{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"VIPER318XDTR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"VIPER318XDTR","canonicalUrl":"https://icboms.com/stmicroelectronics/VIPER318XDTR","factsUrl":"https://icboms.com/api/mcp/products/VIPER318XDTR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics VIPER™ series, VIPER318XDTR, offline switching regulator, 1 W output, 800 V breakdown, 30 kHz switching frequency, 16-SOIC package, -40°C to 150°C junction temperature.","salesMarkdown":"## Offline switcher for 1 W auxiliary supplies The STMicroelectronics VIPER318XDTR is a monolithic offline switching regulator from the VIPER™ series, integrating an 800 V breakdown MOSFET and a PWM controller in a 16-SOIC package. It delivers up to 1 W in non-isolated topologies including buck, boost, buck-boost, and flyback. The 30 kHz fixed switching frequency keeps transformer size small for low-power auxiliary supplies, while the built-in soft start limits inrush at power-up. ## Protection suite and operating range Fault protection covers over load, over temperature, over voltage, and short circuit — the part shuts down cleanly rather than letting the winding saturate or the junction exceed 150°C. The Vcc supply range spans 4.5 V to 30 V, with an 8 V startup threshold that ensures reliable turn-on from a charged bulk cap.","metaTitle":"STMicroelectronics VIPER318XDTR Offline Switcher, 1 W, 800 V","metaDescription":"VIPER318XDTR from STMicroelectronics VIPER series. 1 W output, 800 V breakdown, 30 kHz switching. Active production.","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":"Boost, Buck, Buck-Boost, Flyback","Duty Cycle":"-","Mounting Type":"Surface Mount","Power (Watts)":"1 W","Package / Case":"16-SOIC (0.154\\\", 3.90mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","Control Features":"Soft Start","Fault Protection":"Over Load, Over Temperature, Over Voltage, Short Circuit","Output Isolation":"Non-Isolated","Internal Switch(s)":"Yes","Voltage - Start Up":"8 V","Base Product Number":"VIPER318","Voltage - Breakdown":"800V","Frequency - Switching":"30kHz","Operating Temperature":"-40°C~150°C(TJ)","Supplier Device Package":"16-SO","Voltage - Supply (Vcc/Vdd)":"4.5V ~ 30V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.7300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/19a0c69ed7a551ae486ae64c508726b7.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/VIPER318XDTR/alternatives.json"},"ai":{"faq":[{"question":"What topologies does the VIPER318XDTR support?","answer":"The VIPER318XDTR supports boost, buck, buck-boost, and flyback topologies, all in non-isolated configuration."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/VIPER318XDTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/VIPER318XDTR 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}}