{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MC34063ACN","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"MC34063ACN","canonicalUrl":"https://icboms.com/stmicroelectronics/MC34063ACN","factsUrl":"https://icboms.com/api/mcp/products/MC34063ACN","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics MC34063ACN, 8-DIP through-hole, adjustable step-up/step-down regulator, 1.5A switch, 33kHz switching frequency, 3V to 40V input range.","salesMarkdown":"The MC34063ACN integrates a 1.5 A switch transistor — this is the peak current the internal switch can handle, not the continuous output current. For a buck converter at 33 kHz, the output current depends on the input-to-output voltage differential and inductor ripple. The adjustable output from 1.25 V to 38 V with positive or negative configuration covers single-rail to split-rail supplies. The 3 V minimum input allows operation from a 3.3 V rail or two-cell battery; the 40 V maximum input suits 24 V industrial buses with margin. ## Through-hole 8-DIP — board integration and sourcing The 8-DIP through-hole package is a legacy footprint — it is easy to hand-assemble and rework, but the 0.300-inch row spacing occupies more board area than a surface-mount equivalent. Supplied in tube, typical reel quantities are not applicable. Do not use in automotive or industrial enclosures where ambient temperature exceeds 70°C without active cooling.","metaTitle":"MC34063ACN STMicroelectronics Step-Up/Step-Down Regulator","metaDescription":"MC34063ACN from STMicroelectronics: adjustable buck/boost regulator, 1.5A switch, 33kHz, 3V-40V input, 0°C to 70°C, 8-DIP through-hole.","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":"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":"MC34063","Output Configuration":"Positive or Negative","Frequency - Switching":"33kHz","Operating Temperature":"0°C ~ 70°C (TA)","Synchronous Rectifier":"No","Voltage - Input (Max)":"40V","Voltage - Input (Min)":"3V","Voltage - Output (Max)":"38V","Supplier Device Package":"8-DIP","Voltage - Output (Min/Fixed)":"1.25V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.1200","priceTiers":[{"qty":1,"price":"$1.12000","currency":"USD"},{"qty":10,"price":"$1.00300","currency":"USD"},{"qty":50,"price":"$0.95220","currency":"USD"},{"qty":100,"price":"$0.78220","currency":"USD"},{"qty":250,"price":"$0.73116","currency":"USD"},{"qty":500,"price":"$0.64612","currency":"USD"},{"qty":1000,"price":"$0.51010","currency":"USD"},{"qty":2500,"price":"$0.47609","currency":"USD"},{"qty":5000,"price":"$0.45229","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/ded0e68a4eca5ee7ff197c1dcca2753c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MC34063ACN/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum output current of MC34063ACN?","answer":"The internal switch is rated for 1.5 A peak. The maximum continuous output current depends on the topology, input-output voltage differential, and inductor ripple. For a typical buck converter at 33 kHz with 12 V input and 5 V output, expect 500–750 mA continuous output before the switch current limit is reached."},{"question":"What is the switching frequency of MC34063ACN?","answer":"The switching frequency is 33 kHz, set by an external timing capacitor. This low frequency allows the use of inexpensive, low-loss inductors but results in higher output ripple compared to higher-frequency regulators."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/MC34063ACN","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/MC34063ACN 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}}