{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LP3981IMM-3.0/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LP3981IMM-3.0-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LP3981IMM-3.0-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LP3981IMM-3.0%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LP3981IMM-3.0/NOPB, linear voltage regulator, fixed 3V output, 300mA, positive, surface mount 8-VSSOP, -40 to 125°C, active.","salesMarkdown":"## What this regulator does on your rail PSRR sits at 50 dB to 55 dB across the 1 kHz to 10 kHz band, which is useful for cleaning up switching-regulator ripple feeding sensitive analog or RF stages. Quiescent current is 120 µA typical, maxing at 210 µA — low enough for battery-operated gear that stays awake most of the time. Protection includes over-current, over-temperature, and short-circuit shutdown. The operating temperature range of -40°C to 125°C covers automotive under-hood and industrial enclosures, not just office equipment. ## Package and mounting Housed in an 8-VSSOP (3.00 mm width) package, surface-mount only. The supplier device package is 8-VSSOP, which is the same footprint as the standard MSOP-8. Available in Tape & Reel or Cut Tape for prototyping. ## Lifecycle and sourcing Listed as Active in production — no end-of-life notice, no last-time-buy clock. ROHS3 compliant.","metaTitle":"LP3981IMM-3.0/NOPB LDO Regulator, 3V Fixed Output, 300mA","metaDescription":"LP3981IMM-3.0/NOPB linear regulator from TI, fixed 3V output at 300mA, 0.2V max dropout, PSRR 50-55 dB (1-10 kHz), -40 to 125°C, active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"PSRR":"50dB ~ 55dB (1kHz ~ 10kHz)","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"300mA","Protection Features":"Over Current, Over Temperature, Short Circuit","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C","Voltage - Input (Max)":"6V","Voltage Dropout (Max)":"0.2V @ 300mA","Current - Supply (Max)":"210 µA","Supplier Device Package":"8-VSSOP","Current - Quiescent (Iq)":"120 µA","Voltage - Output (Min/Fixed)":"3V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.85","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.85000","currency":"USD"},{"qty":10,"price":"$0.74500","currency":"USD"},{"qty":25,"price":"$0.70000","currency":"USD"},{"qty":100,"price":"$0.57120","currency":"USD"},{"qty":250,"price":"$0.53060","currency":"USD"},{"qty":500,"price":"$0.45156","currency":"USD"},{"qty":1000,"price":"$0.36125","currency":"USD"},{"qty":2000,"price":"$0.32738","currency":"USD"},{"qty":5000,"price":"$0.31950","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/1c6d57dcd07d7153ec1284236bf58793.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does LP3981IMM-3.0/NOPB have an enable pin?","answer":"Yes, the control features include an Enable pin for gating the output on and off."},{"question":"What is the closest pin-compatible alternative to LP3981IMM-3.0/NOPB?","answer":"Within the same LP3981 family, the adjustable-output version (LP3981IMM-ADJ/NOPB) is pin-compatible and uses the same 8-VSSOP footprint, differing only in feedback divider network. For a fixed 3V drop-in with similar dropout and PSRR, the LP3981IMM-3.0 is the only fixed 3V variant in this series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LP3981IMM-3.0-NOPB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LP3981IMM-3.0-NOPB 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}}