{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LP3872ES-2.5/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LP3872ES-2.5-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LP3872ES-2.5-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LP3872ES-2.5%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LP3872ES-2.5/NOPB LDO voltage regulator, fixed 2.5V output, 1.5A, DDPAK/TO-263-5 package, tube, active.","salesMarkdown":"## 1.5A LDO for post-regulation and point-of-load rails The LP3872ES-2.5/NOPB is a fixed 2.5V output LDO from Texas Instruments, delivering up to 1.5A from a TO-263-5 (DDPAK) surface-mount package. It is a single positive regulator with enable control and a maximum input voltage of 7V. With a maximum dropout voltage of 0.55V at the full 1.5A load, this part suits post-regulation from a 3.3V rail or a 5V bus where the headroom is tight — the 200 mV typical dropout at lower currents leaves margin for line transients. ## PSRR and noise rejection in the audio band Power supply rejection ratio is specified at 73 dB to 57 dB at 120 Hz — the higher figure at light loads drops as the output current increases. This means the regulator attenuates 120 Hz ripple from a rectified AC input by a factor of roughly 4500 at the low end, which is relevant for sensitive analog front-ends or audio circuits sharing the same supply. Quiescent current is 5 mA typical, rising to 15 mA maximum under all conditions. That Iq is higher than a micropower LDO but acceptable for a 1.5A-capable device where the load current dominates the efficiency calculation. ## Thermal and protection envelope The DDPAK package with its exposed tab requires a thermal pad on the PCB — the tab is the ground path and the primary heat sink, so the board copper area under the part sets the effective RθJA. The enable pin allows the regulator to be sequenced or gated by a system supervisor without an external MOSFET.","metaTitle":"TI LP3872ES-2.5/NOPB LDO Regulator, 2.5V 1.5A DDPAK","metaDescription":"Texas Instruments LP3872ES-2.5/NOPB LDO, fixed 2.5V output, 1.5A, 0.55V dropout at full load, DDPAK-5, active production. 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":"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":"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","Supplier Device Package":"DDPAK/TO-263-5","Current - Quiescent (Iq)":"5 mA","Voltage - Output (Min/Fixed)":"2.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.13","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.13000","currency":"USD"},{"qty":10,"price":"$4.61200","currency":"USD"},{"qty":25,"price":"$4.35960","currency":"USD"},{"qty":100,"price":"$3.77850","currency":"USD"},{"qty":250,"price":"$3.58472","currency":"USD"},{"qty":500,"price":"$3.21654","currency":"USD"},{"qty":1000,"price":"$2.74200","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a06c386b8d4c20f93e9cef0df17ed577.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy LP3872ES-2.5/NOPB and get a price?","answer":"Submit a request for current pricing and availability."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LP3872ES-2.5-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/LP3872ES-2.5-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}}