component
MC34063ADR2G
Public Made by Adomby adom
onsemi DC-DC Converters, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+44@@ -0,0 +1,44 @@+# MC34063ADR2G++**onsemi** · DC-DC Converters · SOIC-8++MC34063ADR2G from onsemi, in a SOIC-8. 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 | Switch Collector | output | Collector of the internal NPN output switch transistor Q1; maximum VCE 40 V; saturation voltage ≤1.3 V (Darlington, ISW=1.0 A) or ≤0.7 V (forced β=20, ISW=1.0 A); maximum switch current 1.5 A; connected to Pin 8 for Darlington configuration. |+| 2 | Switch Emitter | output | Emitter of the internal output switch transistor Q1; maximum switch current 1.5 A; the external sense resistor Rsc (= 0.3/Ipk) is placed between this pin and ground to set the peak current limit. |+| 3 | Timing Capacitor | passive | External oscillator timing capacitor CT connection; CT = 1.0 nF yields approximately 33 kHz free-running frequency; CT is calculated as 4.0×10⁻⁵ × ton for converter design. |+| 4 | GND | power_in | Ground reference for the entire device; all internal signals and the 1.25 V reference are referenced to this pin. |+| 5 | Comparator Inverting Input | input | Inverting input of the feedback comparator; threshold voltage 1.25 V typical (1.21 V min, 1.29 V max over full temperature range); an external resistor divider from the regulated output to this pin sets the output voltage via Vout = 1.25×(1 + R2/R1); input bias current −400 nA maximum. |+| 6 | VCC | power_in | Positive power supply voltage input; operating range 3.0 V to 40 V; maximum supply current 4.0 mA (VCC = 5.0 V to 40 V, CT = 1.0 nF); threshold voltage line regulation 5.0 mV maximum (MC34063A) over 3.0 V to 40 V range. |+| 7 | Ipk Sense | input | Peak switch current limit sense input; the oscillator is forced to immediately discharge CT (ending the ON time) when the voltage at this pin reaches 300 mV typical (250 mV min, 350 mV max); the external sense resistor Rsc = 0.3/Ipk(switch) is placed between this pin and the switch current path. |+| 8 | Driver Collector | output | Collector of the internal driver transistor Q2; maximum driver collector current 100 mA, maximum collector voltage 40 V; connected to Pin 1 (Switch Collector) for the Darlington output switch configuration, or used to drive the base of an external NPN/PNP transistor for output currents exceeding 1.5 A. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | onsemi |+| Package | SOIC-8 |+| Category | Power Management (PMIC) |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `MC34063ADR2G`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)+- 3D model files: `mc34063adr2g-etched.step` / `mc34063adr2g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mc34063adr2g.step` / `mc34063adr2g.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [onsemi datasheet](https://www.onsemi.com/pdf/datasheet/mc34063a-d.pdf) (17 pp, sha256 `f7babf6a0b5180ec`, retrieved 2026-09-21, tier: manufacturer)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-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).++[Datasheet PDF](docs/mc34063adr2g-datasheet.pdf)
page.jsonadded+141@@ -0,0 +1,141 @@+{+ "slug": "mc34063adr2g",+ "version": "0.1.0",+ "type": "component",+ "description": "onsemi DC-DC Converters, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "mc34063adr2g",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "mc34063adr2g.kicad_sym",+ "mc34063adr2g.kicad_mod",+ "mc34063adr2g.glb",+ "mc34063adr2g.step",+ "mc34063adr2g.lbr",+ "docs/hero.png",+ "docs/mc34063adr2g-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "MC34063ADR2G",+ "manufacturer": "onsemi",+ "package": "SOIC-8",+ "pin_count": 8,+ "category": "Power Management (PMIC)",+ "subcategory": "DC-DC Converters",+ "datasheet": "https://www.onsemi.com/pdf/datasheet/mc34063a-d.pdf",+ "parts": {+ "symbol": "mc34063adr2g.kicad_sym",+ "footprint": "mc34063adr2g.kicad_mod",+ "model_3d": "mc34063adr2g-etched.glb",+ "model_3d_plain": "mc34063adr2g.glb",+ "model_3d_step": "mc34063adr2g-etched.step",+ "model_3d_step_plain": "mc34063adr2g.step",+ "lbr": "mc34063adr2g.lbr"+ },+ "distributor_links": {+ "lcsc": "C32078"+ },+ "pins": [+ {+ "number": "1",+ "name": "Switch Collector",+ "type": "output",+ "description": "Collector of the internal NPN output switch transistor Q1; maximum VCE 40 V; saturation voltage ≤1.3 V (Darlington, ISW=1.0 A) or ≤0.7 V (forced β=20, ISW=1.0 A); maximum switch current 1.5 A; connected to Pin 8 for Darlington configuration."+ },+ {+ "number": "2",+ "name": "Switch Emitter",+ "type": "output",+ "description": "Emitter of the internal output switch transistor Q1; maximum switch current 1.5 A; the external sense resistor Rsc (= 0.3/Ipk) is placed between this pin and ground to set the peak current limit."+ },+ {+ "number": "3",+ "name": "Timing Capacitor",+ "type": "passive",+ "description": "External oscillator timing capacitor CT connection; CT = 1.0 nF yields approximately 33 kHz free-running frequency; CT is calculated as 4.0×10⁻⁵ × ton for converter design."+ },+ {+ "number": "4",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference for the entire device; all internal signals and the 1.25 V reference are referenced to this pin."+ },+ {+ "number": "5",+ "name": "Comparator Inverting Input",+ "type": "input",+ "description": "Inverting input of the feedback comparator; threshold voltage 1.25 V typical (1.21 V min, 1.29 V max over full temperature range); an external resistor divider from the regulated output to this pin sets the output voltage via Vout = 1.25×(1 + R2/R1); input bias current −400 nA maximum."+ },+ {+ "number": "6",+ "name": "VCC",+ "type": "power_in",+ "description": "Positive power supply voltage input; operating range 3.0 V to 40 V; maximum supply current 4.0 mA (VCC = 5.0 V to 40 V, CT = 1.0 nF); threshold voltage line regulation 5.0 mV maximum (MC34063A) over 3.0 V to 40 V range."+ },+ {+ "number": "7",+ "name": "Ipk Sense",+ "type": "input",+ "description": "Peak switch current limit sense input; the oscillator is forced to immediately discharge CT (ending the ON time) when the voltage at this pin reaches 300 mV typical (250 mV min, 350 mV max); the external sense resistor Rsc = 0.3/Ipk(switch) is placed between this pin and the switch current path."+ },+ {+ "number": "8",+ "name": "Driver Collector",+ "type": "output",+ "description": "Collector of the internal driver transistor Q2; maximum driver collector current 100 mA, maximum collector voltage 40 V; connected to Pin 1 (Switch Collector) for the Darlington output switch configuration, or used to drive the base of an external NPN/PNP transistor for output currents exceeding 1.5 A."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-4-6",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [],+ "pages_sent": 17,+ "cost_usd": 0.5541,+ "at": "2026-09-21T20:51:00"+ },+ "datasheet": {+ "url": "https://www.onsemi.com/pdf/datasheet/mc34063a-d.pdf",+ "pages": 17,+ "sha256": "f7babf6a0b5180ec",+ "source_tier": "mfr"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 8,+ "described": 8,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}