LGS63030B6

@@ -0,0 +1,46 @@+# LGS63030B6++**Legend Si** · LED Drivers · SOT-23-6++LGS63030B6 from Legend Si, in a SOT-23-6. 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 | output | Internal low-side N-channel power switch node (350mΩ typ RDS(on), 3A absolute max, up to 60V). Connect the external boost inductor and Schottky freewheeling diode here. |+| 2 | GND | power_in | Device ground return for the power switch and control circuitry. All voltages in the datasheet are referenced to GND. |+| 3 | FB | input | Current-sense feedback input. Regulated to VFB = 0.2V (typ, 0.195-0.205V); LED current is set by IOUT = VFB / RSENSE via an external sense resistor to GND. Absolute max −0.3V to +6V; typical FB bias current 50nA. |+| 4 | EN | input | Enable / dimming input. Drive high (>0.5V rising) to enable the boost converter, low (<0.4V falling) for low-power sleep. Accepts DC voltage for analog dimming (0.6-1.2V range on LGS63030) or a PWM square wave (100Hz-1kHz) for digital dimming. Internal ~800kΩ pull-down; absolute max −0.3V to +6V. |+| 5 | OVP | input | Output overvoltage-protection sense input. Tie to a resistor divider from VOUT to GND; trigger threshold 1V typ (rising), 0.86V (falling). Set VOUT_OVP = (1 + R1/R2) × 1V; recommended 1.3-1.5× nominal VOUT. Absolute max −0.3V to +6V - keep the pin below 1V in normal operation. |+| 6 | VIN | power_in | Main power input, 3.0-60V (absolute max −0.3V to +60V). UVLO rises ~3.0V, falls ~2.6V. Bypass with a 4.7µF or larger X5R/X7R ceramic capacitor placed as close to VIN and GND as possible. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Legend Si |+| Package | SOT-23-6 |+| Category | LED-drv |+| Pins | 6 |++## Ordering variants++- `LGS63030B6B6`+- `LGS63030B6EP`++## CAD (KiCad official)++- Symbol: `LGS63030B6`+- Footprint: `Package_TO_SOT_SMD:SOT-23-6`+- 3D model: SOT-23-6 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Legend Si datasheet](docs/lgs63030b6-datasheet.pdf) (20 pp, sha256 `f40f2a466f0716f8`, 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/lgs63030b6-datasheet.pdf)

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