component
HX1039A-AGC
Public Unreviewedby Ray
HEXIN DC-DC Converters, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownHX1039A-AGC
HEXIN · DC-DC Converters · SOP-8
HX1039A-AGC from HEXIN, 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. Leave floating or tie to ground per board layout preference. |
| 2 | VIN | power_in | Main supply input, 5V to 16V unregulated (absolute max 20V). Must be closely decoupled to GND with a 20µF or greater ceramic capacitor to prevent large voltage spikes at the input. |
| 3 | SW | output | Switch node connection to the external inductor. Connects to the drains of the internal main and synchronous power MOSFET switches; high-frequency voltage swing node, keep trace area small. |
| 4 | GND | power_in | Ground return pin for the device. |
| 5 | FB | input | Feedback input. Receives the divided output voltage from an external resistive divider; internal reference is 0.8V typical. Output voltage set by VOUT = 0.8V * [1 + (R2/R3)]. |
| 6 | COMP | output | Output of the internal transconductance error amplifier and input to the current comparator. Frequency compensation is achieved by connecting a series R-C network from this pin to ground. |
| 7 | EN | input | Enable / ON-OFF control input (active high). Forcing this pin above 1V enables the part; forcing below 0.7V shuts down the device. Do not leave EN floating. |
| 8 | NC | unconnected | No Connect. Leave floating or tie to ground per board layout preference. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HEXIN |
| Package | SOP-8 |
| Category | PMIC |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
HX1039A-AGC
CAD (KiCad official)
- Symbol:
HX1039A-AGC - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
hx1039a-agc.step |
122 KB | You want the bare part, or you mark your own boards. |
hx1039a-agc-etched.step |
2.1 MB | You want the part with HX1039A-AGC already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 529 faces against 147 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: HEXIN datasheet (9 pp, sha256
ebb06962f516d040, 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).