{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS78928DBVT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS78928DBVT","canonicalUrl":"https://icboms.com/texas-instruments/TPS78928DBVT","factsUrl":"https://icboms.com/api/mcp/products/TPS78928DBVT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS78928DBVT linear regulator, fixed 2.8V output, 100mA, 85dB PSRR at 1kHz, SOT-23-5, active production.","salesMarkdown":"## 85 dB PSRR — why it matters for noise-sensitive rails The TPS78928DBVT: With 85 dB of power-supply rejection at 1 kHz, this LDO attenuates ripple from a switching pre-regulator by a factor of roughly 18,000 — enough to keep a 10 mVpp input ripple below 1 µVpp at the output, which matters for analog front-ends, ADC reference supplies, or RF bias rails. ## Dropout and quiescent current — headroom and always-on budget Maximum dropout is 0.13 V at the full 100 mA load, so a 3.0 V input rail leaves 0.07 V of headroom before the output falls out of regulation — tight but workable if the upstream rail is well-regulated. Quiescent current is 28 µA typical, low enough for battery-backed always-on domains where every microamp extends standby life. The SOT-23-5 package (SC-74A) is a standard footprint for low-current linear regulators, and the surface-mount assembly fits into compact mixed-signal boards without a dedicated thermal pad. ## Protection features and control Built-in over-current, over-temperature, and reverse-polarity protection cover the common fault conditions in a power rail — the regulator shuts down before the load or the board trace sees damage. An Enable pin lets the system designer gate the output rail for sequenced power-up or low-power sleep modes.","metaTitle":"Texas Instruments TPS78928DBVT LDO 2.8V 100mA SOT-23-5","metaDescription":"Active-production LDO from Texas Instruments, fixed 2.8V output, 100mA, 85dB PSRR at 1kHz, SOT-23-5. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"PSRR":"85dB (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":"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)":"10V","Voltage Dropout (Max)":"0.13V @ 100mA","Supplier Device Package":"SOT-23-5","Current - Quiescent (Iq)":"28 µA","Voltage - Output (Min/Fixed)":"2.8V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.39","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.39000","currency":"USD"},{"qty":10,"price":"$1.23800","currency":"USD"},{"qty":25,"price":"$1.17520","currency":"USD"},{"qty":100,"price":"$0.96540","currency":"USD"},{"qty":250,"price":"$0.90248","currency":"USD"},{"qty":500,"price":"$0.79754","currency":"USD"},{"qty":1250,"price":"$0.62964","currency":"USD"},{"qty":2500,"price":"$0.59400","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/d96841f0a52cf1bd6bbf98cc5a18a723.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS78928DBVT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS78928DBVT 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}}