{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LP2985IM5X-2.8","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LP2985IM5X-2.8","canonicalUrl":"https://icboms.com/texas-instruments/LP2985IM5X-2.8","factsUrl":"https://icboms.com/api/mcp/products/LP2985IM5X-2.8","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LP2985IM5X-2.8 LDO regulator, fixed 2.8 V output, 150 mA, SOT-23-5, 0.58 V dropout, 45 dB PSRR, -40°C to 125°C.","salesMarkdown":"## 150 mA fixed 2.8 V LDO — headroom and dropout The LP2985IM5X-2.8 is a single-output positive LDO regulator delivering a fixed 2.8 V at up to 150 mA. Input voltage range extends to 16 V max, so the part can run from a 12 V intermediate bus or a 5 V rail without a pre-regulator. The 95 µA quiescent current keeps the self-consumption low in always-on or battery-backed applications. ## PSRR and noise rejection at 1 kHz PSRR is specified at 45 dB at 1 kHz — this is the rejection of ripple on the input at that frequency. For a 100 mV p-p ripple at 1 kHz, the output sees roughly 560 µV p-p. At higher frequencies the PSRR rolls off, so upstream switching noise above 100 kHz will pass through unless filtered ahead of the LDO. ## Protection features and temperature range The enable pin allows external on/off control, which can be used to sequence rails or reduce quiescent draw in shutdown. Operating temperature spans -40°C to 125°C, covering automotive under-hood and industrial enclosure environments. The SOT-23-5 package (SC-74A) is a common footprint — the copper pad area under the IC sets the thermal resistance, so a solid ground plane on the PCB helps keep the junction temperature within limits at 150 mA.","metaTitle":"LP2985IM5X-2.8 LDO Regulator, 150 mA, Fixed 2.8 V, SOT-23-5","metaDescription":"LP2985IM5X-2.8 LDO, 150 mA output, fixed 2.8 V, 0.58 V dropout at full load, 45 dB PSRR at 1 kHz, -40°C to 125°C, SOT-23-5.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"PSRR":"45dB (1kHz)","Package":"Bulk","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)":"2.8V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.17","stockQuantity":0,"priceTiers":[{"qty":1803,"price":"$0.17000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/731eef1786fb56af74c8b489c377b369.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the PSRR of LP2985IM5X-2.8?","answer":"PSRR is 45 dB at 1 kHz. This means ripple on the input at 1 kHz is attenuated by a factor of about 178 — a 100 mV p-p ripple becomes roughly 560 µV p-p at the output."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LP2985IM5X-2.8","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LP2985IM5X-2.8 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}}