MC33063ADR

@@ -0,0 +1,52 @@+# MC33063ADR++**Texas Instruments** · DC-DC Converters · SOIC-8++MC33063ADR from Texas Instruments, 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 | High-current internal output switch collector. Rated for up to 1.5 A switch current and 40 V collector-emitter voltage; typically tied to the boost inductor or buck catch node. |+| 2 | Switch Emitter | output | High-current internal output switch emitter. Handles up to 1.5 A of switch current; connect to the switching node or ground depending on topology (boost/buck/inverting). |+| 3 | Timing Capacitor | passive | External timing capacitor (CT) node that sets the oscillator switching frequency (up to 100 kHz). Charge current ~35 uA typ, discharge ~220 uA typ. |+| 4 | GND | power_in | Device ground reference. On the DRJ (QFN) package the exposed thermal pad is electrically bonded internally to this pin. |+| 5 | Comparator Inverting Input | input | Inverting input of the internal error comparator, referenced to the internal 1.25 V regulator (Vth = 1.225-1.275 V). Connect to a resistor-divider feedback network from the regulator output. Input range -0.3 V to 40 V; input bias current up to -400 nA. |+| 6 | VCC | power_in | Logic supply voltage input. Operating range 3 V to 40 V (abs max 40 V). Typically tied to VIN. Supply current <= 4 mA. |+| 7 | Ipk Sense | input | Current-limit sense input. An external sense resistor from VCC to this pin sets the peak switch current limit; internal threshold Vipk = 300 mV typ (250-350 mV). |+| 8 | Driver Collector | output | Darlington pair driver transistor collector. Can be tied to pin 1 for Darlington operation, or biased separately through a resistor to VCC for non-Darlington operation (lower Vce(sat) ~0.45 V). Ic(driver) abs max 100 mA at 40 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-8 |+| Category | PMIC |+| Pins | 8 |++## Ordering variants++- `MC33063ADRDR`+- `MC33063ADRD`+- `MC33063ADRDRJR`+- `MC33063ADRDRJ`+- `MC33063ADRP`+- `MC33063ADRPE4`++## CAD (KiCad official)++- Symbol: `MC33063ADR`+- 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:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/mc33063a.pdf) (32 pp, sha256 `bad86a3b68c35766`, 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/mc33063adr-datasheet.pdf)

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