Isolated DC/DC Buck Boost Converters

Universally applicable, flexible, robust, excellent performance - the portfolio of Demke Electronic with isolated, mainly galvanically isolated DC/DC Boost and BuckBoost converters up to 600W power is wide. Isolated DC/DC step-up and step-down converters are assigned to the 300 and 700 series. Particularly outstanding is the flexibility combined with the highest efficiency with 1:10 ultra-wide range input.

Thanks to their universal design and discrete architecture, our isolated DC/DC step-up and step-down converters with their up to 1:10 ultra-wide input range stand out from other products and competitors and can be used in a variety of applications.

All products have excellent mechanical and electrical properties. Our DC/DC converters are extremely robust and long-term stable. With the help of integrated EMC input and output filters we limit the ripple of current and voltage to a minimum. All galvanically isolated DC/DC step-up and step-down converters comply with common industry standards, some even with the household EMC standard according to EN55022-B.

Of course, our isolated Demke DC-transformer can be used completely at ambient temperatures from -40°C to +85°C and are open-circuit and short-circuit proof over the entire specified temperature range. Our isolated DC/DC Buck-Boost power converters are therefore ideal for use as battery charging converters. High capacitive loads are regulated without any compromises thanks to the Buck-Boost stage.

The performance record is rounded off by the high specific power with a very high efficiency.

The polyurethane potting protects the assembly from environmental influences and distributes the heat loss during operation homogeneously over the entire device, so that passive heat dissipation via the bottom of the housing is sufficient in most cases.

We have listed a selection of galvanically isolated DC/DC buck and buck-boost converters. If the matching product is not listed, please have a look at our DC-Master 300, 700 - series and configure your DC/DC-converter by yourself.

Product features listed isolated DC/DC boost and buck-boost converters

  • Power range currently up to 600W
  • Ultra-wide input voltage range from 7V to 250V and more
  • Output voltages from 5V to 100V and more
  • Bipolar output voltages with unbalanced load distribution or as voltage doubling
  • Excellent CC/CV charging characteristic
  • Customer-specific adaptations possible
  • Passive heat dissipation via via housing base
  • Wall mounting and print mounting

Currently used

  • 12V power supply in forklift trucks and AGVs
  • 19V in mobile IT systems
  • 24V power supply in forklifts trucks, AGV and many more
  • 13.8V, 27V, 28V, 29V to 50.2V as backup battery charging converter
  • Universally applicable thanks to ultra-wide range input of 1:10

Overview DC/DC Buck Boost Converter isolated

isolated DC/DC buck-boost converter Typ DC-Transformer 334A2-24-SD with output voltage 24.0V, 72 watts and input voltage 22V to 160V

334A2-24-SD

Vin: 22 ... 160 VDC
Vout / Max. Current: 24.0 VDC / 3.0 ADC

isolated DC/DC buck converter Typ DC-Transformer 334W-12-SD with output voltage 12.0V, 50 watts and input voltage 16V to 160V

334W-12-SD

Vin: 16 ... 160 VDC
Vout / Max. Current: 12.0 VDC / 4.0 ADC

isolated DC/DC buck-boost converter Typ DC-Transformer 334W-24-SD with output voltage 24.0V, 50 watts and input voltage 16V to 160V

334W-24-SD

Vin: 16 ... 160 VDC
Vout / Max. Current: 24.0 VDC / 2.0 ADC

isolated DC/DC buck-boost converter Typ DC-Transformer 334W-24024-SD with output voltage 24.0V bipolar or 48Volt 50 watts and input voltage 16V to 160V

334W-24024-SD

Vin: 16 ... 160 VDC
Vout / Max. Current: ±24.0 VDC / ±1.0 ADC

isolated DC/DC buck-boost converter Typ DC-Transformer 335-24 with output voltage 24.0V, 50 watts and input voltage 22V to 100V

335-24

Vin: 22 ... 100 VDC
Vout / Max. Current: 24.0 VDC / 2.0 ADC

isolated DC/DC buck converter Typ DC-Transformer 337-13.8-SD with output voltage 13.8V, 80 watts and input voltage 22V to 80V

337-13.8-SD

Vin: 22 ... 80 VDC
Vout / Max. Current: 13.8 VDC / 6.0 ADC

isolated DC/DC buck-boost converter Typ DC-Transformer 344-24 with output voltage 24.0V, 50 watts and input voltage 22V to 160V

344-24

Vin: 22 ... 160 VDC
Vout / Max. Current: 24.0 VDC / 2.0 ADC

isolated DC/DC buck-boost converter Typ DC-Transformer 344-24-SD with output voltage 24.0V, 50 watts and input voltage 22V to 160V

344-24-SD

Vin: 22 ... 160 VDC
Vout / Max. Current: 24.0 VDC / 2.0 ADC

isolated DC/DC buck-boost converter Typ DC-Transformer 344C-24-SD with output voltage 24.0V, 50 watts and input voltage 22V to 160V

344C-24-SD

Vin: 22 ... 160 VDC
Vout / Max. Current: 24.0 VDC / 2.0 ADC

isolated DC/DC buck converter Typ DC-Transformer 344DH-13.8 with output voltage 13.8V, 70 watts and input voltage 22V to 160V

344DH-13.8

Vin: 22 ... 160 VDC
Vout / Max. Current: 13.8 VDC / 5.0 ADC

isolated DC/DC buck-boost converter Typ DC-Transformer 344DH-24 with output voltage 24.0V, 50 watts and input voltage 22V to 160V

