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LTM8042/LTM8042-1 - μModule Boost LED Driver and Current Source
- True Color PWM™ with 3000:1 Dimming Ratio
- Operates in Boost, Buck Mode or Buck-Boost Mode
- Wide Input Voltage Range:
Operation from 3V to 30V
Transient Protection to 40V
- Gate Driver for Optional PWM Dimming with P-channel MOSFET
- Adjustable Frequency: 250kHz to 2MHz
- Constant-Current and Constant-Voltage Regulation
- Low Shutdown Current: <1μA
- RoHS Compliant Package with Gold Pad Finish
- Tiny, Low Profile (9mm × 15mm × 2.82mm) Surface Mount LGA Package
The LTM8042 is a complete μModule Boost LED Driver specifically designed to drive LEDs up to 1A, while the LTM8042-1 drives up to 350mA. It combines a boost power topology with a unique current loop to operate as a constant-current source. The PWM input provides as much as 3000:1 LED dimming, while 10:1 analog dimming can be accomplished by a single resistor or analog voltage applied to the CTL pin. As with any boost topology, the LTM8042/LTM8042-1 has an uninterrupted current path between its input and output and is thus intolerant to a short-circuit or overload from the output to ground.
The LTM8042/LTM8042-1 is packaged in a thermally enhanced, compact overmolded land grid array (LGA) package. The LTM8042/LTM8042-1 is Pb-free and a RoHS compliant.
CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprint compatible with Mentor Graphics PADS® v9.5 or later, and Cadence ORCAD® v16.5 or later.
For complete and up to date package information and drawings, please refer to our packaging page
9mm x 15mm x 2.82mm LGA
- Part numbers ending in PBF are lead free. Please contact LTC marketing for information on lead based finish parts.
- Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
- Please refer to our general ordering information or the product datasheet for more details
Package Variations and Pricing
|Part Number||Package||Pins||Temp||Price (1-99)||Price (1k)*||RoHS Data|
|Buy Now • Request Samples|
Demo BoardsLinear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.
|DC1511A-A||LTM8042EV Demo Board | uModule Boost LED Driver, 3V ≤ VIN ≤ 30V, Vout up to 32V @ 1A||$65.00|
|DC1511A-B||LTM8042EV-1 Demo Board | uModule Boost LED Driver, 3V ≤ VIN ≤ 30V, Vout up to 32V @ 350mA||$65.00|
- Display Backlighting
- Automotive and Avionic Lighting
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