{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LP3883ESX-1.2","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LP3883ESX-1.2","canonicalUrl":"https://icboms.com/texas-instruments/LP3883ESX-1.2","factsUrl":"https://icboms.com/api/mcp/products/LP3883ESX-1.2","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LP3883ESX-1.2 LDO, fixed 1.2V output, 3A, 0.42V dropout, DDPAK/TO-263-5, -40°C to 125°C, PSRR 80dB ~ 65dB (120Hz ~ 1kHz).","salesMarkdown":"## 3A LDO with PSRR shaped for analog and RF rails The LP3883ESX-1.2 is a fixed 1.2V output LDO from Texas Instruments, delivering up to 3A continuous current from a 5.5V max input rail. Its PSRR profile — 80 dB at 120 Hz rolling to 65 dB at 1 kHz — means it attenuates 50/60 Hz mains ripple and the lower switching harmonics of a preceding DC-DC converter, making it a candidate for post-regulation on sensitive analog or RF supply rails where a switching regulator's ripple would couple into the signal path. The 0.42 V maximum dropout at 3 A sets the headroom requirement: the input rail must stay at least 420 mV above 1.2 V across the full load range to maintain regulation. Below that margin the output falls out of spec, which matters when the upstream rail is a battery near its end-of-discharge or a tightly trimmed intermediate bus. ## Package, thermal path, and protection The DDPAK/TO-263-5 package (also known as TO-263-6 with 5 leads plus tab) exposes the die paddle on the underside — the primary heat path is through the tab to the PCB copper plane. Built-in over-current, over-temperature, and short-circuit protection means the LDO handles output faults without an external supervisor or crowbar circuit. The enable pin (Control Features: Enable) allows the rail to be sequenced — the pin can be driven by a GPIO or a power-good signal from another regulator to control power-up order. ## Active lifecycle and compliance note It is RoHS non-compliant per the supplier declaration, which is a flag for BOMs that require EU RoHS or REACH compliance; verify the exemption or alternative before committing to a production run.","metaTitle":"LP3883ESX-1.2 Texas Instruments LDO, 3A, 1.2V Fixed, DDPAK","metaDescription":"Texas Instruments LP3883ESX-1.2 LDO, fixed 1.2V output, 3A, 0.42V dropout. PSRR 80dB-65dB (120Hz-1kHz). Active production, RoHS non-compliant. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"PSRR":"80dB ~ 65dB (120Hz ~ 1kHz)","Package":"Bulk","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)":"5.5V","Voltage Dropout (Max)":"0.42V @ 3A","Current - Supply (Max)":"8 mA","Supplier Device Package":"DDPAK/TO-263-5","Current - Quiescent (Iq)":"30 µA","Voltage - Output (Min/Fixed)":"1.2V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.48","stockQuantity":0,"priceTiers":[{"qty":55,"price":"$5.48000","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the PSRR of LP3883ESX-1.2?","answer":"The PSRR is 80 dB at 120 Hz, rolling to 65 dB at 1 kHz. This means the LDO attenuates 50/60 Hz mains ripple by 10,000× and 1 kHz switching harmonics by about 1,800×, which is relevant when post-regulating a switching converter feeding an analog or RF load."},{"question":"What package does LP3883ESX-1.2 come in?","answer":"The LP3883ESX-1.2 is supplied in a DDPAK/TO-263-5 package (TO-263-6 with 5 leads plus exposed tab)."},{"question":"What compliance documentation is available for LP3883ESX-1.2?","answer":"Texas Instruments provides the product status as Active and the RoHS status as non-compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LP3883ESX-1.2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LP3883ESX-1.2 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}}