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BTS3046SDRATMA1
Public Unreviewedby Ray
Infineon Technologies Power Distribution Switches, TO-252. 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
markdownBTS3046SDRATMA1
Infineon Technologies · Power Distribution Switches · TO-252
BTS3046SDRATMA1 from Infineon Technologies, in a TO-252. 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 | IN | input | Logic-level gate/control input (VIN(ON) 2 V-10 V functional range, IIN(ON) ≤ 30 µA in normal operation). Compatible with 3.3 V/5 V logic and also supports analog drive. Also serves as a bi-directional fault-feedback node: on internal fault the pin sinks up to IIN(lim) ≈ 400 µA, pulling an external series resistor to signal the fault to the driving MCU. Input current is internally self-limited between −0.2 V and 10 V and clamped to ±2 mA outside that window. |
| 2 | Drain | power_in | Drain of the internal N-channel power DMOS; connects to the load return that goes to Vbat (low-side switching). Rated for VD up to 60 V active-clamped; functional drain voltage 2.5 V-36 V. Nominal load current 3.6 A, current limit ≥ 10 A. Electrically common with the exposed tab (pin 4). |
| 3 | Source | power_in | Source of the internal power DMOS; the module/board GND reference. All voltages in the datasheet are referenced to this pin; ESD HBM rating (±2 kV) is specified with Source tied to ground. |
| 4 | Drain | power_in | Exposed thermal tab, electrically the Drain (common with pin 2). Provides the primary heat-sinking path; RthJC ≈ 0.9 K/W, RthJA(2s2p) ≈ 27 K/W on a JESD51 2s2p board. Solder to a copper pour connected to the load return for thermal performance. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Infineon Technologies |
| Package | TO-252 |
| Category | Power Management (PMIC) |
| Pins | 4 |
Ordering variants
Same part, different packaging or reel option.
BTS3046SDRATMA1
CAD (KiCad official)
- Symbol:
BTS3046SDRATMA1 - Footprint:
Package_TO_SOT_SMD:TO-252-2 - 3D model: TO-252 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Infineon Technologies datasheet (None pp, sha256
b678104907d6c0a1, 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).