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Contents

README

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MC34063EBD-TR

STMicroelectronics · DC-DC Converters · SOIC-8

MC34063EBD-TR from STMicroelectronics, 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 SWC output Collector output terminal of the internal Darlington switching transistor, maximum voltage 40V, maximum switching current 1.5A.
2 SWE output Emitter output terminal of the internal Darlington switching transistor, maximum voltage 40V.
3 TC passive External timing capacitor connection for oscillator frequency control.
4 GND power_in Ground reference and common return path.
5 CII input Comparator inverting input with operating voltage range -0.3V to 40V.
6 VCC power_in Positive power supply input with operating voltage range 3V to 40V.
7 IPK input Current limit sense input with threshold voltage approximately 300mV.
8 DRC output Output driver collector terminal, maximum voltage 40V, maximum driver collector current 100mA.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package SOIC-8
Category Power Management (PMIC)
Pins 8

CAD (KiCad official)

  • Symbol: MC34063EBD-TR
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: mc34063ebd-tr-etched.step / mc34063ebd-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mc34063ebd-tr.step / mc34063ebd-tr.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (23 pp, sha256 90208f64b7a5ca67, retrieved 2026-09-24, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-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