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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 (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