component
LM3519MK-20
Public Made by Adomby adom
Texas Instruments LED Drivers, TSOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLM3519MK-20
Texas Instruments · LED Drivers · TSOT-23-6
LM3519MK-20 from Texas Instruments, in a TSOT-23-6. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | En | input | Device enable control input; enables device when VEN ≥ 0.9V, disables when VEN ≤ 0.3V, bias current 0.1-2µA. |
| 2 | Gnd | power_in | Ground reference connection. |
| 3 | VOUT | power_out | Boost converter output voltage connection; OVP threshold 18-20V, absolute maximum -0.3V to +21V. |
| 4 | LED_rtn | input | White LED current sensing input connection; internal NMOS switch ON resistance 8.0Ω, absolute maximum -0.3V to +6.5V. |
| 5 | SW | output | Internal power FET switch drain connection; peak current limit 750mA with RDS(ON) 455mΩ, absolute maximum -0.3V to +21V. |
| 6 | VIN | power_in | Input or supply voltage connection; operating range 2.7V to 5.5V, absolute maximum -0.3V to +6.5V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSOT-23-6 |
| Category | LED Drivers |
| Pins | 6 |
CAD (KiCad official)
- Symbol:
LM3519MK-20 - Footprint:
Package_TO_SOT_SMD:TSOT-23-6 - 3D model: TSOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
lm3519mk-20-etched.step/lm3519mk-20-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm3519mk-20.step/lm3519mk-20.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (21 pp, sha256
c90608aaba2289f0, retrieved 2026-09-26, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).