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LM2671N-12

Public Made by Adom

by adom

Texas Instruments DC-DC Converters, PDIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
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LM2671N-12

Texas Instruments · DC-DC Converters · PDIP-8

LM2671N-12 from Texas Instruments, in a PDIP-8. 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 CB input Bootstrap capacitor connection for the high-side driver; connect a high-quality 100-nF capacitor from CB to the VSW pin.
2 SS input Soft-start pin; connect a capacitor from this pin to GND to control the output voltage ramp, or leave it floating if the feature is not wanted.
3 SYNC input Allows control of the switching clock frequency; if left open-circuited the regulator switches at the internal oscillator frequency, typically 260 kHz.
4 FB input Feedback sense input; for the fixed-output LM2671N-12 this pin is connected directly to the output capacitor (the divider midpoint connection applies only to the ADJ version).
5 ON/OFF input Enable input to the regulator: high = ON and low = OFF; pull this pin high or leave it floating to enable the regulator.
6 GND power_in Power ground pin; connect to system ground, and keep the ground path to CIN as short as possible.
7 VIN power_in Supply input to the collector of the high-side FET; connect to the power supply and input bypass capacitor CIN, keeping the VIN-to-CIN-to-GND path as short as possible. The datasheet gives a recommended supply range of 6.5 V to 40 V.
8 VSW output Source of the internal high-side FET and the switching node; attach to the inductor and the cathode of the external diode.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package PDIP-8
Category Power Management (PMIC)
Pins 8

CAD (KiCad official)

  • Symbol: LM2671N-12
  • Footprint: Package_DIP:DIP-8_W7.62mm
  • 3D model: PDIP-8 (KiCad packages3D, STEP)
  • 3D model files: lm2671n-12-etched.step / lm2671n-12-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2671n-12.step / lm2671n-12.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (40 pp, sha256 3002d970b17265d0, retrieved 2026-10-11, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (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