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Contents

README

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TL4050C50QDBZR

Texas Instruments · Voltage Reference · SOT-23-3

TL4050C50QDBZR from Texas Instruments, in a SOT-23-3. 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 terminal of the two-terminal fixed 5V (grade C) parallel voltage reference; sets the regulated reverse breakdown voltage VZ and carries the cathode/bias current IZ (IZ,min to 15mA per Recommended Operating Conditions).
2 ANODE passive Anode terminal of the shunt reference; return path for the cathode current, and the terminal to which pin 3 should be tied (a parasitic Schottky diode exists between pins 2 and 3 in the SOT-23 package).
3 NC/ANODE (float or tie to pin 2) passive Must be left floating or connected to pin 2 (anode) because a parasitic Schottky diode is connected between pins 2 and 3 in the SOT-23 package; in applications with high electromagnetic interference or significant high-frequency switching noise, TI recommends connecting this pin to the anode.

Key specifications

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

CAD (KiCad official)

  • Symbol: TL4050C50QDBZR
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)
  • 3D model files: tl4050c50qdbzr-etched.step / tl4050c50qdbzr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tl4050c50qdbzr.step / tl4050c50qdbzr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (41 pp, sha256 4480bd2722b78361, retrieved 2026-09-23, 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-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