{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LP38858T-1.2/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LP38858T-1.2-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LP38858T-1.2-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LP38858T-1.2%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LP38858T-1.2/NOPB, positive fixed-output LDO, 1.2V, 1.5A, 0.18V max dropout, PSRR 80dB ~ 65dB (120Hz ~ 1kHz), TO-220-5 formed leads, -40°C to 125°C, active.","salesMarkdown":"## Through-hole TO-220-5 — board fit and thermal handling The LP38858T-1.2/NOPB comes in a TO-220-5 package with formed leads, through-hole mount. That package choice matters: the TO-220 tab can be bolted to a heatsink or soldered to a large copper plane on the PCB, which is how you keep the junction below 125°C at 1.5A output when the dropout voltage is burning off a few hundred milliwatts. The formed leads sit flat on the board, so the part fits standard TO-220 footprints — no special land pattern needed. If you are retrofitting an older design that used a TO-220 linear regulator, this drops in mechanically. ## Active production — no LTB risk on this BOM line The LP38858T-1.2/NOPB carries an Active lifecycle status and is ROHS3 compliant. For a storeroom or a long-life industrial product, this part does not force a lifetime buy decision today. The ROHS3 compliance also means it ships lead-free, which is the standard for new builds in most markets. ## Protection features and soft-start for controlled power-up Built-in protection covers overcurrent, overtemperature, short-circuit, and undervoltage lockout (UVLO). The soft-start control feature limits inrush current during startup, which helps avoid a voltage dip on the input rail when the regulator powers a large capacitive load. That is a practical advantage if the 1.2V rail feeds a bank of decoupling caps on an FPGA or processor core — the soft-start prevents the upstream supply from sagging.","metaTitle":"LP38858T-1.2/NOPB LDO Regulator, 1.2V Fixed, 1.5A, TO-220-5","metaDescription":"Texas Instruments LP38858T-1.2/NOPB is a 1.2V fixed-output LDO rated for 1.5A with 0.18V max dropout. PSRR 80dB~65dB (120Hz~1kHz). Active, RoHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"PSRR":"80dB ~ 65dB (120Hz ~ 1kHz)","Package":"Tube","Output Type":"Fixed","Mounting Type":"Through Hole","Package / Case":"TO-220-5 Formed Leads","lifecycle_stage":"eol_hot","Control Features":"Soft Start","Current - Output":"1.5A","Protection Features":"Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C","Voltage - Input (Max)":"5.5V","Voltage Dropout (Max)":"0.18V @ 1.5A","Current - Supply (Max)":"15 mA","Supplier Device Package":"TO-220-5","Current - Quiescent (Iq)":"8.5 mA","Voltage - Output (Min/Fixed)":"1.2V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.79","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.92000","currency":"USD"},{"qty":10,"price":"$2.62600","currency":"USD"},{"qty":25,"price":"$2.47760","currency":"USD"},{"qty":100,"price":"$2.11100","currency":"USD"},{"qty":250,"price":"$1.98220","currency":"USD"},{"qty":500,"price":"$1.73442","currency":"USD"},{"qty":1000,"price":"$1.43710","currency":"USD"},{"qty":2500,"price":"$1.40250","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/8b1ef536d473eaed2f9bde306c9a067b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the PSRR of LP38858T-1.2/NOPB?","answer":"PSRR is 80 dB at 120 Hz, rolling to 65 dB at 1 kHz. That provides good ripple rejection from a switching preregulator across the audio band, making it a candidate for powering sensitive analog or RF circuits."},{"question":"Is LP38858T-1.2/NOPB RoHS compliant?","answer":"Yes, it is ROHS3 compliant. The part ships lead-free and meets the current RoHS directive."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LP38858T-1.2-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/LP38858T-1.2-NOPB when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}