{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TS419IST","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"TS419IST","canonicalUrl":"https://icboms.com/stmicroelectronics/TS419IST","factsUrl":"https://icboms.com/api/mcp/products/TS419IST","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics TS419IST, Class AB audio amplifier, 1-channel (mono), 367mW output into 16Ω, 2V to 5.5V supply, -40°C to 85°C, 8-MiniSO package.","salesMarkdown":"## 367 mW into 16 Ω — where this amp fits That output level lands it squarely in headphone-driver or small-speaker territory — think portable audio, voice prompts in industrial panels, or battery-powered notification buzzers. The differential input architecture rejects common-mode noise picked up on long signal traces, and the standby pin lets the system cut quiescent draw when audio is idle. ## Package and footprint The package is compatible with standard 8-pin TSSOP and MSOP footprints. No exposed pad to worry about — thermal dissipation is through the leads, so keep the copper pour on the output pins generous if driving near the 367 mW limit continuously. ## Lifecycle and compliance The ROHS3 status covers the current exemption list, so no re-qualification needed for EU-market builds.","metaTitle":"STMicro TS419IST Class AB Audio Amp, 367mW, 8-MiniSO","metaDescription":"STMicroelectronics TS419IST Class AB audio amplifier, 367mW into 16Ω, 2V-5.5V supply, industrial temp. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Type":"Class AB","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Differential Inputs, Short-Circuit Protection, Standby","Output Type":"1-Channel (Mono)","Mounting Type":"Surface Mount","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 5.5V","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-MiniSO","Max Output Power x Channels @ Load":"367mW x 1 @ 16Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.41","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.41000","currency":"USD"},{"qty":10,"price":"$1.26500","currency":"USD"},{"qty":25,"price":"$1.20040","currency":"USD"},{"qty":100,"price":"$0.98610","currency":"USD"},{"qty":250,"price":"$0.92180","currency":"USD"},{"qty":500,"price":"$0.81462","currency":"USD"},{"qty":1000,"price":"$0.64312","currency":"USD"},{"qty":4000,"price":"$0.60024","currency":"USD"},{"qty":8000,"price":"$0.57023","currency":"USD"},{"qty":12000,"price":"$0.54879","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/e2f1aec6fca7c2b8d6b364fd0e1b04d9.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the maximum output power for TS419IST?","answer":"The TS419IST delivers 367 mW into a 16 Ω load from a single supply. That is the rated maximum per channel (mono output)."},{"question":"Is TS419IST compatible with a 3.3 V supply?","answer":"Yes — the supply range is 2 V to 5.5 V, so 3.3 V is well within the operating window."},{"question":"What is the equivalent of TS419IST?","answer":"The closest functional peer in the same Class AB, mono, surface-mount family is the TS4990IDT, which delivers 1.2 W into 8 Ω — a higher-power sibling. For a lower-power stereo headphone amp, the TS482IDT (107 mW per channel) is an alternative. Neither is a drop-in replacement; verify the pinout and external component count from the respective datasheets."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/TS419IST","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/TS419IST when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T11:11:23.523Z","lastPublished":"2026-07-16T11:11:23.523Z","indexable":true}}