MC33063ADR2G

@@ -0,0 +1,51 @@+# MC33063ADR2G++**onsemi** · DC-DC Converters · SOIC-8++MC33063ADR2G 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 high-current NPN output switch transistor Q1. Rated 40 V, 1.5 A peak. Connects to the switching node of the boost/buck/inverting topology. |+| 2 | Switch Emitter | output | Emitter of the internal output switch transistor Q1. Rated 40 V, 1.5 A peak. Tied to GND for step-up topology or to the switch node for step-down/inverting topologies. |+| 3 | Timing Capacitor | passive | Oscillator timing capacitor pin (CT). External capacitor to GND sets the switching frequency (typ. 24-100 kHz, e.g. 1.0 nF ≈ 33 kHz). |+| 4 | GND | power_in | Device ground / negative power supply return. |+| 5 | Comparator Inverting Input | input | Inverting input of the internal error comparator. Connected to the feedback divider from the regulated output; regulates when the pin reaches the 1.25 V internal reference (Vth typ 1.25 V, 1.225-1.275 V at 25 °C). |+| 6 | VCC | power_in | Positive supply voltage input, 3.0 V to 40 V. Standby supply current typically 3.2 mA (max 4.0 mA). |+| 7 | Ipk Sense | input | Peak switch-current sense input. External sense resistor between VCC and this pin sets the peak switch current limit; the internal comparator trips at Vipk(sense) typ. 300 mV (250-350 mV). |+| 8 | Driver Collector | output | Collector of the internal driver transistor Q2 that drives the base of the output switch Q1. Rated 40 V, 100 mA. Can be tied to VCC for a Darlington configuration or through a resistor to VCC/switch node for a common-emitter configuration. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | onsemi |+| Package | SOIC-8 |+| Category | PMIC |+| Pins | 8 |++## Ordering variants++- `MC33063ADR2GDR2G`+- `MC33063ADR2GDG`+- `MC33063ADR2GPG`+- `MC33063ADR2GP1G`+- `MC33063ADR2GMNTXG`++## CAD (KiCad official)++- Symbol: `MC33063ADR2G`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [onsemi datasheet](https://www.onsemi.com/pdf/datasheet/mc33063a-d.pdf) (15 pp, sha256 `6a2cb6e527edd54e`, retrieved 2026-08-17, tier: manufacturer)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/mc33063adr2g-datasheet.pdf)

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