{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MC33063AP","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MC33063AP","canonicalUrl":"https://icboms.com/texas-instruments/MC33063AP","factsUrl":"https://icboms.com/api/mcp/products/MC33063AP","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments MC33063AP, 8-DIP, adjustable buck-boost regulator, 1.5A switch, 100kHz, -40°C to 85°C","salesMarkdown":"## Buck-boost in an 8-pin DIP – legacy workhorse The MC33063AP is a 1.5A (switch) adjustable buck-boost regulator from Texas Instruments, packaged in an 8-DIP (0.300-inch, 7.62mm) through-hole package. It accepts an input from 3V to 40V and can produce a positive or negative adjustable output down to 1.25V (minimum) or up to 40V (switch limit). The 100kHz switching frequency is fixed — no external sync or frequency foldback — which simplifies the inductor selection but limits the minimum practical output ripple filter size compared to modern 400kHz+ parts. Confirm the board footprint and the mating socket or solder-hole pattern before committing. The 1.5A switch current rating is the peak current the internal transistor can handle; the actual output current depends on the topology (buck vs boost), input-output differential, and inductor ripple. For a typical 12V-to-5V buck conversion, expect around 0.5–0.8A continuous output before the switch current limit is reached. No synchronous rectifier is integrated, so the freewheeling diode must be added externally — a Schottky with adequate reverse voltage and forward current rating. This adds a diode drop to the conduction loss, which matters at low output voltages. The adjustable output is set by two external resistors; the internal reference is 1.25V. The output can be configured for positive or negative regulation, which is useful for generating a -5V rail from a positive input in legacy mixed-signal boards. ## Package and mounting – through-hole reality The 8-DIP package (0.300-inch body width, 7.62mm) is a standard through-hole footprint. No exposed pad or thermal slug — heat is dissipated through the leads and the copper traces on the PCB. The Tube shipping format is typical for through-hole DIPs; no tape-and-reel option is listed. For automated insertion, a tube-fed handler is required.","metaTitle":"MC33063AP Buck-Boost Regulator – Obsolete, Sourcing via RFQ","metaDescription":"Texas Instruments MC33063AP 1.5A adjustable buck-boost regulator in 8-DIP. Industrial temp range.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Obsolete","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tube","Function":"Step-Up, Step-Down","Topology":"Buck, Boost","Output Type":"Adjustable","Mounting Type":"Through Hole","Package / Case":"8-DIP (0.300\\\", 7.62mm)","Product Status":"Active","lifecycle_stage":"eol_hot","Current - Output":"1.5A (Switch)","Number of Outputs":"1","Base Product Number":"MC33063","Output Configuration":"Positive or Negative","Frequency - Switching":"100kHz","Operating Temperature":"-40°C~85°C(TA)","Synchronous Rectifier":"No","Voltage - Input (Max)":"40V","Voltage - Input (Min)":"3V","Voltage - Output (Max)":"40V (Switch)","Supplier Device Package":"8-PDIP","Voltage - Output (Min/Fixed)":"1.25V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9200","priceTiers":[{"qty":1,"price":"$0.92000","currency":"USD"},{"qty":10,"price":"$0.82200","currency":"USD"},{"qty":25,"price":"$0.78040","currency":"USD"},{"qty":100,"price":"$0.64120","currency":"USD"},{"qty":250,"price":"$0.59936","currency":"USD"},{"qty":500,"price":"$0.52968","currency":"USD"},{"qty":1000,"price":"$0.41817","currency":"USD"},{"qty":2500,"price":"$0.39450","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/4e044b587f1f11d06da1dc60b5c13058.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MC33063AP/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MC33063AP","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MC33063AP 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}}