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REF3040AIDBZR

Public Made by Adom

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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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REF3040AIDBZR

Texas Instruments · Voltage Reference · SOT-23

REF3040AIDBZR 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 IN power_in Supply input pin. Operates from VREF+0.001V (typ, IL=0) up to 5.5V; recommended VIN >= VREF + 50mV for regulation. Quiescent current is 50uA max.
2 OUT output Voltage reference output. Provides 4.096V +/-0.2% (initial accuracy) with up to 25mA source current. Does not require an external load capacitor; short-circuit current ~45mA.
3 GND power_in Ground reference for the device.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • REF3040AIDBZT
  • REF3040AIDBZR

CAD (KiCad official)

  • Symbol: REF3040AIDBZR
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: ref3040aidbzr-etched.step / ref3040aidbzr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ref3040aidbzr.step / ref3040aidbzr.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
ref3040aidbzr.step 59 KB You want the bare part, or you mark your own boards.
ref3040aidbzr-etched.step 2.2 MB You want the part with REF3040AIDBZR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 549 faces against 69 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: Texas Instruments datasheet (17 pp, sha256 a55bad697652eb9b, 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