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540kHz DC / DC Switching Regulators:

9,602 Products Found

Farnell 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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DC / DC Converter Type
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Supply Voltage
Supply Voltage Min
Topology
No. of Step-Down DC - DC Converters
Supply Voltage Max
PWM Input Frequency
No. of Monitored Voltages
Supply Voltage Range
Input Voltage Min
Duty Cycle (%)
Input Voltage Max
No. of Regulated Outputs
Digital IC Case
Interface Case Style
ADC / DAC Case Style
Output Current - Output 1
Max Output Current
Output Current
Output Current - Output 2
Reset Output Type
IC Case / Package
Output Voltage - Output 1
No. of Pins
Switching Frequency Max
Output Voltage - Output 2
IC Mounting
Output Voltage - Nom
Output Voltage Min
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Output Voltage Max
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1077141

RoHS

Each
1+
£1.900
10+
£1.430
25+
£1.310
50+
£1.210
100+
£1.090
More Pricing...
Min: 1 / Mult: 1
-
-
-
Adjustable
-
-
1Outputs
-
-
-
Buck (Step Down)
-
-
-
-
-
4.4V
-
36V
-
-
-
-
-
1A
1A
-
-
SOIC
-
8Pins
-
-
Surface Mount
-
-
1.2V
-
35V
250kHz
90%
-40°C
150°C
-
-
1800207

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
£0.569
25+
£0.473
100+
£0.436
3000+
£0.401
Min: 1 / Mult: 1
-
-
-
Adjustable
-
-
1Outputs
-
-
-
Synchronous Boost (Step Up)
-
-
-
-
-
650mV
-
5.5V
-
-
-
-
-
350mA
350mA
-
-
SOT-23
-
6Pins
-
-
Surface Mount
-
-
2V
-
5.5V
500kHz
96%
-40°C
85°C
-
-
1698209

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
£1.180
10+
£0.865
50+
£0.791
100+
£0.662
250+
£0.622
More Pricing...
Min: 1 / Mult: 1
-
-
-
Adjustable
-
-
1Outputs
-
-
-
Buck (Step Down)
-
-
-
-
-
9V
-
46V
-
-
-
-
-
3A
3A
-
-
QFN
-
16Pins
-
-
Surface Mount
-
-
800mV
-
5V
2MHz
-
-40°C
105°C
-
-
1077143

RoHS

Date/Lot Code

Each
Packaging Options
1+
£2.060
10+
£1.630
25+
£1.490
50+
£1.420
100+
£1.350
More Pricing...
Min: 1 / Mult: 1
-
-
-
Adjustable
-
-
1Outputs
-
-
-
Buck (Step Down)
-
-
-
-
-
4V
-
36V
-
-
-
-
-
2A
2A
-
-
HSOP
-
8Pins
-
-
Surface Mount
-
-
1.235V
-
35V
500kHz
90%
-40°C
150°C
-
-
1077142

RoHS

Each
1+
£2.010
10+
£1.500
50+
£1.370
100+
£1.230
250+
£1.150
More Pricing...
Min: 1 / Mult: 1
-
-
-
Adjustable
-
-
1Outputs
-
-
-
Buck (Step Down)
-
-
-
-
-
4.4V
-
36V
-
-
-
-
-
2A
2A
-
-
SOIC
-
8Pins
-
-
Surface Mount
-
-
1.235V
-
35V
250kHz
90%
-40°C
150°C
-
-
2311341

RoHS

Date/Lot Code

Each
1+
£1.770
10+
£1.400
25+
£1.310
50+
£1.210
100+
£1.170
More Pricing...
Min: 1 / Mult: 1
-
-
-
Adjustable
-
-
1Outputs
-
-
-
Buck (Step Down)
-
-
-
-
-
4.5V
-
38V
-
-
-
-
-
3A
3A
-
-
HSOP
-
8Pins
-
-
Surface Mount
-
-
600mV
-
-
250kHz
-
-40°C
150°C
-
-
2414135

RoHS

Date/Lot Code

Each
1+
£1.200
25+
£1.000
100+
£0.924
250+
£0.850
Min: 1 / Mult: 1
-
-
-
Adjustable
-
-
1Outputs
-
-
-
Synchronous Buck (Step Down)
-
-
-
-
-
4.4V
-
30V
-
-
-
-
-
1A
1A
-
-
MSOP
-
8Pins
-
-
Surface Mount
-
-
2V
-
24V
500kHz
95%
-40°C
125°C
-
AEC-Q100
2460737

