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HG1509-12M

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by Ray

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

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Contents

README

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HG1509-12M

HGSEMI · DC-DC Converters · SOP-8

HG1509-12M 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 VIN power_in Supply voltage input pin. Operates from 4.5 V to 42 V DC. Bypass VIN to GND with a suitably large capacitor (e.g. 470 uF/35 V per typical app circuit) to eliminate input noise.
2 OUTPUT output Power switch output pin (SW). Internal power transistor switch node that supplies power (via external inductor and catch diode) to the regulated output. Rated for 2 A continuous.
3 FEEDBACK input Feedback pin (FB). Senses the output voltage through an external resistor divider network and regulates it. Internal feedback threshold voltage is 1.23 V.
4 ON/OFF input Enable pin. Drive ON/OFF pin low to turn on the device; drive it high to turn it off. Floating defaults to low (device on). TTL-compatible with hysteresis.
5 GND power_in Ground pin. Care must be taken in layout; this pin should be placed outside the Schottky diode-to-output-capacitor ground path to prevent switching current spikes from inducing voltage noise into the HG1509.
6 GND power_in Ground pin. Care must be taken in layout; this pin should be placed outside the Schottky diode-to-output-capacitor ground path to prevent switching current spikes from inducing voltage noise into the HG1509.
7 GND power_in Ground pin. Care must be taken in layout; this pin should be placed outside the Schottky diode-to-output-capacitor ground path to prevent switching current spikes from inducing voltage noise into the HG1509.
8 GND power_in Ground pin. Care must be taken in layout; this pin should be placed outside the Schottky diode-to-output-capacitor ground path to prevent switching current spikes from inducing voltage noise into the HG1509.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • HG1509-12M/TR
  • HG1509-12ME/TR

CAD (KiCad official)

  • Symbol: HG1509-12M
  • 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 (13 pp, sha256 36284b70ad8620c2, 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