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TL1963A-18DCYR

Public Made by Adom

by adom

Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-4. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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TL1963A-18DCYR

Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-4

TL1963A-18DCYR from Texas Instruments, in a SOT-223-4. 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 IN power_in Input supply pin; the recommended VIN range for the new-chip version is 2.4 V to 20 V, and the device provides reverse-current protection on this pin.
2 GND power_in Ground pin; it is internally tied to the other GND pin (pin 4) and to the exposed thermal pad, which must be soldered to the PCB for rated thermal performance.
3 OUT power_out Regulator output, rated for up to 1.5 A; a capacitor of at least 10 µF with ESR of 3 Ω or less must be connected from OUT to GND for stability, placed as close to the device as possible.
4 GND power_in Ground pin, the second GND terminal of the SOT-223-4 package, which must be connected to the same ground plane as pin 2 and the exposed thermal pad.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-223-4
Category Power Management (PMIC)
Pins 4

CAD (KiCad official)

  • Symbol: TL1963A-18DCYR
  • Footprint: Package_TO_SOT_SMD:SOT-223
  • 3D model: SOT-223-4 (KiCad packages3D, STEP)
  • 3D model files: tl1963a-18dcyr-etched.step / tl1963a-18dcyr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tl1963a-18dcyr.step / tl1963a-18dcyr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (59 pp, sha256 678bca278f2398fb, 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