# LP38501ATJ-ADJ

**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-263-5

LP38501ATJ-ADJ from Texas Instruments, 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 | EN | input | Enable input (LP38501 only): pull high to enable the output and low to disable it; it has no internal bias and must be tied to the input voltage or actively driven, with an enable input voltage range of 0 V to 5.5 V. |
| 2 | IN | power_in | Input supply pin, with a recommended input supply voltage range of 2.7 V to 5.5 V. |
| 3 | GND | power_in | Ground pin. |
| 4 | OUT | power_out | Regulated output voltage pin, with output current rated 0 to 3 A DC. |
| 5 | ADJ | input | Sets the output voltage; the adjustable VOUT range is 0.6 V to 5 V. |
| 6 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TO-263-5 |
| Category | Power Management (PMIC) |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `LP38501ATJ-ADJ`
- Footprint: `Package_TO_SOT_SMD:TO-263-5_TabPin6`
- 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files: `lp38501atj-adj-etched.step` / `lp38501atj-adj-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lp38501atj-adj.step` / `lp38501atj-adj.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/lp38501-adj) (28 pp, sha256 `1784e9b9b4a3ff36`, retrieved 2026-10-08, tier: lcsc)
- **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/lp38501atj-adj-datasheet.pdf)