component
LM2675M-12
Public Unreviewedby Ray
UMW DC-DC Converters, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownLM2675M-12
UMW · DC-DC Converters · SOP-8
LM2675M-12 from UMW, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | CB | passive | Boost capacitor terminal. Connect a bootstrap capacitor (typ. 10 nF / 103, 50 V) between CB and VSW to drive the high-side switch gate above VIN. |
| 2 | NC | unconnected | No connection (empty port). Leave floating or tie to a nearby unused net. |
| 3 | NC | unconnected | No connection (empty port). Leave floating or tie to a nearby unused net. |
| 4 | FB | input | Feedback control terminal. Senses the regulated output voltage into the internal error amplifier; for the fixed 12 V variant tie directly to VOUT. Absolute range -0.3 V to VIN. |
| 5 | ON/OFF | input | Enable input with hysteresis. High = ON (VIH >= 1.5 V), Low = OFF (VIL <= 0.8 V). TTL compatible; leave open or tie high for always-on operation. Absolute range -0.3 V to 6 V. |
| 6 | GND | power_in | Power supply ground / device return. Common reference for VIN, feedback, and enable circuits. |
| 7 | VIN | power_in | Positive supply input. 7 V to 40 V operating range (45 V absolute max). Bypass with an input capacitor (typ. 100 uF electrolytic plus ceramic) close to the pin. |
| 8 | VSW | output | Switch (SW) output of the internal high-side power MOSFET. Connects to the external inductor and catch diode (Schottky) that form the buck power stage. Absolute range -1 V to VIN. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | SOP-8 |
| Category | PMIC |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
LM2675M-12
CAD (KiCad official)
- Symbol:
LM2675M-12 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
lm2675m-12.step |
122 KB | You want the bare part, or you mark your own boards. |
lm2675m-12-etched.step |
1.8 MB | You want the part with LM2675M-12 already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 448 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UMW datasheet (14 pp, sha256
596039c1658a306f, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).