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LM4040C82IDBZR

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Texas Instruments Voltage Reference, SOT-23. 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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docs lm4040c82idbzr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
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lm4040c82idbzr-etched.fit.json lm4040c82idbzr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
lm4040c82idbzr-etched.glb lm4040c82idbzr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
lm4040c82idbzr-etched.step lm4040c82idbzr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
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README.md Initial commit: component/lm4040c82idbzr · Ray 8d ago

LM4040C82IDBZR

Texas Instruments · Voltage Reference · SOT-23

LM4040C82IDBZR from Texas Instruments, in a SOT-23. 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 CATHODE passive Shunt reference voltage terminal (I/O); maintains 8.192 V (nominal, C-grade ±0.5% at 25 °C) between CATHODE and ANODE for cathode current IZ = 67 µA (min, 25 °C) to 15 mA (max); continuous cathode current limit is 25 mA absolute maximum.
2 ANODE power_in Anode return terminal; general-purpose pin typically connected to ground; serves as the low-side reference node for the shunt regulator; a parasitic Schottky diode exists between pin 3 and this pin in the SOT-23 package.
3 NC unconnected Substrate pin (marked * in datasheet); must be left floating or connected to ANODE (pin 2); in high-EMI environments TI recommends connecting to ANODE to reduce high-frequency switching noise pickup.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23
Category Power Management (PMIC)
Pins 3

CAD (KiCad official)

  • Symbol: LM4040C82IDBZR
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: lm4040c82idbzr-etched.step / lm4040c82idbzr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm4040c82idbzr.step / lm4040c82idbzr.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 2026-09-27, 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 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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