{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LP38692SD-3.3/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LP38692SD-3.3-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LP38692SD-3.3-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LP38692SD-3.3%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LP38692SD-3.3/NOPB, linear voltage regulator, fixed 3.3V output, 1A output current, 55dB PSRR at 120Hz, 1V dropout max at 1A, 55µA quiescent current, -40°C to 125°C, 6-WSON exposed pad package.","salesMarkdown":"## Dropout budget at 1 A — the thermal constraint The LP38692SD-3.3/NOPB is a fixed 3.3 V output LDO from Texas Instruments rated for 1 A continuous output. The headline dropout of 1 V maximum at 1 A means the input rail must stay above 4.3 V to maintain regulation at full load. This is not a part for high-ripple automotive pre-regulator rails where the input may sag to 3.6 V during cold crank; the LMS1587IS-3.3/NOPB with its lower dropout handles that scenario better. ## PSRR — what 55 dB at 120 Hz actually buys you The 55 dB PSRR at 120 Hz is a classic post-rectifier ripple rejection figure. It attenuates 1 Vp-p of 120 Hz ripple from a full-wave bridge to about 1.8 mVp-p at the output. That is adequate for powering analog front-ends where the ADC reference or op-amp supply needs clean DC, but it does not extend into the switching-regulator band — above a few kilohertz the PSRR rolls off. If your design needs 60 dB+ rejection at 100 kHz, look at the LP5907UVX-3.3/NOPB which holds 90 dB at 100 Hz and 60 dB at 100 kHz. ## 55 µA quiescent — always-on rail budget The 55 µA quiescent current (100 µA maximum) keeps the always-on 3.3 V rail from draining the battery in standby. For a microcontroller that sleeps at a few microamps, this LDO adds 55 µA to the sleep budget — acceptable for many industrial and IoT edge nodes, but too high for a coin-cell-powered sensor that must survive a year on a CR2032. The 55 µA Iq is the sum of the internal bias current and the output divider; it does not include the load current. ## Package and thermal — the 6-WSON exposed pad The 6-WSON (3x3 mm) exposed-pad package (supplier device package 6-WSON) is a compact footprint for 1 A capability, but the thermal performance depends entirely on the PCB layout. The ROHS3 compliance is confirmed.","metaTitle":"Texas Instruments LP38692SD-3.3/NOPB LDO Regulator","metaDescription":"Texas Instruments LP38692SD-3.3/NOPB LDO regulator: 3.3V fixed output, 1A, 55dB PSRR at 120Hz, 1V dropout max at 1A, 55µA Iq, -40°C to 125°C, 6-WSON.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"PSRR":"55dB (120Hz)","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"6-WDFN Exposed Pad","lifecycle_stage":"eol_hot","Current - Output":"1A","Protection Features":"Over Temperature","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C","Voltage - Input (Max)":"10V","Voltage Dropout (Max)":"1V @ 1A","Current - Supply (Max)":"100 µA","Supplier Device Package":"6-WSON (3x3)","Current - Quiescent (Iq)":"55 µA","Voltage - Output (Min/Fixed)":"3.3V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.02","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.12000","currency":"USD"},{"qty":10,"price":"$1.90200","currency":"USD"},{"qty":25,"price":"$1.79400","currency":"USD"},{"qty":100,"price":"$1.52850","currency":"USD"},{"qty":250,"price":"$1.43524","currency":"USD"},{"qty":500,"price":"$1.25584","currency":"USD"},{"qty":1000,"price":"$1.04055","currency":"USD"},{"qty":2000,"price":"$1.01550","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/537d21f8094b1e4b51fad6158702f7c8.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is LP38692SD-3.3/NOPB obsolete?","answer":"No."},{"question":"What is the equivalent of LP38692SD-3.3/NOPB?","answer":"The closest functional second-source in the same fixed 3.3 V output class is the LP5907UVX-3.3/NOPB, but it is rated for 250 mA, not 1 A. For higher current the LMS1587IS-3.3/NOPB delivers 3 A with a lower dropout but in a larger DDPAK package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LP38692SD-3.3-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/LP38692SD-3.3-NOPB when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}