4.5V DC / DC Controllers:

194 Products Found

element14 offers an exclusive range of DC-DC converters that excel in applications ranging from automotive systems and industrial equipment to telecommunications and consumer electronics.

Modern DC-DC controllers incorporate advanced features such as programmable switching frequencies, synchronization capabilities, and adaptive dead-time control. They support various topologies, including buck, boost, buck-boost, and SEPIC configurations.

The primary function of DC-DC converters is to ensure stable and efficient power delivery. To do this, they convert the voltage of a direct current (DC) source from one level to another. DC-DC converters maintain a constant output voltage in applications where input voltage levels can fluctuate due to factors such as battery discharging over time or changes in load conditions. One significant advantage of DC-DC converters is their superior power conversion efficiency.

Key benefits include high-efficiency power conversion, precise output voltage regulation, comprehensive protection features, flexible design options, and support for a wide input voltage range. When selecting a DC-DC controller, engineers must consider input/output voltage requirements, load current, efficiency targets, PCB space constraints, and thermal management needs. For optimal performance, refer to manufacturer design guidelines and application notes specific to your requirements.

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Manufacturer
Control Mode
Supply Voltage Min
Supply Voltage Max
No. of Outputs
Duty Cycle (%)
IC Case / Package
No. of Pins
Switching Frequency
Topology
Operating Temperature Min
Operating Temperature Max
Product Range
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Packaging
Filter(s) Applied
1 Filter(s) Selected
ComparePrice ForQuantity
2514064

RoHS

Each
1+
HK$52.030
Min: 1 / Mult: 1
Constant Frequency
4.5V
30V
1Outputs
99%
QSOP
16Pins
300kHz
Synchronous Buck (Step Down)
-40°C
85°C
-
-
4026558

RoHS

Each
1+
HK$138.920
10+
HK$97.560
61+
HK$78.450
122+
HK$75.640
305+
HK$74.130
More Pricing...
Min: 1 / Mult: 1
Current Mode Control
4.5V
24V
2Outputs
-
QFN-EP
40Pins
1MHz
Synchronous Buck (Step Down)
-40°C
125°C
-
-
3008639

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
HK$16.290
10+
HK$13.870
100+
HK$13.320
Min: 1 / Mult: 1
-
4.5V
42V
1Outputs
100%
MSOP
8Pins
1MHz
Buck (Step Down)
-40°C
125°C
-
-
3008639RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
HK$13.320
Min: 100 / Mult: 1
-
4.5V
42V
1Outputs
100%
MSOP
8Pins
1MHz
Buck (Step Down)
-40°C
125°C
-
-
3491052RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
1+
HK$10.610
Min: 100 / Mult: 1
Constant Frequency
4.5V
38V
1Outputs
85%
QFN-EP
16Pins
600kHz
Synchronous Buck (Step Down)
-40°C
125°C
-
-
3491052

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
HK$10.610
Min: 1 / Mult: 1
Constant Frequency
4.5V
38V
1Outputs
85%
QFN-EP
16Pins
600kHz
Synchronous Buck (Step Down)
-40°C
125°C
-
-
4033884

RoHS

Each
1+
HK$112.870
10+
HK$77.600
73+
HK$61.330
146+
HK$61.260
292+
HK$61.230
More Pricing...
Min: 1 / Mult: 1
Current Mode Control
4.5V
24V
1Outputs
-
QFN-EP
32Pins
1MHz
Buck (Step Down)
-40°C
105°C
-
AEC-Q100
4033872

RoHS

Each
1+
HK$71.620
10+
HK$48.430
91+
HK$36.320
182+
HK$34.960
273+
HK$33.590
More Pricing...
Min: 1 / Mult: 1
Current Mode Control
4.5V
38V
1Outputs
-
QFN-EP
24Pins
770kHz
Synchronous Buck (Step Down)
-40°C
125°C
-
-
4244099

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
HK$47.350
10+
HK$31.160
25+
HK$26.880
50+
HK$24.500
100+
HK$22.120
More Pricing...
Min: 1 / Mult: 1
Current Mode Control
4.5V
20V
1Outputs
-
WQFN-EP
40Pins
1.2MHz
Synchronous Buck (Step Down)
-40°C
105°C
-
AEC-Q100
4244099RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
HK$22.120
250+
HK$19.730
500+
HK$18.990
1000+
HK$18.860
Min: 100 / Mult: 1
Current Mode Control
4.5V
20V
1Outputs
-
WQFN-EP
40Pins
1.2MHz
Synchronous Buck (Step Down)
-40°C
105°C
-
AEC-Q100
4176073

RoHS

Each
1+
HK$134.730
10+
HK$94.440
52+
HK$77.130
104+
HK$72.660
260+
HK$71.210
More Pricing...
Min: 1 / Mult: 1
Current Mode Control
4.5V
38V
3Outputs
100%
QFN-EP
38Pins
835kHz
Synchronous Boost, Synchronous Buck
-40°C
150°C
-
AEC-Q100
2516624

