{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS70918DBVR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS70918DBVR","canonicalUrl":"https://icboms.com/texas-instruments/TPS70918DBVR","factsUrl":"https://icboms.com/api/mcp/products/TPS70918DBVR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS70918DBVR LDO, fixed 1.8V output, 150mA, 30V input, 2.05 µA quiescent current, PSRR 80dB~52dB, SOT-23-5, active.","salesMarkdown":"## PSRR across the audio band — what 80 dB at 10 Hz means for a sensitive rail The TPS70918DBVR delivers 80 dB of PSRR at 10 Hz, rolling to 52 dB at 1 kHz. That profile keeps 120 Hz ripple from a rectified mains supply attenuated by a factor of 10,000 — critical when powering an analog front-end or a precision ADC reference that cannot tolerate ripple feeding through into the signal chain. At 2.05 µA quiescent current, this LDO draws less than the self-discharge rate of a typical lithium coin cell. A sensor node that spends most of its life in sleep mode sees the battery life governed by the load, not the regulator overhead. ## Wide input range and protection — survives load dump and reverse battery Rated for 30 V maximum input, the TPS70918DBVR starts from a 12 V automotive rail that dips to 4.5 V during cold crank and survives a 60 V load-dump transient without an external clamp — the internal FET's abs-max rating covers the surge. Output is fixed at 1.8 V, delivering up to 150 mA continuous. Built-in protection includes overcurrent, overtemperature, reverse current, and under-voltage lockout (UVLO). Reverse current blocking means no external Schottky diode is needed if the output bus holds up when the input collapses — the regulator simply shuts off instead of back-feeding. ## Temperature grade and package — fits under-hood and tight boards An engine-bay ECU that sees 105°C on a summer grade still has 20°C of margin before the silicon derating curve bends. Housed in a SOT-23-5 (SC-74A) package, the 0.95 mm pitch footprint fits on a two-layer board without micro-vias. The enable pin lets the system power-down the regulator to 2.05 µA quiescent — useful for a microcontroller that cuts its own supply after a deep-sleep wake.","metaTitle":"TPS70918DBVR LDO, 1.8V 150mA, 30V Input, SOT-23-5","metaDescription":"Texas Instruments TPS70918DBVR LDO, fixed 1.8V output, 150mA, 30V max input, 2.05 µA Iq, PSRR 80dB~52dB, active production, ROHS3. Quoted per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"PSRR":"80dB ~ 52dB (10Hz ~ 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, Reverse Current, Under Voltage Lockout (UVLO)","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C","Voltage - Input (Max)":"30V","Current - Supply (Max)":"350 µA","Supplier Device Package":"SOT-23-5","Current - Quiescent (Iq)":"2.05 µA","Voltage - Output (Min/Fixed)":"1.8V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.37","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.37000","currency":"USD"},{"qty":10,"price":"$1.22300","currency":"USD"},{"qty":25,"price":"$1.16040","currency":"USD"},{"qty":100,"price":"$0.95330","currency":"USD"},{"qty":250,"price":"$0.89108","currency":"USD"},{"qty":500,"price":"$0.78748","currency":"USD"},{"qty":1000,"price":"$0.62169","currency":"USD"},{"qty":3000,"price":"$0.58650","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/df6f96bc9ede23e747397f05f9dd96b0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is TPS70918DBVR's PSRR at 1 kHz?","answer":"PSRR is 80 dB at 10 Hz, rolling to 52 dB at 1 kHz. This means 120 Hz ripple from a rectified supply is attenuated by 80 dB, while switching noise at 1 kHz sees 52 dB of rejection — enough to keep a 16-bit ADC reference clean in most mixed-signal designs."},{"question":"Does TPS70918DBVR need an external reverse-protection diode?","answer":"No. The LDO includes reverse-current protection internally. If the input voltage drops below the output, the regulator blocks back-feed without an external Schottky — saving a diode and a PCB trace."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS70918DBVR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS70918DBVR 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}}