# GP7596B

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

GP7596B 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. Tied together internally with pins 2 and 3. Used as the return for the internal control logic in the 'floating-ground' SR architecture. |
| 2 | GND | power_in | Chip ground. Tied together internally with pins 1 and 3. |
| 3 | GND | power_in | Chip ground. Tied together internally with pins 1 and 2. |
| 4 | VCC | power_in | Chip supply, nominally 5 V (abs-max 6 V, clamp ~6 V @ 20 mA). Bypass locally with ~1 µF. Fed by the internal HV LDO from SW, so no auxiliary winding is needed. UVLO(ON)=3.7 V, UVLO(OFF)=2.8 V. |
| 5 | SW | power_out | Drain of the internal synchronous-rectifier power MOSFET. Tied together internally with pins 6, 7 and 8 to carry the SR current. Absolute-max 65 V, recommended 4.7-60 V, 15 A continuous / 30 A pulsed. |
| 6 | SW | power_out | Drain of the internal SR power MOSFET (tied to pins 5, 7, 8). |
| 7 | SW | power_out | Drain of the internal SR power MOSFET (tied to pins 5, 6, 8). |
| 8 | SW | power_out | Drain of the internal SR power MOSFET (tied to pins 5, 6, 7). Also feeds the internal HV LDO that generates VCC. |

## Key specifications

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

## Ordering variants

Same part, different packaging or reel option.

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

## CAD (KiCad official)

- Symbol: `GP7596B`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `gp7596b-etched.step` / `gp7596b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `gp7596b.step` / `gp7596b.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HaloChip datasheet](docs/gp7596b-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/gp7596b-datasheet.pdf)