{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LP2985-25DBVT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LP2985-25DBVT","canonicalUrl":"https://icboms.com/texas-instruments/LP2985-25DBVT","factsUrl":"https://icboms.com/api/mcp/products/LP2985-25DBVT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LP2985-25DBVT linear voltage regulator, fixed 2.5V output, 150mA, 0.58V dropout, SOT-23-5, -40°C to 125°C.","salesMarkdown":"## 2.5V fixed rail for noise-sensitive analog and RF stages The LP2985-25DBVT is a fixed 2.5V output LDO from the LP2985 series, delivering 150 mA continuous current in a 5-pin SOT-23-5 package. The fixed output eliminates the external resistor divider and the associated noise injection from the feedback node — a clean rail for the analog front-end or RF oscillator supply where a 1% tolerance 2.5V reference is needed without external trimming. A 3.3 V supply with 5% tolerance sits at 3.135 V minimum — enough headroom, but a 3.0 V rail would drop out at high load. ## Temperature grade and supply chain The wide range also means the dropout and output accuracy specs hold at the hot end, not just at 25°C. ## PSRR and noise rejection in the 1kHz band Power-supply rejection ratio is specified at 45 dB at 1 kHz. This is the mid-band rejection figure — the regulator attenuates 1 kHz ripple on the input by a factor of ~178. For a 100 mV p-p switching ripple at 1 kHz, the output sees about 0.56 mV p-p. The PSRR rolls off above the unity-gain crossover of the error amplifier, so higher-frequency noise (above ~100 kHz) passes through with less attenuation. ## Protection and quiescent draw Built-in protection covers over-current, over-temperature, and short-circuit events. The current-limit foldback keeps the die temperature within the SOA during a hard short. Quiescent current is 95 µA typical, rising to 2.5 mA maximum under full load — low enough for battery-powered sensors that spend most of their time in a light-load or shutdown state, where the Enable pin (active-high) cuts the supply current to near zero. Input voltage range extends to 16 V maximum, so the part tolerates a 12 V unregulated rail or a 5 V bus without an external pre-regulator. The 2.5 V fixed output at 150 mA suits low-voltage core rails for MCUs, RF transceivers, and sensor ASICs that need a quiet supply separate from the noisy digital rail.","metaTitle":"LP2985-25DBVT LDO Regulator, 2.5V Fixed, 150mA, SOT-23-5","metaDescription":"TI LP2985-25DBVT linear regulator: 2.5V fixed output, 150mA, 0.58V dropout, 45dB PSRR. Active production, ROHS3. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"PSRR":"45dB (1kHz)","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"SC-74A, SOT-753","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"150mA","Protection Features":"Over Current, Over Temperature, Short Circuit","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C","Voltage - Input (Max)":"16V","Voltage Dropout (Max)":"0.58V @ 150mA","Current - Supply (Max)":"2.5 mA","Supplier Device Package":"SOT-23-5","Current - Quiescent (Iq)":"95 µA","Voltage - Output (Min/Fixed)":"2.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.14","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.14000","currency":"USD"},{"qty":10,"price":"$1.01600","currency":"USD"},{"qty":25,"price":"$0.96480","currency":"USD"},{"qty":100,"price":"$0.79240","currency":"USD"},{"qty":250,"price":"$0.74068","currency":"USD"},{"qty":500,"price":"$0.65456","currency":"USD"},{"qty":1250,"price":"$0.51675","currency":"USD"},{"qty":2500,"price":"$0.48750","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/04678a4b281820115c986c9709d770b9.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LP2985-25DBVT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LP2985-25DBVT 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}}