{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3125J18DBVRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3125J18DBVRG4","canonicalUrl":"https://icboms.com/texas-instruments/TPS3125J18DBVRG4","factsUrl":"https://icboms.com/api/mcp/products/TPS3125J18DBVRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS3125J18DBVRG4 Simple Reset/Power-On Reset, push-pull output, active high/active low, 1.62V threshold, 100ms timeout, -40°C to 85°C, SOT-23-5.","salesMarkdown":"## 1.62V threshold supervisor for 1.8V rails The TPS3125J18DBVRG4 is a Texas Instruments Simple Reset/Power-On Reset IC that monitors a single 1.8V supply rail. Its 1.62V threshold provides a 180mV guard band below the nominal rail, catching brownouts and slow ramps before the downstream logic sees a glitch. The reset output is push-pull, totem pole, configurable as active high or active low — no external pull-up needed. The minimum reset timeout of 100ms gives the processor or FPGA enough time to initialize before the output de-asserts. ## Industrial temp range, SOT-23-5 footprint No exposed pad; thermal performance is adequate for the low quiescent current of a voltage supervisor. The base product number TPS3125 covers multiple threshold options (1.62V, 2.93V, 3.08V, etc.) in the same SOT-23-5 pinout, so the family is well-established and unlikely to see a sudden EOL.","metaTitle":"TPS3125J18DBVRG4 Simple Reset/Power-On Reset","metaDescription":"Texas Instruments TPS3125J18DBVRG4 Simple Reset/Power-On Reset IC. Active-high/active-low push-pull output, 1.62V threshold, 100ms min timeout, -40°C to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Type":"Simple Reset/Power-On Reset","Reset":"Active High/Active Low","Output":"Push-Pull, Totem Pole","Series":"-","Package":"Tape & Reel (TR)","Mounting Type":"Surface Mount","Reset Timeout":"100ms Minimum","Package / Case":"SC-74A, SOT-753","lifecycle_stage":"eol_hot","Base Product Number":"TPS3125","Voltage - Threshold":"1.62V","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"SOT-23-5","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/33ce582e7a8405bef9aabe534ac434b3.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3125J18DBVRG4/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between TPS3125J18DBVRG4 and TPS3125J30DBVR?","answer":"The two parts share the same pinout, package, and reset output configuration. The only difference is the voltage threshold: the TPS3125J18DBVRG4 monitors at 1.62V (for 1.8V rails), while the TPS3125J30DBVR monitors at 3.08V (for 3.3V rails). Choose based on the supply rail you need to supervise."},{"question":"Can TPS3125J18DBVRG4 be used as a watchdog timer?","answer":"No. It does not have a watchdog input or a windowed monitoring feature. For watchdog functionality, look at the TPS382x or TPS330x families from Texas Instruments."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3125J18DBVRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3125J18DBVRG4 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}