{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS7A2009PDQNR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS7A2009PDQNR","canonicalUrl":"https://icboms.com/texas-instruments/TPS7A2009PDQNR","factsUrl":"https://icboms.com/api/mcp/products/TPS7A2009PDQNR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS7A2009PDQNR LDO voltage regulator, 300 mA, fixed 0.9 V output, ultra-low-noise, low-Iq, 4-X2SON (1x1) package, surface mount.","salesMarkdown":"## Cleaning up a sensitive analog rail The TPS7A2009PDQNR is a 300 mA LDO from Texas Instruments, fixed at 0.9 V output, designed to deliver a clean supply rail for noise-sensitive analog and RF stages. Its PSRR holds 65 dB at 100 Hz and drops to 40 dB at 1 MHz, meaning it rejects ripple from a switching pre-regulator across the audio band and well into the low-MHz region — exactly what a sensitive ADC or PLL VCO needs to keep jitter and spurs off the supply. ## Battery-life budget and dropout margin Quiescent current is 15 µA typical — low enough that the regulator's own draw won't dominate the sleep current in a battery-powered sensor node that spends most of its time in deep sleep. Maximum dropout voltage is 0.69 V at the full 300 mA load, so the input rail needs to stay above roughly 1.6 V to maintain regulation at 0.9 V out — a single Li-ion cell near end-of-discharge (3.0 V) still has ample headroom. The enable pin lets a system controller power down the regulator when the load is idle, cutting total draw to near zero. ## Thermal and protection for a tight board Built-in over-current, over-temperature, and UVLO protection mean the part can survive a brief output short or a hot environment without latching up or failing open. RoHS3 compliant and supplied on tape & reel or cut tape, it integrates into standard lead-free reflow processes without a separate bake if the moisture-sensitive level (MSL) rating is observed.","metaTitle":"Texas Instruments TPS7A2009PDQNR 300mA LDO, 0.9V Fixed","metaDescription":"Texas Instruments TPS7A2009PDQNR 300mA ultra-low-noise LDO, fixed 0.9V output, 15µA Iq, PSRR 65dB-40dB (100Hz-1MHz), -40°C to +125°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"PSRR":"65dB ~ 40dB (100Hz ~ 1MHz)","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"4-XDFN Exposed Pad","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"300mA","Protection Features":"Over Current, Over Temperature, Under Voltage Lockout (UVLO)","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C (TJ)","Voltage - Input (Max)":"6V","Voltage Dropout (Max)":"0.69V @ 300mA","Supplier Device Package":"4-X2SON (1x1)","Current - Quiescent (Iq)":"15 µA","Voltage - Output (Min/Fixed)":"0.9V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.49","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.49000","currency":"USD"},{"qty":10,"price":"$0.41700","currency":"USD"},{"qty":25,"price":"$0.38960","currency":"USD"},{"qty":100,"price":"$0.31160","currency":"USD"},{"qty":250,"price":"$0.28936","currency":"USD"},{"qty":500,"price":"$0.24486","currency":"USD"},{"qty":1000,"price":"$0.18921","currency":"USD"},{"qty":3000,"price":"$0.17251","currency":"USD"},{"qty":6000,"price":"$0.16139","currency":"USD"},{"qty":15000,"price":"$0.15750","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/7af9499db957bf46087c76a8597de07b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the PSRR of the TPS7A2009PDQNR?","answer":"The TPS7A2009PDQNR delivers 65 dB PSRR at 100 Hz, rolling off to 40 dB at 1 MHz, which means it effectively filters switching-regulator ripple across the audio band and into the low-MHz range."},{"question":"What package does the TPS7A2009PDQNR come in?","answer":"It is supplied in a 4-X2SON package (1x1 mm body), also designated as 4-X2SON (1x1), with an exposed pad for thermal management."},{"question":"What compliance documentation does Texas Instruments provide for the TPS7A2009PDQNR?","answer":"The TPS7A2009PDQNR is ROHS3 Compliant per Texas Instruments documentation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS7A2009PDQNR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS7A2009PDQNR 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}}