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LM2594M-12

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by Ray

HGSEMI DC-DC Converters, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

markdown

LM2594M-12

HGSEMI · DC-DC Converters · SOP-8

LM2594M-12 from HGSEMI, in a SOP-8. 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 NC unconnected No connect. No internal function; may be left floating.
2 NC unconnected No connect. No internal function; may be left floating.
3 NC unconnected No connect. No internal function; may be left floating.
4 FEEDBACK input Voltage feedback input. Internally regulated to a 1.23V reference; for fixed 12V version this pin is tied to the regulated output for internal divider sensing. Absolute max -0.3V to VIN.
5 ON/OFF input Active-low enable input. Tie to GND (logic low, <0.8V) to enable regulator operation; drive high (>1.4V) to shut down. Floats low internally if left open. Absolute max -0.3V to VIN.
6 GND power_in Ground return. Should be placed on the return path shared with output and catch-diode nodes to minimize switching noise pickup; layout critical.
7 VIN power_in Supply input. 4.5V to 40V DC input (60V for HV variant); requires a bulk input capacitor between VIN and GND to suppress supply-line noise.
8 OUTPUT output Switching-node output of the internal power switch. Connects to the external inductor and catch diode of the buck power stage; delivers up to 1A to the load. Absolute max -0.3V to VIN.

Key specifications

Parameter Value
Manufacturer HGSEMI
Package SOP-8
Category PMIC
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • LM2594M-12/TR
  • LM2594HVM-12/TR
  • LM2594ME-12/TR

CAD (KiCad official)

  • Symbol: LM2594M-12
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: HGSEMI datasheet (12 pp, sha256 373bc39e42880ae7, retrieved 2026-08-17, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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