{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MIC23051-945YML","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"MIC23051-945YML","canonicalUrl":"https://icboms.com/microchip/MIC23051-945YML","factsUrl":"https://icboms.com/api/mcp/products/MIC23051-945YML","rawCanonicalId":null},"summary":{"shortDescription":"Microchip MIC23051-945YML, HyperLight Load® series, Step-Down (Buck) switching regulator, Fixed 1.25 V output, 600 mA, 4 MHz switching frequency, 2.7 V to 5.5 V input, Surface Mount, 8-VFDFN Exposed Pad / 8-MLF® package, -40°C to 125°C junction temperature.","salesMarkdown":"## What this 4 MHz buck regulator brings to a power rail Its 4 MHz switching frequency lets you use small-value inductors and capacitors — typically 1 µH and 4.7 µF — which shrinks the power-stage footprint on space-constrained boards like portable devices, IoT nodes, or industrial sensor modules. The integrated synchronous rectifier eliminates the external Schottky diode that older nonsynchronous bucks need, saving one component and its placement cost. The 600 mA current rating sets the load budget: it comfortably powers a single MCU core, a small FPGA rail, or a sensor chain, but you will need to derate if the ambient temperature pushes junction temperature toward the 125 °C ceiling. The 4 MHz switching frequency is the key enabler for small passives — a 1 µH inductor and 4.7 µF output capacitor are typical, keeping the total power-stage area under 20 mm². That matters when board real estate is the constraint, not absolute efficiency at light load. ## Temperature range and environment The 125 °C junction ceiling gives headroom for self-heating at full load; a thermal analysis should confirm the derating curve for continuous 600 mA at high ambient. ## Lifecycle and supply posture It is ROHS3 compliant.","metaTitle":"MIC23051-945YML HyperLight Load® Buck Regulator, 600 mA","metaDescription":"Microchip MIC23051-945YML is a 4 MHz PWM buck regulator with HyperLight Load® technology, 600 mA output, fixed 1.25 V, in 8-MLF® package. Active lifecycle.","metaKeywords":null},"attributes":{"series":"HyperLight Load®","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Series":"HyperLight Load®","Package":"Bulk","Function":"Step-Down","Topology":"Buck","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"8-VFDFN Exposed Pad, 8-MLF®","lifecycle_stage":"eol_hot","Current - Output":"600mA","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"4MHz","Operating Temperature":"-40°C ~ 125°C (TJ)","Synchronous Rectifier":"Yes","Voltage - Input (Max)":"5.5V","Voltage - Input (Min)":"2.7V","Supplier Device Package":"8-MLF® (2x2)","Voltage - Output (Min/Fixed)":"1.25V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.48","stockQuantity":0,"priceTiers":[{"qty":628,"price":"$0.48000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/f66bff529200d0bbf08b19035018c2fa.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does MIC23051-945YML require an external diode?","answer":"No. The MIC23051-945YML integrates a synchronous rectifier, so no external Schottky diode is needed."},{"question":"Is MIC23051-945YML suitable for battery-powered applications?","answer":"Yes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/MIC23051-945YML","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/MIC23051-945YML 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}}