{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"VIPER113LSTR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"VIPER113LSTR","canonicalUrl":"https://icboms.com/stmicroelectronics/VIPER113LSTR","factsUrl":"https://icboms.com/api/mcp/products/VIPER113LSTR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics VIPER™ series VIPER113LSTR offline switching regulator, 12 W output, 800 V breakdown, 60 kHz switching frequency, buck/buck-boost/flyback topology, 10-SOP package, -40°C to 125°C junction temperature.","salesMarkdown":"## 12 W offline switcher with integrated 800 V MOSFET The STMicroelectronics VIPER113LSTR is an offline switching regulator from the VIPER™ series, integrating a power MOSFET and controller in a single 10-SOP package. It delivers up to 12 W in a flyback, buck, or buck-boost topology, switching at 60 kHz with an 80% maximum duty cycle. The integrated MOSFET is rated for 800 V breakdown, giving the part headroom for universal AC input (85–265 VAC) with margin for line transients. ## Industrial temperature grade and protection set On-chip fault protection covers current limiting, over-load, over-voltage, and short-circuit conditions. A soft-start feature reduces inrush stress on the output capacitor and the rectifier during power-up. The non-isolated output topology (no optocoupler feedback loop) simplifies the BOM and shrinks the board footprint, but the design must account for the primary-referenced output — the load shares the same ground as the switching node.","metaTitle":"STMicroelectronics VIPER113LSTR offline switcher, 12 W","metaDescription":"VIPER113LSTR offline switching regulator: 12 W output, 800 V breakdown, 60 kHz switching, buck/buck-boost/flyback.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"STMicroelectronics","Series":"VIPER™","Package":"Tape & Reel (TR); Cut Tape (CT)","Topology":"Buck, Buck-Boost, Flyback","Duty Cycle":"80%","Mounting Type":"Surface Mount","Power (Watts)":"12 W","Package / Case":"10-SOP (0.154\\\", 3.90mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","Control Features":"Soft Start","Fault Protection":"Current Limiting, Over Load, Over Voltage, Short Circuit","Output Isolation":"Non-Isolated","Internal Switch(s)":"Yes","Voltage - Start Up":"16 V","Base Product Number":"VIPER113","Voltage - Breakdown":"800V","Frequency - Switching":"60kHz","Operating Temperature":"-40°C~125°C(TJ)","Supplier Device Package":"10-SSOP","Voltage - Supply (Vcc/Vdd)":"4.5V ~ 30V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.5600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/70c47f40c5ce2bff38b9362cfb539e0d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/VIPER113LSTR/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum output power of VIPER113LSTR?","answer":"The VIPER113LSTR is rated for 12 W output power. This is the practical ceiling in a flyback topology at 60 kHz switching; actual achievable power depends on input voltage, transformer design, and thermal management in the end system."},{"question":"Is VIPER113LSTR isolated or non-isolated?","answer":"The VIPER113LSTR is a non-isolated topology. The output shares a common ground with the primary side. For isolated designs, an external transformer and optocoupler feedback loop would be needed, but this part is intended for non-isolated buck, buck-boost, or flyback converters."},{"question":"What fault protections does VIPER113LSTR include?","answer":"The part integrates current limiting, over-load protection, over-voltage protection, and short-circuit protection. A soft-start function is also included to control inrush during startup."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/VIPER113LSTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/VIPER113LSTR 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}}