component
VIPER22AS-E
Public Made by Adomby adom
STMicroelectronics AC-DC Controllers And Regulators, SO-8. Pinout cross-checked by two models against the datasheet, 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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README
markdownVIPER22AS-E
STMicroelectronics · AC-DC Controllers And Regulators · SO-8
VIPER22AS-E from STMicroelectronics, in a SO-8. 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 | FB | input | Feedback input; useful voltage range 0 V to 1 V defines the peak drain MOSFET current with maximum feedback current of 3 mA. |
| 2 | VDD | power_in | Power supply of the control circuits with operating range 9 V to 38 V; also receives charging current from high voltage startup current source; undervoltage lockout thresholds VDDon=14.5 V and VDDoff=8 V. |
| 3 | SOURCE | power_in | Power MOSFET source and circuit ground reference. |
| 4 | SOURCE | power_in | Power MOSFET source and circuit ground reference (duplicate pin for lower inductance). |
| 5 | DRAIN | output | Power MOSFET drain with maximum drain-source voltage of 730 V; used by internal high voltage current source during startup phase for charging external VDD capacitor. |
| 6 | DRAIN | output | Power MOSFET drain (duplicate pin for current distribution). |
| 7 | DRAIN | output | Power MOSFET drain (duplicate pin for current distribution). |
| 8 | DRAIN | output | Power MOSFET drain (duplicate pin for current distribution). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SO-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
VIPER22AS-E - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files:
viper22as-e-etched.step/viper22as-e-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);viper22as-e.step/viper22as-e.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (21 pp, sha256
1beb8b2779d6db94, retrieved 2026-09-24, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).