RoHS

Each
1+
HK$25.620
10+
HK$25.540
75+
HK$25.460
150+
HK$25.380
300+
HK$25.300
More Pricing...
Min: 1 / Mult: 1
Current Mode Control
4.5V
60V
1Outputs
-
TQFN
20Pins
2.2MHz
Synchronous Buck (Step Down)
-40°C
125°C
Himalaya Series
-
2851606

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
HK$12.650
25+
HK$10.950
100+
HK$10.500
Min: 1 / Mult: 1
Constant Frequency
4.5V
75V
1Outputs
85%
QFN
16Pins
600kHz
Synchronous Buck (Step Down)
-40°C
125°C
-
-
2845227

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
HK$9.770
10+
HK$7.990
100+
HK$5.670
500+
HK$4.290
Min: 1 / Mult: 1
Current Mode Control
4.5V
24V
2Outputs
100%
QFN
24Pins
800kHz
Synchronous Buck (Step Down)
-40°C
100°C
-
-
2516647

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
HK$40.090
10+
HK$30.540
25+
HK$28.150
100+
HK$25.510
250+
HK$24.260
More Pricing...
Min: 1 / Mult: 1
Current Mode Control
4.5V
40V
1Outputs
87.5%
QSOP
16Pins
1MHz
Synchronous Buck (Step Down)
-40°C
125°C
-
-
2627519

RoHS

Each
1+
HK$73.990
10+
HK$57.500
25+
HK$53.380
100+
HK$48.860
250+
HK$47.150
More Pricing...
Min: 1 / Mult: 1
Current Mode Control
4.5V
60V
1Outputs
69%
TQFN
16Pins
250kHz
Flyback
-40°C
125°C
MAX17690
-
3008675

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
HK$27.460
10+
HK$20.640
25+
HK$18.910
50+
HK$17.970
100+
HK$17.020
More Pricing...
Min: 1 / Mult: 1
Current Mode Control
4.5V
38V
1Outputs
95%
WQFN
16Pins
1MHz
Synchronous Boost (Step Up)
-40°C
150°C
-
-
2516651

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
HK$17.950
10+
HK$17.260
25+
HK$16.570
100+
HK$15.870
250+
HK$15.180
More Pricing...
Min: 1 / Mult: 1
Current Mode Control
4.5V
60V
1Outputs
91.5%
TDFN
8Pins
500kHz
Synchronous Buck (Step Down)
-40°C
125°C
Himalaya Series
-
3008667

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
HK$41.840
10+
HK$31.980
25+
HK$29.510
50+
HK$28.860
100+
HK$28.210
More Pricing...
Min: 1 / Mult: 1
Current Mode Control
4.5V
65V
1Outputs
100%
HTSSOP
20Pins
875kHz
Synchronous Boost (Step Up)
-40°C
125°C
-
AEC-Q100
3437281

RoHS

Each
1+
HK$65.020
10+
HK$50.330
25+
HK$46.660
100+
HK$42.620
490+
HK$39.570
More Pricing...
Min: 1 / Mult: 1
Current Mode Control
4.5V
36V
1Outputs
-
SWTQFN-EP
24Pins
2.2MHz
Buck-Boost
-40°C
125°C
-
AEC-Q100
2513986

RoHS

Each
1+
HK$71.360
10+
HK$55.430
50+
HK$49.040
100+
HK$47.060
250+
HK$44.970
More Pricing...
Min: 1 / Mult: 1
Current Mode Control
4.5V
36V
1Outputs
100%
µMAX
10Pins
330kHz
Buck (Step Down)
-40°C
125°C
-
-
2516625

RoHS

Each
1+
HK$41.900
10+
HK$31.960
75+
HK$27.220
150+
HK$26.120
300+
HK$25.210
More Pricing...
Min: 1 / Mult: 1
Current Mode Control
4.5V
42V
1Outputs
-
TQFN
20Pins
2.2MHz
Synchronous Buck (Step Down)
-40°C
125°C
Himalaya Series
-
2909759

RoHS

Each
1+
HK$23.820
10+
HK$21.730
25+
HK$20.680
Min: 1 / Mult: 1
Current Mode Control
4.5V
40V
1Outputs
87.5%
QSOP
16Pins
1MHz
Synchronous Buck (Step Down)
-40°C
125°C
-
-
3526118

RoHS

Each
1+
HK$54.730
10+
HK$42.120
25+
HK$38.970
100+
HK$35.500
490+
HK$32.880
More Pricing...
Min: 1 / Mult: 1
Current Mode Control
4.5V
60V
1Outputs
-
TQFN-EP
24Pins
2.2MHz
Synchronous Buck (Step Down)
-40°C
125°C
-
-
3586761

RoHS

Each
1+
HK$31.110
10+
HK$23.490
25+
HK$21.580
100+
HK$19.480
300+
HK$18.310
More Pricing...
Min: 1 / Mult: 1
Current Mode Control
4.5V
36V
1Outputs
-
SWTQFN-EP
16Pins
400kHz
Synchronous Boost (Step Up)
-40°C
125°C
-
AEC-Q100
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