component

LGS63030B6

Public Made by Adom

by adom

Legend Si LED Drivers, SOT-23-6. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs lgs63030b6: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
lgs63030b6-etched.fit.json lgs63030b6: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lgs63030b6-etched.glb lgs63030b6: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lgs63030b6-etched.step lgs63030b6: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lgs63030b6.glb Publish 0.1.0 · Ray
lgs63030b6.kicad_mod Publish 0.1.0 · Ray
lgs63030b6.kicad_sym Publish 0.1.0 · Ray
lgs63030b6.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
lgs63030b6.step Publish 0.1.0 · Ray
package.json Publish 0.2.0 · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
page.json lgs63030b6: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md lgs63030b6: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

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

Same part, different packaging or reel option.

  • LGS63030B6
  • LGS63030B6EP

CAD (KiCad official)

  • Symbol: LGS63030B6
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: lgs63030b6-etched.step / lgs63030b6-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lgs63030b6.step / lgs63030b6.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
lgs63030b6.step 97 KB You want the bare part, or you mark your own boards.
lgs63030b6-etched.step 2.6 MB You want the part with LGS63030B6 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 606 faces against 117 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Legend Si datasheet (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