Non-Isolated DC-DC Converters

Non-isolated DC-DC converters are electronic devices that convert a source of direct current (DC) from one voltage level to another. They are a type of electric power converter. Isolated DC-DC converters are based on the same principle of operation, but keep the input and output electrically isolated by a transformer. This allows for different voltages between inputs and outputs, much more considerable than with non-isolated ones.

What are non-isolated DC-DC converters used for?

DC-DC converters are used in portable electronic devices such as mobile phones and laptops, which are primarily supplied with power from batteries. Non-isolated DC-DC converters increase voltage from a partially lowered battery voltage, thereby saving space instead of using multiple batteries. Most DC-DC converter circuits also regulate the output voltage.

Types of non-isolated DC - DC converters

Non-isolated DC-DC converters have different protection features for your devices. They can ensure current limit, over current and over temperature protection. Many of them guarantee over voltage and under voltage protection, and prevent short circuits. Some of them have very high efficiency (up to 95%) which means that they do not require heatsinks or fans.

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Description Price Input Voltage Range Input Voltage Nominal Output Voltage Output Current Power Rating Mounting Type Number of Outputs Length Width Depth Efficiency Package Minimum Temperature Maximum Temperature
RS Stock No. 689-4703
Mfr. Part No.OKL-T/3-W12N-C
4.5 → 14 V dc 12 V dc 0.591 → 5.5V dc 3A 15W Surface Mount 1 12.19mm 12.19mm 6.2mm 93% Case C-83 -40°C +85°C
RS Stock No. 815-9620
Mfr. Part No.BRNS20
3 → 14.4 V dc - 0.6 → 5.5V dc 20A - PCB Mount 1 20.3mm 11.4mm 8.5mm 87% - -40°C +85°C
RS Stock No. 815-9624
Mfr. Part No.BRFS30
4.5 → 14 V dc - 0.8 → 3.63V dc 30A - PCB Mount 1 33mm 13.5mm 9.5mm 88% - -40°C +85°C
RS Stock No. 461-979
Mfr. Part No.LDO06C-005W05-VJ
3 → 13.8 V dc - 0.59 → 5.1V dc 6A 30W Through Hole 1 10.41mm 9.42mm 16.51mm - - -40°C +85°C
RS Stock No. 173-6944
Mfr. Part No.OKL-T/6-W12N-C
4.5 → 14 V dc 12 V dc 5.5V dc 6A 30W Surface Mount 1 12.19mm 12.19mm 7.2mm 93% Case C-83 -40°C -
RS Stock No. 124-4230
Mfr. Part No.R420-1.8/PL
10 → 36 V dc 24 V dc 5V dc 10mA - Surface Mount 1 22.7mm 13.2mm 5.08mm 76 (Typ.)% - -40°C +105°C
RS Stock No. 166-8770
Mfr. Part No.R-543.3PA
1 Tube of 15
4.5 → 18 V dc 12 V dc 3.3V dc 4A 6W Through Hole 1 32.2mm 9.1mm 15mm 93% SIP -40°C +85°C
RS Stock No. 162-2657
Mfr. Part No.R-78T5.0-1.0/AL-TRAY
1 Tray of 25
- - 5V dc 1A - Screw Mount, Surface Mount 1 23mm 25mm 10mm 92% SIP -40°C +85°C
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