LDK320M-R

@@ -0,0 +1,48 @@+# LDK320M-R++**STMicroelectronics** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5L++LDK320M-R 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 input supply to the LDO. Operating range 2.5 V to 18 V (absolute max -0.3 V to 20 V). Bypass to GND with a 1 uF ceramic capacitor placed close to the pin. |+| 2 | GND | power_in | Common ground reference for the regulator. All input, output, enable and ADJ voltages are referenced to this pin. |+| 3 | EN | input | Enable logic input. Drive high to activate the regulator, low to place it in shutdown (total current < 1 uA typ). Absolute max range -0.3 V to VIN+0.3 V. Must not be left floating. |+| 4 | ADJ | input | Adjust feedback input for the adjustable version (LDK320M-R). Connect to the midpoint of an external resistor divider from VOUT to GND; the regulator forces VADJ ~1.2 V (VADJref), so VOUT = VADJ x (1 + R1/R2). Absolute max -0.3 V to 2 V. On fixed-output variants this pin is NC. |+| 5 | OUT | power_out | Regulated output of the LDO. Delivers up to 200 mA with 100 mV typ dropout at 100 mA. Requires a 1 uF ceramic output capacitor to GND for stability. Absolute max -0.3 V to VIN+0.3 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | SOT-23-5L |+| Category | Power Management (PMIC) |+| Pins | 5 |++## Ordering variants++Same part, different packaging or reel option.++- `LDK320M-R`+- `LDK320M-RU-R`+- `LDK320M-RDU-R`++## CAD (KiCad official)++- Symbol: `LDK320M-R`+- 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://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588911797897846784) (None pp, sha256 `053235d2672f89b8`, 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/ldk320m-r-datasheet.pdf)

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