{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3642TLX-LT/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3642TLX-LT-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM3642TLX-LT-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM3642TLX-LT%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM3642TLX-LT/NOPB DC DC Regulator, Step-Up (Boost) topology, 1.5A Flash output, I²C Dimming, 4MHz, 9-WFBGA DSBGA package.","salesMarkdown":"## Boost regulator for camera flash — what the 1.5 A rating means The LM3642TLX-LT/NOPB is a single-channel DC-DC boost regulator from Texas Instruments, purpose-built for camera flash LED drive. Its 1.5 A flash current is the peak the internal switch delivers during the strobe; the 4 MHz switching frequency keeps the inductor and output capacitor small enough for a phone- or module-level board. The part integrates the switch, so the BOM stays to one inductor and a few ceramics — no external FET. Dimming is handled over I²C, which means the host processor sets the flash current and timing in register writes, not a PWM pin. ## Package reality — 9-DSBGA and what it demands from layout Housed in a 9-bump DSBGA measuring 1.6 × 1.6 mm, the LM3642TLX-LT/NOPB is a wafer-level chip-scale package. The 0.5 mm bump pitch is standard for this form factor, but the board-side solder mask opening and via-in-pad strategy must match the TI land pattern — a 2-layer board with microvias under the bumps is typical. ## Active lifecycle and compliance paperwork The 5 V output is the regulated boost rail feeding the LED anode; the cathode connects through the sense resistor back to the part.","metaTitle":"LM3642TLX-LT/NOPB TI Camera Flash LED Driver, 1.5A Boost","metaDescription":"Texas Instruments LM3642TLX-LT/NOPB DC-DC boost regulator for camera flash, 1.5A output, I²C dimming, 4MHz switching. Active, ROHS3. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"DC DC Regulator","Dimming":"I²C","Package":"Tape & Reel (TR); Cut Tape (CT)","Topology":"Step-Up (Boost)","Frequency":"4MHz","Applications":"Camera Flash","Mounting Type":"Surface Mount","Package / Case":"9-WFBGA, DSBGA","lifecycle_stage":"eol_hot","Voltage - Output":"5V","Number of Outputs":"1","Internal Switch(s)":"Yes","Operating Temperature":"-40°C ~ 85°C (TA)","Voltage - Supply (Max)":"5.5V","Voltage - Supply (Min)":"2.5V","Supplier Device Package":"9-DSBGA (1.6x1.6)","Current - Output / Channel":"1.5A (Flash)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.05","priceTiers":[{"qty":1,"price":"$1.05000","currency":"USD"},{"qty":10,"price":"$0.93800","currency":"USD"},{"qty":25,"price":"$0.89040","currency":"USD"},{"qty":100,"price":"$0.73140","currency":"USD"},{"qty":250,"price":"$0.68368","currency":"USD"},{"qty":500,"price":"$0.60420","currency":"USD"},{"qty":1000,"price":"$0.47700","currency":"USD"},{"qty":3000,"price":"$0.45000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/085adb4f0c2e7654d90e4beabd7b6ae1.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3642TLX-LT%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"Will LM3642TLX-LT/NOPB drop into a board designed for TLC5940RHBR?","answer":"No. The TLC5940RHBR is a 16-channel linear shift-register LED driver for backlighting, not a boost regulator for flash. The LM3642TLX-LT/NOPB is a single-channel boost converter with a 1.5 A flash output and I²C interface — the two parts serve completely different topologies and pinouts."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3642TLX-LT-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/LM3642TLX-LT-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}}