component
BTS428L2
Public Made by Adomby adom
Infineon Technologies Power Distribution Switches, TO-252-4. 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
markdownBTS428L2
Infineon Technologies · Power Distribution Switches · TO-252-4
BTS428L2 from Infineon Technologies, in a TO-252-4. 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 | GND | power_in | Logic ground, independent from load ground. |
| 2 | IN | input | Input that activates the power switch in case of a logical high signal. |
| 3 | Vbb | power_in | Positive power supply voltage (operating range 4.75...41V); the tab is shorted to pin 3. |
| 4 | ST | output | Diagnostic feedback with open drain output, low on failure. |
| 5 | OUT | output | Output to the load. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Infineon Technologies |
| Package | TO-252-4 |
| Category | Power Management (PMIC) |
| Pins | 5 |
CAD (KiCad official)
- Symbol:
BTS428L2 - Footprint:
Package_TO_SOT_SMD:TO-252-4 - 3D model: TO-252-4 (KiCad packages3D, STEP)
- 3D model files:
bts428l2-etched.step/bts428l2-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bts428l2.step/bts428l2.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Infineon Technologies datasheet (15 pp, sha256
65b43750cc202f4a, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(vision), consensusclaude-opus-5-5(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).