Buck Converters

A Buck Converter, also known as a Step-Down Converter, is a DC-to-DC power converter that steps down the voltage from its input to its output. A buck converter integrates the core components and circuitry needed into a single device.

Buck converters are found in countless electronic applications, where their power regulation properties are a vital component.

How does a Buck Convert...

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Microchip, MIC2129T-E/2FW Step-Down COT Controller, 1-Channel Current, Voltage 24-Pin, VQFN
Microchip, MIC2129T-E/2FW Step-Down COT Controller, 1-Channel Current, Voltage 24-Pin, VQFN
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RS Stock No.: 332-634Brand: MicrochipManufacturers Part No.: MIC2129T-E/2FWHSN Code: 85423990

SR 89,096.25

SR 35.638 Each (On a Reel of 2500) (ex VAT)

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2500

Available in multiples of 2500
2500SR 35.638
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Microchip
-
-
100 V
Step Down
4.5 V
-
-
Current, Voltage
-
1
-
24
VQFN
-
-
-
-
-
-
-
-
-
Microchip, MIC2129T-E/U3B Step-Down COT Controller, 1-Channel Current, Voltage 24-Pin, VQFN
Microchip, MIC2129T-E/U3B Step-Down COT Controller, 1-Channel Current, Voltage 24-Pin, VQFN
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RS Stock No.: 332-636Brand: MicrochipManufacturers Part No.: MIC2129T-E/U3BHSN Code: 85423190

SR 33,281.00

SR 33.281 Each (On a Reel of 1000) (ex VAT)

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1000

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1000SR 33.281
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Microchip
-
-
100 V
Step Down
4.5 V
-
-
Current, Voltage
-
1
-
24
VQFN
-
-
-
-
-
-
-
-
-
ROHM, BD9G201UEFJ-LBE2 Step-Down Switching Regulator, 1-Channel 1.5A 8-Pin, HTSOP-J8ES
ROHM, BD9G201UEFJ-LBE2 Step-Down Switching Regulator, 1-Channel 1.5A 8-Pin, HTSOP-J8ES
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RS Stock No.: 267-2276Brand: ROHMManufacturers Part No.: BD9G201UEFJ-LBE2HSN Code: 85423990

SR 25,242.50

SR 10.097 Each (On a Reel of 2500) (ex VAT)

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2500

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2500SR 10.097
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ROHM
1.5A
-
42 V
Buck Controller
0.8 V
4.5 V
-
-
-
1
-
8
HTSOP-J8ES
-
-
-
-
-
-
-
-
-
ROHM, BD9G201UEFJ-LBE2 Step-Down Switching Regulator, 1-Channel 1.5A 8-Pin, HTSOP-J8ES
ROHM, BD9G201UEFJ-LBE2 Step-Down Switching Regulator, 1-Channel 1.5A 8-Pin, HTSOP-J8ES
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Also available in industry standard packaging
RS Stock No.: 267-2277Brand: ROHMManufacturers Part No.: BD9G201UEFJ-LBE2HSN Code: 85423990

SR 78.37

SR 15.674 Each (In a Pack of 5) (ex VAT)

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5

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5SR 15.674
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ROHM
1.5A
-
42 V
Buck Controller
0.8 V
4.5 V
-
-
-
1
-
8
HTSOP-J8ES
-
-
-
-
-
-
-
-
-
ROHM, BD9G401UEFJ-ME2 Step-Down Switching Regulator, 1-Channel 3.5A 8-Pin, HTSOP-J8ES
ROHM, BD9G401UEFJ-ME2 Step-Down Switching Regulator, 1-Channel 3.5A 8-Pin, HTSOP-J8ES
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RS Stock No.: 267-2279Brand: ROHMManufacturers Part No.: BD9G401UEFJ-ME2HSN Code: 85423990

SR 21,965.00

SR 8.786 Each (On a Reel of 2500) (ex VAT)

