# TLE7274-2D

**Infineon Technologies** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252

TLE7274-2D 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 | I | power_in | Regulator input supply. Nominal operating range 5.5 V to 42 V (abs. max -0.3 V to 45 V). Must be blocked to ground directly at the IC with a ceramic capacitor. Typically connected permanently to VBAT. |
| 2 | GND | power_in | Device ground reference. Internally connected to the heat slug/tab; connect the tab to GND and to the PCB heatsink area for thermal dissipation (RthJC ~6 K/W). |
| 3 | Q | power_out | Regulated 5.0 V ±2% output, up to 300 mA (typ. dropout 250 mV @ 200 mA). Must be blocked to ground with a capacitor close to the IC terminals: CQ ≥ 470 nF, ESR ≤ 10 Ω at 10 kHz. Output-current limit min 301 mA; internal sink circuitry keeps VQ ≤ 5.5 V under reverse-current conditions. |
| TAB | GND | power_in | Heat slug / exposed tab of the PG-TO252-3 package. Internally connected to GND (pin 2); must be soldered to the GND heatsink copper area on the PCB 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.

- `TLE7274-2D`
- `TLE7274-2D2G`
- `TLE7274-2G`
- `TLE7274-2D2E`
- `TLE7274-2E`

## CAD (KiCad official)

- Symbol: `TLE7274-2D`
- Footprint: `Package_TO_SOT_SMD:TO-252-2`
- 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files: `tle7274-2d-etched.step` / `tle7274-2d-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tle7274-2d.step` / `tle7274-2d.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Infineon Technologies datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588912724965265408) (19 pp, sha256 `584877d82d9770ac`, 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/tle7274-2d-datasheet.pdf)