{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TLS850B0TEV33ATMA1","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"TLS850B0TEV33ATMA1","canonicalUrl":"https://icboms.com/infineon/TLS850B0TEV33ATMA1","factsUrl":"https://icboms.com/api/mcp/products/TLS850B0TEV33ATMA1","rawCanonicalId":null},"summary":{"shortDescription":"Infineon OPTIREG™ TLS850B0TEV33ATMA1 linear voltage regulator, fixed 3.3 V output, 500 mA, AEC-Q100, TO-252-5 DPAK, surface mount.","salesMarkdown":"## Automotive-grade 3.3 V rail for engine-control and body-electronics power The Infineon TLS850B0TEV33ATMA1 is a fixed-output linear regulator from the OPTIREG™ family, delivering 3.3 V at up to 500 mA from a 40 V maximum input rail. The AEC-Q100 qualification places it in the -40°C to 150°C junction temperature band — the full under-hood and engine-bay ambient range. A 25 µA quiescent current keeps the regulator's own draw low enough that a continuously-powered ECU module does not drain the battery during key-off periods. ## Dropout headroom and PSRR for noise-sensitive loads Maximum dropout voltage is 0.6 V at 250 mA — the input rail must stay at least 0.6 V above 3.3 V across the full load range to maintain regulation. For a nominal 5 V supply, that leaves 1.1 V of headroom; a 3.3 V rail derived from a 3.8 V battery near end-of-discharge still has 0.5 V margin. The 63 dB PSRR at 100 Hz attenuates alternator ripple and switching-converter feedthrough by a factor of roughly 1400 — sufficient for analog sensor supply rails in an engine management unit. ## Enable control and protection for fault-tolerant system design An Enable pin allows the regulator output to be gated by a system supervisor or ignition signal — the output stays off until the enable threshold is crossed, preventing unpowered loads from back-driving the rail during startup sequencing. ## TO-252-5 DPAK package and board-level integration The PG-TO252-5 package is a 4-lead DPAK with an exposed tab — the tab is the ground path and the primary heat sink.","metaTitle":"TLS850B0TEV33ATMA1 OPTIREG LDO, 3.3V 500mA, AEC-Q100","metaDescription":"Infineon TLS850B0TEV33ATMA1 OPTIREG linear regulator, fixed 3.3V output, 500mA, 40V input max, AEC-Q100, active production. Quoted to order.","metaKeywords":null},"attributes":{"series":"OPTIREG™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"PSRR":"63dB (100Hz)","Grade":"Automotive","Series":"OPTIREG™","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Qualification":"AEC-Q100","Package / Case":"TO-252-5, DPAK (4 Leads + Tab), TO-252AD","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"500mA","Protection Features":"Over Current, Over Temperature","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 150°C (TJ)","Voltage - Input (Max)":"40V","Voltage Dropout (Max)":"0.6V @ 250mA","Current - Supply (Max)":"33 µA","Supplier Device Package":"PG-TO252-5","Current - Quiescent (Iq)":"25 µA","Voltage - Output (Min/Fixed)":"3.3V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.5","priceTiers":[{"qty":1,"price":"$1.50000","currency":"USD"},{"qty":10,"price":"$1.34300","currency":"USD"},{"qty":25,"price":"$1.26720","currency":"USD"},{"qty":100,"price":"$1.07950","currency":"USD"},{"qty":250,"price":"$1.01364","currency":"USD"},{"qty":500,"price":"$0.88694","currency":"USD"},{"qty":1000,"price":"$0.73489","currency":"USD"},{"qty":2500,"price":"$0.68420","currency":"USD"},{"qty":5000,"price":"$0.65886","currency":"USD"},{"qty":12500,"price":"$0.63352","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/69cc5b1e7a409a80ad88b343b160d7ed.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TLS850B0TEV33ATMA1/alternatives.json"},"ai":{"faq":[{"question":"What is TLS850B0TEV33ATMA1's listed PSRR?","answer":"The power supply rejection ratio is 63 dB at 100 Hz. This means ripple on the input rail at 100 Hz — the fundamental frequency of a full-wave rectified 50 Hz mains or alternator output — is attenuated by a factor of approximately 1400 before reaching the output."},{"question":"What compliance documentation does Infineon provide for TLS850B0TEV33ATMA1?","answer":"The part is RoHS3 compliant. Infineon typically provides a RoHS certificate of compliance and a REACH declaration upon request through the distribution channel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/TLS850B0TEV33ATMA1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/TLS850B0TEV33ATMA1 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}}