{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TLE4470GS","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"TLE4470GS","canonicalUrl":"https://icboms.com/infineon/TLE4470GS","factsUrl":"https://icboms.com/api/mcp/products/TLE4470GS","rawCanonicalId":null},"summary":{"shortDescription":"Infineon TLE4470GS Automotive AEC-Q100 dual LDO regulator, 180mA/350mA output, 5V fixed/tracking, 45V input max, 60dB PSRR, PG-DSO-14 package.","salesMarkdown":"## Dual-output LDO with 150°C junction rating The Infineon TLE4470GS is a dual-output positive LDO regulator delivering a 180 mA and a 350 mA rail from a single 45 V max input. Both outputs are adjustable, with a 5 V fixed/tracking configuration on the primary channel — the secondary channel tracks the primary or can be set independently. The 0.5 V dropout at 100 mA and 0.6 V at 200 mA keep the output regulated down to a headroom of a few hundred millivolts, which matters when the battery rail sags during engine cranking. ## What AEC-Q100 grade 0 means for underhood duty Grade 0 means it is certified for the hottest underhood locations — engine control units, transmission controllers, or direct-on-engine sensors — where ambient temperatures regularly exceed 125°C. The 150°C TJ rating gives thermal margin above the 140°C typical absolute-max for grade-1 parts; a hot soak on a summer day after a hard drive still leaves the regulator inside its design envelope. ## Protection and supply quality for a 24V nominal bus The TLE4470GS includes over-temperature, reverse polarity, and short-circuit protection — the three fault modes a regulator sees on an automotive power bus before the load. Reverse polarity protection blocks current when the battery is accidentally reversed, and the short-circuit foldback limits output current during a rail-to-ground fault. The quiescent current sits at 500 µA typical, which keeps the parasitic draw off the battery in key-off standby below the OEM's dark-current budget. ## PSRR and noise rejection in the audio band The power-supply rejection ratio is specified at 60 dB across 20 Hz to 20 kHz — the full audio band. For a regulator feeding an infotainment DSP or a CAN transceiver, this means the 60 dB of attenuation knocks a 1 Vpp ripple on the battery rail down to 1 mVpp at the output. The flat PSRR profile across the band avoids the resonant peaking some LDOs show at switching frequencies. ## Package and pinout for the PG-DSO-14 footprint Supplied in the PG-DSO-14 package — the Infineon standard for the 14-lead SOIC wide-body (3.90 mm body width). The exposed paddle on the bottom side conducts heat to the PCB copper plane; a 2 cm² pad on the inner layer drops the thermal resistance enough to stay below the 150°C junction limit at full load. The Enable and Reset control pins allow sequencing of the two output rails — the Reset pin pulls low when either output drops below regulation, giving the system MCU a power-good interrupt.","metaTitle":"Infineon TLE4470GS Dual LDO Regulator, 350mA, AEC-Q100","metaDescription":"Infineon TLE4470GS dual-output LDO regulator, 180mA/350mA, 5V tracking output. Active production, AEC-Q100 qualified, -40°C to +150°C junction. Quoted to order.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100","packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"PSRR":"60dB (20Hz ~ 20kHz), 60dB (20Hz ~ 20kHz)","Series":"Automotive, AEC-Q100","Package":"Bulk","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"14-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Control Features":"Enable, Reset","Current - Output":"180mA, 350mA","Protection Features":"Over Temperature, Reverse Polarity, Short Circuit","Number of Regulators":"2","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 150°C (TJ)","Voltage - Input (Max)":"45V","Voltage Dropout (Max)":"0.5V @ 100mA, 0.6V @ 200mA","Current - Supply (Max)":"15 mA","Voltage - Output (Max)":"20V","Supplier Device Package":"PG-DSO-14","Current - Quiescent (Iq)":"500 µA","Voltage - Output (Min/Fixed)":"5V, (5V), Tracking"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.05","stockQuantity":0,"priceTiers":[{"qty":366,"price":"$1.05000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a0dd06c7dfdd20e11358b146541248d1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What protection features does the TLE4470GS include?","answer":"The regulator integrates over-temperature shutdown, reverse polarity blocking, and short-circuit current foldback. These cover the three common failure modes on an automotive power bus — a reversed battery connection, a rail-to-ground short, or a thermal runaway condition in the pass element."},{"question":"Where can I find the TLE4470GS datasheet or compliance documents?","answer":"The TLE4470GS is a standard Infineon automotive product with AEC-Q100 qualification documentation available from the manufacturer. RoHS and REACH compliance are standard for Infineon's automotive LDO portfolio. The part carries no UL or IEC certification listed in the product record."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/TLE4470GS","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/TLE4470GS 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}}