bl9193-adbaprn

@@ -0,0 +1,45 @@+# BL9193-ADBAPRN++**BL Shanghai Belling** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5++BL9193-ADBAPRN from BL Shanghai Belling, 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 2V to 6V; absolute max -0.3V to +6V. Recommended input capacitor ≥1µF ceramic located <0.5 inch from this pin and returned to a clean analog ground for stability and PSRR. |+| 2 | GND | power_in | Device ground. Also the return for the BP/FB bypass capacitor - connect that capacitor's ground directly to this pin. Use separate VIN and VOUT ground planes joined only at this pin for best PSRR and transient response. |+| 3 | EN | input | Chip enable (TTL-logic). For the '-ADBAPRN' option ('A' enable variant), EN is active-high with an internal 8MΩ pull-down: VIH ≥ 1.2V starts the regulator, VIL ≤ 0.4V forces shutdown (ISTBY < 1µA). Tie to VIN if the enable function is not needed. Absolute max -0.3V to +VIN. |+| 4 | FB | input | Feedback pin for the adjustable version (BL9193-AD). Connect to the tap of an external resistor divider from VOUT to GND; VOUT = VREF × (1 + R1/R2), where VREF = 1.23V typ. Recommended R2 = 30.1kΩ (~50µA divider current) with a small compensation cap (e.g. 22pF) from VOUT to FB for stability. On fixed-output BL9193 variants this same pin is BP (22nF bypass to GND for low output noise); on this '-AD' orderable it functions as FB. |+| 5 | VOUT | power_out | Regulated output voltage, up to 300mA. Current-limited (typ. 430mA) with thermal shutdown at 165°C (30°C hysteresis). Requires ≥1µF low-ESR (>25mΩ) ceramic output capacitor located <0.5 inch from this pin; larger COUT improves noise, PSRR, and load transient response. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | BL Shanghai Belling |+| Package | SOT-23-5 |+| Category | PMIC |+| Pins | 5 |++## Ordering variants++- `BL9193-ADBAPRN`+- `BL9193-ADBAPRNURN`++## CAD (KiCad official)++- Symbol: `BL9193-ADBAPRN`+- 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:** [BL Shanghai Belling datasheet](docs/bl9193-adbaprn-datasheet.pdf) (None pp, sha256 `f0a141621110d1b2`, 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/bl9193-adbaprn-datasheet.pdf)

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