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2500

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2500SR 8.786
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ROHM
3.5A
-
42 V
Buck Controller
0.8 V
4.5 V
-
-
-
1
-
8
HTSOP-J8ES
-
-
-
-
-
-
-
-
-
ROHM, BD9G401UEFJ-ME2 Step-Down Switching Regulator, 1-Channel 3.5A 8-Pin, HTSOP-J8ES
ROHM, BD9G401UEFJ-ME2 Step-Down Switching Regulator, 1-Channel 3.5A 8-Pin, HTSOP-J8ES
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Also available in industry standard packaging
RS Stock No.: 267-2280Brand: ROHMManufacturers Part No.: BD9G401UEFJ-ME2HSN Code: 85423990

SR 42.37

SR 21.183 Each (In a Pack of 2) (ex VAT)

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2

Available in multiples of 2
2SR 21.183
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ROHM
3.5A
-
42 V
Buck Controller
0.8 V
4.5 V
-
-
-
1
-
8
HTSOP-J8ES
-
-
-
-
-
-
-
-
-
ROHM, BD9S402MUF-CE2 Step-Down Switching Regulator 4A
ROHM, BD9S402MUF-CE2 Step-Down Switching Regulator 4A
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RS Stock No.: 252-3113Brand: ROHMManufacturers Part No.: BD9S402MUF-CE2HSN Code: 85423990

SR 25,564.50

SR 8.522 Each (On a Reel of 3000) (ex VAT)

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3000

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3000SR 8.522
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ROHM
4A
-
0.75 V
Buck Converter
0.6 V
2.7 V
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
ROHM, BD9S402MUF-CE2 Step-Down Switching Regulator 4A
ROHM, BD9S402MUF-CE2 Step-Down Switching Regulator 4A
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Also available in industry standard packaging
RS Stock No.: 252-3114Brand: ROHMManufacturers Part No.: BD9S402MUF-CE2HSN Code: 85423990

SR 94.76

SR 18.952 Each (In a Pack of 5) (ex VAT)

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5

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5SR 18.952
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ROHM
4A
-
0.75 V
Buck Converter
0.6 V
2.7 V
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Renesas Electronics, ISL85415FRZ Synchronous Buck Regulator, 1-Channel 500mA Adjustable 12-Pin, DFN-EP-12
Renesas Electronics, ISL85415FRZ Synchronous Buck Regulator, 1-Channel 500mA Adjustable 12-Pin, DFN-EP-12
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Also available in industry standard packaging
RS Stock No.: 263-8980Brand: Renesas ElectronicsManufacturers Part No.: ISL85415FRZHSN Code: 85423990

SR 67.04

SR 13.409 Each (In a Pack of 5) (ex VAT)

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5

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5SR 13.409
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Renesas Electronics
500mA
-
36 V
-
600 mV
3 V
-
Adjustable
-
1
-
12
DFN-EP-12
-
-
-
-
-
-
-
-
-
Renesas Electronics, ISL85415FRZ Synchronous Buck Regulator, 1-Channel 500mA Adjustable 12-Pin, DFN-EP-12
Renesas Electronics, ISL85415FRZ Synchronous Buck Regulator, 1-Channel 500mA Adjustable 12-Pin, DFN-EP-12
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RS Stock No.: 263-8979Brand: Renesas ElectronicsManufacturers Part No.: ISL85415FRZHSN Code: 85423990

SR 5,606.25

SR 7.475 Each (In a Tube of 750) (ex VAT)

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750

Available in multiples of 750
750SR 7.475
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Renesas Electronics
500mA
-
36 V
-
600 mV
3 V
-
Adjustable
-
1
-
12
DFN-EP-12
-
-
-
-
-
-
-
-
-
STMicroelectronics, DCP3601CDMR Step Down DC-DC Converter, 1-Channel 1A 6-Pin, SOT23-6L
STMicroelectronics, DCP3601CDMR Step Down DC-DC Converter, 1-Channel 1A 6-Pin, SOT23-6L
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Also available in industry standard packaging
RS Stock No.: 309-407Brand: STMicroelectronicsManufacturers Part No.: DCP3601CDMRHSN Code: 85423990

