{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LP2985AIM5X-3.8/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LP2985AIM5X-3.8-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LP2985AIM5X-3.8-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LP2985AIM5X-3.8%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LP2985AIM5X-3.8/NOPB linear regulator, fixed 3.8V output, 150mA, SOT-23-5 package, 45dB PSRR at 1kHz, active production.","salesMarkdown":"The LP2985AIM5X-3.8/NOPB is a fixed-output linear regulator delivering 3.8V at up to 150mA from a 16V max input rail. This is a common voltage for powering analog front-ends, sensor bias, or low-power MCU I/O banks that need a clean, low-noise supply. The 95 µA quiescent current keeps the regulator's own draw low enough for always-on rails in battery-powered designs. ## PSRR and noise rejection — why 45dB at 1kHz matters The 45dB PSRR at 1kHz means the regulator attenuates ripple on the input by a factor of about 178. If the input rail carries 100 mVpp switching noise at 1kHz, the output sees roughly 0.56 mVpp — clean enough for a 12-bit ADC reference or a precision op-amp supply. Above 1kHz the rejection typically rolls off, so a low-pass filter ahead of the regulator helps if the switching frequency is higher. The enable pin lets you sequence the rail on/off independently, useful for power-sequencing requirements in multi-rail designs. Protection features — over-current, over-temperature, and short-circuit — cover the common fault modes without external clamp diodes. ## Package, temperature grade, and compliance Housed in a 5-pin SOT-23 (SC-74A) package, the LP2985AIM5X-3.8/NOPB fits into compact layouts with a 0.95mm pitch.","metaTitle":"LP2985AIM5X-3.8/NOPB LDO Regulator, 3.8V Fixed, 150mA","metaDescription":"LP2985AIM5X-3.8/NOPB from Texas Instruments: fixed 3.8V output LDO, 150mA, 45dB PSRR at 1kHz, SOT-23-5. Active production, ROHS3 compliant. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"PSRR":"45dB (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, Short Circuit","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C","Voltage - Input (Max)":"16V","Voltage Dropout (Max)":"0.58V @ 150mA","Current - Supply (Max)":"2.5 mA","Supplier Device Package":"SOT-23-5","Current - Quiescent (Iq)":"95 µA","Voltage - Output (Min/Fixed)":"3.8V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.97","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.97000","currency":"USD"},{"qty":10,"price":"$0.86600","currency":"USD"},{"qty":25,"price":"$0.82200","currency":"USD"},{"qty":100,"price":"$0.67530","currency":"USD"},{"qty":250,"price":"$0.63128","currency":"USD"},{"qty":500,"price":"$0.55788","currency":"USD"},{"qty":1000,"price":"$0.44043","currency":"USD"},{"qty":3000,"price":"$0.41550","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LP2985AIM5X-3.8-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/LP2985AIM5X-3.8-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}}