Synchronous Buck (Step Down) DC / DC Switching Regulators:

1,980 Products Found

Newark offers an exclusive range of DC-DC switching regulators with improved integration and advanced packaging options. DC-DC switching regulators are essential power management components. 

Unlike linear regulators, switching regulators can step voltage up or down while minimizing power loss as heat. Common topologies include buck (step-down), boost (step-up), and buck-boost converters, each optimized for specific voltage conversion requirements. Modern switching regulators integrate features like synchronous rectification, adaptive frequency control, and protection circuits for overcurrent thermal and undervoltage conditions.

Key applications include smartphones, computers, industrial equipment, and automotive systems, where power efficiency and thermal management are critical. When selecting a switching regulator, engineers consider factors such as input voltage range, output current capability, number of outputs, switching frequency, EMI performance, and solution size.

DC-DC switching regulators offer high efficiency, typically 85-95%, making them ideal for battery-powered devices and energy-sensitive applications. Switching regulators, as their name suggests, control the turning on and off of a switch (transistor) to transfer energy from its input to its output.

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ComparePrice forQuantity
38Y7968

RoHS

Each (Supplied on Cut Tape)
1+
$2.740
10+
$2.030
25+
$1.850
50+
$1.760
100+
$1.640
More Pricing...
Min: 1 / Mult: 1
Min: 100 / Mult: 1
Adjustable
-
-
Adjustable
-
1Outputs
-
Synchronous Buck (Step Down)
-
-
2.5V
-
18V
3A
3A
-
PowerSO
-
-
8Pins
Surface Mount
-
-
-
800mV
-
-
900kHz
90%
-40°C
125°C
-
-
47AC9697

RoHS

Each (Supplied on Cut Tape)
1+
$5.240
10+
$3.970
25+
$3.650
50+
$3.470
100+
$3.280
More Pricing...
Min: 1 / Mult: 1
Min: 100 / Mult: 1
Adjustable
-
-
Adjustable
-
1Outputs
-
Synchronous Buck (Step Down)
-
-
4.5V
-
60V
4A
4A
-
PowerPAK MLP55
-
-
27Pins
Surface Mount
-
-
-
800mV
55.2V
-
2MHz
98%
-40°C
105°C
-
-
78AC6495

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
1+
$6.820
10+
$5.190
25+
$4.790
Min: 1 / Mult: 1
Min: 100 / Mult: 1
-
-
-
Adjustable
-
1Outputs
-
Synchronous Buck (Step Down)
-
-
4.5V
-
55V
12A
12A
-
PowerPAK MLP55
-
-
27Pins
Surface Mount
-
-
-
800mV
50.6V
-
2MHz
98%
-40°C
105°C
-
-
14AC8297

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$1.210
25+
$1.210
50+
$1.210
100+
$1.210
250+
$1.210
More Pricing...
Min: 1 / Mult: 1
-
-
-
Fixed
-
1Outputs
-
Synchronous Buck (Step Down)
-
-
4.5V
-
40V
2A
2A
-
QFN-EP
-
-
16Pins
Surface Mount
-
5V
5V
-
-
-
1MHz
95%
-40°C
125°C
-
-
54AH3162

RoHS

MONOLITHIC POWER SYSTEMS (MPS)
Each (Supplied on Cut Tape)
1+
$7.110
Min: 5 / Mult: 5
Min: 10 / Mult: 5
Adjustable
-
-
Adjustable
-
1Outputs
-
Synchronous Buck (Step Down)
-
-
4.5V
-
36V
1.2A
1.2A
-
QFN
-
-
19Pins
Surface Mount
-
-
-
810mV
33.12V
-
1.15MHz
-
-40°C
125°C
-
-
54AH3183

RoHS

MONOLITHIC POWER SYSTEMS (MPS)
Each (Supplied on Cut Tape)
Cut Tape
1+
$5.790
Min: 1 / Mult: 1
Fixed
-
-
Fixed
-
1Outputs
-
Synchronous Buck (Step Down)
-
-
2.5V
-
6V
1.2A
1.2A
-
QFN
-
-
12Pins
Surface Mount
-
1.2V
1.2V
-
-
-
3.5MHz
-
-40°C
125°C
-
-
28AH2897

