LM2576HVS-12 from TECH PUBLIC, in a TO-263-5L. 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	Unregulated input supply. Operating range up to 60V (63V absolute max). Bypass locally with a 100uF/75V aluminum electrolytic close to the pin.
2	OUTPUT	output	Switch (SW) output pin. Internal power switch node that drives the external inductor and catch diode. Saturation voltage typ 1.4V at 3A; supports up to 3A load with 12V fixed output.
3	GND	power_in	Device ground reference. Also the thermal path for the TO-263 tab; connect to a ground plane for heat dissipation.
4	FEEDBACK	input	Regulation feedback input. On the fixed 12V version this pin connects directly to the regulated output to sense 12V. Internal reference is 1.23V (ADJ version divider tap).
5	ON/OFF	input	Active-low TTL-compatible enable/shutdown input. Logic low (<=0.8V) enables the regulator; logic high (>=2.4V, up to VIN) puts it in low-power standby (typ 50uA). Do not exceed VIN.

Key specifications

Parameter	Value
Manufacturer	TECH PUBLIC
Package	TO-263-5L
Category	PMIC
Pins	5

Ordering variants

Same part, different packaging or reel option.

LM2576HVS-12

CAD (KiCad official)

Symbol: LM2576HVS-12
Footprint: Package_TO_SOT_SMD:TO-263-2
3D model: TO-263-5L (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`lm2576hvs-12.step`	180 KB	You want the bare part, or you mark your own boards.
`lm2576hvs-12-etched.step`	1.9 MB	You want the part with `LM2576HVS-12` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 528 faces against 135 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

Datasheet: TECH PUBLIC datasheet (6 pp, sha256 c2f526f1b6543179, retrieved 2026-08-17, tier: lcsc)
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF