LP5521TMEV

• Adaptive charge pump with 1x and 1.5x gain provides up to 95% LED drive efficiency
• Charge pump with soft start and overcurrent/short circuit protection
• Low input ripple and EMI
• Very small solution size, no inductor or resistors required
• 200 nA typical shutdown current
• Automatic power save mode
• I²C compatible interface
• Independently programmable constant current outputs with 8-bit current setting and 8-bit PWM control
• Typical LED output saturation voltage 50 mV and current matching 1%
• Three program execution engines with flexible instruction set
• Autonomous operation without external control
• Large SRAM program memory
• Two general purpose digital outputs
• microSMD-20 package, 0.4 mm pitch
• Bumped LLP-24 package, 0.5 mm pitch

Applications:

• Fun / indicator lights
• LCD sub-display backlighting
• Keypad RGB backlighting and phone cosmetics
• Vibra, speakers, waveform generator
• Input to the LI-LO configuration, can be post regulated when supply is regulated by Buck2
• Up to 1000 mA output current by selection of external FET