{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"VIPER22AS-E","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"VIPER22AS-E","canonicalUrl":"https://icboms.com/stmicroelectronics/VIPER22AS-E","factsUrl":"https://icboms.com/api/mcp/products/VIPER22AS-E","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics VIPER™ series, VIPER22AS-E, offline flyback switcher with integrated 730V power MOSFET, 7W output, 60kHz fixed switching frequency, 8-SOIC package, -40°C to 150°C junction temperature.","salesMarkdown":"## Offline flyback switcher with 730V integrated MOSFET The VIPER22AS-E is an offline flyback switching regulator from STMicroelectronics' VIPER™ series, integrating a 730V avalanche-rugged power MOSFET and a PWM controller in an 8-SOIC package. It delivers up to 7 W of continuous output power from a universal AC input, making it a common choice for auxiliary power supplies in appliances, industrial controls, and AC-DC adapters. The 730V breakdown voltage provides headroom for universal AC input with reflected voltage spikes. ## 60 kHz fixed frequency and protection set The internal oscillator runs at 60 kHz fixed frequency. That sets the transformer core size and the EMI filter corner. On-chip fault protection includes current limiting, over-temperature shutdown, and over-voltage protection. These reduce the external component count to a minimum — a bridge rectifier, bulk cap, transformer, and output rectifier are the main bill-of-material items. The supply voltage range (Vcc) spans 8 V to 38 V, and the start-up threshold is 14.5 V. That start-up voltage lets the IC boot from a small auxiliary winding before the main output stabilises. For BOM line commitments, the part is sourced to order against your quantity.","metaTitle":"VIPER22AS-E STMicroelectronics Offline Flyback Switcher 7W","metaDescription":"VIPER22AS-E STMicroelectronics VIPER™ series offline flyback switcher. 7W output, 730V breakdown, 60kHz fixed frequency, -40°C to 150°C junction.","metaKeywords":null},"attributes":{"series":"VIPER™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"STMicroelectronics","Series":"VIPER™","Package":"Tube","Topology":"Flyback","Duty Cycle":"-","Mounting Type":"Surface Mount","Power (Watts)":"7 W","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","Control Features":"-","Fault Protection":"Current Limiting, Over Temperature, Over Voltage","Output Isolation":"Isolated","Internal Switch(s)":"Yes","Voltage - Start Up":"14.5 V","Base Product Number":"VIPER22","Voltage - Breakdown":"730V","Frequency - Switching":"60kHz","Operating Temperature":"-40°C ~ 150°C (TC)","Supplier Device Package":"8-SOIC","Voltage - Supply (Vcc/Vdd)":"8V ~ 38V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.5500","priceTiers":[{"qty":1,"price":"$1.55000","currency":"USD"},{"qty":10,"price":"$1.38900","currency":"USD"},{"qty":25,"price":"$1.31080","currency":"USD"},{"qty":100,"price":"$1.11670","currency":"USD"},{"qty":250,"price":"$1.04860","currency":"USD"},{"qty":500,"price":"$0.91750","currency":"USD"},{"qty":1000,"price":"$0.76022","currency":"USD"},{"qty":2500,"price":"$0.70779","currency":"USD"},{"qty":5000,"price":"$0.68158","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/9d5c6cfc387f8e17bc5260539677ab2d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/VIPER22AS-E/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum output power of VIPER22AS-E?","answer":"The rated output power is 7 W continuous in a flyback topology with output isolation. The actual achievable power depends on input voltage range, ambient temperature, and transformer design — derate for high line or restricted airflow."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/VIPER22AS-E","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/VIPER22AS-E when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}