344DH-24

Vin: 22 ... 160 VDC
Vout / Max. Current: 24.0 VDC / 2.0 ADC

isolated DC/DC buck-boost converter Typ DC-Transformer 344W-24-SD with output voltage 24.0V, 50 watts and input voltage 16V to 160V

344W-24-SD

Vin: 16 ... 160 VDC
Vout / Max. Current: 24.0 VDC / 2.0 ADC

isolated DC/DC buck-boost converter Typ DC-Transformer 345DH-24-SD with output voltage 24.0V, 100 watts and input voltage 22V to 100V

345DH-24-SD

Vin: 22 ... 100 VDC
Vout / Max. Current: 24.0 VDC / 4.0 ADC

isolated DC/DC buck converter Typ DC-Transformer 347W-5.6-SD with output voltage 5.6V, 30 watts and input voltage 16V to 63V

347W-5.6-SD

Vin: 16 ... 63 VDC
Vout / Max. Current: 5.6 VDC / 5.0 ADC

isolated DC/DC buck-boost converter Typ DC-Transformer 354W1-24-SD with output voltage 24.0V, 90 watts and input voltage 16V to 160V

354W1-24-SD

Vin: 16 ... 160 VDC
Vout / Max. Current: 24.0 VDC / 3.8 ADC

isolated DC/DC buck-boost converter Typ DC-Transformer 354W1-24024-SD with output voltage 24.0V bipolar or 48Volt 90 watts and input voltage 16V to 160V

354W1-24024-SD

Vin: 16 ... 160 VDC
Vout / Max. Current: ±24.0 VDC / ±1.9 ADC

isolated DC/DC buck converter Typ DC-Transformer 355W1-12.3-SD with output voltage 12.3V, 100 watts and input voltage 16V to 100V

355W1-12.3-SD

Vin: 16 ... 100 VDC
Vout / Max. Current: 12.3 VDC / 8.0 ADC

isolated DC/DC Typ DC-Transformer 364W1-15015-SDB1 with output voltage 15.0V bipolar or 30Volt 120 watts and input voltage 16V to 160V

364W1-15015-SDB1

Vin: 16 ... 160 VDC
Vout / Max. Current: ±15.0 VDC / ±4.0 ADC

isolated DC/DC buck converter Typ DC-Transformer 364W2-15015-SDB1 with output voltage 15.0V bipolar or 30Volt 120 watts and input voltage 16V to 160V

364W2-15015-SDB1

Vin: 16 ... 160 VDC
Vout / Max. Current: ±15.0 VDC / ±4.0 ADC

isolated DC/DC buck-boost converter Typ DC-Transformer 365DH-27-SD with output voltage 27.0V, 200 watts and input voltage 22V to 100V

365DH-27-SD

Vin: 22 ... 100 VDC
Vout / Max. Current: 27.0 VDC / 8.0 ADC

isolated DC/DC buck converter Typ DC-Transformer 367-13.8-SD with output voltage 13.8V, 200 watts and input voltage 30V to 80V

367-13.8-SD

Vin: 30 ... 80 VDC
Vout / Max. Current: 13.8 VDC / 14.0 ADC

isolated DC/DC buck-boost converter Typ DC-Transformer 367-28-SD with output voltage 28.0V, 200 watts and input voltage 30V to 80V

367-28-SD

Vin: 30 ... 80 VDC
Vout / Max. Current: 28.0 VDC / 7.5 ADC

isolated DC/DC buck-boost converter Typ DC-Transformer 729-57-SD with output voltage 57.0V, 450 watts and input voltage 12V to 16V

729-57-SD

Vin: 12 ... 16 VDC
Vout / Max. Current: 57.0 VDC / 8.4 ADC

isolated DC/DC buck-boost converter Typ DC-Transformer 755-24-SD with output voltage 24.0V, 450 watts and input voltage 18V to 110V

755-24-SD

Vin: 18 ... 110 VDC
Vout / Max. Current: 24.0 VDC / 18.8 ADC

isolated DC/DC buck-boost converter Typ DC-Transformer 755-48-SD with output voltage 48.0V, 500 watts and input voltage 18V to 110V

755-48-SD

Vin: 18 ... 110 VDC
Vout / Max. Current: 48.0 VDC / 10.5 ADC

isolated DC/DC buck-boost converter Typ DC-Transformer 764-24-SD with output voltage 24.0V, 500 watts and input voltage 40V to 160V

764-24-SD

Vin: 40 ... 160 VDC
Vout / Max. Current: 24.0 VDC / 21.0 ADC

isolated DC/DC buck converter Typ DC-Transformer 767-13.8-SD with output voltage 13.8V, 400 watts and input voltage 30V to 80V

767-13.8-SD

Vin: 30 ... 80 VDC
Vout / Max. Current: 13.8 VDC / 30.0 ADC

isolated DC/DC buck converter Typ DC-Transformer 767UH-13.8-SD with output voltage 13.8V, 400 watts and input voltage 30V to 110V

767UH-13.8-SD

Vin: 30 ... 110 VDC
Vout / Max. Current: 13.8 VDC / 30.0 ADC

isolated DC/DC buck converter Typ DC-Transformer 767UH-24-SD with output voltage 24.0V, 500 watts and input voltage 30V to 110V

767UH-24-SD

Vin: 30 ... 110 VDC
Vout / Max. Current: 24.0 VDC / 21.0 ADC