{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LP5990TMX-2.8/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LP5990TMX-2.8-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LP5990TMX-2.8-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LP5990TMX-2.8%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LP5990TMX-2.8/NOPB linear voltage regulator, fixed 2.8V output, 200mA, positive, enable, 4-WFBGA DSBGA surface mount, tape and reel.","salesMarkdown":"## Fixed 2.8V LDO in a 4-DSBGA footprint The LP5990TMX-2.8/NOPB is a single-output positive LDO from Texas Instruments, delivering a fixed 2.8V at up to 200mA from a maximum input of 5.5V. The 4-DSBGA package (0.8mm pitch typical) keeps the footprint under 2mm², suiting it for space-constrained portable or wireless designs where a clean, regulated rail is needed for analog or RF blocks. ## PSRR and quiescent current — the battery-life tradeoff PSRR is 55dB at 10kHz — this is the mid-band rejection figure that matters for switching-regulator ripple at typical converter frequencies. Below 1kHz the PSRR is higher; above 100kHz it rolls off, so input-side filtering ahead of the LDO is still needed if the upstream switcher runs at 2MHz or above. Quiescent current is 75µA typical — not the lowest in class, but low enough that the regulator's own draw does not dominate the battery budget in a sensor node that spends most of its time in a low-power sleep state. The enable pin lets the system controller cut the LDO's bias entirely when the rail is not needed. ## Dropout headroom and protection suite With a 3.3V rail, that leaves 250mV of margin; with a 3.0V rail, the margin is only 50mV, which is tight over temperature and tolerance. Built-in protection covers over-current, over-temperature, and short-circuit events. These are self-recovering — the LDO shuts down and re-starts when the fault clears, which avoids latch-up in a portable device that gets dropped or sees a momentary output short. ## Temperature grade and board integration The 4-DSBGA package has no exposed thermal pad; heat is conducted through the solder balls and PCB copper plane. A 2-layer board with a solid ground pour under the package is adequate for 200mA continuous at 85°C, but a 4-layer board with a dedicated thermal via array under the die area improves junction-to-ambient resistance by roughly 20%. Mounting is surface-mount only. The DSBGA package requires a solder-paste stencil with aperture matching the 0.4mm ball pitch — standard reflow profile per JEDEC J-STD-020 works. The package is moisture-sensitive; bake before reflow if the floor life has been exceeded.","metaTitle":"LP5990TMX-2.8/NOPB LDO Regulator, 200mA, 2.8V Fixed, 4-DSBGA","metaDescription":"Texas Instruments LP5990TMX-2.8/NOPB LDO, 200mA fixed 2.8V output, 55dB PSRR at 10kHz, 75µA Iq, 4-DSBGA package. Active production, RoHS3. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"PSRR":"55dB (10kHz)","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"4-WFBGA, DSBGA","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"200mA","Protection Features":"Over Current, Over Temperature, Short Circuit","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 85°C","Voltage - Input (Max)":"5.5V","Voltage Dropout (Max)":"0.25V @ 200mA","Supplier Device Package":"4-DSBGA","Current - Quiescent (Iq)":"75 µA","Voltage - Output (Min/Fixed)":"2.8V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.87","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.87000","currency":"USD"},{"qty":10,"price":"$0.77000","currency":"USD"},{"qty":25,"price":"$0.72280","currency":"USD"},{"qty":100,"price":"$0.59000","currency":"USD"},{"qty":250,"price":"$0.54800","currency":"USD"},{"qty":500,"price":"$0.46640","currency":"USD"},{"qty":1000,"price":"$0.37312","currency":"USD"},{"qty":3000,"price":"$0.33814","currency":"USD"},{"qty":6000,"price":"$0.33000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/17252fe7f0166c630f9a52a11f5b88a8.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How do I get current pricing and availability for LP5990TMX-2.8/NOPB?","answer":"Submit an RFQ through this listing. No stock-holding claim is made — availability is verified per inquiry."},{"question":"What is LP5990TMX-2.8/NOPB's listed PSRR?","answer":"The PSRR is 55dB at 10kHz. This is the mid-band rejection figure; at lower frequencies (below 1kHz) rejection is higher, and it rolls off above 100kHz. For applications sensitive to switching-regulator ripple, this figure is the relevant one for filtering at typical converter frequencies."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LP5990TMX-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/LP5990TMX-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}}