# LM2595SX-ADJ

**Texas Instruments** · DC-DC Converters · TO-263-5

LM2595SX-ADJ from Texas Instruments, in a TO-263-5. 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 | Output | output | Internal switch output switching between (+VIN − VSAT) and approximately −0.5 V with duty cycle of approximately VOUT/VIN. |
| 2 | +VIN | power_in | Positive input supply voltage requiring bypass capacitor for voltage transient minimization and switching current supply. |
| 3 | Ground | power_in | Circuit ground. |
| 4 | Feedback | input | Feedback input sensing regulated output voltage for feedback loop completion. |
| 5 | ON/OFF | input | ON/OFF control input with threshold voltage of approximately 1.3 V; pull below to enable regulator, above to shut down (maximum voltage 25 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: `LM2595SX-ADJ`
- Footprint: `Package_TO_SOT_SMD:TO-263-5_TabPin6`
- 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files: `lm2595sx-adj-etched.step` / `lm2595sx-adj-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm2595sx-adj.step` / `lm2595sx-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/lm2595) (44 pp, sha256 `da40d6af2ea0e5fc`, retrieved 2026-09-23, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-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/lm2595sx-adj-datasheet.pdf)