{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MC34063ADRJR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MC34063ADRJR","canonicalUrl":"https://icboms.com/texas-instruments/MC34063ADRJR","factsUrl":"https://icboms.com/api/mcp/products/MC34063ADRJR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MC34063ADRJR, adjustable buck/boost switching regulator, 1.5A switch, 100kHz, 8-WDFN exposed pad","salesMarkdown":"## 1.5A switch, buck or boost, 8-SON package The MC34063ADRJR is a 1.5A switch-current adjustable regulator from Texas Instruments that can be configured as a step-down (buck) or step-up (boost) converter, covering positive or negative output rails from a single 3V to 40V input supply. Switching at 100 kHz, the part keeps the external inductor and capacitor values moderate but not tiny — expect a 47–100 µH inductor and a 100–470 µF output cap for a typical 5V/1A buck design. The 8-WDFN exposed pad package (8-SON 4x4 mm) helps pull heat from the switch junction into the PCB copper pour, which matters when the switch is running near its 1.5A ceiling. ## 40V input ceiling, 1.25V adjustable output floor Input range spans 3V minimum to 40V maximum, so the part can regulate from a 5V USB rail or a 24V industrial bus without an extra pre-regulator. Output is adjustable from a 1.25V reference up to 40V (switch rating), covering common logic rails (3.3V, 5V, 12V) and higher voltages for relays or solenoids. No synchronous rectifier is built in — the external Schottky diode carries the catch current, so its forward drop and thermal rating need to be factored into the efficiency and PCB layout. ## Active production, commercial temperature grade Available in Tape & Reel (TR) and Cut Tape (CT) options for the 8-WDFN package, supporting both prototype and production-volume assembly.","metaTitle":"MC34063ADRJR Buck Boost Regulator 1.5A 8-SON TI","metaDescription":"Texas Instruments MC34063ADRJR adjustable buck/boost switching regulator, 1.5A switch, 100kHz, 8-WDFN exposed pad. Active production, ROHS3. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Step-Up, Step-Down","Topology":"Buck, Boost","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"8-WDFN Exposed Pad","Product Status":"Active","lifecycle_stage":"eol_hot","Current - Output":"1.5A (Switch)","Number of Outputs":"1","Base Product Number":"MC34063","Output Configuration":"Positive or Negative","Frequency - Switching":"100kHz","Operating Temperature":"0°C~70°C(TA)","Synchronous Rectifier":"No","Voltage - Input (Max)":"40V","Voltage - Input (Min)":"3V","Voltage - Output (Max)":"40V (Switch)","Supplier Device Package":"8-SON (4x4)","Voltage - Output (Min/Fixed)":"1.25V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7500","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.75000","currency":"USD"},{"qty":10,"price":"$0.66300","currency":"USD"},{"qty":25,"price":"$0.62240","currency":"USD"},{"qty":100,"price":"$0.50800","currency":"USD"},{"qty":250,"price":"$0.47188","currency":"USD"},{"qty":500,"price":"$0.40160","currency":"USD"},{"qty":1000,"price":"$0.32127","currency":"USD"},{"qty":2000,"price":"$0.29116","currency":"USD"},{"qty":5000,"price":"$0.28414","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/4e044b587f1f11d06da1dc60b5c13058.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can MC34063ADRJR be used in a boost topology?","answer":"Yes, the part supports both buck and boost topologies. The datasheet shows a typical boost circuit generating 5V at 500 mA from a 3V input, though the 1.5A switch current limits the output at higher step-up ratios."},{"question":"What is the closest functional second-source for MC34063ADRJR?","answer":"The LMS3655MQURNLRQ1 is a higher-current (5.5A) automotive-grade buck converter with a 400 kHz switching frequency, but it is not a pin-compatible drop-in — it uses a different package and lacks boost capability. For a direct parametric match within the same family, stick with the MC34063A series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MC34063ADRJR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MC34063ADRJR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}