component
TL1963A-33DCQR
Public Made by Adomby adom
Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTL1963A-33DCQR
Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-6
TL1963A-33DCQR from Texas Instruments, in a SOT-223-6. 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 | SHDN | input | High-active device enable pin with input voltage thresholds VIH = 2V to 20V (enable) and VIL = 0V to 0.25V (disable); if unused, must be connected to VIN. |
| 2 | IN | power_in | Input power supply pin; rated for 2.4V to 20V for new chips or VOUT + VDO to 20V for old chips; includes reverse polarity protection (old chips only) and reverse current protection. |
| 3 | GND | power_in | Ground connection providing return path for all circuit currents. |
| 4 | OUT | power_out | Regulated output pin with maximum current rating of 1.5A; requires ceramic capacitor ≥10μF with ESR ≤3Ω connected between OUT and ground for stability and transient response. |
| 5 | SENSE | input | Feedback sensing pin for fixed voltage version connected to error amplifier input; has bias current ISENSE; for old chips can be pulled below ground level in dual power supply systems. |
| 6 | GND | power_in | Ground connection; exposed thermal pad on this pin must be soldered to PCB for rated thermal performance. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-223-6 |
| Category | Power Management (PMIC) |
| Pins | 6 |
CAD (KiCad official)
- Symbol:
TL1963A-33DCQR - Footprint:
Package_TO_SOT_SMD:SOT-223-6 - 3D model: SOT-223-6 (KiCad packages3D, STEP)
- 3D model files:
tl1963a-33dcqr-etched.step/tl1963a-33dcqr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tl1963a-33dcqr.step/tl1963a-33dcqr.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 2026-10-01, 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-4-5-20251001(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).