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LM2675M-3.3
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UMW DC-DC Converters, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+47@@ -0,0 +1,47 @@+# LM2675M-3.3++**UMW** · DC-DC Converters · SOP-8++LM2675M-3.3 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 | Bootstrap capacitor terminal. External capacitor (typ. 10 nF, 50 V) connects between CB and VSW to provide bootstrapped gate drive for the internal high-side power switch. |+| 2 | NC | unconnected | No connection (empty port). Leave floating or tie to GND per board convention. |+| 3 | NC | unconnected | No connection (empty port). Leave floating or tie to GND per board convention. |+| 4 | FB | input | Feedback control input to the internal error amplifier. For the fixed 3.3 V version this pin is tied directly to VOUT; the internal reference regulates FB to the nominal output. Abs-max VFB = -0.3 V to VIN. |+| 5 | ON/OFF | input | TTL-compatible enable input with hysteresis. Logic HIGH (VON >= 1.5 V) enables the regulator; logic LOW (VOFF <= 0.8 V) puts the part in shutdown (ISTB ~ 100 uA). Abs-max -0.3 V to 6 V. |+| 6 | GND | power_in | Power supply ground / device reference. Connect to system ground plane. |+| 7 | VIN | power_in | Positive supply input to the internal power switch and control circuitry. Operating range 7 V to 40 V; absolute-max 45 V. Bypass locally with an input capacitor (typ. 100 uF). |+| 8 | VSW | power_out | Power switch output (SW node). Connects to the external inductor and catch (Schottky) diode of the buck power stage. Abs-max -1 V to VIN; peak switch current limit ~2 A. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | UMW |+| Package | SOP-8 |+| Category | PMIC |+| Pins | 8 |++## Ordering variants++- `LM2675M-3.3M-3.3`++## CAD (KiCad official)++- Symbol: `LM2675M-3.3`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [UMW datasheet](docs/lm2675m-3-3-datasheet.pdf) (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).++[Datasheet PDF](docs/lm2675m-3-3-datasheet.pdf)
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