{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LMS1587CSX-1.5/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LMS1587CSX-1.5-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LMS1587CSX-1.5-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LMS1587CSX-1.5%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LMS1587CSX-1.5/NOPB LDO linear regulator, fixed 1.5V output, 3A, DDPAK/TO-263-3 surface-mount, 1.3V dropout max, 60-72 dB PSRR.","salesMarkdown":"## 3A fixed 1.5V rail — dropout and headroom The LMS1587CSX-1.5/NOPB: PSRR is 60 dB to 72 dB at 120 Hz, which attenuates line-frequency ripple from a rectified AC supply by a factor of 1000 to 4000 — useful for powering sensitive analog or mixed-signal loads from an unregulated front-end. ## Package and thermal path Housed in a DDPAK/TO-263-3 (D²Pak) surface-mount package, the LMS1587CSX-1.5/NOPB uses the large copper tab as the primary heat path. Operating temperature range is 0°C to 125°C, suitable for commercial and industrial environments where the ambient stays above freezing. The part includes over-current and over-temperature protection, latching off during fault conditions and auto-recovering when the fault clears. ## Quiescent and supply current Quiescent current is 7 mA typical, and the maximum supply current is 13 mA. For a 3A output, the quiescent loss is about 35 mW at 5V input — negligible in absolute terms but worth noting for always-on rails where every milliwatt counts.","metaTitle":"LMS1587CSX-1.5/NOPB LDO, 3A fixed 1.5V, DDPAK","metaDescription":"Texas Instruments LMS1587CSX-1.5/NOPB LDO regulator, 3A output, fixed 1.5V, 1.3V dropout max, DDPAK/TO-263-3. Active, ROHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"PSRR":"60 ~ 72 dB (120Hz)","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"TO-263-4, D²Pak (3 Leads + Tab), TO-263AA","lifecycle_stage":"eol_hot","Current - Output":"3A","Protection Features":"Over Current, Over Temperature","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"0°C ~ 125°C","Voltage - Input (Max)":"13V","Voltage Dropout (Max)":"1.3V @ 3A","Current - Supply (Max)":"13 mA","Supplier Device Package":"DDPAK/TO-263-3","Current - Quiescent (Iq)":"7 mA","Voltage - Output (Min/Fixed)":"1.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.98","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.98000","currency":"USD"},{"qty":10,"price":"$2.67700","currency":"USD"},{"qty":25,"price":"$2.53040","currency":"USD"},{"qty":100,"price":"$2.19310","currency":"USD"},{"qty":250,"price":"$2.08064","currency":"USD"},{"qty":500,"price":"$1.86694","currency":"USD"},{"qty":1000,"price":"$1.59150","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5861915efd9467cffcc2a8e3db30b1bb.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I order LMS1587CSX-1.5/NOPB or check availability?","answer":"This part is active and ROHS3 compliant. Submit an RFQ for a firm quote."},{"question":"What package does LMS1587CSX-1.5/NOPB come in?","answer":"It is supplied in a DDPAK/TO-263-3 (D²Pak) surface-mount package. The supplier device package is DDPAK/TO-263-3."},{"question":"What is the PSRR of LMS1587CSX-1.5/NOPB?","answer":"Power supply rejection ratio is 60 dB to 72 dB at 120 Hz, providing 1000× to 4000× attenuation of line-frequency ripple."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LMS1587CSX-1.5-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/LMS1587CSX-1.5-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}}