{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MC34063ECN","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"MC34063ECN","canonicalUrl":"https://icboms.com/stmicroelectronics/MC34063ECN","factsUrl":"https://icboms.com/api/mcp/products/MC34063ECN","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics MC34063ECN, 8-DIP through-hole, 1.5A switch, 33kHz, adjustable buck/boost regulator, 3V to 40V input, 0°C to 70°C","salesMarkdown":"## What the 1.5A switch rating means for your BOM The MC34063ECN integrates a 1.5A switch — that's the peak current the internal transistor can handle, not the continuous output. For a buck converter at 12V in, 5V out, you'll get about 500-700 mA output before the switch current limit kicks in. The 33kHz switching frequency forces you into larger magnetics — a 100-220 µH inductor and 100-470 µF output cap are typical, so the BOM footprint is noticeably bigger than a modern 500 kHz part. ## Input voltage range and topology flexibility It accepts 3V to 40V input and can regulate an adjustable output from 1.25V up to 38V. The output can be positive or negative, and the part supports both buck and boost topologies. That makes it a single-component solution for a bench supply or a multi-rail board where you need both step-up and step-down from the same IC — just rewire the external network. ## Package and temperature — where it fits The 8-DIP package is through-hole, so it's breadboard-friendly and easy to hand-solder in prototyping or low-volume production. It's a mature, widely second-sourced part — the MC34063A from multiple vendors is pin-compatible. No stock-holding claim here — it's sourced per RFQ.","metaTitle":"MC34063ECN – STMicro 1.5A Buck/Boost Regulator, 8-DIP","metaDescription":"MC34063ECN from STMicroelectronics: 1.5A internal switch, 33kHz, adjustable buck/boost, 3V-40V input, 8-DIP through-hole. Active, ROHS3. Request quote.","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":"$0.9700","priceTiers":[{"qty":1,"price":"$0.97000","currency":"USD"},{"qty":10,"price":"$0.86900","currency":"USD"},{"qty":25,"price":"$0.82440","currency":"USD"},{"qty":100,"price":"$0.67720","currency":"USD"},{"qty":250,"price":"$0.63300","currency":"USD"},{"qty":500,"price":"$0.55938","currency":"USD"},{"qty":1000,"price":"$0.44162","currency":"USD"},{"qty":2500,"price":"$0.41218","currency":"USD"},{"qty":5000,"price":"$0.39157","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/ded0e68a4eca5ee7ff197c1dcca2753c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MC34063ECN/alternatives.json"},"ai":{"faq":[{"question":"How can I order MC34063ECN or check stock?","answer":"The MC34063ECN is an active STMicroelectronics part in the 8-DIP through-hole package. We source and quote to order against your BOM quantity — submit an RFQ and we'll confirm availability and current pricing. No live stock count is shown here."},{"question":"Is MC34063ECN equivalent to MC34063A?","answer":"Yes, the MC34063ECN is functionally equivalent to the industry-standard MC34063A. Both have the same pinout, 1.5A switch, 33kHz frequency, and adjustable buck/boost topology. The 'ECN' suffix indicates ST's specific ordering code for the 8-DIP package and commercial temperature range."},{"question":"Can MC34063ECN be used for a negative output voltage?","answer":"Yes, the output configuration supports positive or negative output. By reconfiguring the external inductor, diode, and capacitor network in an inverting topology, you can generate a negative rail from a positive input — for example, +5V in to -5V out, within the 1.5A switch current limit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/MC34063ECN","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/MC34063ECN 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}}