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TL1963A-33DCYR

Public Made by Adom

by adom

Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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docs tl1963a-33dcyr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
viewers tl1963a-33dcyr: viewers · Ray 1mo ago
package.json Publish 0.1.0 · Ray 1mo ago
page.json tl1963a-33dcyr: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray 23h ago
README.md tl1963a-33dcyr: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 16d ago
tl1963a-33dcyr-etched.fit.json tl1963a-33dcyr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
tl1963a-33dcyr-etched.glb tl1963a-33dcyr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
tl1963a-33dcyr-etched.step tl1963a-33dcyr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
tl1963a-33dcyr.glb Publish 0.1.0 · Ray 1mo ago
tl1963a-33dcyr.kicad_mod Publish 0.1.0 · Ray 1mo ago
tl1963a-33dcyr.kicad_sym Publish 0.1.0 · Ray 1mo ago
tl1963a-33dcyr.lbr Publish 0.1.0 · Ray 1mo ago
tl1963a-33dcyr.step Publish 0.1.0 · Ray 1mo ago

TL1963A-33DCYR

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

TL1963A-33DCYR from Texas Instruments, in a SOT-223. 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 IN power_in Regulator input supply. Accepts up to 20 V and up to VOUT+VDO minimum. A 1-uF to 10-uF bypass capacitor is required (especially when placed more than ~6 inches from the input filter cap). Reverse-battery tolerant.
2 GND power_in Ground reference for the regulator. The DCY package brings GND out on pin 2 as well as on the tab (pin 4).
3 OUT power_out Regulated 3.3-V output, 1.5-A capable. Requires a minimum 10-uF ceramic output capacitor for stability; larger caps recommended for large transient loads.
4 GND (Tab) power_in SOT-223 thermal tab, electrically connected to GND. Must be soldered to a PCB copper pour for rated thermal performance.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-223
Category PMIC
Pins 4

Ordering variants

Same part, different packaging or reel option.

  • TL1963A-33DCYR
  • TL1963A-33DCYRDCQ
  • TL1963A-33DCYRDCQR
  • TL1963A-33DCYRKTT
  • TL1963A-33DCYRKTTR
  • TL1963A-33DCYRKTTT

CAD (KiCad official)

  • Symbol: TL1963A-33DCYR
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223 (KiCad packages3D, STEP)
  • 3D model files: tl1963a-33dcyr-etched.step / tl1963a-33dcyr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tl1963a-33dcyr.step / tl1963a-33dcyr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (39 pp, sha256 4d78d60ab065db02, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF