{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LP3999ITL-2.8/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LP3999ITL-2.8-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LP3999ITL-2.8-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LP3999ITL-2.8%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LP3999ITL-2.8/NOPB LDO regulator, 150 mA, 2.8 V fixed output, 5-DSBGA package, 100 mV dropout, active.","salesMarkdown":"## DSBGA footprint and board integration The LP3999ITL-2.8/NOPB: This is a surface-mount part with no exposed thermal pad; the junction-to-board thermal path runs through the solder bumps, so the board's copper plane under the package directly sets the effective RthJA. ## Dropout and PSRR — what the numbers mean for the rail Maximum dropout is 100 mV at the full 150 mA load — the input rail needs to stay at least that margin above 2.8 V across line and load transients, or the output falls out of regulation. PSRR runs 60 dB at 1 kHz, dropping to 50 dB at 10 kHz — that 10 dB roll-off means upstream switching noise above a few kilohertz passes through more readily, so the LDO is best fed from a clean pre-regulator or followed by a ferrite bead if the load is noise-sensitive. ## Quiescent current and enable control Quiescent current is 150 µA typical, with a maximum supply draw of 200 µA — the 50 µA gap between Iq and supply max covers the enable and internal bias circuitry, so the actual battery drain in a always-on sensor node sits near 150 µA when the output is loaded. The enable pin lets the system shut down the LDO entirely — pulling it low drops the supply current to near zero, which matters for battery-powered designs that sleep between measurement cycles.","metaTitle":"Texas Instruments LP3999ITL-2.8/NOPB LDO, 150mA, 2.8V","metaDescription":"Texas Instruments LP3999ITL-2.8/NOPB LDO regulator, 150mA output, 2.8V fixed, 100mV dropout, 5-DSBGA. Active production, ROHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"PSRR":"60dB ~ 50dB (1kHz ~ 10kHz)","Package":"Bulk","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"5-WFBGA, DSBGA","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"150mA","Protection Features":"Over Temperature, Short Circuit","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 85°C","Voltage - Input (Max)":"6V","Voltage Dropout (Max)":"0.1V @ 150mA","Current - Supply (Max)":"200 µA","Supplier Device Package":"5-DSBGA (1.41x1.08)","Current - Quiescent (Iq)":"150 µA","Voltage - Output (Min/Fixed)":"2.8V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.36","stockQuantity":0,"priceTiers":[{"qty":825,"price":"$0.36000","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What protection features does this LDO include?","answer":"Over-temperature and short-circuit protection are built in — the part limits output current and shuts down if the junction exceeds the thermal threshold, then auto-recovers when the die cools."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LP3999ITL-2.8-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/LP3999ITL-2.8-NOPB when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}