component
LM2575SX-5.0
Public Made by Adomby adom
Texas Instruments DC-DC Converters, TO-263-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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LM2575SX-5.0
Texas Instruments · DC-DC Converters · TO-263-5
LM2575SX-5.0 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 | VIN | power_in | Input supply voltage pin; operating input range is 4.75V-40V for the LM2575-5.0 (Absolute Maximum Supply Voltage for LM1575/LM2575 is 45V); must be bypassed with at least a 47 µF electrolytic capacitor located close to the regulator. |
| 2 | Output | output | Switch output pin that sources the regulator's internal power-switch current to the external inductor/catch-diode; cycle-by-cycle current limited to a typical peak of 2.2A, and the output voltage to ground must not go below -1V (steady state) per the Absolute Maximum Ratings. |
| 3 | Ground | power_in | Power ground pin; for this DDPAK/TO-263 package the exposed tab is also ground ("TAB IS GND") and is electrically the same node as pin 3, used as the low-impedance power ground and for heat sinking to the PCB copper. |
| 4 | Feedback | input | Feedback voltage-sense input; for this fixed 5.0V output version this pin must be wired directly to the regulator's output voltage point to close the internal regulation loop (feedback bias current is not applicable for fixed versions; on Adjustable versions the feedback bias current is typically 50 nA). |
| 5 | ON/OFF | input | TTL/CMOS-compatible shutdown control input; drive low (typically below 1.6V, VIL max spec) for normal operation and high (VIH, typically above 1.4V) to place the device in standby mode drawing a typical 50 µA (200 µA max) standby quiescent current; this pin can be pulled up to +VIN without a series resistor and must not be left open. |
| 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:
LM2575SX-5.0 - Footprint:
Package_TO_SOT_SMD:TO-263-5_TabPin6 - 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files:
lm2575sx-5-0-etched.step/lm2575sx-5-0-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm2575sx-5-0.step/lm2575sx-5-0.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (46 pp, sha256
67d18983ac3edb34, retrieved 2026-09-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-sonnet-5(text+vision), consensusclaude-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).