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HG2594M-12

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by Ray

HGSEMI AC-DC Controllers and Regulators, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Contents

README

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HG2594M-12

HGSEMI · AC-DC Controllers and Regulators · SOP-8

HG2594M-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 pin. No internal function; may be left floating.
2 NC unconnected No-connect pin. No internal function; may be left floating.
3 NC unconnected No-connect pin. No internal function; may be left floating.
4 FEEDBACK input Voltage feedback input. Monitors the output voltage through an external resistor divider network for regulation. Internal reference threshold is 1.23 V. On fixed-output variants (like the -12) this is tied to the output through an internal divider network.
5 ON/OFF input Enable/shutdown control input (active-low enable). Tie to GND (low) to enable the regulator; drive high to shut down the chip. Defaults to low (enabled) when left floating. Threshold: high >=1.4 V (OFF), low <=0.8 V (ON).
6 GND power_in Ground/return pin. Must be routed carefully in layout; the return path from the output node through the Schottky catch diode should share this ground to suppress switching-current spikes and noise.
7 VIN power_in Input supply pin. Requires 4.5 V-40 V DC (HV variant: up to 60 V); the -12 fixed variant requires VIN >= 15 V for full 12 V regulation. Bypass with a large-value capacitor (e.g. 220 uF/50 V) to ground close to the pin to suppress input noise.
8 OUTPUT output Power switch output pin. This is the switching node driven by the internal power MOSFET; connects to the external inductor and Schottky catch diode to deliver up to 1 A to the load. Saturation voltage typically 1.3 V at 1 A.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • HG2594M-12/TR
  • HG2594ME-12/TR
  • HG2594HVM-12/TR

CAD (KiCad official)

  • Symbol: HG2594M-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 d4af4acaad0ab6e7, 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