TLE42754D

@@ -0,0 +1,47 @@+# TLE42754D++**Infineon** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-4++TLE42754D from Infineon, in a TO-252-4. 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 | I | power_in | Input supply pin. Regulated input from the vehicle battery / raw supply (operating input up to 42 V; withstands -42 V to 45 V). An input capacitor C_I to GND close to the IC terminals is recommended for compensating line influences. |+| 2 | RO | output | Reset Output. Open-collector output driven by the internal reset generator when the output voltage falls below V_Q,rt (typ. 4.65 V). Requires an external pull-up resistor to a positive potential; leave open if the reset function is not needed. |+| 3 | GND | power_in | Ground. On the TLE42754D (PG-TO252-5), pin 3 is not internally connected as GND on the leads; ground is provided via the TAB. (On the TLE42754G PG-TO263-5, pin 3 is internally connected to the tab.) Connect to system ground. |+| 4 | D | passive | Reset Delay Timing. Connect a ceramic capacitor from D to GND to program the power-on/undervoltage reset delay time. Leave open if the reset function is not needed. |+| 5 | Q | power_out | Regulated Output. 5 V ± 2% output capable of sourcing up to 450 mA with integrated current limiting. Block to GND with an output capacitor C_Q close to the IC terminals, respecting the C_Q/ESR values in the Functional Range table. |+| TAB | GND | power_in | Exposed metal TAB. Serves as the device ground and primary heat-sinking path; connect to the heatsink area / ground plane on the PCB. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Infineon |+| Package | TO-252-4 |+| Category | PMIC |+| Pins | 6 |++## Ordering variants++- `TLE42754DD`+- `TLE42754DG`+- `TLE42754DE`++## CAD (KiCad official)++- Symbol: `TLE42754D`+- Footprint: `Package_TO_SOT_SMD:TO-252-2`+- 3D model: TO-252-4 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Infineon datasheet](docs/tle42754d-datasheet.pdf) (29 pp, sha256 `903108b634588660`, 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](docs/tle42754d-datasheet.pdf)

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