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TL4050C20QDBZRQ1

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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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TL4050C20QDBZRQ1

Texas Instruments · Voltage Reference · SOT-23

TL4050C20QDBZRQ1 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 Cathode of the shunt reference; the cathode current IZ must stay between IZ,min (41 µA min, 60 µA typ, 65 µA max over full temperature range) and the 15 mA recommended maximum, with 20 mA as the absolute continuous maximum.
2 ANODE passive Anode of the shunt reference; the SOT-23-3 pin 3 must be left floating or connected to this pin, because a parasitic Schottky diode is connected between pins 2 and 3.
3 NC (float or tie to pin 2) unconnected On the SOT-23-3 package this pin must be left floating or connected to pin 2; in high-EMI or high-frequency switching environments TI recommends connecting it to the anode.

Key specifications

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

CAD (KiCad official)

  • Symbol: TL4050C20QDBZRQ1
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: tl4050c20qdbzrq1-etched.step / tl4050c20qdbzrq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tl4050c20qdbzrq1.step / tl4050c20qdbzrq1.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (28 pp, sha256 f7e77a76482b9b0c, retrieved 2026-10-08, 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-5-5 (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