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
£1.460
10+
£1.080
50+
£0.983
100+
£0.872
250+
£0.828
More Pricing...
Min: 1 / Mult: 1
-
-
-
Adjustable
-
-
1Outputs
-
-
-
Synchronous Buck (Step Down)
-
-
-
-
-
2.5V
-
18V
-
-
-
-
-
3A
3A
-
-
PowerSO
-
8Pins
-
-
Surface Mount
-
-
800mV
-
-
900kHz
90%
-40°C
125°C
-
-
2947830

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
£1.090
10+
£0.798
50+
£0.720
100+
£0.607
250+
£0.571
More Pricing...
Min: 1 / Mult: 1
-
-
-
Adjustable
-
-
1Outputs
-
-
-
Buck (Step Down)
-
-
-
-
-
8V
-
50V
-
-
-
-
-
3A
3A
-
-
HSOIC
-
8Pins
-
-
Surface Mount
-
-
800mV
-
24V
-
-
-20°C
85°C
-
-
3007259

RoHS

Date/Lot Code

Each
1+
£3.330
10+
£2.550
25+
£2.170
50+
£2.000
100+
£1.910
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
-
3133319

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
£1.770
10+
£1.320
25+
£1.200
50+
£1.100
100+
£0.994
More Pricing...
Min: 1 / Mult: 1
-
-
-
Adjustable
-
-
3Outputs
-
-
3 Output
Buck (Step Down)
-
-
-
-
-
4.5V
-
34V
-
-
-
-
1.5A
-
-
1.5A
-
QFN-EP
5V
20Pins
-
3.3V
Surface Mount
-
-
800mV
-
5V
550kHz
-
-40°C
85°C
-
-
3582934

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
£4.110
10+
£2.870
25+
£2.670
50+
£2.460
100+
£2.160
More Pricing...
Min: 1 / Mult: 1
-
-
-
Adjustable
-
-
1Outputs
-
-
-
Buck (Step Down)
-
-
-
-
-
3.8V
-
55V
-
-
-
-
-
2A
2A
-
-
HSOIC
-
8Pins
-
-
Surface Mount
-
-
800mV
-
52V
1MHz
95%
-40°C
125°C
-
-
3392519

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
£0.650
10+
£0.465
100+
£0.369
500+
£0.320
1000+
£0.296
More Pricing...
Min: 1 / Mult: 1
-
-
-
Adjustable
-
-
1Outputs
-
-
-
Synchronous Buck (Step Down)
-
-
-
-
-
2.38V
-
5.5V
-
-
-
-
-
2A
2A
-
-
UTQFN
-
6Pins
-
-
Surface Mount
-
-
600mV
-
-
1.1MHz
-
-40°C
125°C
-
-
3212629

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
£1.800
10+
£1.340
50+
£1.230
100+
£1.050
250+
£0.988
More Pricing...
Min: 1 / Mult: 1
-
-
-
Adjustable
-
-
1Outputs
-
-
-
Synchronous Buck (Step Down)
-
-
-
-
-
3V
-
28V
-
-
-
-
-
8A
8A
-
-
PowerPAK MLP44
-
24Pins
-
-
Surface Mount
-
-
600mV
-
25.2V
1MHz
97%
-40°C
105°C
-
-
3535652

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
£0.813
10+
£0.588
50+
£0.532
100+
£0.431
250+
£0.405
More Pricing...
Min: 1 / Mult: 1
-
-
-
Fixed
-
-
1Outputs
-
-
-
Synchronous Boost (Step Up)
-
-
-
-
-
650mV
-
6V
-
-
-
-
-
500mA
500mA
-
-
SOT-25
-
5Pins
-
-
Surface Mount
5V
5V
-
-
-
1.2MHz
90%
-40°C
85°C
-
-
3358095

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
£1.540
10+
£1.530
25+
£1.520
50+
£1.510
100+
£1.500
More Pricing...
Min: 1 / Mult: 1
-
-
-
Adjustable
-
-
1Outputs
-
-
-
Synchronous Buck (Step Down)
-
-
-
-
-
3.3V
-
36V
-
-
-
-
-
2.2A
2.2A
-
-
QFN
-
16Pins
-
-
Surface Mount
-
-
-
-
-
2.5MHz
-
-40°C
125°C
-
AEC-Q100
3357980

