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LM3671MFX-3.3
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Texas Instruments LM3671MFX 3 3 NOPB DC-DC Converters, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+49@@ -0,0 +1,49 @@+# LM3671MFX-3.3++**Texas Instruments LM3671MFX 3 3 NOPB** · DC-DC Converters · SOT-23-5++LM3671MFX-3.3 from Texas Instruments LM3671MFX 3 3 NOPB, in a SOT-23-5. 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 | VIN | power_in | Power supply input, 2.7 V to 5.5 V. Connect directly to the input filter (ceramic) capacitor. Absolute maximum 6 V to GND. |+| 2 | GND | power_in | Device ground reference. Return path for input capacitor and internal NFET synchronous rectifier. |+| 3 | EN | input | Enable input. Device is in shutdown mode when V(EN) < 0.4 V and enabled when V(EN) > 1 V. Do not leave floating; absolute maximum GND-0.2 V to VIN+0.2 V. |+| 4 | FB | input | Feedback analog input. For the fixed 3.3 V version, connect directly to the output filter capacitor at VOUT; the internal resistor divider sets the regulation point (internal dividers are disabled on the adjustable version). |+| 5 | SW | output | Switching node to the internal PFET high-side switch and NFET synchronous rectifier. Connect through the 2.2 uH power inductor to VOUT. Handles up to 600 mA load current. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments LM3671MFX 3 3 NOPB |+| Package | SOT-23-5 |+| Category | PMIC |+| Pins | 5 |++## Ordering variants++- `LM3671MFX-3.3MF`+- `LM3671MFX-3.3MFX`+- `LM3671MFX-3.3TL`+- `LM3671MFX-3.3TLX`+- `LM3671MFX-3.3SD`+- `LM3671MFX-3.3SDX`++## CAD (KiCad official)++- Symbol: `LM3671MFX-3.3`+- Footprint: `Package_TO_SOT_SMD:SOT-23-5`+- 3D model: SOT-23-5 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments LM3671MFX 3 3 NOPB datasheet](https://www.ti.com/lit/ds/symlink/lm3671mfx-3.3.pdf) (38 pp, sha256 `c241e858da248679`, retrieved 2026-08-17, tier: manufacturer)+- **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/lm3671mfx-3-3-datasheet.pdf)
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