RoHS

Date/Lot Code

Each
1+
$8.590
10+
$8.080
25+
$7.650
50+
$7.300
150+
$7.000
More Pricing...
Min: 1 / Mult: 1
-
-
-
Adjustable
-
1Outputs
-
Synchronous Buck (Step Down)
-
-
4.5V
-
36V
3A
3A
-
HSOIC
-
-
8Pins
Surface Mount
-
-
-
1V
28V
-
400kHz
-
-40°C
125°C
SIMPLE SWITCHER LMR23630
-
54AH3508

RoHS

MONOLITHIC POWER SYSTEMS (MPS)
Each (Supplied on Cut Tape)
Cut Tape
1+
$4.660
10+
$3.690
25+
$3.440
50+
$3.310
100+
$3.170
More Pricing...
Min: 1 / Mult: 1
Adjustable
-
-
Adjustable
-
1Outputs
-
Synchronous Buck (Step Down)
-
-
4.5V
-
24V
8A
8A
-
QFN
-
-
12Pins
Surface Mount
-
-
-
600mV
5.5V
-
700kHz
-
-40°C
125°C
-
-
81AH8746

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$1.210
10+
$0.919
25+
$0.848
50+
$0.808
100+
$0.769
More Pricing...
Min: 1 / Mult: 1
-
-
-
Adjustable
-
1Outputs
-
Synchronous Buck (Step Down)
-
-
3.8V
-
32V
2A
2A
-
TSOT-26
-
-
6Pins
Surface Mount
-
-
-
800mV
32V
-
500kHz
-
-40°C
85°C
-
-
94AC8150

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
1+
$3.100
25+
$1.960
Min: 1 / Mult: 1
Min: 10 / Mult: 1
-
-
-
Adjustable
-
1Outputs
-
Synchronous Buck (Step Down)
-
-
4.5V
-
40V
2A
2A
-
QFN
-
-
16Pins
Surface Mount
-
-
-
900mV
39V
-
1MHz
95%
-40°C
125°C
FemtoBuck™
-
28AH5890

RoHS

Date/Lot Code

Each
1+
$4.670
10+
$4.330
25+
$4.040
50+
$3.850
100+
$3.630
More Pricing...
Min: 1 / Mult: 1
-
-
-
Adjustable
-
1Outputs
-
Synchronous Buck (Step Down)
-
-
4.2V
-
28V
3A
3A
-
HSOP
-
-
8Pins
Surface Mount
-
-
-
800mV
24V
-
570kHz
-
-40°C
85°C
-
-
81AH8745

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$1.200
10+
$0.912
25+
$0.840
50+
$0.801
100+
$0.762
More Pricing...
Min: 1 / Mult: 1
-
-
-
Adjustable
-
1Outputs
-
Synchronous Buck (Step Down)
-
-
3.8V
-
32V
2A
2A
-
TSOT-26
-
-
6Pins
Surface Mount
-
-
-
800mV
32V
-
500kHz
88%
-40°C
85°C
-
-
81AH8747

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$1.210
10+
$0.922
25+
$0.859
50+
$0.819
100+
$0.772
More Pricing...
Min: 1 / Mult: 1
-
-
-
Fixed
-
1Outputs
-
Synchronous Buck (Step Down)
-
-
3.8V
-
32V
2A
2A
-
TSOT-26
-
-
6Pins
Surface Mount
-
3.3V
3.3V
-
-
-
1.1MHz
88%
-40°C
85°C
-
-
28AH4859

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
1+
$3.400
10+
$2.530
25+
$2.310
50+
$2.200
100+
$2.080
More Pricing...
Min: 1 / Mult: 1
Min: 100 / Mult: 1
-
-
-
Adjustable
-
1Outputs
-
Synchronous Buck (Step Down)
-
-
4.5V
-
28V
8A
8A
-
PowerPAK MLP44
-
-
24Pins
Surface Mount
-
-
-
600mV
20V
-
1MHz
97%
-40°C
105°C
-
-
54AH3177

RoHS

MONOLITHIC POWER SYSTEMS (MPS)
Each (Supplied on Cut Tape)
Cut Tape
1+
$3.520
10+
$2.590
25+
$2.520
50+
$2.440
100+
$2.370
More Pricing...
Min: 1 / Mult: 1
Adjustable
-
-
Adjustable
-
1Outputs
-
Synchronous Buck (Step Down)
-
-
2.3V
-
5.5V
600mA
600mA
-
QFN
-
-
10Pins
Surface Mount
-
-
-
600mV
5.5V
-
2.4MHz
91%
-40°C
125°C
-
-
23AH3581

