MagI³C-FDSM Fixed Step Down Regulator Module
EXTENDEDCharacteristics
- Simplest design (no power supply knowledge required)
- Leaded through-hole package for easy manufacturing and prototyping
- Partly integrated CIN / COUT
- L78x series linear regulator replacement (no heatsink required)
- Low conducted and radiated EMI (compliant to EN55022 (CISPR-22) class B / EN55032 (CISPR-32) class B)
- Pin Positions
- Type B - Pin position at the back as seen from the marking
- Type F - Pin position at the front as seen from the marking
- For details see datasheet PIN out section and dimensions!
Applications
- Point-of-load DC-DC applications of 9V, 12V, 15V, 18V, 24V, 36V and 48V industrial bus
- Applications for logistics and automation
- Linear regulator replacement
- Interface and microcontroller supply
- Test and measurement technology, medical technology
- Supply of interfaces
Application Notes
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Reset allOrder Code | Datasheet | Simulation | Downloads | Status | VIN(V) | VOUT(V) | IOUT(A) | L(mm) | W(mm) | H(mm) | Pin Position | Evaluation Kit | SamplesAvailability & Sample | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
173950336 | SPEC4.75 - 36, 3.3, 0.5 A | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Input Voltage 4.75 - 36 | Output Voltage 3.3 | Output Current0.5 A | Length11.6 mm | Width7.55 mm | Height10.16 mm | Pin PositionType F | Evaluation Kit – | –Check availability | ||
173950378 | SPEC6 - 28, 3.3, 0.5 A | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Input Voltage 6 - 28 | Output Voltage 3.3 | Output Current0.5 A | Length11.6 mm | Width8.5 mm | Height10.5 mm | Pin PositionType F | Evaluation Kit – | –Check availability | ||
173010335 | SPEC6 - 36, 3.3, 1 A | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Input Voltage 6 - 36 | Output Voltage 3.3 | Output Current1 A | Length11.6 mm | Width8 mm | Height10.4 mm | Pin PositionType F | Evaluation Kit – | –Check availability | ||
173020336 | SPEC6 - 36, 3.3, 2 A | Availability – | Status Newi| Product is new in our portfolio and production is active. Expected lifetime: >10 years. | Input Voltage 6 - 36 | Output Voltage 3.3 | Output Current2 A | Length11.5 mm | Width9 mm | Height17.5 mm | Pin PositionType B | Evaluation Kit – | –Check availability | ||
173950536 | SPEC6.5 - 36, 5, 0.5 A | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Input Voltage 6.5 - 36 | Output Voltage 5 | Output Current0.5 A | Length11.6 mm | Width7.55 mm | Height10.16 mm | Pin PositionType F | Evaluation Kit – | –Check availability | ||
173950578 | SPEC7 - 28, 5, 0.5 A | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Input Voltage 7 - 28 | Output Voltage 5 | Output Current0.5 A | Length11.6 mm | Width8.5 mm | Height10.5 mm | Pin PositionType F | Evaluation Kit – | –Check availability | ||
173010378 | SPEC7 - 28, 3.3, 1 A | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Input Voltage 7 - 28 | Output Voltage 3.3 | Output Current1 A | Length11.6 mm | Width8.5 mm | Height10.5 mm | Pin PositionType F | Evaluation Kit – | –Check availability | ||
173010342 | SPEC7 - 42, 3.3, 1 A | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Input Voltage 7 - 42 | Output Voltage 3.3 | Output Current1 A | Length11.6 mm | Width8.5 mm | Height10.5 mm | Pin PositionType F | Evaluation Kit – | –Check availability | ||
173010578 | SPEC8 - 28, 5, 1 A | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Input Voltage 8 - 28 | Output Voltage 5 | Output Current1 A | Length11.6 mm | Width8.5 mm | Height10.5 mm | Pin PositionType F | Evaluation Kit – | –Check availability | ||
173010542 | SPEC8 - 42, 5, 1 A | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Input Voltage 8 - 42 | Output Voltage 5 | Output Current1 A | Length11.6 mm | Width8.5 mm | Height10.5 mm | Pin PositionType F | Evaluation Kit – | –Check availability | ||
173010535 | SPEC8 - 36, 5, 1 A | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Input Voltage 8 - 36 | Output Voltage 5 | Output Current1 A | Length11.6 mm | Width8 mm | Height10.4 mm | Pin PositionType F | Evaluation Kit | –Check availability | ||
