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RT9193-18GB
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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 @@+# RT9193-18GB++**Richtek Tech** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5++RT9193-18GB 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. Operating range 2.5V to 5.5V (absolute max 6V). Requires a 1uF X7R input capacitor to GND for stability. |+| 2 | GND | power_in | Device ground reference. Common return for VIN, VOUT, EN and BP. |+| 3 | EN | input | Chip Enable, active high (TTL logic). VIH >= 1.2V enables the regulator; VIL <= 0.4V shuts it down. Input is high impedance (bias current ~0/100nA max), so a ~100kOhm pull-down to GND is recommended when the control signal is floating. Input range 0V to 5.5V. |+| 4 | BP | passive | Reference noise bypass pin. May be left floating; for lowest output noise (~100 uVrms, 10Hz-100kHz) connect a 22nF ceramic capacitor between BP and GND. |+| 5 | VOUT | power_out | Regulated output voltage, 1.8V nominal (-18 suffix), 300mA max load. Requires a 1uF X7R output capacitor to GND for stability. Current-limited (typ 400mA) and thermally protected (Tsd ~165 degC). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Richtek Tech |+| Package | SOT-23-5 |+| Category | PMIC |+| Pins | 5 |++## Ordering variants++- `RT9193-18GBB`+- `RT9193-18GBU5`+- `RT9193-18GBJ5`+- `RT9193-18GBQW`+- `RT9193-18GBF`++## CAD (KiCad official)++- Symbol: `RT9193-18GB`+- 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/rt9193-18gb-datasheet.pdf) (14 pp, sha256 `f6c77df0675f253b`, 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/rt9193-18gb-datasheet.pdf)
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