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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Description Datasheet Availability Pricing (DKK) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Topology
Number of Outputs
Switching Frequency
Duty Cycle - Max
Input Voltage
Output Voltage
Output Current
Minimum Operating Temperature
Maximum Operating Temperature
Mounting Style
Package/Case
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Packaging
Analog Devices / Maxim Integrated Switching Controllers High-Speed Step-Down Controller with Syn
Datasheet
7In Stock
123,31 kr.
97,88 kr.
89,37 kr.
84,22 kr.
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Min.: 1
Mult.: 1
Buck 1 Output 1 MHz 90 % 1.3 V to 5.5 V 35 A - 40 C + 85 C SMD/SMT SSOP-24 Tube

Analog Devices / Maxim Integrated Switching Controllers Adjustable-Output, Switch-Mode Current S
Datasheet
149In Stock
80,27 kr.
62,89 kr.
59,83 kr.
50,80 kr.
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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
Analog Devices / Maxim Integrated Switching Controllers High-Efficiency, PWM, Step-Down DC-DC Co
Datasheet
74In Stock
97,05 kr.
76,47 kr.
68,33 kr.
60,72 kr.
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 SOIC-Narrow-16 Tube

Analog Devices / Maxim Integrated Switching Controllers High-Efficiency, PWM, Step-Down DC-DC Co
Datasheet
13In Stock
53,34 kr.
52,15 kr.
52,00 kr.
Min.: 1
Mult.: 1
Buck 2 Output 300 kHz 99 % 2.5 V to 5.5 V 10 A - 40 C + 85 C SMD/SMT QSOP-16 Tube
Analog Devices / Maxim Integrated Switching Controllers High-Voltage, Step-Down DC-DC Controller in MAX
Datasheet
62In Stock
64,60 kr.
50,28 kr.
42,75 kr.
42,67 kr.
View
Min.: 1
Mult.: 1
Buck 1 Output 330 kHz 100 % 3.3 V, 5 V 10 A - 40 C + 85 C SMD/SMT UMAX-10 Tube
Analog Devices / Maxim Integrated Switching Controllers High-Voltage, Step-Down DC-DC Controller in MAX
Datasheet
4In Stock
Cut Tape
64,60 kr.
50,21 kr.
46,63 kr.
42,75 kr.
41,03 kr.
35,58 kr.
MouseReel Available
Min.: 1
Mult.: 1
Buck 1 Output 330 kHz 100 % 3.3 V, 5 V 10 A - 40 C + 85 C SMD/SMT UMAX-10 Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Switching Controllers High-Voltage, Step-Down DC-DC Controller in MAX
Datasheet
21In Stock
74,45 kr.
58,56 kr.
49,76 kr.
49,53 kr.
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Min.: 1
Mult.: 1
Buck 1 Output 330 kHz 100 % 1.25 V to 18 V 10 A - 40 C + 85 C SMD/SMT UMAX-10 Tube
Analog Devices / Maxim Integrated Switching Controllers High-Voltage, Step-Down DC-DC Controller in MAX
Datasheet
35In Stock
74,67 kr.
58,71 kr.
49,83 kr.
49,68 kr.
View
Min.: 1
Mult.: 1
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
Analog Devices / Maxim Integrated Switching Controllers High-Efficiency, 10-Pin MAX, Step-Down Controllers for Notebooks
Datasheet
14In Stock
74,53 kr.
58,26 kr.
52,97 kr.
49,68 kr.
View
Min.: 1
Mult.: 1
Buck 1 Output 300 kHz 100 % 500 mV to 5.5 V 2 A - 40 C + 85 C SMD/SMT UMAX-10 Tube
Analog Devices / Maxim Integrated Switching Controllers Low-Cost, High-Frequency, Current-Mode P
Datasheet
65In Stock
Cut Tape
56,40 kr.
43,72 kr.
40,51 kr.
37,00 kr.
35,73 kr.
30,66 kr.
MouseReel Available
Min.: 1
Mult.: 1
Boost, Buck 1 Output 1 MHz 89 % 800 mV to 4.73 V 4 A - 40 C + 85 C SMD/SMT USOP-10 Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Switching Controllers 2.35V to 5.5V, 0.5 Accurate, 1MHz PWM S
Datasheet
41In Stock
67,96 kr.
53,26 kr.
45,21 kr.
45,13 kr.
View
Min.: 1
Mult.: 1
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
Analog Devices / Maxim Integrated Switching Controllers Low-Cost, Wide Input Range, Step-Down Co
Datasheet
