{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LP2980AIM5-2.9/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LP2980AIM5-2.9-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LP2980AIM5-2.9-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LP2980AIM5-2.9%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LP2980AIM5-2.9/NOPB, positive fixed-output LDO regulator, 2.9V, 50mA, PSRR 63dB at 1kHz, dropout 0.22V max at 50mA, quiescent current 95µA, SOT-23-5, -40°C to 125°C.","salesMarkdown":"## 2.9 V fixed LDO for noise-sensitive low-power rails It targets noise-sensitive analog and low-power digital rails where supply rejection and low quiescent current matter more than raw output capacity. Key parametrics include a PSRR of 63 dB at 1 kHz, a maximum dropout voltage of 0.22 V at full load, and a quiescent current of 95 µA — numbers that put it in the class of a precision LDO for battery-powered or always-on subsystems. ## 63 dB PSRR — what it means for a clean rail At 1 kHz the LP2980AIM5-2.9/NOPB delivers 63 dB of power-supply rejection. For a 100 mV ripple on the input, the output sees about 70 µV — enough to keep an analog front-end or a 12-bit ADC reference clean without a post-filter. The 0.22 V maximum dropout at 50 mA means the input can sit as low as 3.12 V and still regulate. In a 3.6 V Li-ion system, that buys usable run time as the cell sags toward end-of-discharge. Quiescent current of 95 µA is a differentiator for always-on blocks — a microcontroller's standby regulator or a CAN transceiver bias rail. The 1.2 mA maximum supply current includes the output drive; at light loads the part stays near its Iq floor. The SOT-23-5 package (SC-74A, SOT-753) is a standard footprint shared by many 5-pin LDOs, but the 2.9 V fixed output is uncommon. A design migrating away from this part will need to evaluate a programmable or adjustable LDO with a resistor divider to match the output voltage.","metaTitle":"LP2980AIM5-2.9/NOPB LDO Regulator, 2.9V Fixed Output, 50mA","metaDescription":"Texas Instruments LP2980AIM5-2.9/NOPB fixed-output LDO: 2.9V, 50mA, PSRR 63dB at 1kHz, 95µA Iq, -40°C to 125°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","PSRR":"63dB (1kHz)","Series":"-","Package":"Tape & Reel (TR)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"SC-74A, SOT-753","Product Status":"Obsolete","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)":"2.9V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/865be670b7e185d590e6565808fed4d6.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LP2980AIM5-2.9%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"Is LP2980AIM5-2.9/NOPB obsolete?","answer":"No official replacement part number has been published."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LP2980AIM5-2.9-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/LP2980AIM5-2.9-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}}