching Controllers Interleaved High-Efficiency, Dual Power-

MAX8717ETI+
Analog Devices / Maxim Integrated
1: $21.60
36In Stock

Mfr. Part No.
MAX8717ETI+

Mouser Part No
700-MAX8717ETI

Analog Devices / Maxim Integrated

Switching Controllers Interleaved High-Efficiency, Dual Power-

Datasheet

36In Stock

$21.60

$16.92

$15.75

$14.40

View

Min.: 1
Mult.: 1

Buck

2 Output

500 kHz

99 %

3.3 V, 5 V, 1 V to 5.5 V

5 A

- 40 C

+ 85 C

SMD/SMT

TQFN-28

Tube

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

RT8130CGQW
Richtek
1: $1.16
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

$1.16

$0.811

$0.728

$0.635

Reel

$0.528

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: $4.65
125In Stock

Mfr. Part No.
MIC38HC43-1YM

Mouser Part No
998-MIC38HC43-1YM

Microchip Technology

Switching Controllers Monolithic SMPS Controller

Datasheet

125In Stock

$4.65

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 L IQ, 2x, 2-PhSync Buck Cntr

LTC3827EG-1#PBF
Analog Devices
1: $21.20
104In Stock

Mfr. Part No.
LTC3827EG-1#PBF

Mouser Part No
584-LTC3827EG-1#PBF

Analog Devices

Switching Controllers L IQ, 2x, 2-PhSync Buck Cntr

Datasheet

104In Stock

$21.20

$16.70

$15.26

$14.18

View

Min.: 1
Mult.: 1

Buck

2 Output

400 kHz

99 %

800 mV to 10 V

25 A

- 40 C

+ 85 C

SMD/SMT

SSOP-28

Tube

Switching Controllers L IQ, 60V Sync Boost+Buck Cntr

LTC7813HUH#PBF
Analog Devices
1: $24.47
6In Stock

Mfr. Part No.
LTC7813HUH#PBF

Mouser Part No
584-LTC7813HUH#PBF

Analog Devices

Switching Controllers L IQ, 60V Sync Boost+Buck Cntr

Learn More

Datasheet

6In Stock

$24.47

$19.04

$16.71

$15.91

View

Min.: 1
Mult.: 1

Boost, Buck

2 Output

850 kHz

100 %

800 mV to 60 V

20 A

- 40 C

+ 150 C

SMD/SMT

QFN-32

Tube

Switching Controllers L IQ, 2.25MHz, 3x Out, Buck/Buck/Boost S

LTC7815HUHF#PBF
Analog Devices
1: $20.25
30In Stock

Mfr. Part No.
LTC7815HUHF#PBF

Mouser Part No
584-LTC7815HUHF#PBF

Analog Devices

Switching Controllers L IQ, 2.25MHz, 3x Out, Buck/Buck/Boost S

Learn More

Datasheet

30In Stock

$20.25

$15.86

$14.76

$13.31

View

Min.: 1
Mult.: 1

Boost, Buck

3 Output

320 kHz to 2.25 MHz

100 %

800 mV to 60 V

25 A

- 40 C

+ 150 C

SMD/SMT

QFN-38

Tube

Switching Controllers L IQ, 2x, 2-PhSync Buck Cntr

LTC3827IG-1#PBF
Analog Devices
1: $25.05
23In Stock

Mfr. Part No.
LTC3827IG-1#PBF

Mouser Part No
584-LTC3827IG-1#PBF

Analog Devices

Switching Controllers L IQ, 2x, 2-PhSync Buck Cntr

Datasheet

23In Stock

$25.05

$19.86

$17.61

$16.92

View

Min.: 1
Mult.: 1

Buck

2 Output

400 kHz

99 %

800 mV to 10 V

25 A

- 40 C

+ 85 C

SMD/SMT

SSOP-28

Tube

Switching Controllers Small, Dual, High-Efficiency Buck Contro

MAX1761EEE+
Analog Devices / Maxim Integrated
1: $16.22
51In Stock

Mfr. Part No.
MAX1761EEE+

Mouser Part No
700-MAX1761EEE

Analog Devices / Maxim Integrated

Switching Controllers Small, Dual, High-Efficiency Buck Contro

Datasheet

51In Stock

$16.22

$12.72

$11.83

$10.43

View

Min.: 1
Mult.: 1

Buck

2 Output

350 kHz

100 %

1.8 V, 2.5 V, 1 V to 5.5 V

600 mA

- 40 C

+ 85 C

SMD/SMT

QSOP-16

Tube

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

RT6575AGQW
Richtek
1: $1.84
717In 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

