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LM4040AIM3-10

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by Ray

HGSEMI Voltage Reference, SOT-23. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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LM4040AIM3-10

HGSEMI · Voltage Reference · SOT-23

LM4040AIM3-10 from HGSEMI, in a SOT-23. 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 V+ passive Cathode (positive terminal) of the shunt reference. Connect through a series resistor Rs from Vs; the pin regulates to 10.000V above the anode (pin 2). Reverse current range 100µA to 15mA.
2 V- passive Anode (negative terminal / ground reference) of the shunt reference. Typically tied to circuit ground.
3 NC unconnected No internal connection on the fixed LM4040 variant. Datasheet states 'Pin 3 must float or be connected to pin 2.'

Key specifications

Parameter Value
Manufacturer HGSEMI
Package SOT-23
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • LM4040AIM3-10/TR
  • LM4040AIM3-10BIM3-10/TR
  • LM4040AIM3-10CIM3-10/TR
  • LM4040AIM3-10DIM3-10/TR

CAD (KiCad official)

  • Symbol: LM4040AIM3-10
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: HGSEMI datasheet (26 pp, sha256 769266b4b58a05fd, retrieved 2026-08-17, tier: lcsc)
  • 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