{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LP55281TL/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LP55281TL-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LP55281TL-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LP55281TL%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LP55281TL/NOPB DC DC Regulator LED Driver, Boost Topology, 12 Outputs, 40mA per Channel, I²C/SPI Dimming, 2MHz, 36-WFBGA DSBGA, Surface Mount, Tape & Reel.","salesMarkdown":"## 12-channel boost LED driver with digital dimming The LP55281TL/NOPB is a 12-output DC-DC boost regulator LED driver from Texas Instruments, designed for backlight applications. Each channel delivers up to 40 mA, with the output voltage adjustable between 4 V and 5.3 V via the integrated boost converter. Dimming is controlled through I²C or SPI interfaces, giving the firmware direct command over individual channel brightness without external PWM generators. The 2 MHz switching frequency keeps the inductor and capacitor small, shrinking the PCB footprint for space-constrained backlight panels. ## Output count and current — sizing the LED string Twelve independent current sinks, each rated 40 mA, sum to a total drive capability of 480 mA. The boost converter's internal switch handles the combined load, so no external FET is needed for the power stage. The output voltage compliance range (4 V to 5.3 V) suits series strings of two to three white LEDs per channel, depending on forward voltage. Operating temperature spans -30°C to 85°C, covering indoor and most outdoor-rated backlight enclosures.","metaTitle":"Texas Instruments LP55281TL/NOPB LED Driver, 12 Output, 2MHz","metaDescription":"Texas Instruments LP55281TL/NOPB DC-DC regulator LED driver, 12 outputs at 40mA each, I²C/SPI dimming, boost topology, 2MHz, 36-DSBGA, active, RoHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"DC DC Regulator","Dimming":"I²C, SPI","Package":"Tape & Reel (TR); Cut Tape (CT)","Topology":"Step-Up (Boost)","Frequency":"2MHz","Applications":"Backlight","Mounting Type":"Surface Mount","Package / Case":"36-WFBGA, DSBGA","lifecycle_stage":"eol_hot","Voltage - Output":"4V ~ 5.3V","Number of Outputs":"12","Internal Switch(s)":"Yes","Operating Temperature":"-30°C ~ 85°C (TA)","Voltage - Supply (Max)":"5.5V","Voltage - Supply (Min)":"3V","Supplier Device Package":"36-DSBGA","Current - Output / Channel":"40mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.97","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.97000","currency":"USD"},{"qty":10,"price":"$2.66900","currency":"USD"},{"qty":25,"price":"$2.51760","currency":"USD"},{"qty":100,"price":"$2.14490","currency":"USD"},{"qty":250,"price":"$2.01400","currency":"USD"},{"qty":500,"price":"$1.76224","currency":"USD"},{"qty":1250,"price":"$1.46015","currency":"USD"},{"qty":2500,"price":"$1.42500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/8f9b731cf56f54a707d2c265939d22c6.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is LP55281TL/NOPB's listed type and dimming interface?","answer":"The LP55281TL/NOPB is a DC-DC regulator type LED driver with I²C and SPI dimming control."},{"question":"Will LP55281TL/NOPB drop into a board designed for TLC5940RHBR?","answer":"No. The TLC5940RHBR is a 16-channel linear driver with shift-register interface, while the LP55281TL/NOPB is a 12-channel boost regulator with I²C/SPI. The package, pinout, and topology differ — a board spin is required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LP55281TL-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/LP55281TL-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}}