LTM8042-1 Datasheet

• 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

• Display Backlighting
• Automotive and Avionic Lighting
• Illumination
• Scanners

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 LTM8042-1 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 LTM8042-1 is packaged in a thermally enhanced, compact overmolded land grid array (LGA) package. The LTM8042-1 is Pb-free and a RoHS compliant.