LN2220PAR

@@ -0,0 +1,46 @@+# LN2220PAR++**NATLINEAR** · DC-DC Converters · SOT-23-6L++LN2220PAR from NATLINEAR, in a SOT-23-6L. 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 | SW | power_out | Switching node. Drain of the internal power switch (up to 4A, RDS(on) ~80mΩ). Connects to the boost inductor and Schottky rectifier; absolute max 28V. Route with short, wide traces and isolate from sensitive signals due to high-frequency switching content. |+| 2 | GND | power_in | Device ground return. Connect directly to the system ground plane close to the input and output capacitor return terminals for a low-impedance return path. |+| 3 | FB | input | Feedback input to the internal error amplifier. Regulated to VFB = 0.6V (588-612mV). Set output voltage with a resistor divider: VOUT = VFB × (1 + R1/R2). R1 in the hundreds of kΩ is recommended. |+| 4 | EN | input | Chip enable, active-high. Drive above VENH (≥1.2V @ VIN=3.6V) to enable the regulator; drive below VENL (≤0.4V) to shut the device down (shutdown current ~0.01µA typ). Do not leave floating. |+| 5 | VIN | power_in | Supply input, 2V to 24V operating range (abs max Vss+24V). Bypass with ≥22µF close to the pin. UVLO trips near 2V (falling threshold min 1.7V) with ~100mV hysteresis. |+| 6 | NC | unconnected | No internal connection. Leave floating or tie to ground per PCB layout preference. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | NATLINEAR |+| Package | SOT-23-6L |+| Category | PMIC |+| Pins | 6 |++## Ordering variants++- `LN2220PARLN2220PAMR`+- `LN2220PARLN2220PAML`++## CAD (KiCad official)++- Symbol: `LN2220PAR`+- Footprint: `Package_TO_SOT_SMD:SOT-23-6`+- 3D model: SOT-23-6L (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [NATLINEAR datasheet](docs/ln2220par-datasheet.pdf) (6 pp, sha256 `0a94cbd2c8a08b3f`, 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/ln2220par-datasheet.pdf)

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