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hg2594m-3-3
Public Unreviewedby Ray
HGSEMI HG2594M 3 3 TR AC-DC Controllers and Regulators, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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markdownHG2594M-3.3
HGSEMI HG2594M 3 3 TR · AC-DC Controllers and Regulators · SOP-8
HG2594M-3.3 from HGSEMI HG2594M 3 3 TR, 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; leave floating or tie to a copper island for mechanical/thermal support only. |
| 2 | NC | unconnected | No connect. No internal function; leave floating. |
| 3 | NC | unconnected | No connect. No internal function; leave floating. |
| 4 | FB | input | Feedback input. On the fixed 3.3 V version this pin is tied directly to the regulated output; the internal divider senses the output and regulates to the 1.23 V internal reference. Threshold voltage at this pin is 1.23 V. |
| 5 | ON/OFF | input | Active-low enable input with hysteresis. Logic low (< 0.8 V) or floating enables the regulator; logic high (> 1.4 V) shuts it down. Standby current with ON/OFF held high is typ. 80 µA. |
| 6 | GND | power_in | Device ground return. Must be routed on the output-side return path (not through the Schottky catch diode loop) to keep switching-current spikes off the analog ground. |
| 7 | VIN | power_in | Supply input. Accepts 4.5 V to 40 V DC (60 V on HV variants). A large-value bulk capacitor between VIN and GND is required to filter input noise. |
| 8 | OUTPUT | output | Switching-node output of the internal power transistor; drives the external inductor / Schottky catch diode / output capacitor buck network. Rated for 1 A continuous load current with typ. 1.3 V saturation drop. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI HG2594M 3 3 TR |
| Package | SOP-8 |
| Category | PMIC |
| Pins | 8 |
Ordering variants
HG2594M-3.3/TRHG2594M-3.3HG2594ME-3.3/TR
CAD (KiCad official)
- Symbol:
HG2594M-3.3 - 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 HG2594M 3 3 TR datasheet (None 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).