component
TL1963A-18DCYR
Public Made by Adomby 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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tl1963a-18dcyr.step/tl1963a-18dcyr.glbare 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, primaryclaude-haiku-5-5(text), consensusclaude-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).
# 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](https://www.ti.com/cn/lit/gpn/tl1963a) (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](docs/tl1963a-18dcyr-datasheet.pdf)