{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MC34063ABD-TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"MC34063ABD-TR","canonicalUrl":"https://icboms.com/stmicroelectronics/MC34063ABD-TR","factsUrl":"https://icboms.com/api/mcp/products/MC34063ABD-TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics MC34063ABD-TR, a monolithic switching regulator IC supporting step-up, step-down, and inverting topologies, 1.5 A switch current, adjustable output from 1.25 V to 38 V, 33 kHz switching frequency, in an 8-SOIC package.","salesMarkdown":"## What the 1.5 A switch and 33 kHz mean for your rail The MC34063ABD-TR integrates a 1.5 A switch transistor — that's the peak current the internal transistor can handle, not the continuous output current. The 33 kHz switching frequency keeps the switching losses low enough that the part doesn't need a heatsink at moderate loads, but it forces you into a larger inductor than a modern higher-frequency part would. Synchronous rectification is not supported, which means the diode forward drop eats into efficiency at low output voltages; a Schottky diode external is standard practice. ## Input range and temperature grade — where it fits The input voltage range spans 3 V to 40 V, covering a wide variety of logic rails and industrial supplies. Keep the copper area under the IC generous on the PCB to help dissipate the heat from the internal switch.","metaTitle":"MC34063ABD-TR Buck-Boost Regulator 1.5A SOIC-8","metaDescription":"MC34063ABD-TR from STMicroelectronics — step-up/step-down DC-DC converter, 1.5 A switch, 33 kHz, adjustable output, -40°C to 85°C, SOIC-8.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"STMicroelectronics","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-SOIC (0.154\\\", 3.90mm Width)","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":"33kHz","Operating Temperature":"-40°C~85°C(TA)","Synchronous Rectifier":"No","Voltage - Input (Max)":"40V","Voltage - Input (Min)":"3V","Voltage - Output (Max)":"38V","Supplier Device Package":"8-SOIC","Voltage - Output (Min/Fixed)":"1.25V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9100","priceTiers":[{"qty":1,"price":"$0.91000","currency":"USD"},{"qty":10,"price":"$0.81600","currency":"USD"},{"qty":25,"price":"$0.77400","currency":"USD"},{"qty":100,"price":"$0.63580","currency":"USD"},{"qty":250,"price":"$0.59436","currency":"USD"},{"qty":500,"price":"$0.52526","currency":"USD"},{"qty":1000,"price":"$0.45640","currency":"USD"},{"qty":2500,"price":"$0.45640","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/ded0e68a4eca5ee7ff197c1dcca2753c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MC34063ABD-TR/alternatives.json"},"ai":{"faq":[{"question":"Can MC34063ABD-TR be used for a 5V boost converter?","answer":"Yes. With a 3 V to 40 V input range and adjustable output down to 1.25 V, a 5 V boost is straightforward. The 1.5 A switch limits practical output current to roughly 600–800 mA depending on input voltage and inductor selection — size the inductor for 33 kHz operation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/MC34063ABD-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/MC34063ABD-TR 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}}