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$3.620
25+
$3.100
100+
$2.390
500+
$2.060
1000+
$1.480
More Pricing...
Min: 1 / Mult: 1
-
-
-
Adjustable
-
1Outputs
-
Synchronous Buck (Step Down)
-
-
3V
-
28V
8A
8A
-
PowerPAK MLP44
-
-
24Pins
Surface Mount
-
-
-
600mV
20V
-
1MHz
97%
-40°C
105°C
-
-
81AH8754

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$3.620
10+
$2.900
25+
$2.760
50+
$2.620
100+
$2.490
More Pricing...
Min: 1 / Mult: 1
-
-
-
Adjustable
-
1Outputs
-
Synchronous Buck (Step Down)
-
-
3.8V
-
40V
5A
5A
-
HSOIC
-
-
8Pins
Surface Mount
-
-
-
800mV
40V
-
500kHz
85%
-40°C
85°C
-
-
81AH8755

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$3.630
10+
$2.990
25+
$2.840
50+
$2.700
100+
$2.560
More Pricing...
Min: 1 / Mult: 1
-
-
-
Adjustable
-
1Outputs
-
Synchronous Buck (Step Down)
-
-
3.8V
-
40V
5A
5A
-
HSOIC
-
-
8Pins
Surface Mount
-
-
-
800mV
40V
-
570kHz
85%
-40°C
85°C
-
-
29AH7922

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$0.376
10+
$0.312
25+
$0.296
50+
$0.283
100+
$0.271
More Pricing...
Min: 5 / Mult: 5
-
-
-
Adjustable
-
1Outputs
-
Synchronous Buck (Step Down)
-
-
2.5V
-
5.5V
1A
1A
-
SOT-23
-
-
5Pins
Surface Mount
-
-
-
600mV
5.5V
-
1.5MHz
95%
-40°C
125°C
-
-
81AH8749

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$1.420
10+
$1.090
25+
$0.998
50+
$0.954
100+
$0.908
More Pricing...
Min: 1 / Mult: 1
-
-
-
Adjustable
-
1Outputs
-
Synchronous Buck (Step Down)
-
-
3.8V
-
32V
3A
3A
-
TSOT-26
-
-
6Pins
Surface Mount
-
-
-
800mV
31V
-
500kHz
88%
-40°C
85°C
-
-
76AH4723

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$0.420
10+
$0.323
25+
$0.301
50+
$0.283
100+
$0.265
More Pricing...
Min: 5 / Mult: 5
-
-
-
Adjustable
-
1Outputs
-
Synchronous Buck (Step Down)
-
-
2.7V
-
5.5V
2A
2A
-
TSOT-25
-
-
5Pins
Surface Mount
-
-
-
600mV
5.5V
-
1MHz
-
-40°C
85°C
-
-
04AJ4567

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$11.710
10+
$8.330
25+
$7.940
50+
$7.430
100+
$6.900
More Pricing...
Min: 1 / Mult: 1
-
-
-
Adjustable
-
1Outputs
-
Synchronous Buck (Step Down)
-
-
4.5V
-
20V
40A
40A
-
PowerPAK MLP34-57
-
-
34Pins
Surface Mount
-
-
-
600mV
12V
-
1.5MHz
96%
-40°C
85°C
-
-
12AJ6796

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$0.499
10+
$0.374
25+
$0.341
50+
$0.323
100+
$0.305
More Pricing...
Min: 5 / Mult: 5
-
-
-
Adjustable
-
1Outputs
-
Synchronous Buck (Step Down)
-
-
4.2V
-
18V
3A
3A
-
TSOT-26
-
-
6Pins
Surface Mount
-
-
-
800mV
7V
-
750kHz
83%
-40°C
85°C
-
-
12AJ6797

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$0.605
10+
$0.451
25+
$0.417
50+
$0.395
100+
$0.373
More Pricing...
Min: 1 / Mult: 1
-
-
-
Adjustable
-
1Outputs
-
Synchronous Buck (Step Down)
-
-
4.2V
-
18V
3A
3A
-
TSOT-26
-
-
6Pins
Surface Mount
-
-
-
800mV
7V
-
750kHz
83%
-40°C
85°C
-
-
28AH5980

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$3.340
10+
$3.190
25+
$3.030
50+
$2.900
100+
$2.770
Min: 1 / Mult: 1
-
-
-
Adjustable
-
1Outputs
-
Synchronous Buck (Step Down)
-
-
3V
-
17V
2A
2A
-
QFN
-
-
16Pins
Surface Mount
-
-
-
900mV
6V
-
2.5MHz
-
-40°C
85°C
-
-
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