{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LP38842T-1.5/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LP38842T-1.5-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LP38842T-1.5-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LP38842T-1.5%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LP38842T-1.5/NOPB LDO linear regulator, fixed 1.5V output, 1.5A, 80dB PSRR, TO-220-5 through-hole, active.","salesMarkdown":"## 80 dB PSRR on a 1.5 A rail The LP38842T-1.5/NOPB is a fixed-output LDO delivering 1.5 V at up to 1.5 A, with a power-supply rejection ratio of 80 dB at 120 Hz rolling to 65 dB at 1 kHz. That PSRR floor means the output stays clean enough to feed sensitive analog front-ends even when the input bus carries switching ripple from a preceding DC-DC converter. ## Dropout and quiescent current — the real BOM-fit numbers Quiescent current is 30 µA typical, which keeps the regulator's own draw negligible in always-on or battery-backed sections of the board. Operating temperature spans -40°C to 125°C, qualifying the part for industrial enclosures, engine-bay electronics, or outdoor telecom cabinets where ambient heat is a given. ## Through-hole power dissipation and protection The TO-220-5 package (supplier device package TO-220-5) lets the die dissipate heat through the metal tab into a heatsink or PCB copper plane — essential for a 1.5 A LDO when the input-to-output differential is more than a few hundred millivolts. On-chip protection includes over-current, over-temperature, and under-voltage lockout (UVLO), so the regulator survives a shorted load or a thermal transient without external clamp diodes. An Enable pin (active-high) allows the system microcontroller to sequence the rail on and off, cutting the 40 mA maximum supply current when the load is idle.","metaTitle":"LP38842T-1.5/NOPB LDO, 1.5V Fixed, 1.5A, TO-220-5","metaDescription":"Texas Instruments LP38842T-1.5/NOPB LDO, fixed 1.5V output, 1.5A, 80dB PSRR, TO-220-5, active. Quoted to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"PSRR":"80dB ~ 65dB (120Hz ~ 1kHz)","Package":"Tube","Output Type":"Fixed","Mounting Type":"Through Hole","Package / Case":"TO-220-5","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"1.5A","Protection Features":"Over Current, Over Temperature, 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)":"0.315V @ 1.5A","Current - Supply (Max)":"40 mA","Supplier Device Package":"TO-220-5","Current - Quiescent (Iq)":"30 µA","Voltage - Output (Min/Fixed)":"1.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.94","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.94000","currency":"USD"},{"qty":10,"price":"$2.63600","currency":"USD"},{"qty":25,"price":"$2.49240","currency":"USD"},{"qty":100,"price":"$2.16000","currency":"USD"},{"qty":250,"price":"$2.04924","currency":"USD"},{"qty":500,"price":"$1.83878","currency":"USD"},{"qty":1000,"price":"$1.56750","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5a693ec670612f47b6cfb0df5782ddd0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy LP38842T-1.5/NOPB and get a price?","answer":"We source the LP38842T-1.5/NOPB through independent distribution channels."},{"question":"What is the PSRR of the LP38842T-1.5/NOPB?","answer":"The power-supply rejection ratio is 80 dB at 120 Hz, declining to 65 dB at 1 kHz. This means the output rejects most of the ripple from a switching pre-regulator up through the audio band."},{"question":"What package does the LP38842T-1.5/NOPB come in?","answer":"It ships in a TO-220-5 through-hole package, supplied in tubes. The metal tab provides a low thermal resistance path to a heatsink or board plane."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LP38842T-1.5-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/LP38842T-1.5-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}}