# GP7596A

**HaloChip** · Synchronous Rectifier Controllers · SOP-8

GP7596A from HaloChip, 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 | GND | power_in | Chip ground. Return for the internal control logic and driver, and source of the internal power MOSFET (floating-ground / GP7596X pinout variant). |
| 2 | GND | power_in | Chip ground. Tied internally to pins 1 and 3; parallel these pins to the ground plane to reduce inductance to the MOSFET source. |
| 3 | GND | power_in | Chip ground. Tied internally to pins 1 and 2. |
| 4 | VCC | power_in | Chip supply pin, nominally 5 V (UVLO on 3.7 V, UVLO off 2.8 V, internally clamped to 6 V at 20 mA). Place a bypass capacitor (typ. 1 µF) close to this pin; the internal HV LDO charges VCC from SW/SWS so no auxiliary winding is needed. |
| 5 | SW | power_out | Drain of the integrated synchronous-rectifier power MOSFET. Operating drain-source voltage rated to 65 V (recommended 4.7-60 V); RDS(on) 18 mΩ for the GP7596A. Tie pins 5-8 in parallel to carry the SR current with minimum resistance. |
| 6 | SW | power_out | Drain of the integrated power MOSFET. Tied internally to pins 5, 7, 8. |
| 7 | SW | power_out | Drain of the integrated power MOSFET. Tied internally to pins 5, 6, 8. |
| 8 | SW | power_out | Drain of the integrated power MOSFET. Tied internally to pins 5, 6, 7. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HaloChip |
| Package | SOP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |

## Ordering variants

Same part, different packaging or reel option.

- `GP7596A`
- `GP7596AA`
- `GP7596AB`
- `GP7596B`
- `GP7596BA`
- `GP7596BB`
- `GP7596C`
- `GP7596CA`
- `GP7596CB`

## CAD (KiCad official)

- Symbol: `GP7596A`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `gp7596a-etched.step` / `gp7596a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `gp7596a.step` / `gp7596a.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HaloChip datasheet](docs/gp7596a-datasheet.pdf) (7 pp, sha256 `c7e9e6914030b64f`, 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](docs/gp7596a-datasheet.pdf)