717In Stock

Cut Tape

$1.84

$1.33

$1.20

$1.06

Reel

$0.911

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: $3.54
165In Stock

Mfr. Part No.
MIC38C43AYMM

Mouser Part No
998-MIC38C43AYMM

Microchip Technology

Switching Controllers Monolithic SMPS Controller

Datasheet

165In Stock

$3.54

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: $3.22
69In Stock

Mfr. Part No.
MIC38HC43YN

Mouser Part No
998-MIC38HC43YN

Microchip Technology

Switching Controllers Monolithic SMPS Controller

Datasheet

69In Stock

$3.22

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 L IQ, 60V Sync Boost+Buck Cntr

LTC7813EUH#PBF
Analog Devices
1: $20.75
70In Stock

Mfr. Part No.
LTC7813EUH#PBF

Mouser Part No
584-LTC7813EUH#PBF

Analog Devices

Switching Controllers L IQ, 60V Sync Boost+Buck Cntr

Learn More

Datasheet

70In Stock

$20.75

$16.31

$15.12

$13.36

View

Min.: 1
Mult.: 1

Boost, Buck

2 Output

850 kHz

100 %

800 mV to 60 V

20 A

- 40 C

+ 125 C

SMD/SMT

QFN-32

Tube

Switching Controllers Multi-Output, Low-Noise Power-Supply Con

MAX1631AEAI+
Analog Devices / Maxim Integrated
1: $29.10
25In Stock

Mfr. Part No.
MAX1631AEAI+

Mouser Part No
700-MAX1631AEAI

Analog Devices / Maxim Integrated

Switching Controllers Multi-Output, Low-Noise Power-Supply Con

Datasheet

25In Stock

$29.10

$23.20

$21.56

$19.43

View

Min.: 1
Mult.: 1

Buck

2 Output

300 kHz

99 %

3.3 V, 5 V, 2.5 V to 5.5 V

1 A

- 40 C

+ 85 C

SMD/SMT

SSOP-28

Tube

Switching Controllers Single Phase PWM Controller with Light Load Efficiency Optimization

RT8123AGQW
Richtek
1: $1.13
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

$1.13

$0.789

$0.707

$0.617

Reel

$0.514

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 High Speed PWM Contr oller

UC2823N
Texas Instruments
1: $11.49
214In Stock

Mfr. Part No.
UC2823N

Mouser Part No
595-UC2823N

Texas Instruments

Switching Controllers High Speed PWM Contr oller

Datasheet

214In Stock

$11.49

$8.91

$8.24

$6.96

View

Min.: 1
Mult.: 1

Boost, Buck, Flyback, Forward

1 Output

1 MHz

100 %

5.1 V

2 A

- 25 C

+ 85 C

Through Hole

PDIP-16

Tube

Switching Controllers Versatile Automotive 36V 2.2MHz Buck Controller with 3.5 A IQ

MAX20098ATEC/VY+
Analog Devices / Maxim Integrated
1: $5.21
489In Stock

Mfr. Part No.
MAX20098ATEC/VY+

Mouser Part No
700-MAX20098ATEC/VY+

Analog Devices / Maxim Integrated

Switching Controllers Versatile Automotive 36V 2.2MHz Buck Controller with 3.5 A IQ

Learn More

Datasheet

489In Stock

$5.21

$4.15

$3.78

$3.44

View

Min.: 1
Mult.: 1

Buck

1 Output

220 kHz to 2.2 MHz

99 %

5 V, 1 V to 10 V

15 A

- 40 C

+ 125 C

SMD/SMT

SWTQFN-EP-16

AEC-Q100

Tray

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

LM25119QPSQ/NOPB
Texas Instruments
1: $12.51
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

$12.51

$9.72

$9.03

$8.26

Reel

$7.28

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: $5.86
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

$5.86

$5.62

$5.36

$4.86

View

Reel

$4.35

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: $4.46
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

$4.46

$3.32

$3.05

$2.73

Reel

$2.30

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

MAX1653EEE+
Analog Devices / Maxim Integrated
1: $17.54
153In Stock

Mfr. Part No.
MAX1653EEE+

Mouser Part No
700-MAX1653EEE

Analog Devices / Maxim Integrated

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

Datasheet

153In Stock

$17.54

$13.79

$12.70

$11.23

View

Min.: 1
Mult.: 1

Buck

1 Output

300 kHz

99 %

2.5 V to 5.5 V

10 A

- 40 C

+ 85 C

SMD/SMT

QSOP-16

Tube

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