HE9073A33MR

@@ -0,0 +1,45 @@+# HE9073A33MR++**HEERMICR** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23++HE9073A33MR from HEERMICR, in a SOT-23. 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 | GND | power_in | Ground / device negative supply return. All bypass capacitor return currents connect here. |+| 2 | VOUT | power_out | Regulated 3.3 V output. Requires a >=4.7 uF output capacitor (COUT >= 1 uF minimum per electrical characteristics). Delivers up to 500 mA typical, ±1% accuracy, dropout ~100 mV at 100 mA. |+| 3 | VIN | power_in | Unregulated input supply, 2.0 V to 7.0 V (absolute max 9.0 V). Bypass with a >=4.7 uF capacitor close to the pin. In the SOT23-3 package the enable function is internally tied to VIN (device is always enabled when powered). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | HEERMICR |+| Package | SOT-23 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++- `HE9073A33MRMR`+- `HE9073A33MRM5R`+- `HE9073A33MRPR`+- `HE9073A33MRD4R`++## CAD (KiCad official)++- Symbol: `HE9073A33MR`+- Footprint: `Package_TO_SOT_SMD:SOT-23`+- 3D model: SOT-23 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [HEERMICR datasheet](docs/he9073a33mr-datasheet.pdf) (12 pp, sha256 `27a01576a32d0f6f`, retrieved 2026-08-17, tier: lcsc)+- **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/he9073a33mr-datasheet.pdf)

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