{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"VIPER0PHDTR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"VIPER0PHDTR","canonicalUrl":"https://icboms.com/stmicroelectronics/VIPER0PHDTR","factsUrl":"https://icboms.com/api/mcp/products/VIPER0PHDTR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics VIPer plus series, VIPER0PHDTR offline switching regulator, 800V breakdown, 12W output, 120kHz switching frequency, flyback/buck/buck-boost topology, 16-SOIC package, -40°C to 150°C junction temperature.","salesMarkdown":"## 800 V avalanche-rugged power stage in an SO-16 The STMicroelectronics VIPER0PHDTR is an offline switching regulator from the VIPer plus family that integrates an 800 V avalanche-rugged power MOSFET and PWM controller in a 16-SOIC package. It targets auxiliary and bias supplies up to 12 W — think appliance control boards, metering PSUs, and industrial AC-DC rails where board space and BOM count are tight. ## 120 kHz fixed frequency — transformer sizing The fixed 120 kHz switching frequency is a practical choice for compact flyback transformers: it keeps the core volume small while staying below the point where snubber losses and EMI filtering start eating the efficiency gain. At 12 W output, a standard RM8 or EFD20 core with the right primary inductance will hit the power target without over-designing the magnetics. ## Fault protections that save external parts On-chip fault protection covers current limiting, over-load, over-temperature, and short circuit — all handled without an external sense resistor or comparator. That means the BOM stays lean: the VIPER0PHDTR can run with just the input bulk cap, startup resistor, transformer, output diode, and a few passives.","metaTitle":"VIPER0PHDTR STMicro VIPer plus Offline Switching Regulator","metaDescription":"STMicro VIPER0PHDTR offline switching regulator: 800V breakdown, 12W, 120kHz, flyback/buck. 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™ plus","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":"16-SOIC (0.154\\\", 3.90mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","Control Features":"-","Fault Protection":"Current Limiting, Over Load, Over Temperature, Short Circuit","Output Isolation":"Either","Internal Switch(s)":"Yes","Voltage - Start Up":"8 V","Base Product Number":"VIPER0","Voltage - Breakdown":"800V","Frequency - Switching":"120kHz","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":"$1.5700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ccae250ee1a12751689f39365218b389.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/VIPER0PHDTR/alternatives.json"},"ai":{"faq":[{"question":"Does VIPER0PHDTR require an external MOSFET?","answer":"No. The VIPER0PHDTR integrates the power switch internally — just add the transformer, input/output capacitors, and a startup resistor for a complete offline supply."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/VIPER0PHDTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/VIPER0PHDTR 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}}