173020536 | SPEC8 - 36, 5, 2 A | Availability – | Status Newi| Product is new in our portfolio and production is active. Expected lifetime: >10 years. | Input Voltage 8 - 36 | Output Voltage 5 | Output Current2 A | Length11.5 mm | Width9 mm | Height17.5 mm | Pin PositionType B | Evaluation Kit – | –Check availability | ||
173950375 | SPEC9 - 74.5, 3.3, 0.5 A | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Input Voltage 9 - 74.5 | Output Voltage 3.3 | Output Current0.5 A | Length11.5 mm | Width9 mm | Height17.5 mm | Pin PositionType B | Evaluation Kit – | –Check availability | ||
173950575 | SPEC9 - 74.5, 5, 0.5 A | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Input Voltage 9 - 74.5 | Output Voltage 5 | Output Current0.5 A | Length11.5 mm | Width9 mm | Height17.5 mm | Pin PositionType B | Evaluation Kit – | –Check availability | ||
173951236 | SPEC15 - 36, 12, 0.5 A | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Input Voltage 15 - 36 | Output Voltage 12 | Output Current0.5 A | Length11.6 mm | Width7.55 mm | Height10.16 mm | Pin PositionType F | Evaluation Kit – | –Check availability | ||
173011235 | SPEC16 - 36, 12, 1 A | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Input Voltage 16 - 36 | Output Voltage 12 | Output Current1 A | Length11.6 mm | Width8 mm | Height10.4 mm | Pin PositionType F | Evaluation Kit – | –Check availability | ||
173021236 | SPEC16 - 36, 12, 2 A | Availability – | Status Newi| Product is new in our portfolio and production is active. Expected lifetime: >10 years. | Input Voltage 16 - 36 | Output Voltage 12 | Output Current2 A | Length11.5 mm | Width9 mm | Height17.5 mm | Pin PositionType B | Evaluation Kit – | –Check availability | ||
173951275 | SPEC18 - 74.5, 12, 0.5 A | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Input Voltage 18 - 74.5 | Output Voltage 12 | Output Current0.5 A | Length11.5 mm | Width9 mm | Height17.5 mm | Pin PositionType B | Evaluation Kit – | –Check availability | ||
173951536 | SPEC19 - 36, 15, 0.5 A | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Input Voltage 19 - 36 | Output Voltage 15 | Output Current0.5 A | Length11.6 mm | Width7.55 mm | Height10.16 mm | Pin PositionType F | Evaluation Kit – | –Check availability | ||
173011535 | SPEC20 - 36, 15, 1 A | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Input Voltage 20 - 36 | Output Voltage 15 | Output Current1 A | Length11.6 mm | Width8 mm | Height10.4 mm | Pin PositionType F | Evaluation Kit – | –Check availability |
Availability Forecast
WE item number: –
VPE–
Lead time– weeks
| Expected Availability | Opening inventory | Quantity |
|---|---|---|
| Current Availability | – | – |
Does it just not fit? Please contact us.Simply contact our service team for special orders and bulk quantities.
Service & Support
Do you have questions or suggestions on the topics of design-in support, PCB layout review, EMC filters or thermal design? We will be happy to help you! With just a few details, we can answer your enquiry.

Design-In Support
- Product related & application specific support by hotline
- Troubleshooting and individual design solutions

Layout Review Support
- Individual review of customer layouts
- Reference layout given in every datasheet

EMC Filter Design Support
- Solution for conducted & radiated emissions
- Tested filter configurations for EN55032 / CISPR-32 class B compliance
- Real EMI behavior shown as well as gain and phase response of EMI filter shown on REDEXPERT

Thermal Design Support
- Temperature distribution
- Total power handling
- Thermal behaviour of power modulesas well as interactive power loss chart on shown on REDEXPERT
Videos
Würth Elektronik Webinar: "Negative output voltage with an inverting buck boost"
Videos
WE meet @ Digital Days 2021: Improving the EMI performance of isolated power modules
Videos
Würth Elektronik Webinar: MicroModule design-in made easy - Tips and tricks

