{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MIC94045YFL-TR","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"MIC94045YFL-TR","canonicalUrl":"https://icboms.com/microchip/MIC94045YFL-TR","factsUrl":"https://icboms.com/api/mcp/products/MIC94045YFL-TR","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology MIC94045YFL-TR P-Channel Load Switch, General Purpose, 28mOhm Rds(on), 3A, 1.7-5.5V, 4-WDFN/4-MLF, Tape & Reel.","salesMarkdown":"## Slew-rate control and load discharge The MIC94045YFL-TR: Two integrated features address common power-sequencing problems. The slew-rate controlled turn-on limits inrush current into capacitive loads — a 10 µF output capacitor sees a controlled ramp rather than a current spike that could droop the input rail. The load-discharge feature pulls the output to ground when the switch is turned off, preventing a floating output that could hold a downstream load in an undefined state. The 4-MLF (1.2x1.2 mm) package with a 0.50 mm pitch demands a controlled solder profile but delivers a footprint under 2 mm² for space-constrained PCBs. ROHS3 compliant per, with no halogen or lead restrictions blocking EU or North American builds. The part is supplied on Tape & Reel (full reel) or Cut Tape for prototype quantities, both through the same supply channel. No Vcc supply rail is required — the switch is self-powered from the load voltage, simplifying the BOM by eliminating a bias supply.","metaTitle":"Microchip MIC94045YFL-TR P-Channel Load Switch, 28mOhm, 3A","metaDescription":"Active P-channel high-side load switch from Microchip Technology. 28 mOhm Rds(on), 3A max output, 1.7-5.5V load range. 4-MLF (1.2x1.2) package. ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Load Discharge, Slew Rate Controlled","Interface":"On/Off","Input Type":"Non-Inverting","Output Type":"P-Channel","Switch Type":"General Purpose","Rds On (Typ)":"28mOhm","Mounting Type":"Surface Mount","Package / Case":"4-WDFN, 4-MLF®","Voltage - Load":"1.7V ~ 5.5V","lifecycle_stage":"eol_hot","Number of Outputs":"1","Output Configuration":"High Side","Ratio - Input:Output":"1:1","Operating Temperature":"-40°C ~ 125°C (TJ)","Current - Output (Max)":"3A","Supplier Device Package":"4-MLF® (1.2x1.2)","Voltage - Supply (Vcc/Vdd)":"Not Required"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9","priceTiers":[{"qty":1,"price":"$0.90000","currency":"USD"},{"qty":25,"price":"$0.76320","currency":"USD"},{"qty":100,"price":"$0.70500","currency":"USD"},{"qty":5000,"price":"$0.70500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/f707379347d88cb83a6977bf5ab6636a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MIC94045YFL-TR/alternatives.json"},"ai":{"faq":[{"question":"What is the lead time for MIC94045YFL-TR?","answer":"The MIC94045YFL-TR is an active Microchip part."},{"question":"What does the 28 mOhm Rds(on) mean for my power budget?","answer":"At the 3 A maximum output, 28 mOhm typical Rds(on) produces an 84 mV drop and 252 mW of dissipation inside the 4-MLF package. The junction-to-ambient thermal resistance of the 1.2x1.2 mm package is roughly 90 °C/W — so at 3 A continuous the die temperature rises about 23 °C above ambient, well within the -40 to 125 °C rating."},{"question":"Is the MIC94045YFL-TR pin-compatible with other Microchip load switches?","answer":"The 4-MLF (1.2x1.2) package is shared across several Microchip load switches, but the pinout, features (slew-rate control, load discharge), and Rds(on) vary by variant. Confirm the BOM position against the full datasheet before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/MIC94045YFL-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/MIC94045YFL-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}}