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RT9193-33GB
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Richtek Tech Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+48@@ -0,0 +1,48 @@+# RT9193-33GB++**Richtek Tech** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5++RT9193-33GB from Richtek Tech, 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 | VIN | power_in | Power input voltage. Recommended operating range 2.5V to 5.5V (6V absolute max). Bypass with a 1uF X7R capacitor to GND close to the pin. |+| 2 | GND | power_in | Ground return for the regulator. Provides the reference for VIN, VOUT and the internal reference. |+| 3 | EN | input | Chip Enable (active-high, TTL-logic). Input range 0V to 5.5V; VIH >= 1.2V to enable, VIL <= 0.4V for shutdown. This pin is high impedance - add a ~100 kOhm pull-down to GND when the drive signal may float. |+| 4 | BP | passive | Reference noise bypass. May be left floating; for lowest output noise (typ 100 uVrms), connect a 22nF capacitor from BP to GND. |+| 5 | VOUT | power_out | Regulated output voltage (3.3V for the -33 option), 300mA max. Requires only a 1uF X7R output capacitor for stability; low-ESR ceramics acceptable. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Richtek Tech |+| Package | SOT-23-5 |+| Category | PMIC |+| Pins | 5 |++## Ordering variants++- `RT9193-33GBB`+- `RT9193-33GBU5`+- `RT9193-33GBJ5`+- `RT9193-33GBQW`+- `RT9193-33GBF`++## CAD (KiCad official)++- Symbol: `RT9193-33GB`+- 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:** [Richtek Tech datasheet](docs/rt9193-33gb-datasheet.pdf) (14 pp, sha256 `bf255aae29036038`, 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/rt9193-33gb-datasheet.pdf)
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