component
JW1121ASOTB#TRPBF
Public Unreviewedby Ray
JoulWatt Tech LED Drivers, SOT-23-6. Datasheet-verified pinout, 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
markdownJW1121ASOTB#TRPBF
JoulWatt Tech · LED Drivers · SOT-23-6
JW1121ASOTB#TRPBF from JoulWatt Tech, 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 | Switching node that supplies power to the output; connect the output LC filter from this pin to the LED load. |
| 2 | GND | power_in | Ground pin. |
| 3 | BST | output | Bootstrap capacitor pin; connect 0.01µF capacitor between this pin and SW to supply current to the top switch and gate driver. |
| 4 | EN/DIM | input | Enable/Dimming control input; drive above 0.65V to enable the LED driver, modulate 0.65V-1.2V for analog dimming (1%-100% LED current), or apply PWM signal above 2V amplitude for PWM-to-analog dimming mode. |
| 5 | VIN | power_in | Input power supply pin rated 4.2V-20V; bypass to GND with suitable capacitor to eliminate input noise. |
| 6 | SEN | input | Negative current sense feedback pin for LED current regulation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | JoulWatt Tech |
| Package | SOT-23-6 |
| Category | LED Drivers |
| Pins | 6 |
CAD (KiCad official)
- Symbol:
JW1121ASOTB#TRPBF - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
jw1121asotb-trpbf-etched.step/jw1121asotb-trpbf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);jw1121asotb-trpbf.step/jw1121asotb-trpbf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: JoulWatt Tech datasheet (13 pp, sha256
7a181ae6c5501004, retrieved 2026-09-17, 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).