component
MC33063AD
Public Made by Adomby adom
Texas Instruments DC-DC Converters, SOIC-8. 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
markdownMC33063AD
Texas Instruments · DC-DC Converters · SOIC-8
MC33063AD from Texas Instruments, in a SOIC-8. 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 | Switch Collector | output | High-current internal switch collector output; maximum voltage 40 V. |
| 2 | Switch Emitter | output | High-current internal switch emitter output; saturation voltage 0.7 V typical at 1 A. |
| 3 | Timing Capacitor | passive | External timing capacitor connection to set oscillator frequency; 1 nF typical yields 33 kHz. |
| 4 | GND | power_in | Ground reference. |
| 5 | Comparator Inverting Input | input | Feedback input for voltage regulation; attach to resistor divider network to create feedback loop. |
| 6 | VCC | power_in | Logic supply voltage input, 3 V to 40 V; tie to VIN. |
| 7 | IPK | input | Current-limit sense input; threshold voltage 250 to 350 mV. |
| 8 | Driver Collector | output | Driver output stage collector connection; used to drive external Darlington pair base. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
MC33063AD - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
mc33063ad-etched.step/mc33063ad-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mc33063ad.step/mc33063ad.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (32 pp, sha256
bad86a3b68c35766, retrieved 2026-09-27, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).