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wr0332-33a50r
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Wayon Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.
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README.mdadded+46@@ -0,0 +1,46 @@+# WR0332-33A50R++**Wayon** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5++WR0332-33A50R from Wayon, in a SOT-23-5. 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 | IN | power_in | Input voltage supply, 2.2 V to 5.5 V operating range (absolute max 6.0 V). Bypass with a 1 µF ceramic capacitor to GND placed as close to the IN and GND pins as possible. |+| 2 | GND | power_in | Common ground reference for the device. Return path for the input and output bypass capacitors. |+| 3 | EN | input | Enable input, active high. VENH ≥ 1.2 V enables regulation; VENL ≤ 0.4 V shuts the device down. Contains an internal ~0.1 µA (100 nA typ.) pull-up current source; tie to IN if the enable function is not needed. Absolute max 6.0 V. |+| 4 | NC | unconnected | No internal connection. May be left floating; do not use as a routing tie point. |+| 5 | OUT | power_out | Regulated output voltage (3.3 V nominal for the -33A50R variant), up to 300 mA. Requires a low-ESR 1 µF ceramic capacitor to GND for stability, placed close to the OUT and GND pins. An internal ~150 Ω pull-down discharges VOUT when the regulator is shut down. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Wayon |+| Package | SOT-23-5 |+| Category | PMIC |+| Pins | 5 |++## Ordering variants++- `WR0332-33A50R`+- `WR0332-33A50RA30R`+- `WR0332-33A50RFF4R`++## CAD (KiCad official)++- Symbol: `WR0332-33A50R`+- Footprint: `Package_TO_SOT_SMD:SOT-23-5`+- 3D model: SOT-23-5 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Wayon datasheet](docs/wr0332-33a50r-datasheet.pdf) (None pp, sha256 `115200abc938e7fe`, 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/wr0332-33a50r-datasheet.pdf)
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