{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LP3965ES-ADJ/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LP3965ES-ADJ-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LP3965ES-ADJ-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LP3965ES-ADJ%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LP3965ES-ADJ/NOPB adjustable LDO regulator, 1.5A output, DDPAK/TO-263-5 package, 0.55V dropout max at 1.5A, PSRR 60dB ~ 40dB at 120Hz, -40°C to 125°C.","salesMarkdown":"## 1.5A adjustable LDO — dropout and headroom The LP3965ES-ADJ/NOPB is a positive adjustable LDO regulator delivering 1.5A continuous output from a 1.216V minimum to 5.1V maximum. Single regulator with positive output configuration and enable control — the enable pin lets the system power-sequence the rail or shut down the regulator to 9 mA quiescent current (Iq). ## PSRR and noise-sensitive analog rails Power supply rejection ratio is specified at 60 dB to 40 dB at 120 Hz — this is the ripple rejection from a full-wave rectified input or a switching pre-regulator running at line frequency. At 60 dB, a 100 mVpp ripple on the input is attenuated to 100 µVpp at the output; at 40 dB the same ripple passes 1 mVpp. For an analog front-end or ADC reference rail, the lower rejection at higher frequencies means the upstream switcher's fundamental and harmonics need to stay below the regulator's crossover, or a post-filter is required. ## Industrial temperature range and protection The protection set includes over-current, over-temperature, and short-circuit shutdown; the part folds back or latches off rather than letting the pass element fail shorted, which is the failure signature that takes down the downstream load. ## DDPAK package — thermal and board integration Supplied in a DDPAK/TO-263-5 surface-mount package (5 leads plus exposed tab). The tab is the output and the primary thermal path — the datasheet's RθJA assumes a minimum copper area on the PCB, typically 1 in² on the top layer tied to the output node. Without adequate copper, the junction temperature rises above the 125°C limit at full load in a 25°C ambient. The package ships in tube format.","metaTitle":"LP3965ES-ADJ/NOPB LDO Regulator, 1.5A, Adjustable, DDPAK","metaDescription":"LP3965ES-ADJ/NOPB adjustable LDO, 1.5A output, 0.55V dropout at full load, PSRR 60dB~40dB at 120Hz, -40°C to 125°C, active production, ROHS3. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"PSRR":"60dB ~ 40dB (120Hz)","Package":"Tube","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"TO-263-6, D²Pak (5 Leads + Tab), TO-263BA","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"1.5A","Protection Features":"Over Current, Over Temperature, Short Circuit","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C","Voltage - Input (Max)":"7V","Voltage Dropout (Max)":"0.55V @ 1.5A","Current - Supply (Max)":"15 mA","Voltage - Output (Max)":"5.1V","Supplier Device Package":"DDPAK/TO-263-5","Current - Quiescent (Iq)":"9 mA","Voltage - Output (Min/Fixed)":"1.216V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.33","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.33000","currency":"USD"},{"qty":10,"price":"$4.78800","currency":"USD"},{"qty":25,"price":"$4.52680","currency":"USD"},{"qty":100,"price":"$3.92320","currency":"USD"},{"qty":250,"price":"$3.72196","currency":"USD"},{"qty":500,"price":"$3.33972","currency":"USD"},{"qty":1000,"price":"$2.84700","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/087d3fd451046f60d162e04ece5e7b1b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package does this part come in?","answer":"The LP3965ES-ADJ/NOPB is supplied in a DDPAK/TO-263-5 surface-mount package (5 leads plus exposed thermal tab), shipped in tube packaging."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LP3965ES-ADJ-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/LP3965ES-ADJ-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}}