{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LP3856ES-5.0/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LP3856ES-5.0-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LP3856ES-5.0-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LP3856ES-5.0%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LP3856ES-5.0/NOPB LDO voltage regulator, fixed 5V output, 3A, DDPAK/TO-263-5, surface mount, -40 to 125°C.","salesMarkdown":"## 3A fixed 5V LDO with 73dB PSRR floor The LP3856ES-5.0/NOPB is a single-output positive LDO from Texas Instruments, delivering a fixed 5V rail at up to 3A continuous. The 73dB to 57dB PSRR at 120Hz means this regulator attenuates 120Hz ripple from a rectified mains supply by a factor of roughly 4500 at the low end — critical when the 5V rail feeds an analog front-end or a precision ADC reference. The 0.6V maximum dropout at full load forces the input rail to stay above 5.6V across the load range; below that the output falls out of regulation. The DDPAK/TO-263-5 package (5 leads plus exposed tab) routes the thermal path through the tab to the PCB copper plane — the 3A output at 5V from a 6V input dissipates about 3W, so the board layout must allocate enough copper area to keep the junction below the 125°C absolute maximum. The Enable pin lets a microcontroller or supervisor pull the output to zero without a series pass FET, and the quiescent current sits at 4mA typical. Protection built in covers overcurrent, overtemperature, and short-circuit events — the part folds back current during a fault and recovers automatically when the junction cools. ## Active production — no lifecycle risk ROHS3 compliance is confirmed, so the part ships lead-free and meets the EU RoHS exemption scope. No official second-source or pin-compatible cross-reference exists within the TI portfolio; the DDPAK-5 footprint is specific to this family. ## Board-fit and thermal checklist A 1oz copper pour of at least 1 square inch per watt dissipated keeps the junction temperature in check at 3A load. The Enable pin is active-high; if unused, tie it to the input pin to keep the regulator enabled. Input and output ceramic capacitors should be placed within 5mm of the respective pins to maintain loop stability and transient response.","metaTitle":"LP3856ES-5.0/NOPB 3A Fixed 5V LDO, DDPAK-5, Active","metaDescription":"Texas Instruments LP3856ES-5.0/NOPB 3A LDO, fixed 5V output, 73dB PSRR at 120Hz, DDPAK/TO-263-5. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"PSRR":"73dB ~ 57dB (120Hz)","Package":"Tube","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"TO-263-6, D²Pak (5 Leads + Tab), TO-263BA","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"3A","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)":"0.6V @ 3A","Current - Supply (Max)":"10 mA","Supplier Device Package":"DDPAK/TO-263-5","Current - Quiescent (Iq)":"4 mA","Voltage - Output (Min/Fixed)":"5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.33","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.33000","currency":"USD"},{"qty":10,"price":"$5.71600","currency":"USD"},{"qty":25,"price":"$5.45000","currency":"USD"},{"qty":100,"price":"$4.73210","currency":"USD"},{"qty":250,"price":"$4.51940","currency":"USD"},{"qty":500,"price":"$4.12064","currency":"USD"},{"qty":1000,"price":"$3.76200","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/9904b905543760b011ff22341d948293.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy LP3856ES-5.0/NOPB and get a price?","answer":"This part is available to order against an RFQ. No stock-holding claim is made — availability is verified per inquiry."},{"question":"What is the PSRR of the LP3856ES-5.0/NOPB?","answer":"The PSRR is specified at 73dB to 57dB at 120Hz. At 73dB, 120Hz ripple on the input is attenuated by a factor of about 4500; at 57dB the attenuation drops to roughly 700x. This matters when the 5V rail powers sensitive analog circuitry."},{"question":"What package does the LP3856ES-5.0/NOPB come in?","answer":"The part ships in a DDPAK/TO-263-5 package (5 leads plus exposed tab), supplied in tube packaging. It is a surface-mount package requiring the tab to be soldered to a PCB copper plane for thermal management."},{"question":"What compliance documentation does Texas Instruments provide for LP3856ES-5.0/NOPB?","answer":"The part is ROHS3 compliant per TI's lifecycle record. Standard TI documentation includes the datasheet, application notes, and PCN notifications for any changes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LP3856ES-5.0-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/LP3856ES-5.0-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}}