{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LT1761IS5-2#TRMPBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LT1761IS5-2~4TRMPBF","canonicalUrl":"https://icboms.com/analog-devices/LT1761IS5-2~4TRMPBF","factsUrl":"https://icboms.com/api/mcp/products/LT1761IS5-2%23TRMPBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LT1761 series low-noise LDO regulator, LT1761IS5-2#TRMPBF, fixed 2V output, 100mA, 65dB PSRR at 120Hz, TSOT-23-5, surface mount.","salesMarkdown":"## Fixed 2V rail with 65dB ripple rejection The LT1761IS5-2#TRMPBF is a fixed-output low-dropout regulator delivering 100 mA at 2 V from a 20 V max input rail. Its 65 dB PSRR at 120 Hz means it cleans up rectified line-frequency ripple — useful when powering analog front-ends or reference circuits from an unregulated supply. Dropout is 0.45 V max at the full 100 mA load, so the input needs to stay above 2.45 V to keep the output in regulation. The Enable pin lets you gate the output for sequenced power-up or low-power sleep modes. ## Industrial temp range and protection set The protection block includes over-current, over-temperature, and reverse-polarity — the reverse-polarity clamp means a swapped supply won't instantly kill the part. Housed in a TSOT-23-5, the footprint is small enough for tight layouts but still hand-solderable with a fine tip or hot air. The exposed pad on the underside (if present on the TSOT variant) helps pull heat into the board copper — keep a thermal via under the pad for 100 mA continuous.","metaTitle":"LT1761IS5-2#TRMPBF LDO, 100mA, 2V Fixed, 65dB PSRR","metaDescription":"Analog Devices LT1761IS5-2#TRMPBF low-noise LDO regulator, 100mA output, fixed 2V, 65dB PSRR at 120Hz, TSOT-23-5, active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"PSRR":"65dB (120Hz)","Package":"Bulk","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"SOT-23-5 Thin, TSOT-23-5","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"100mA","Protection Features":"Over Current, Over Temperature, Reverse Polarity","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C","Voltage - Input (Max)":"20V","Voltage Dropout (Max)":"0.45V @ 100mA","Supplier Device Package":"TSOT-23-5","Voltage - Output (Min/Fixed)":"2V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.3","stockQuantity":0,"priceTiers":[{"qty":131,"price":"$2.30000","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the PSRR of LT1761IS5-2#TRMPBF?","answer":"The power supply rejection ratio is 65 dB at 120 Hz. That's the line-frequency rejection — it attenuates 120 Hz ripple from a full-wave rectifier by a factor of about 1800, which is why this part is common on precision analog rails."},{"question":"Will LT1761IS5-2#TRMPBF drop into a board designed for LT1761ES5-2.5#TRMPBF?","answer":"The package and pinout are identical — both are TSOT-23-5 with the same Enable and protection features. The difference is the output voltage: 2 V fixed vs 2.5 V fixed. If the downstream circuit expects 2.5 V, the 2 V output will under-power it. Check the load's supply tolerance before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LT1761IS5-2~4TRMPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LT1761IS5-2~4TRMPBF 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}}