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
£2.170
10+
£1.900
25+
£1.740
50+
£1.600
100+
£1.350
More Pricing...
Min: 1 / Mult: 1
-
-
-
Adjustable
-
-
1Outputs
-
-
-
Synchronous Buck (Step Down)
-
-
-
-
-
4.5V
-
24V
-
-
-
-
-
3A
3A
-
-
TSOT-23
-
8Pins
-
-
Surface Mount
-
-
800mV
-
22.8V
500kHz
-
-40°C
125°C
-
-
2111991

RoHS

Date/Lot Code

Each
1+
£3.010
10+
£2.280
25+
£2.100
50+
£1.930
100+
£1.750
More Pricing...
Min: 1 / Mult: 1
-
-
-
Adjustable
-
-
2Outputs
-
-
2 Output
Buck (Step Down)
-
-
-
-
-
4.5V
-
28V
-
-
-
-
3A
3A
3A
3A
-
TQFN
28V
28Pins
-
28V
Surface Mount
-
-
800mV
-
28V
2MHz
-
-40°C
85°C
-
-
2460737RL

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
£0.872
250+
£0.828
500+
£0.798
1000+
£0.761
2500+
£0.710
Min: 100 / Mult: 1
-
-
-
Adjustable
-
-
1Outputs
-
-
-
Synchronous Buck (Step Down)
-
-
-
-
-
2.5V
-
18V
-
-
-
-
-
3A
3A
-
-
PowerSO
-
8Pins
-
-
Surface Mount
-
-
800mV
-
-
900kHz
90%
-40°C
125°C
-
-
2460829

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
£1.190
10+
£0.914
50+
£0.827
100+
£0.742
250+
£0.645
More Pricing...
Min: 1 / Mult: 1
-
-
-
Fixed
-
-
1Outputs
-
-
-
Buck-Boost
-
-
-
-
-
2.4V
-
5.5V
-
-
-
-
-
800mA
800mA
-
-
Flip-Chip
-
20Pins
-
-
Surface Mount
3.3V
3.3V
-
-
-
2.5MHz
92%
-40°C
85°C
-
-
2519071

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
£3.130
10+
£2.460
25+
£2.280
100+
£2.030
250+
£1.960
More Pricing...
Min: 1 / Mult: 1
-
-
-
Fixed
-
-
1Outputs
-
-
-
Boost (Step Up)
-
-
-
-
-
800mV
-
5.5V
-
-
-
-
-
150mA
150mA
-
-
TSOT
-
5Pins
-
-
Surface Mount
3.3V
3.3V
-
-
3.3V
-
90%
-40°C
85°C
-
-
2765042

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
£2.200
10+
£2.170
25+
£2.140
100+
£1.910
250+
£1.870
More Pricing...
Min: 1 / Mult: 1
-
-
-
Adjustable
-
-
1Outputs
-
-
-
Synchronous Buck (Step Down)
-
-
-
-
-
4.5V
-
60V
-
-
-
-
-
1A
1A
-
-
TDFN
-
10Pins
-
-
Surface Mount
-
-
900mV
-
55.2V
600kHz
90%
-40°C
125°C
Himalaya Series
-
2947830RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
£0.607
250+
£0.571
500+
£0.548
1000+
£0.530
2500+
£0.519
Min: 100 / Mult: 1
-
-
-
Adjustable
-
-
1Outputs
-
-
-
Buck (Step Down)
-
-
-
-
-
8V
-
50V
-
-
-
-
-
3A
3A
-
-
HSOIC
-
8Pins
-
-
Surface Mount
-
-
800mV
-
24V
-
-
-20°C
85°C
-
-
2849799

RoHS

Date/Lot Code

Each
1+
£1.880
10+
£1.410
50+
£1.290
100+
£1.060
250+
£1.000
More Pricing...
Min: 1 / Mult: 1
-
-
-
Adjustable
-
-
1Outputs
-
-
-
Boost (Step Up)
-
-
-
-
-
4V
-
6V
-
-
-
-
-
1A
1A
-
-
DFN
-
8Pins
-
-
Surface Mount
-
-
6V
-
12V
1.2MHz
90%
-25°C
125°C
-
-
2909727

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
£1.880
10+
£1.800
25+
£1.780
100+
£1.750
250+
£1.720
More Pricing...
Min: 1 / Mult: 1
-
-
-
Fixed
-
-
1Outputs
-
-
-
Synchronous Buck (Step Down)
-
-
-
-
-
4.5V
-
60V
-
-
-
-
-
500mA
500mA
-
-
TDFN-EP
-
10Pins
-
-
Surface Mount
3.3V
3.3V
-
-
-
600kHz
90%
-40°C
125°C
Himalaya Series
-
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