# TLE4276G V50

**Infineon Technologies** · Linear Voltage Regulators (LDO) · TO-263-5

TLE4276G V50 from Infineon Technologies, in a TO-263-5. 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 | I | power_in | Input, to be blocked to ground directly at the IC with a ceramic capacitor; the V50 input range is VQ + 0.5 V to 40 V. |
| 2 | INH | input | Low-active inhibit input; switching the regulator off via this pin reduces the current consumption below 10 µA. |
| 3 | GND | power_in | Ground reference pin for the regulator; the heatsink is also to be connected to GND. |
| 4 | N.C. | unconnected | Not connected for the V50 version; the voltage adjust input VA on pin 4 applies only to the adjustable version. |
| 5 | Q | power_out | Output of the 5.0 V regulator (4.8 V to 5.2 V, up to 400 mA), to be blocked to GND with a capacitor of at least 22 µF with ESR ≤ 3 Ω at 10 kHz. |
| 6 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Infineon Technologies |
| Package | TO-263-5 |
| Category | Power Management ICs |
| Pins | 6 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input voltage | VI | -42 |  | 45 | V |  | 6 |
| Inhibit voltage | VINH | -42 |  | 45 | V |  | 6 |
| Output voltage | VQ | -1 |  | 40 | V |  | 6 |
| Ground current | IGND |  |  | 100 | mA |  | 6 |
| Junction temperature | Tj | -40 |  | 150 | °C |  | 6 |
| Storage temperature | Tstg | -50 |  | 150 | °C |  | 6 |
| ESD capability (Human Body Model) | VESD,HBM | 2000 |  |  | V | Human Body Model | 6 |
| Input voltage (operating range, fixed voltage devices V50) | VI |  |  | 40 | V | Fixed voltage devices V50 | 7 |
| Junction temperature (operating range) | Tj | -40 |  | 150 | °C |  | 7 |
| Junction ambient thermal resistance (TO263) | Rthj-a |  |  | 80 | K/W | TO263; package mounted on PCB 80 × 80 × 1.5 mm, 35µ Cu, 5µ Sn, footprint only, zero airflow | 7 |
| Junction case thermal resistance | Rthj-c |  |  | 4 | K/W |  | 7 |
| Output voltage (V50) | VQ | 4.8 | 5 | 5.2 | V | 5 mA < IQ < 400 mA; 6 V < VI < 28 V | 8 |
| Output current limitation | IQ | 400 | 600 | 1100 | mA |  | 8 |
| Current consumption | Iq |  |  | 10 | µA | VINH = 0 V; Tj ≤ 100 °C | 8 |
| Current consumption | Iq |  | 100 | 220 | µA | IQ = 1 mA | 8 |
| Current consumption | Iq |  | 5 | 10 | mA | IQ = 250 mA | 8 |
| Current consumption | Iq |  | 15 | 25 | mA | IQ = 400 mA | 8 |
| Drop voltage (V50) | VDR |  | 250 | 500 | mV | IQ = 250 mA; VDR = VI - VQ | 8 |
| Load regulation | ΔVQ,Lo |  | 5 | 35 | mV | IQ = 5 mA to 400 mA | 8 |
| Line regulation | ΔVQ,Li |  | 15 | 25 | mV | ΔVI = 12 V to 32 V; IQ = 5 mA | 8 |
| Inhibit on voltage | VINH |  | 2 | 3.5 | V | VQ ≥ 4.9 V | 9 |
| Inhibit off voltage | VINH | 0.5 | 1.7 |  | V | VQ ≤ 0.1 V | 9 |
| Input current (inhibit) | IINH | 5 | 10 | 20 | µA | VINH = 5 V | 9 |

## CAD (KiCad official)

- Symbol: `TLE4276G V50`
- Footprint: `Package_TO_SOT_SMD:TO-263-5_TabPin6`
- 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files: `tle4276g-v50-etched.step` / `tle4276g-v50-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tle4276g-v50.step` / `tle4276g-v50.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Infineon Technologies datasheet](docs/tle4276g-v50-datasheet.pdf) (16 pp, sha256 `48b71e7752a40add`, retrieved 2026-10-30, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-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).

[Datasheet PDF](docs/tle4276g-v50-datasheet.pdf)