GENERAL DESCRIPTION
IS31BL3508A is a boost converter featuring an integrated MOSFET switch designed for driving series strings of LED or other device. Input operating voltage range is 2.7V~5.5V. The device regulates the LED load current is set using an external, low value sensing resistor. The device adjusts the PWM duty cycle of the switch to maintain the voltage at the FB pin at a value of 0.3V.

FEATURES
● Supply voltage: 2.7V~5.5V
● Built-in soft start
● Drive series strings of 10 LEDs or 3×8 LEDs
● PWM or DC voltage dimming
● Frequency of PWM is 500Hz ~ 500kHz
● 1.0MHz high speed switching frequency
● 0.3V feedback voltage
● Integrated high power MOSFET
● Over voltage protection
● -40°C ~ +85°C working temperature range
● TSOT-23-6 and SOT-23-6 package

APPLICATIONS
● Small LCD Backlights
● Notebook PC
● GPS