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LM4040A30IDBZR

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by Ray

Texas Instruments 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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LM4040A30IDBZR

Texas Instruments · Voltage Reference · SOT-23

LM4040A30IDBZR from Texas Instruments, 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 CATHODE passive Cathode (K) of the shunt reference. Shunt current/voltage terminal; regulates to V_KA = 3.0 V above ANODE when biased through a series resistor R_S from V_S. Operating cathode current 45 µA typ to 15 mA max.
2 ANODE passive Anode (A) of the shunt reference. Common pin, normally connected to ground.
3 SUB passive Substrate connection. Attached to the die substrate and must be connected to ANODE or left open.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • LM4040A30IDBZR
  • LM4040A30IDBZT
  • LM4040A30IDBZRIDCKR
  • LM4040A30IDBZRIDCKT

CAD (KiCad official)

  • Symbol: LM4040A30IDBZR
  • 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: Texas Instruments datasheet (53 pp, sha256 ef33a593f8be8c4d, retrieved 2026-08-17, tier: manufacturer)
  • 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