Constant Frequency DC / DC Controllers:

21 Products Found

Newark 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
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Supply Voltage Min
Supply Voltage Max
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IC Case / Package
No. of Pins
Switching Frequency
Topology
Operating Temperature Min
Operating Temperature Max
Packaging
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1 Filter(s) Selected
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55AC2778

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$1.880
10+
$1.730
25+
$1.570
50+
$1.510
100+
$1.440
Min: 1 / Mult: 1
Constant Frequency
4.5V
75V
1Outputs
85%
QFN
16Pins
600kHz
Synchronous Buck (Step Down)
-40°C
125°C
78AH1852

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$1.570
10+
$1.460
25+
$1.330
50+
$1.320
100+
$1.300
Min: 1 / Mult: 1
Constant Frequency
4.5V
38V
1Outputs
85%
QFN-EP
16Pins
600kHz
Synchronous Buck (Step Down)
-40°C
125°C
06AC2415

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$1.650
10+
$1.510
25+
$1.370
50+
$1.350
100+
$1.330
Min: 1 / Mult: 1
Constant Frequency
4.5V
75V
1Outputs
85%
QFN
16Pins
800kHz
Synchronous Buck (Step Down)
-40°C
125°C
73Y2490

RoHS

Date/Lot Code

Each
1+
$11.470
10+
$8.970
25+
$8.350
50+
$8.010
100+
$7.670
More Pricing...
Min: 1 / Mult: 1
Constant Frequency
4.5V
30V
1Outputs
99%
QSOP
16Pins
300kHz
Synchronous Buck (Step Down)
-40°C
85°C
73Y2493

RoHS

Date/Lot Code

Each
1+
$13.210
10+
$10.380
25+
$9.680
50+
$9.290
100+
$8.900
More Pricing...
Min: 1 / Mult: 1
Constant Frequency
4.5V
30V
1Outputs
99%
QSOP
16Pins
300kHz
Synchronous Buck (Step Down)
-40°C
85°C
84AH1246

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$1.980
10+
$1.320
25+
$1.110
50+
$1.010
100+
$0.917
More Pricing...
Min: 1 / Mult: 1
Constant Frequency
2.8V
16V
1Outputs
100%
SOT-25
5Pins
1MHz
Buck (Step Down)
-40°C
85°C
84AH1248

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$2.110
10+
$1.350
25+
$1.150
50+
$1.040
100+
$0.917
More Pricing...
Min: 1 / Mult: 1
Constant Frequency
2.8V
16V
1Outputs
100%
SOT-25
5Pins
500kHz
Buck (Step Down)
-40°C
85°C
84AH1247

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$2.110
10+
$1.350
25+
$1.150
50+
$1.050
100+
$0.951
More Pricing...
Min: 1 / Mult: 1
Constant Frequency
2.8V
16V
1Outputs
100%
SOT-25
5Pins
1MHz
Buck (Step Down)
-40°C
85°C
84AH1249

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$2.120
10+
$1.360
25+
$1.160
50+
$1.040
100+
$0.926
More Pricing...
Min: 1 / Mult: 1
Constant Frequency
2.8V
16V
1Outputs
100%
SOT-25
5Pins
300kHz
Buck (Step Down)
-40°C
85°C
50AK3198

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$11.630
10+
$7.950
25+
$6.990
50+
$6.450
100+
$5.910
More Pricing...
Min: 1 / Mult: 1
Constant Frequency
9.3V
100V
1Outputs
93%
NSSOP
16Pins
300kHz
Synchronous Buck (Step Down)
-40°C
85°C
51AK6979

RoHS

Date/Lot Code

Each
1+
$12.340
10+
$8.460
25+
$6.880
94+
$6.480
141+
$6.080
More Pricing...
Min: 1 / Mult: 1
Constant Frequency
9.3V
100V
1Outputs
93%
SSOP
28Pins
300kHz
Synchronous Buck (Step Down)
-40°C
85°C
50AK4248

RoHS

Date/Lot Code

Each
1+
$15.730
10+
$10.960
25+
$8.920
50+
$8.590
146+
$8.580
More Pricing...
Min: 1 / Mult: 1
Constant Frequency
10V
72V
1Outputs
-
QFN-EP
32Pins
1.7MHz
Synchronous Buck (Step Down)
-40°C
125°C
51AK6980

RoHS

Date/Lot Code

Each
1+
$11.630
10+
$7.940
25+
$6.990
50+
$6.440
100+
$5.900
More Pricing...
Min: 1 / Mult: 1
Constant Frequency
4.1V
60V
1Outputs
93%
NSSOP
16Pins
300kHz
Synchronous Buck (Step Down)
-40°C
125°C
51AK6982

RoHS

Date/Lot Code

Each
1+
$12.750
10+
$7.720
25+
$7.710
50+
$7.700
100+
$6.460
More Pricing...
Min: 1 / Mult: 1
Constant Frequency
4.1V
60V
1Outputs
93%
NSSOP
16Pins
300kHz
Synchronous Buck (Step Down)
-40°C
85°C
50AK3199

RoHS

Each
1+
$10.730
10+
$6.530
25+
$6.210
50+
$6.080
100+
$6.000
More Pricing...
Min: 1 / Mult: 1
Constant Frequency
9.3V
100V
1Outputs
93%
NSSOP
16Pins
300kHz
Synchronous Buck (Step Down)
-40°C
150°C
51AK6983

RoHS

Date/Lot Code

Each
1+
$12.750
10+
$7.720
25+
$7.720
50+
$7.710
100+
$6.460
More Pricing...
Min: 1 / Mult: 1
Constant Frequency
9.3V
100V
1Outputs
93%
NSSOP
16Pins
300kHz
Synchronous Buck (Step Down)
-40°C
125°C
50AK3197

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$11.540
10+
$7.950
25+
$6.990
50+
$6.450
100+
$5.910
More Pricing...
Min: 1 / Mult: 1
Constant Frequency
4.1V
60V
1Outputs
93%
NSSOP
16Pins
300kHz
Synchronous Buck (Step Down)
-40°C
125°C
51AK4422

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
$0.722
Min: 1 / Mult: 1
Constant Frequency
8V
75V
1Outputs
85%
VQFN
32Pins
1MHz
Synchronous Buck (Step Down)
-40°C
125°C
88H4731

RoHS

Each
100+
$1.590
Min: 150 / Mult: 25
Constant Frequency
-
20V
1Outputs
-
DIP
16Pins
2.2MHz
Flyback
0°C
70°C
74AC1438

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
1+
$1.650
10+
$1.510
25+
$1.420
Min: 1 / Mult: 1
Constant Frequency
4.5V
75V
1Outputs
85%
VQFN
16Pins
800kHz
Synchronous Buck (Step Down)
-40°C
125°C
15AC6858

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
$2.550
10+
$1.670
25+
$1.450
50+
$1.330
100+
$1.200
More Pricing...
Min: 1 / Mult: 1
Constant Frequency
4.5V
19V
1Outputs
-
WQFN
16Pins
500kHz
Buck (Step Down)
-40°C
105°C
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