{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"VIPER06LSTR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"VIPER06LSTR","canonicalUrl":"https://icboms.com/stmicroelectronics/VIPER06LSTR","factsUrl":"https://icboms.com/api/mcp/products/VIPER06LSTR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics VIPER06LSTR, VIPer™ plus series, offline switching regulator, 8 W output, 800 V breakdown, 60 kHz switching frequency, buck/flyback topology, 10-SSOP package, active production.","salesMarkdown":"## 8 W offline switcher with 800 V avalanche-rugged MOSFET The VIPER06LSTR integrates a 800 V breakdown power MOSFET and a PWM controller in a single 10-SSOP package, delivering up to 8 W in buck or flyback configurations. The 60 kHz switching frequency keeps the transformer or inductor physically small while staying below the conducted-emission limits that plague higher-frequency designs in appliance and industrial auxiliary supplies. The 13 V start-up threshold and 11.5 V to 23.5 V supply range cover the common bias rails in off-line converters. ## Fault protection set for unattended or enclosed operation Built-in current limiting, open-loop detection, and over-temperature shutdown protect the converter against output short circuits, feedback failures, and thermal runaway. Output isolation is configurable as either isolated or non-isolated, so the same MPN can serve a flyback with an optocoupler or a simple buck without a feedback transformer. This flexibility reduces the number of unique BOM lines across a product family. ## Active production — no imminent end-of-life risk ## Package and footprint — 10-SSOP with 0.154-inch body width The 0.50 mm lead pitch requires a controlled solder-paste stencil aperture to avoid bridging, but the package is widely supported by assembly houses. No exposed thermal pad is present; junction-to-ambient thermal resistance is managed through the copper area on the PCB.","metaTitle":"VIPER06LSTR – STMicro VIPer™ plus Offline Switcher, 8 W","metaDescription":"STMicroelectronics VIPER06LSTR offline switching regulator, 8 W output, 800 V breakdown, 60 kHz, buck/flyback, 10-SSOP, active production. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":"VIPer™ plus","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"STMicroelectronics","Series":"VIPer™ plus","Package":"Tape & Reel (TR) Cut Tape (CT)","Topology":"Buck, Flyback","Duty Cycle":"70%","Mounting Type":"Surface Mount","Power (Watts)":"8 W","Package / Case":"10-SOP (0.154\\\", 3.90mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","Control Features":"-","Fault Protection":"Current Limiting, Open Loop, Over Temperature","Output Isolation":"Either","Internal Switch(s)":"Yes","Voltage - Start Up":"13 V","Base Product Number":"VIPER06","Voltage - Breakdown":"800V","Frequency - Switching":"60kHz","Operating Temperature":"-40°C ~ 150°C (TJ)","Supplier Device Package":"10-SSOP","Voltage - Supply (Vcc/Vdd)":"11.5V ~ 23.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.0700","priceTiers":[{"qty":1,"price":"$1.07000","currency":"USD"},{"qty":10,"price":"$0.95800","currency":"USD"},{"qty":25,"price":"$0.90920","currency":"USD"},{"qty":100,"price":"$0.74680","currency":"USD"},{"qty":250,"price":"$0.69812","currency":"USD"},{"qty":500,"price":"$0.61696","currency":"USD"},{"qty":1000,"price":"$0.48707","currency":"USD"},{"qty":2500,"price":"$0.45460","currency":"USD"},{"qty":5000,"price":"$0.43187","currency":"USD"},{"qty":12500,"price":"$0.41564","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/b5b2c19c0f8f1a044dd97da294dd4af6.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/VIPER06LSTR/alternatives.json"},"ai":{"faq":[{"question":"Is VIPER06LSTR a drop-in replacement for VIPER06LS?","answer":"The VIPER06LSTR and VIPER06LS share the same die (VIPER06), same 8 W power rating, same 70% duty cycle, and same 60 kHz switching frequency. The difference is the package delivery: VIPER06LSTR is supplied on tape and reel (suitable for pick-and-place), while VIPER06LS comes in tube. Electrically they are identical, so a BOM swap requires only a change in the feeder setup, not a board layout revision."},{"question":"What is the maximum output power for VIPER06LSTR?","answer":"The device is rated for 8 W output in a typical flyback or buck converter. The actual achievable power depends on the input voltage range, transformer design, ambient temperature, and PCB copper area for heat sinking. At high line (230 VAC) and with adequate thermal management, the 8 W ceiling is reachable; at low line (85 VAC) the available power may be lower due to increased RMS currents in the MOSFET."},{"question":"Is VIPER06LSTR compatible with both buck and flyback topologies?","answer":"Yes, the VIPER06LSTR supports both buck and flyback topologies. The internal control logic and 70% duty cycle are optimised for discontinuous-mode flyback and buck converters. The output isolation can be configured as either isolated (flyback with optocoupler) or non-isolated (buck), giving the designer flexibility without changing the IC."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/VIPER06LSTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/VIPER06LSTR 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}}