LDK130M33R

@@ -0,0 +1,46 @@+# LDK130M33R++**STMicroelectronics** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5L++LDK130M33R from STMicroelectronics, in a SOT-23-5L. 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 | Unregulated DC input supply for the LDO, 1.9 V to 5.5 V operating (absolute max 7 V). Requires a 1 uF ceramic input capacitor (C_I) to ground close to the pin. |+| 2 | GND | power_in | Common ground return for the device. All voltages in the datasheet are referenced to this pin. |+| 3 | EN | input | Enable logic input: drive high to turn the regulator on, low to place the device in shutdown (total consumption < 1 uA). Absolute max V_EN is V_IN + 0.3 V; must not float. |+| 4 | BYP | passive | Noise-reduction bypass pin on this fixed 3.3 V (M33) version. An optional small ceramic bypass capacitor (C_BYP) to GND lowers output noise; if unused the pin must be left floating with no board routing. Absolute max pin voltage 2 V. (On adjustable variants this pin is ADJ, the feedback input.) |+| 5 | OUT | power_out | Regulated 3.3 V output, 300 mA maximum guaranteed. Requires a >= 1 uF ceramic output capacitor (C_O) to GND for stability; typical dropout 100 mV at 100 mA load. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | SOT-23-5L |+| Category | PMIC |+| Pins | 5 |++## Ordering variants++- `LDK130M33RM33R`+- `LDK130M33RPU33R`+- `LDK130M33RC33R`++## CAD (KiCad official)++- Symbol: `LDK130M33R`+- Footprint: `Package_TO_SOT_SMD:SOT-23-5`+- 3D model: SOT-23-5L (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/ldk130m33r.pdf) (27 pp, sha256 `8c05ff9f4c61dc16`, 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/ldk130m33r-datasheet.pdf)

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