component

LM3670MFX-1.2

Public Made by Adom

by adom

Texas Instruments DC-DC Converters, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LM3670MFX-1.2

Texas Instruments · DC-DC Converters · SOT-23-5

LM3670MFX-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, 2.5 V to 5.5 V recommended; connect to input filter capacitor.
2 GND power_in Ground reference pin.
3 EN input Digital enable input; pull low to disable and reduce quiescent current to 0.1 µA typical.
4 FB input Feedback analog input for output voltage regulation; connect to output filter capacitor.
5 SW output Switching node connecting to internal PFET switch and NFET synchronous rectifier; rated for 750-mA maximum switch peak current.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23-5
Category Power Management (PMIC)
Pins 5

CAD (KiCad official)

  • Symbol: LM3670MFX-1.2
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: lm3670mfx-1-2-etched.step / lm3670mfx-1-2-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm3670mfx-1-2.step / lm3670mfx-1-2.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (29 pp, sha256 facbd196af963148, retrieved 2026-10-03, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-4-5-20251001 (text), consensus claude-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).

Datasheet PDF