

Overview
The LM3478MM is a DC DC Converter made by Texas Instruments in a MSOP-8 package with 8 pins. -40℃~+125℃@(TJ) 1 1MHz 2.97V~40V Boost Boost、SEPIC、Flyback External No MSOP-8 DC-DC Converters ROHS.
PCBKit's library has its KiCad symbol (Regulator_Controller:LM3478MM, from KiCad's library) and its footprint (Package_SO:MSOP-8_3x3mm_P0.65mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3194619). 2 open-source boards in 2 repositories on GitHub use it.
Symbol
Footprint
Order codes
1- LM3478MMLCSC C3194619
Pinout
8| Pin | Name | Type |
|---|---|---|
| 1 | I_{SEN} | Input |
| 2 | COMP | Input |
| 3 | FB | Input |
| 4 | AGND | Power in |
| 5 | PGND | Power in |
| 6 | DR | Output |
| 7 | FA/SD | Input |
| 8 | V_{IN} | Power in |
Open-source boards using it
All 2- 2 layers180 × 50 mm

- 2 layers62 × 30 mm

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<iframe src="https://pcbkit.io/embed/parts/ti/LM3478MM" title="LM3478MM in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/ti/LM3478MM.jpg" alt="LM3478MM" width="1200" height="900">[](https://pcbkit.io/parts/ti/LM3478MM)Questions
Is there a KiCad symbol and footprint for the LM3478MM?
Yes. The symbol is Regulator_Controller:LM3478MM and the footprint Package_SO:MSOP-8_3x3mm_P0.65mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the LM3478MM?
MSOP-8, with 8 pins. Its footprint is drawn on this page.
Where is the LM3478MM datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the LM3478MM?
JLCPCB lists it as part C3194619, with 0 in stock; the sellers' links on this page open their listings.
What can replace the LM3478MM?
Parts like it in the library: the PAM2401SCADJ by Diodes Incorporated, the MCP16311-E/MS by Microchip Technology, the TPS62160DGKR by Texas Instruments and the LM3488MM/NOPB by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the LM3478MM?
2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
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