12In Stock
35,36 kr.
26,93 kr.
24,77 kr.
22,45 kr.
View
Min.: 1
Mult.: 1
Buck 1 Output 300 kHz 95 % 800 mV to 23 V 15 A - 40 C + 85 C SMD/SMT UMAX-10 Tube
Texas Instruments Switching Controllers 4.5V-18V Input Synch Buck Cntrlr ALT 595 ALT 595-TPS40193DRCR
Datasheet
305In Stock
Cut Tape
22,23 kr.
16,56 kr.
15,07 kr.
13,50 kr.
Reel
11,56 kr.
View
MouseReel Available
Min.: 1
Mult.: 1
: 3.000
Buck 1 Output 300 kHz 85 % 4.5 V to 18 V 20 A - 40 C + 85 C SMD/SMT VSON-10 Reel, Cut Tape, MouseReel
Texas Instruments Switching Controllers 4.5V to 20V Buck A 5 95-TPS40195PWR A 59 A 595-TPS40195PWR
Datasheet
102In Stock
29,02 kr.
21,86 kr.
20,07 kr.
18,13 kr.
View
Min.: 1
Mult.: 1
Buck 1 Output 600 kHz 85 % 591 mV 20 A - 40 C + 85 C SMD/SMT TSSOP-16 Tube
Texas Instruments Switching Controllers Dual DDR selectable Sync buck Controller A 595-TPS51020DBTR
Datasheet
19In Stock
48,27 kr.
34,61 kr.
31,33 kr.
31,26 kr.
View
Min.: 1
Mult.: 1
Buck 2 Output 450 kHz 88 % 900 mV 15 A - 40 C + 85 C SMD/SMT TSSOP-30 Tube
Texas Instruments Switching Controllers Dual Ch Sync Step-Do wn A 595-TPS5124DBT A 595-TPS5124DBT
Datasheet
24In Stock
Cut Tape
43,49 kr.
33,35 kr.
30,81 kr.
28,05 kr.
View
Reel
25,81 kr.
MouseReel Available
Min.: 1
Mult.: 1
: 2.000
Buck 2 Output 500 kHz 80 % 900 mV to 12 V 20 A - 40 C + 85 C SMD/SMT TSSOP-30 Reel, Cut Tape, MouseReel
Texas Instruments Switching Controllers Dual Synch Step- Dow n Controller A 595- A 595-TPS53125PW
Datasheet
45In Stock
55,35 kr.
42,97 kr.
37,60 kr.
36,93 kr.
View
Min.: 1
Mult.: 1
Buck 2 Output 350 kHz 89 % 760 mV to 5.5 V 15 A - 40 C + 85 C SMD/SMT TSSOP-24 Tube
Texas Instruments Switching Controllers High Speed PWM Contr oller ALT 595-UC382 ALT 595-UC3823DW
Datasheet
113In Stock
50,73 kr.
39,17 kr.
36,26 kr.
33,05 kr.
View
Min.: 1
Mult.: 1
Boost, Buck, Flyback, Forward 1 Output 1 MHz 100 % 5.1 V 2 A 0 C + 70 C SMD/SMT SOIC-16 Tube
Texas Instruments Switching Controllers High Speed PWM Contr oller ALT 595-UC382 ALT 595-UC3823N
Datasheet
89In Stock
54,16 kr.
41,93 kr.
38,87 kr.
35,51 kr.
View
Min.: 1
Mult.: 1
Boost, Buck, Flyback, Forward 1 Output 1 MHz 100 % 5.1 V 2 A 0 C + 70 C Through Hole PDIP-16 Tube
Texas Instruments Switching Controllers Adv Voltage Mode
Datasheet
77In Stock
84,15 kr.
66,24 kr.
57,07 kr.
55,20 kr.
View
Min.: 1
Mult.: 1
Boost, Buck, Flyback, Forward 1 Output 700 kHz 99 % 13 V 1 A 0 C + 70 C SMD/SMT TSSOP-14 Tube
Texas Instruments Switching Controllers Adv Voltage Mode
Datasheet
17In Stock
74,38 kr.
58,26 kr.
50,36 kr.
47,45 kr.
View
Min.: 1
Mult.: 1
Boost, Buck 1 Output 700 kHz 99 % 9.6 V 1 A 0 C + 70 C SMD/SMT TSSOP-14 Tube
Texas Instruments Switching Controllers Low-Power BiCMOS Cur rent-Mode PWM
Datasheet
288In Stock
27,68 kr.
20,89 kr.
19,17 kr.
17,31 kr.
View
Min.: 1
Mult.: 1
Boost, Buck, Flyback, Forward 1 Output 1 MHz 100 % 5 V 1 A 0 C + 70 C SMD/SMT TSSOP-8 Tube

Texas Instruments Switching Controllers Low-Vtg Sync Buck Cn tlr
Datasheet
928In Stock
Cut Tape
16,26 kr.
12,09 kr.
10,97 kr.
9,85 kr.
9,70 kr.
Reel
8,13 kr.
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 VSSOP-8 Reel, Cut Tape, MouseReel
Texas Instruments Switching Controllers 1-V to 14-V voltage mode synchronous bu A 926-LM2747MTCX/NOPB
Datasheet
205In Stock
23,95 kr.
17,83 kr.
16,26 kr.
14,55 kr.
View
Min.: 1
Mult.: 1
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 Tube

Texas Instruments Switching Controllers 42V Synchronous Step -Down Controller wi A 926-LM3151MHE33NOPB
Datasheet
38In Stock
33,57 kr.
25,44 kr.
21,78 kr.
20,74 kr.
View
Min.: 1
Mult.: 1
Buck 1 Output 250 kHz 90 % 3.3 V 12 A - 40 C + 125 C SMD/SMT HTSSOP-14 Tube