{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LP3985ITL-3.1/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LP3985ITL-3.1-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LP3985ITL-3.1-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LP3985ITL-3.1%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LP3985 series LDO, LP3985ITL-3.1/NOPB, fixed 3.1V output, 150mA, 5-WFBGA DSBGA, surface mount, active.","salesMarkdown":"## Active production — 3.1 V fixed rail at 150 mA The LP3985ITL-3.1/NOPB is an active-production Texas Instruments LDO delivering a fixed 3.1 V output at up to 150 mA from a maximum 6 V input rail. ## PSRR roll-off and noise rejection PSRR measures 50 dB at 1 kHz and drops to 40 dB at 10 kHz — the regulator attenuates upstream switching noise by a factor of 100 at 1 kHz and 10 at 10 kHz. For a 100 kHz switching converter feeding this LDO, the attenuation above 10 kHz falls off further; a post-filter LC stage ahead of the input may be needed if the load is a sensitive analog front-end. ## 150 µA quiescent current — always-on battery load The 150 µA quiescent current (250 µA max supply) is the current the LDO draws from the input regardless of load — in a battery-powered device that spends most of its time in a low-power state, this Iq sets the floor for the always-on domain's drain. A 100 mAh coin cell with this LDO continuously enabled would see roughly 1500 hours of standby life from the regulator alone, before accounting for the load. ## 5-DSBGA — board-level handling The 5-DSBGA (1.41 x 1.08 mm) is a wafer-level chip-scale package with no molded body — the silicon die is the package. The solder balls are the only standoff; board-level coplanarity depends entirely on the PCB pad geometry and the stencil aperture. This package is moisture-sensitive: check the MSL rating on the reel label before reflow. A bake cycle at 125°C for the rated duration is required if the floor life has been exceeded, or the die-attach interface may delaminate during reflow. The 125°C upper limit is the junction temperature, not the ambient — derate the output current above 85°C ambient per the datasheet's thermal resistance curve for the DSBGA package. ## Protection features and enable control Built-in over-current, over-temperature, and short-circuit protection allow the LDO to survive a sustained output short without damage — the thermal shutdown cycles the output until the fault clears. The Enable pin lets a system controller power down the 3.1 V rail during sleep, dropping the total current draw to near-zero when the load is idle.","metaTitle":"LP3985ITL-3.1/NOPB LDO, 3.1V fixed, 150mA, 5-DSBGA","metaDescription":"Texas Instruments LP3985ITL-3.1/NOPB active LDO, 3.1V fixed output at 150mA, 0.1V dropout. 5-DSBGA package. ROHS3 compliant. 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 ~ 40dB (1kHz ~ 10kHz)","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"5-WFBGA, DSBGA","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)":"6V","Voltage Dropout (Max)":"0.1V @ 150mA","Current - Supply (Max)":"250 µA","Supplier Device Package":"5-DSBGA (1.41x1.08)","Current - Quiescent (Iq)":"150 µA","Voltage - Output (Min/Fixed)":"3.1V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.98","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.98000","currency":"USD"},{"qty":10,"price":"$0.86400","currency":"USD"},{"qty":25,"price":"$0.81160","currency":"USD"},{"qty":100,"price":"$0.66240","currency":"USD"},{"qty":250,"price":"$0.61528","currency":"USD"},{"qty":500,"price":"$0.52364","currency":"USD"},{"qty":1250,"price":"$0.41891","currency":"USD"},{"qty":2500,"price":"$0.37964","currency":"USD"},{"qty":6250,"price":"$0.37050","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/2b0c4f544b067861411cda399254c5b0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What compliance documentation does Texas Instruments provide for LP3985ITL-3.1/NOPB?","answer":"The part is ROHS3 compliant. Texas Instruments provides the standard RoHS certificate of compliance and material declaration. No UL, IEC, or REACH certification is listed in the available records."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LP3985ITL-3.1-NOPB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LP3985ITL-3.1-NOPB 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}}