{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LT1613CS5#TRPBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LT1613CS5~4TRPBF","canonicalUrl":"https://icboms.com/analog-devices/LT1613CS5~4TRPBF","factsUrl":"https://icboms.com/api/mcp/products/LT1613CS5%23TRPBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LT1613CS5#TRPBF, Boost/Flyback/SEPIC DC-DC converter, TSOT-23-5 package, 550mA switch, 1.4MHz, adjustable output, Tape & Reel.","salesMarkdown":"## TSOT-23-5 multi-topology switcher The LT1613CS5#TRPBF is a current-mode DC-DC converter from Analog Devices that handles boost, flyback, and SEPIC topologies from a single TSOT-23-5 package. It integrates a 550 mA switch and runs at a 1.4 MHz switching frequency, keeping external inductor and capacitor values small enough for compact, single-layer boards. Input range spans 0.9 V to 10 V, with an adjustable output that can go as high as 34 V. That 0.9 V minimum means it can start from a nearly depleted single-cell alkaline or a Li-ion battery near its end-of-discharge voltage. ## What the 550 mA switch rating means on the bench The 550 mA figure is the peak switch current limit, not the continuous output current. In a boost converter with a 3.3 V input and 5 V output at 200 mA load, the average inductor current sits around 330 mA — the switch sees that plus ripple. The 1.4 MHz switching frequency helps keep ripple low, so you can stay well inside the limit without oversizing the inductor. No synchronous rectifier means the catch diode is external. That diode's forward voltage and switching speed directly affect efficiency — a Schottky with a fast recovery is the usual pairing. The 1.4 MHz edge rate demands a diode with low junction capacitance to avoid ringing. That covers most indoor equipment, bench supplies, and battery-powered portable gear, but not automotive or outdoor enclosures without active cooling. ## Footprint and sourcing posture The TSOT-23-5 footprint is a common 5-pin SOT-23 derivative with a thinner body — 1.0 mm max seated height. The pad layout matches standard SOT-23-5 land patterns; no special thermal vias are required for most loads below 300 mA output.","metaTitle":"Analog Devices LT1613CS5#TRPBF Boost/Flyback/SEPIC","metaDescription":"Active production. Boost, flyback, SEPIC controller in TSOT-23-5. 550mA switch, 1.4MHz, adjustable output to 34V. ROHS3. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Step-Up, Step-Up/Step-Down","Topology":"Boost, Flyback, SEPIC","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"SOT-23-5 Thin, TSOT-23-5","lifecycle_stage":"eol_hot","Current - Output":"550mA (Switch)","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"1.4MHz","Operating Temperature":"0°C ~ 70°C (TA)","Synchronous Rectifier":"No","Voltage - Input (Max)":"10V","Voltage - Input (Min)":"0.9V","Voltage - Output (Max)":"34V","Supplier Device Package":"TSOT-23-5","Voltage - Output (Min/Fixed)":"1.23V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.96","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.96000","currency":"USD"},{"qty":10,"price":"$5.34800","currency":"USD"},{"qty":25,"price":"$5.05600","currency":"USD"},{"qty":100,"price":"$4.38200","currency":"USD"},{"qty":250,"price":"$4.15732","currency":"USD"},{"qty":500,"price":"$3.73036","currency":"USD"},{"qty":1000,"price":"$3.18000","currency":"USD"},{"qty":2500,"price":"$3.18000","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"How does LT1613CS5#TRPBF compare to LT1615ES5-1#TRPBF?","answer":"The LT1615ES5-1#TRPBF is a similar boost/SEPIC converter in the same TSOT-23-5 package, but its switch current limit is only 75 mA — roughly one-seventh of the 550 mA available on the LT1613. If your load needs more than 75 mA, the LT1613 is the right choice; for low-power bias rails the LT1615 may be cheaper. Both share the same pinout and topology set, so a board layout can often accept either with a component change."},{"question":"Where can I buy LT1613CS5#TRPBF and check pricing?","answer":"We source this active part through authorized and independent distribution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LT1613CS5~4TRPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LT1613CS5~4TRPBF 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}}