component
LM3674MFX-1.2
Public Made by Adomby adom
Texas Instruments DC-DC Converters, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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| lm3674mfx-1-2-etched.glb | 28d ago |
| lm3674mfx-1-2-etched.step | 28d ago |
| lm3674mfx-1-2-hero.glb | 28d ago |
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LM3674MFX-1.2
Texas Instruments · DC-DC Converters · SOT-23-5
LM3674MFX-1.2 from Texas Instruments, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VIN | power_in | Power supply input that connects to the input filter capacitor CIN; the recommended input range is 2.7 V to 5.5 V. |
| 2 | GND | power_in | Ground pin; all voltages are specified with respect to this pin. |
| 3 | EN | input | Enable input: the device is in shutdown mode when the voltage is below 0.4 V and enabled above 1 V, and this pin must not be left floating. |
| 4 | FB | input | Feedback analog input that connects to the output filter capacitor COUT for fixed-voltage versions such as the 1.2 V option; the internal resistor dividers are disabled only on the adjustable version, which requires external dividers R1 and R2. |
| 5 | SW | output | Switching node connection to the internal PFET switch and NFET synchronous rectifier. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |
CAD (KiCad official)
- Symbol:
LM3674MFX-1.2 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
lm3674mfx-1-2-etched.step/lm3674mfx-1-2-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm3674mfx-1-2.step/lm3674mfx-1-2.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (27 pp, sha256
6f7dbf11124b325e, retrieved 2026-10-11, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).