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Contents

README

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LM4040C41IDCKR

Texas Instruments · Voltage Reference · SC-70-5

LM4040C41IDCKR from Texas Instruments, in a SC-70-5. 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 ANODE power_in Anode (ground return) terminal; typically connected to circuit ground, provides return path for regulated current with maximum continuous rating of 25mA per section 6.1.
2 * passive EMI bypass or strap pin; must be left floating or connected to anode; TI recommends connection to anode in high-EMI environments per footnote (1).
3 CATHODE output Cathode terminal providing regulated 4.096V ±0.5% reference output over -40°C to 85°C temperature range with maximum operating current of 15mA.
4 NC unconnected No internal connection within SC-70 5-pin package.
5 NC unconnected No internal connection within SC-70 5-pin package.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SC-70-5
Category Power Management (PMIC)
Pins 5

CAD (KiCad official)

  • Symbol: LM4040C41IDCKR
  • Footprint: Package_TO_SOT_SMD:SOT-353_SC-70-5
  • 3D model: SC-70-5 (KiCad packages3D, STEP)
  • 3D model files: lm4040c41idckr-etched.step / lm4040c41idckr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm4040c41idckr.step / lm4040c41idckr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (62 pp, sha256 68faec55d71e5cd5, retrieved 2026-10-07, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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