LTM8042-1

FEATURES n True Color PWM™ with 3000:1 Dimming Ratio n Operates in Boost, Buck Mode or Buck-Boost Mode n Wide Input Voltage Range: Operation from 3V to 30V Transient Protection to 40V n Gate Driver for Optional PWM Dimming with P-channel MOSFET n Adjustable Frequency: 250kHz to 2MHz n Constant-Current and Constant-Voltage Regulation n Low Shutdown Current: <1μA n RoHS Compliant Package with Gold Pad Finish n Tiny, Low Profile (9mm × 15mm × 2.82mm) Surface Mount LGA Package APPLICATIONS n Display Backlighting n Automotive and Avionic Lighting n Illumination n Scanners L, LT, LTC, LTM, Linear Technology, the Linear logo and µModule are registered trademarks and True Color PWM is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. LTM8042/LTM8042-1 µModule Boost LED Driver and Current Source DESCRIPTION The LTM®8042 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. # WHITE L...