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. 181-3286
Mfr. Part No.I3A4W005A150V-001-R
BrandTDK-Lambda
HK$319.65
Each
units
9 → 53 V dc 9 → 53 V dc 15V dc 4.5A 100W PCB Mount 1 23.4mm 19.1mm 9.6mm 97.5% 1/32 Brick -40°C +125°C
RS Stock No. 135-9181
Mfr. Part No.MYMGK1R820FRSR
BrandMurata
HK$221.12
Each
units
4.5 → 5.5 V dc 5 V dc 1.8V dc 20A 36W Surface Mount 1 10.5mm 9mm 5.6mm 89.2% - -40°C +85°C
RS Stock No. 134-6466
Mfr. Part No.410-293-A
BrandDigilent
HK$178.71
Each
units
4.5 → 5.5 V dc 5 V dc ±12V dc 100mA 2.2W - 2 - - - - - - -
RS Stock No. 811-1417
Mfr. Part No.R-78T5.0-1.0/FC
BrandRecom
HK$116.50
Each
units
- - 5V dc 1A - Screw Mount, Surface Mount 1 23mm 25mm 10mm 92% SIP -40°C +85°C
RS Stock No. 689-4753
Mfr. Part No.OKX2-T/16-D12N-C
HK$170.89
Each
units
8.3 → 14 V dc 12 V dc 0.753 → 5.5V dc 16A 80W Through Hole 1 50.8mm 9.4mm 12.7mm - SIP -40°C +85°C
RS Stock No. 167-0943
Mfr. Part No.OKY-T/3-W5P-C
HK$19,614.84
1 Reel of 400
Reel(s)
2.4 → 5.5 V dc 5 V dc 0.753 → 3.63V dc 3A 9.9W Surface Mount 1 20.8mm 11.9mm 5.41mm - - -40°C +85°C
RS Stock No. 135-8879
Mfr. Part No.MYMGK1R806FRSR
BrandMurata
HK$31,575.12
1 Reel of 400
Reel(s)
4.5 → 5.5 V dc 5 V dc - - - Surface Mount 1 - - - 90% - -40°C +85°C
RS Stock No. 891-3402
Mfr. Part No.SCD30D15-DN
BrandSolaHD
HK$1,907.36
Each
units
20 → 72 V dc - -15 V dc, 15 V dc 800mA 30W Chassis Mount, DIN Rail Mount 2 120mm 65mm 33mm - - -25°C +65°C
RS Stock No. 167-0971
Mfr. Part No.OKX2-T/10-D12N-C
HK$12,651.69
1 Tray of 114
Tray(s)
8.3 → 14 V dc 12 V dc 0.753 → 5.5V dc 10A 50W Through Hole 1 50.8mm 9.4mm 12.7mm - SIP -40°C +85°C
RS Stock No. 152-473
Mfr. Part No.AXH005A0X-SRZ
HK$102.26
Each
units
3 → 5.8 V dc - 0.75 → 4V dc 5A - Surface Mount 1 20.3mm 11.4mm 5.7mm - - -40°C +85°C
RS Stock No. 167-0973
Mfr. Part No.OKX2-T/16-D12N-C
HK$13,587.75
1 Tray of 114
Tray(s)
8.3 → 14 V dc 12 V dc 0.753 → 5.5V dc 16A 80W Through Hole 1 50.8mm 9.4mm 12.7mm - SIP -40°C +85°C
RS Stock No. 870-3599
Mfr. Part No.ILR-11-0001
BrandSchurter
HK$34.74
Each (In a Pack of 50)
units
- - - - - Through Hole - - - - - - - -
RS Stock No. 689-4747
Mfr. Part No.OKX2-T/10-D12P-C
HK$147.06
Each
units
8.3 → 14 V dc 12 V dc 0.753 → 5.5V dc 10A 50W Through Hole 1 50.8mm 9.4mm 12.7mm - SIP -40°C +85°C
RS Stock No. 234-979
Mfr. Part No.3590-1A20
HK$5,411.69
Each
units
21.6 → 30 V dc 24 V dc 0 → 5kV 1mA - Screw Mount 1 95.2mm 49.8mm 20mm - - 0°C +50°C
RS Stock No. 234-913
Mfr. Part No.3590-1320
HK$6,273.27
Each
units
10.8 → 15.6 V dc 12 V dc 0 → 10kV 500µA - Screw Mount 1 95.2mm 49.8mm 20mm - - 0°C +50°C
RS Stock No. 167-0631
Mfr. Part No.OKY-T/3-D12N-C
HK$19,614.84
1 Reel of 400
Reel(s)
8.3 → 14 V dc 12 V dc 0.75 → 5.5V dc 3A 15W Surface Mount 1 20.8mm 11.9mm 7mm - - -40°C +85°C
RS Stock No. 166-8770
Mfr. Part No.R-543.3PA
BrandRecom
HK$229.384
1 Tube of 15
Tube(s)
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. 173-6935
Mfr. Part No.OKL-T/6-W12N-C
HK$24,132.00
1 Reel of 400
Reel(s)
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. 166-6575
Mfr. Part No.R-78T3.3-1.0/AL-TRAY
BrandRecom
HK$2,730.29
1 Tray of 25
Tray(s)
- - 3.3V dc 1A - Screw Mount, Surface Mount 1 23mm 25mm 10mm 88% SIP -40°C +85°C
RS Stock No. 235-051
Mfr. Part No.3590-1C20
HK$7,110.86
Each
units
21.6 → 30 V dc 24 V dc 0 → 10kV 500µA - Screw Mount 1 95.2mm 49.8mm 20mm - - 0°C +50°C
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