{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LP2980IM5-3.8/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LP2980IM5-3.8-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LP2980IM5-3.8-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LP2980IM5-3.8%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LP2980IM5-3.8/NOPB, fixed-output positive LDO voltage regulator, 3.8V, 50mA, 0.22V dropout at 50mA, 63dB PSRR at 1kHz, SOT-23-5 package, -40°C to 125°C.","salesMarkdown":"## Last Buy — plan the BOM transition Texas Instruments lists the LP2980IM5-3.8/NOPB with a Last Buy lifecycle status. That means the manufacturer has announced end-of-life and is accepting final orders within a defined window — after that, the part is no longer produced. For a procurement buyer filling a BOM line, this is the signal to secure the remaining lifetime buy quantity or qualify a drop-in replacement before the supply dries up. ## 3.8 V fixed output, 50 mA — what it powers This is a single-output, fixed 3.8 V positive LDO regulator rated for 50 mA continuous output. The 0.22 V maximum dropout at 50 mA means it maintains regulation with only 220 mV headroom between input and output — useful when the input rail is a 3.8 V battery or a 5 V bus that sags under load. The 95 µA quiescent current keeps the battery drain low in always-on peripherals. ## 63 dB PSRR — noise rejection for analog rails With 63 dB of power-supply rejection ratio at 1 kHz, this regulator attenuates ripple and switching noise from the input by a factor of roughly 1400. That makes it a fit for powering the analog supply pins of an op-amp, ADC, or sensor front-end where a noisy rail would couple into the signal path. The 16 V maximum input voltage gives headroom for unregulated supplies like a 12 V battery or a 9 V wall wart. ## SOT-23-5 package — board layout notes The LP2980IM5-3.8/NOPB comes in a SOT-23-5 (SC-74A) surface-mount package. The enable pin lets a microcontroller or system supervisor shut down the regulator, dropping the quiescent current to near zero in standby. The over-current, over-temperature, and short-circuit protection features are built in — no external watchdog needed. The junction temperature limit is the same 125°C, so the output current must be derated if the ambient is near the ceiling and the power dissipation is high.","metaTitle":"LP2980IM5-3.8/NOPB LDO Regulator, 3.8V Fixed, 50mA, SOT-23-5","metaDescription":"Texas Instruments LP2980IM5-3.8/NOPB LDO voltage regulator, fixed 3.8V output, 50mA, 63dB PSRR at 1kHz, SOT-23-5.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Last Buy","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","PSRR":"63dB (1kHz)","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"SC-74A, SOT-753","Product Status":"Last Time Buy","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"50mA","Base Product Number":"LP2980","Protection Features":"Over Current, Over Temperature, Short Circuit","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C~125°C","Voltage - Input (Max)":"16V","Voltage Dropout (Max)":"0.22V @ 50mA","Current - Supply (Max)":"1.2 mA","Voltage - Output (Max)":"-","Supplier Device Package":"SOT-23-5","Current - Quiescent (Iq)":"95 µA","Voltage - Output (Min/Fixed)":"3.8V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3f92094f6ce0d469903428f7d72f839d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LP2980IM5-3.8%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"Is LP2980IM5-3.8/NOPB obsolete?","answer":"Texas Instruments has placed the LP2980IM5-3.8/NOPB in Last Buy status, meaning it is not yet discontinued but is in its final production phase. Orders are accepted within the last-time-buy window; after that, the part will no longer be manufactured. For new designs, consider a current-production LDO with the same output voltage and package."},{"question":"What is the difference between LP2980IM5-3.8/NOPB and LP2980IM5-3.3/NOPB?","answer":"Both are the same LP2980 family in the same SOT-23-5 package with identical dropout, PSRR, and quiescent current. The only difference is the fixed output voltage: 3.8 V for this part versus 3.3 V for the sibling. Choose the one that matches your load's supply rail."},{"question":"Does LP2980IM5-3.8/NOPB require an output capacitor?","answer":"Yes, like most LDOs, it needs an output capacitor for stability. The datasheet specifies a minimum of 1 µF ceramic with ESR in the stable range — typically 0.1 Ω to 10 Ω. A 1 µF X7R or X5R capacitor from the output pin to ground is the standard recommendation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LP2980IM5-3.8-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/LP2980IM5-3.8-NOPB when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}