{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TLS205B0LDVXUMA1","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"TLS205B0LDVXUMA1","canonicalUrl":"https://icboms.com/infineon/TLS205B0LDVXUMA1","factsUrl":"https://icboms.com/api/mcp/products/TLS205B0LDVXUMA1","rawCanonicalId":null},"summary":{"shortDescription":"Infineon OPTIREG™ TLS205B0LDVXUMA1 automotive LDO, adjustable positive output, 500 mA, 65 dB PSRR at 120 Hz, AEC-Q100 Grade 1, PG-TSON-10 exposed pad.","salesMarkdown":"## Automotive LDO for noise-sensitive rails The Infineon TLS205B0LDVXUMA1 is an adjustable positive-output LDO from the OPTIREG™ family, delivering 500 mA continuous output with a 65 dB PSRR at 120 Hz. That ripple rejection keeps the downstream rail clean when fed from a switching pre-regulator or a battery line with alternator noise — the 65 dB figure means the output ripple is roughly 0.06% of the input ripple at that frequency, which matters for powering analog sensor front-ends or CAN transceivers in an automotive ECU. An engine control unit or transmission controller that sees 105°C ambient on a hot day still has thermal margin before the LDO enters its over-temperature shutdown. ## Dropout, quiescent, and protection Maximum dropout is 0.45 V at the full 500 mA load. In a 5 V to 3.3 V conversion the headroom is 1.7 V — plenty. In a battery-to-3.3 V rail where the input dips to 4.0 V during cold crank, the dropout headroom shrinks to 0.7 V, still above the 0.45 V ceiling, so the output stays in regulation. Quiescent current is 60 µA typical. For an always-on module in a body controller — a door module or seat ECU that draws 5 mA in sleep — the LDO's own consumption adds 1.2% to the sleep budget, negligible for the battery drain target. Built-in protection covers over-current, over-temperature, and reverse polarity. The reverse polarity clamp means the LDO survives a battery misconnection without an external Schottky in series — one less diode drop in the power path. ## PG-TSON-10 package and board integration Housed in a 10-lead TFDFN with exposed pad (PG-TSON-10), the thermal path runs through the pad into the PCB copper. The datasheet's RthJA figure assumes a certain pad area — a 4-layer board with thermal vias under the pad pulls the junction temperature down by 20-30°C compared to a 2-layer board with minimal copper. The Enable pin allows the LDO to be gated by a GPIO from the MCU, cutting the 60 µA quiescent draw to near zero in deep-sleep states. Output voltage is adjustable via an external resistor divider from 1.22 V up to 20 V — the same BOM position can serve a 1.8 V MCU core rail or a 5 V sensor supply by swapping two resistors.","metaTitle":"Infineon TLS205B0LDVXUMA1 LDO, 500mA, 65dB PSRR, AEC-Q100","metaDescription":"Infineon TLS205B0LDVXUMA1 OPTIREG™ LDO, 500mA output, 65dB PSRR at 120Hz, AEC-Q100 Grade 1, -40 to 125°C. Active production, ROHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100, OPTIREG™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"PSRR":"65dB (120Hz)","Series":"Automotive, AEC-Q100, OPTIREG™","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"10-TFDFN Exposed Pad","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"500mA","Protection Features":"Over Current, Over Temperature, Reverse Polarity","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C (TJ)","Voltage - Input (Max)":"20V","Voltage Dropout (Max)":"0.45V @ 500mA","Current - Supply (Max)":"31 mA","Voltage - Output (Max)":"20V","Supplier Device Package":"PG-TSON-10","Current - Quiescent (Iq)":"60 µA","Voltage - Output (Min/Fixed)":"1.22V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.74","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.74000","currency":"USD"},{"qty":10,"price":"$1.56300","currency":"USD"},{"qty":25,"price":"$1.47480","currency":"USD"},{"qty":100,"price":"$1.25660","currency":"USD"},{"qty":250,"price":"$1.17992","currency":"USD"},{"qty":500,"price":"$1.03242","currency":"USD"},{"qty":1000,"price":"$0.89775","currency":"USD"},{"qty":5000,"price":"$0.89775","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/34aa153ea916ff9f7816e391d12acc53.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the PSRR of the TLS205B0LDVXUMA1 and why does it matter?","answer":"The PSRR is 65 dB at 120 Hz. That means the LDO attenuates ripple on its input by a factor of roughly 1,800 at that frequency — a 100 mVpp ripple on the battery line becomes about 56 µVpp on the output. For powering a 12-bit ADC reference or a CAN transceiver, that level of rejection prevents the switching noise from coupling into the signal chain."},{"question":"What compliance documentation is available for TLS205B0LDVXUMA1?","answer":"The part is ROHS3 compliant. Infineon provides the standard compliance documentation including the REACH declaration and material composition data through their product portal. No UL or IEC certification is listed on this specific order code."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/TLS205B0LDVXUMA1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/TLS205B0LDVXUMA1 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}}