# LM2575MX-5.0

**Texas Instruments** · DC-DC Converters · SOIC-24-300mil

LM2575MX-5.0 from Texas Instruments, in a SOIC-24-300mil. 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 | PWR GND | power_in | Power ground; solder to wide PCB copper for low inductance and good thermal performance. |
| 2 | NC | unconnected | No internal connection. |
| 3 | NC | unconnected | No internal connection. |
| 4 | NC | unconnected | No internal connection. |
| 5 | NC | unconnected | No internal connection. |
| 6 | NC | unconnected | No internal connection. |
| 7 | FB | input | Feedback pin, wired to the output voltage point of the regulator (fixed 5.0V version). |
| 8 | SIG GND | power_in | Signal ground; solder to wide PCB copper traces. |
| 9 | NC | unconnected | No internal connection. |
| 10 | ON/OFF | input | Shutdown input: ground or drive below about 1.6V TTL for normal operation, drive high to enter standby; must not be left open and can be pulled up to VIN without a series resistor. |
| 11 | NC | unconnected | No internal connection. |
| 12 | PWR GND | power_in | Power ground; solder to wide PCB copper for low inductance and good thermal performance. |
| 13 | NC | unconnected | No internal connection. |
| 14 | VIN | power_in | Unregulated DC input supply (operating range 40V max for LM2575), bypassed with at least a 47 µF electrolytic capacitor placed close to the pin. |
| 15 | VIN | power_in | Unregulated DC input supply (operating range 40V max for LM2575), bypassed with at least a 47 µF electrolytic capacitor placed close to the pin. |
| 16 | NC | unconnected | No internal connection. |
| 17 | OUTPUT | output | Switch output (1A switch) connected to the inductor and catch diode. |
| 18 | OUTPUT | output | Switch output (1A switch) connected to the inductor and catch diode. |
| 19 | NC | unconnected | No internal connection. |
| 20 | NC | unconnected | No internal connection. |
| 21 | NC | unconnected | No internal connection. |
| 22 | NC | unconnected | No internal connection. |
| 23 | NC | unconnected | No internal connection. |
| 24 | NC | unconnected | No internal connection. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-24-300mil |
| Category | Power Management (PMIC) |
| Pins | 24 |

## CAD (KiCad official)

- Symbol: `LM2575MX-5.0`
- Footprint: `Package_SO:SOIC-24W_7.5x15.4mm_P1.27mm`
- 3D model: SOIC-24-300mil (KiCad packages3D, STEP)
- 3D model files: `lm2575mx-5-0-etched.step` / `lm2575mx-5-0-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm2575mx-5-0.step` / `lm2575mx-5-0.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/lm2575hv) (46 pp, sha256 `67d18983ac3edb34`, retrieved 2026-10-07, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/lm2575mx-5-0-datasheet.pdf)