SR 51.18

SR 5.118 Each (In a Pack of 10) (ex VAT)

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10

Available in multiples of 10
10SR 5.118
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STMicroelectronics
1A
-
-
Buck Converter
-
3.3 V
-
-
-
1
-
6
SOT23-6L
-
-
-
-
-
-
-
-
-
STMicroelectronics, DCP3601CMR Step Down DC-DC Converter, 1-Channel 1A 6-Pin, SOT23-6L
STMicroelectronics, DCP3601CMR Step Down DC-DC Converter, 1-Channel 1A 6-Pin, SOT23-6L
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Also available in industry standard packaging
RS Stock No.: 309-406Brand: STMicroelectronicsManufacturers Part No.: DCP3601CMRHSN Code: 85423990

SR 48.64

SR 4.864 Each (In a Pack of 10) (ex VAT)

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10

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10SR 4.864
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STMicroelectronics
1A
-
-
Buck Converter
-
3.3 V
-
-
-
1
-
6
SOT23-6L
-
-
-
-
-
-
-
-
-
STMicroelectronics, DCP3601NDMR Step Down DC-DC Converter, 1-Channel 1A 6-Pin, SOT23-6L
STMicroelectronics, DCP3601NDMR Step Down DC-DC Converter, 1-Channel 1A 6-Pin, SOT23-6L
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Also available in industry standard packaging
RS Stock No.: 309-410Brand: STMicroelectronicsManufacturers Part No.: DCP3601NDMRHSN Code: 85423990

SR 51.18

SR 5.118 Each (In a Pack of 10) (ex VAT)

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10

Available in multiples of 10
10SR 5.118
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STMicroelectronics
1A
-
-
Buck Converter
-
3.3 V
-
-
-
1
-
6
SOT23-6L
-
-
-
-
-
-
-
-
-
STMicroelectronics, DCP3601NMR Step Down DC-DC Converter, 1-Channel 1A 6-Pin, SOT23-6L
STMicroelectronics, DCP3601NMR Step Down DC-DC Converter, 1-Channel 1A 6-Pin, SOT23-6L
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Also available in industry standard packaging
RS Stock No.: 309-409Brand: STMicroelectronicsManufacturers Part No.: DCP3601NMRHSN Code: 85423990

SR 48.64

SR 4.864 Each (In a Pack of 10) (ex VAT)

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10

Available in multiples of 10
10SR 4.864
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STMicroelectronics
1A
-
-
Buck Converter
-
3.3 V
-
-
-
1
-
6
SOT23-6L
-
-
-
-
-
-
-
-
-
Texas Instruments, LM5164QDDATQ1 Sync Buck Converter, 1-Channel 1A Adjustable 8-Pin, SO PowerPAD
Texas Instruments, LM5164QDDATQ1 Sync Buck Converter, 1-Channel 1A Adjustable 8-Pin, SO PowerPAD
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RS Stock No.: 268-7540Brand: Texas InstrumentsManufacturers Part No.: LM5164QDDATQ1HSN Code: 85423990

SR 5,382.00

SR 21.528 Each (On a Reel of 250) (ex VAT)

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250

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250SR 21.528
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Texas Instruments
1A
-
100 V
Current Limit, Short Circuit Protection, Thermal Shutdown Protection
1.2 V
6 V
-
Adjustable
-
1
-
8
SO PowerPAD
-
-
-
-
-
-
-
-
-
Texas Instruments, LM5164QDDATQ1 Sync Buck Converter, 1-Channel 1A Adjustable 8-Pin, SO PowerPAD
Texas Instruments, LM5164QDDATQ1 Sync Buck Converter, 1-Channel 1A Adjustable 8-Pin, SO PowerPAD
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Also available in industry standard packaging
RS Stock No.: 268-7541Brand: Texas InstrumentsManufacturers Part No.: LM5164QDDATQ1HSN Code: 85423990

