{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS79730MDCKREP","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS79730MDCKREP","canonicalUrl":"https://icboms.com/texas-instruments/TPS79730MDCKREP","factsUrl":"https://icboms.com/api/mcp/products/TPS79730MDCKREP","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS79730MDCKREP LDO regulator, 3V fixed output, 10mA, 50dB PSRR at 100Hz, SC-70-5 package, active.","salesMarkdown":"## 3V rail, 2 µA Iq — the always-on LDO for harsh environments The TPS79730MDCKREP is a fixed 3V output LDO from Texas Instruments, rated for 10mA continuous output. PSRR is 50dB at 100Hz — enough to knock down the 100/120Hz ripple from a mains-rectified supply before it reaches a sensitive analog load. For a reference rail or a low-noise sensor bias, that ripple rejection matters more than the dropout at light load. ## Dropout, protection, and the Power Good flag Maximum dropout is 0.4V at 10mA — the input rail needs to stay above 3.4V across load and temperature to keep the output in regulation. That is a tight headroom for a 3.3V rail; a 5V rail gives plenty of margin. Built-in over-current and reverse polarity protection mean the part survives a swapped supply or a shorted output without latching up — useful when the board is being debugged or field-swapped without an ESD bench. The Power Good open-drain output asserts when Vout is within regulation, so you can sequence a downstream load or hold a microcontroller in reset until the rail is stable. No external supervisor needed for a basic power-up sequence. ## SC-70-5 — tiny but hand-solderable The SC-70-5 (SOT-353) package is about 2mm x 2mm — small enough for space-constrained designs but still hand-solderable with a fine tip and steady hands. No hot-air station required if you are swapping one on a repair bench. Surface-mount only; the tape-and-reel or cut-tape options cover both production reels and prototype quantities.","metaTitle":"TPS79730MDCKREP LDO 3V 10mA, 50dB PSRR, SC-70-5","metaDescription":"Texas Instruments TPS79730MDCKREP — 3V fixed-output LDO, 10mA, 50dB PSRR at 100Hz, 2µA Iq, -55°C to 125°C. Active, ROHS3. 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":"50dB (100Hz)","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"5-TSSOP, SC-70-5, SOT-353","lifecycle_stage":"eol_hot","Control Features":"Power Good","Current - Output":"10mA","Protection Features":"Over Current, Reverse Polarity","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-55°C ~ 125°C","Voltage - Input (Max)":"5.5V","Voltage Dropout (Max)":"0.4V @ 10mA","Supplier Device Package":"SC-70-5","Current - Quiescent (Iq)":"2 µA","Voltage - Output (Min/Fixed)":"3V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.21","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.21000","currency":"USD"},{"qty":10,"price":"$2.88600","currency":"USD"},{"qty":25,"price":"$2.72840","currency":"USD"},{"qty":100,"price":"$2.36460","currency":"USD"},{"qty":250,"price":"$2.24340","currency":"USD"},{"qty":500,"price":"$2.01298","currency":"USD"},{"qty":1000,"price":"$1.71600","currency":"USD"},{"qty":3000,"price":"$1.71600","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/cfdb4b6b6a9caf1bdc9505c0cca8b2ee.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How do I get current pricing and availability for TPS79730MDCKREP?","answer":"Submit an RFQ through this listing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS79730MDCKREP","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS79730MDCKREP 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}}