# L7824CD2T-TR

**STMicroelectronics** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · D2PAK

L7824CD2T-TR from STMicroelectronics, in a D2PAK. 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 | INPUT | power_in | Unregulated DC input supply pin, labeled INPUT in Figure 3 pin connections (top view) for the D²PAK package; per Table 1 absolute maximum ratings the DC input voltage must not exceed 40 V for this VO=24 V version (35 V for VO=5-18 V versions), and per Table 18 (L7824C) the input is exercised up to VI=38 V. |
| 2 | GND | power_in | Ground/common reference pin, shown as the 'GND' tab in Figure 3 pin connections (top view); this tab is the exposed metal mounting surface used for heat sinking, with thermal resistance junction-to-case of 3 °C/W and junction-to-ambient of 62.5 °C/W for the D²PAK package per Table 2. |
| 3 | OUTPUT | power_out | Regulated output pin, labeled OUTPUT in Figure 3, delivering a fixed 24 V output (23 to 25 V, typ. 24 V at TJ=25 °C, per Table 18 for L7824C) with output current up to 1.5 A per the Features list, internal current limiting, thermal shutdown and SOA protection. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | D2PAK |
| Category | Power Management (PMIC) |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `L7824CD2T-TR`
- Footprint: `Package_TO_SOT_SMD:TO-263-2`
- 3D model: D2PAK (KiCad packages3D, STEP)
- 3D model files: `l7824cd2t-tr-etched.step` / `l7824cd2t-tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `l7824cd2t-tr.step` / `l7824cd2t-tr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [STMicroelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588894288163295232) (55 pp, sha256 `f7b390b5c05e0aba`, retrieved 2026-09-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-sonnet-5` (text+vision), consensus `claude-opus-4-8` (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/l7824cd2t-tr-datasheet.pdf)