{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"UA78L05AILPR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"UA78L05AILPR","canonicalUrl":"https://icboms.com/texas-instruments/UA78L05AILPR","factsUrl":"https://icboms.com/api/mcp/products/UA78L05AILPR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments UA78L05AILPR linear voltage regulator, fixed 5 V output, 100 mA, TO-226-3 / TO-92-3 formed leads, through-hole mount.","salesMarkdown":"## Fixed 5 V rail from up to 20 V input The UA78L05AILPR from Texas Instruments is a single-output positive linear regulator delivering a fixed 5 V at up to 100 mA. With a maximum input of 20 V, it steps down a higher unregulated or semi-regulated rail to a clean 5 V bus for MCUs, sensors, or interface logic on a through-hole board. ## PSRR and noise rejection at line frequency Power-supply rejection ratio is 49 dB at 120 Hz — this is the ripple-rejection figure at the fundamental of a full-wave-rectified 60 Hz mains. For a downstream ADC or analog front-end powered from a lightly loaded 5 V rail, that 49 dB attenuation cuts a 1 Vpp input ripple to roughly 3.5 mVpp at the output, enough to keep line-frequency hum out of the signal chain. ## Protection set and temperature grade Built-in protection covers over-current, over-temperature, reverse polarity, and short-circuit — the regulator survives a sustained output short without damage and recovers when the fault clears. ## Through-hole TO-92-3 — board-fit note Housed in the TO-226-3 / TO-92-3 package with formed leads, the part is a three-pin through-hole device. The TO-92 body is narrow enough for tight layouts but the lead pitch is 2.54 mm (0.100 inch) — match the pad spacing to avoid rework.","metaTitle":"Texas Instruments UA78L05AILPR LDO Regulator 5V 100mA","metaDescription":"Texas Instruments UA78L05AILPR linear regulator, fixed 5V output, 100mA, TO-92-3. Active production, RoHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"PSRR":"49dB (120Hz)","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Through Hole","Package / Case":"TO-226-3, TO-92-3 (TO-226AA) Formed Leads","lifecycle_stage":"eol_hot","Current - Output":"100mA","Protection Features":"Over Current, Over Temperature, Reverse Polarity, Short Circuit","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C","Voltage - Input (Max)":"20V","Voltage Dropout (Max)":"1.7V @ 40mA","Supplier Device Package":"TO-92-3","Voltage - Output (Min/Fixed)":"5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.68","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.68000","currency":"USD"},{"qty":10,"price":"$0.58400","currency":"USD"},{"qty":25,"price":"$0.54520","currency":"USD"},{"qty":100,"price":"$0.43630","currency":"USD"},{"qty":250,"price":"$0.40512","currency":"USD"},{"qty":500,"price":"$0.34280","currency":"USD"},{"qty":1000,"price":"$0.26489","currency":"USD"},{"qty":2000,"price":"$0.24152","currency":"USD"},{"qty":6000,"price":"$0.22594","currency":"USD"},{"qty":10000,"price":"$0.22050","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/b26fb6b3154644af043d061e11fc4f49.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I order UA78L05AILPR or check availability?","answer":"The part is sourced to order through independent and authorized distribution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/UA78L05AILPR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/UA78L05AILPR 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}}