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Contents

README

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TL4050A50IDCKR

Texas Instruments · Voltage Reference · SC-70-5

TL4050A50IDCKR from Texas Instruments, in a SC-70-5. 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 ANODE passive Anode (reference return) of the two-terminal shunt reference, connected to the low side of the circuit.
2 * passive Marked with an asterisk; a parasitic Schottky diode exists between this pin and the anode pin, so it should be left floating or connected to the anode (pin 1), and TI recommends connecting it to the anode in high-EMI or high-frequency switching-noise applications.
3 CATHODE passive Cathode of the shunt reference, which carries the regulated 5 V output (VZ) and operates at cathode current IZ up to 15 mA.
4 NC unconnected No internal connection.
5 NC unconnected No internal connection.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SC-70-5
Category Power Management (PMIC)
Pins 5

CAD (KiCad official)

  • Symbol: TL4050A50IDCKR
  • Footprint: Package_TO_SOT_SMD:SOT-353_SC-70-5
  • 3D model: SC-70-5 (KiCad packages3D, STEP)
  • 3D model files: tl4050a50idckr-etched.step / tl4050a50idckr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tl4050a50idckr.step / tl4050a50idckr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (41 pp, sha256 9518f91a68f71d48, retrieved 2026-10-06, 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-4-5-20251001 (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