SR 63.53

SR 31.763 Each (In a Pack of 2) (ex VAT)

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2

Available in multiples of 2
2SR 31.763
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Texas Instruments
1A
-
100 V
Current Limit, Short Circuit Protection, Thermal Shutdown Protection
1.2 V
6 V
-
Adjustable
-
1
-
8
SO PowerPAD
-
-
-
-
-
-
-
-
-
DiodesZetex, AL8860WT-7 Step-Down Switching Regulator 1A Adjustable 25-Pin, TSOT
DiodesZetex, AL8860WT-7 Step-Down Switching Regulator 1A Adjustable 25-Pin, TSOT
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Also available in industry standard packaging
RS Stock No.: 133-3338Brand: DiodesZetexManufacturers Part No.: AL8860WT-7HSN Code: 85423990

SR 67.16

SR 3.358 Each (In a Pack of 20) (ex VAT)

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20

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20SR 3.358
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DiodesZetex
1A
-
-
Buck Converter
-
4.5 V
40 V
Adjustable
Surface Mount
-
1 MHz
25
TSOT
-
-
0.9mm
+105 °C
2.9 x 1.6 x 0.9mm
1.6mm
2.9mm
-
-40 °C
DiodesZetex, AP1509-33SG-13 DC-DC Converter, 1-Channel 2A 8-Pin, SOP
DiodesZetex, AP1509-33SG-13 DC-DC Converter, 1-Channel 2A 8-Pin, SOP
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Also available in industry standard packaging
RS Stock No.: 751-2929Brand: DiodesZetexManufacturers Part No.: AP1509-33SG-13HSN Code: 85423990

SR 49.74

SR 9.948 Each (In a Pack of 5) (ex VAT)

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5

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5SR 9.948
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DiodesZetex
2A
-
3.3 V
Buck Controller
-
4.5 V
22 V
Fixed
Surface Mount
1
150 kHz
8
SOP
-
-
1.5mm
+125 °C
4.95 X 3.95 X 1.5mm
3.95mm
4.95mm
76%
-40 °C
STMicroelectronics, ST1S03PUR Step-Down Switching Regulator Adjustable 6-Pin, DFN
STMicroelectronics, ST1S03PUR Step-Down Switching Regulator Adjustable 6-Pin, DFN
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Also available in industry standard packaging
RS Stock No.: 877-2848Brand: STMicroelectronicsManufacturers Part No.: ST1S03PURHSN Code: 85423990

SR 51.18

SR 5.118 Each (In a Pack of 10) (ex VAT)

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10

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10SR 5.118
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STMicroelectronics
-
-
-
-
-
3 V
16 V
Adjustable
Surface Mount
-
1.8 MHz
6
DFN
0.06 %
0.003 %
0.95mm
+150 °C
3.1 x 3.1 x 0.95mm
3.1mm
3.1mm
-
-
DiodesZetex, AP8802HSP-13 DC-DC Converter Dual-Channel 1A Adjustable 8-Pin, SOIC
DiodesZetex, AP8802HSP-13 DC-DC Converter Dual-Channel 1A Adjustable 8-Pin, SOIC
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Also available in industry standard packaging
RS Stock No.: 751-3118Brand: DiodesZetexManufacturers Part No.: AP8802HSP-13HSN Code: 85423990

SR 86.71

SR 17.342 Each (In a Pack of 5) (ex VAT)

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5

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5SR 17.342
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DiodesZetex
1A
-
50 V
Buck Controller
-0.3 V
8 V
48 V
Adjustable
Surface Mount
2
600 kHz
8
SOIC
-
-
1.45mm
+105 °C
4.95 x 3.95 x 1.45mm
3.95mm
4.95mm
92%
-40 °C

...