# VIPER011XS

**STMicroelectronics** · AC-DC Controllers And Regulators · SSOP-10

VIPER011XS from STMicroelectronics, in a SSOP-10. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | GND | power_in | Ground and MOSFET source connection point for internal MOSFET source and bias current return path. |
| 2 | VCC | power_in | Controller supply pin (internally limited) with internal high-voltage current source requiring external storage capacitor and 0.1 µF bypass capacitor for noise filtering. |
| 3 | DIS | input | Disable input pin (-0.3 to 4.25 V) that disables PWM in auto-restart mode when exceeding 1.2 V threshold for more than 1 ms; must be grounded if unused. |
| 4 | FB | input | Direct feedback inverting input (-0.3 to 4.25 V) of internal transconductance amplifier referenced at 1.2 V to GND; disabled by soldering to GND. |
| 5 | COMP | output | Compensation network output (-0.3 to 5.25 V) of internal error amplifier driving feedback loop for drain peak current setpoint. |
| 6 | DRAIN | output | MOSFET drain pin (maximum 800 V drain-to-source voltage, 2 A pulsed current) mechanically connected to internal metal PAD for heat dissipation. |
| 7 | DRAIN | output | MOSFET drain pin (maximum 800 V drain-to-source voltage, 2 A pulsed current) mechanically connected to internal metal PAD for heat dissipation. |
| 8 | DRAIN | output | MOSFET drain pin (maximum 800 V drain-to-source voltage, 2 A pulsed current) mechanically connected to internal metal PAD for heat dissipation. |
| 9 | DRAIN | output | MOSFET drain pin (maximum 800 V drain-to-source voltage, 2 A pulsed current) mechanically connected to internal metal PAD for heat dissipation. |
| 10 | DRAIN | output | MOSFET drain pin (maximum 800 V drain-to-source voltage, 2 A pulsed current) mechanically connected to internal metal PAD for heat dissipation. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SSOP-10 |
| Category | Power Management (PMIC) |
| Pins | 10 |

## CAD (KiCad official)

- Symbol: `VIPER011XS`
- Footprint: `Package_SO:SSOP-10_3.9x4.9mm_P1.00mm`
- 3D model: SSOP-10 (KiCad packages3D, STEP)
- 3D model files: `viper011xs-etched.step` / `viper011xs-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `viper011xs.step` / `viper011xs.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [STMicroelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590454853970661376) (36 pp, sha256 `6327df47bb70293b`, retrieved 2026-10-07, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/viper011xs-datasheet.pdf)