{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM27964SQ-A/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM27964SQ-A-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM27964SQ-A-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM27964SQ-A%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM27964SQ-A/NOPB DC DC Regulator LED driver, Switched Capacitor (Charge Pump) topology, 7 outputs, I²C dimming, 700kHz, 24-WQFN (4x4).","salesMarkdown":"## Charge-pump LED driver with I²C dimming The Texas Instruments LM27964SQ-A/NOPB is a switched-capacitor (charge pump) DC-DC regulator LED driver designed for backlight applications. It drives up to seven outputs, each capable of 30 mA typical, with two channels rated for 80 mA to support higher-current LEDs like camera flash or indicator lamps. Dimming is controlled via an I²C interface, allowing independent brightness adjustment per channel without additional PWM pins. The 700 kHz switching frequency keeps external capacitors small — typically 1 µF ceramic — and shifts ripple above the audible band. ## Supply and output range The regulated output voltage is programmable via I²C from 2 V to 4 V, matching the forward voltage of white or blue LEDs in series-parallel arrays. Internal switches eliminate the need for an external inductor — the charge pump uses only flying and reservoir capacitors. ## Active lifecycle and sourcing Availability and current pricing confirmed at RFQ.","metaTitle":"Texas Instruments LM27964SQ-A/NOPB LED Driver, 7-Ch, 30/80mA","metaDescription":"Active-production Texas Instruments LM27964SQ-A/NOPB DC-DC regulator LED driver, 7 outputs, I²C dimming, 700kHz charge pump, 24-WQFN. Available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"DC DC Regulator","Dimming":"I²C","Package":"Bulk","Topology":"Switched Capacitor (Charge Pump)","Frequency":"700kHz","Applications":"Backlight","Mounting Type":"Surface Mount","Package / Case":"24-WFQFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Output":"2V ~ 4V","Number of Outputs":"7","Internal Switch(s)":"Yes","Operating Temperature":"-30°C ~ 85°C (TA)","Voltage - Supply (Max)":"5.5V","Voltage - Supply (Min)":"2.7V","Supplier Device Package":"24-WQFN (4x4)","Current - Output / Channel":"30mA, 80mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.24","priceTiers":[{"qty":135,"price":"$2.24000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6eca0045f4365326258ad058b36fb405.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM27964SQ-A%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"How can I order LM27964SQ-A/NOPB or check stock?","answer":"The LM27964SQ-A/NOPB is an active Texas Instruments part sourced through authorized distribution."},{"question":"What is the closest functional second-source for LM27964SQ-A/NOPB?","answer":"The TLC5940RHBR is a linear LED driver with 16 outputs and shift-register control, but it uses a different topology (linear vs charge pump) and lacks I²C dimming. The TLC69611RTWR is a 16-channel linear driver with PWM dimming but no internal switch. Neither is a drop-in replacement — the LM27964SQ-A/NOPB's charge-pump topology and I²C interface are unique in this comparison set."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM27964SQ-A-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/LM27964SQ-A-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}}