{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"VIPER011LSTR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"VIPER011LSTR","canonicalUrl":"https://icboms.com/stmicroelectronics/VIPER011LSTR","factsUrl":"https://icboms.com/api/mcp/products/VIPER011LSTR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics VIPER011LSTR offline switching regulator, 800 V breakdown, 7 W output, 60 kHz fixed frequency, buck/buck-boost/flyback topology, 10-SSOP package, active.","salesMarkdown":"## 7 W offline converter with 800 V MOSFET — sizing the rail The VIPER011LSTR is a monolithic offline switching regulator from ST that integrates a power MOSFET with an 800 V breakdown rating and a PWM controller in a single 10-SSOP package. ## Fixed 60 kHz switching — transformer and filter sizing The switching frequency is fixed at 60 kHz, which sets the transformer core cross-section and the corner frequency of the input EMI filter. At this frequency the internal MOSFET's switching losses are predictable, but the designer should confirm the transformer design does not push the core into saturation at the maximum duty cycle of 80%. ## Protection set and supply range On-chip fault protection covers current limiting, over-temperature, over-voltage, and short-circuit — no external sense resistor or comparator needed for basic protection.","metaTitle":"VIPER011LSTR 800 V 7 W offline switching regulator, 60 kHz","metaDescription":"ST VIPER011LSTR offline switching regulator: 800 V breakdown, 7 W power, 60 kHz fixed frequency, buck/buck-boost/flyback. Active lifecycle, 10-SSOP package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"STMicroelectronics","Series":"-","Package":"Tape & Reel (TR) Cut Tape (CT)","Topology":"Buck, Buck-Boost, Flyback","Duty Cycle":"80%","Mounting Type":"Surface Mount","Power (Watts)":"7 W","Package / Case":"10-SOP (0.154\\\", 3.90mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","Control Features":"-","Fault Protection":"Current Limiting, Over Temperature, Over Voltage, Short Circuit","Output Isolation":"Either","Internal Switch(s)":"Yes","Voltage - Start Up":"8 V","Base Product Number":"VIPER011","Voltage - Breakdown":"800V","Frequency - Switching":"60kHz","Operating Temperature":"-40°C ~ 150°C (TJ)","Supplier Device Package":"10-SSOP","Voltage - Supply (Vcc/Vdd)":"4.5V ~ 30V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.1500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/99ef2492c91e30fa0a8b588962621562.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/VIPER011LSTR/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to VIPER011LSTR?","answer":"The VIPER011 base product number shares the same footprint across density variants, but a direct pin-compatible substitute from another manufacturer is not confirmed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/VIPER011LSTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/VIPER011LSTR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}