MAX1554ETA+T

The MAX1554ETA+T is a high efficiency, 40V step-up converter for 2 to 10 white LEDs in 8 pin TDFN package. It drives white LEDs in series with a constant current to provide efficient display back lighting in cellular phones, PDAs and other hand held devices. The step-up converter includes an internal 40V, low RDSON, N-channel MOSFET switch for high efficiency and maximum battery life. It has a current limit of 970mA for driving up to 10 white LEDs. A single analogue /PWM Dual Mode input provides two simple means of brightness adjustment. A separate enable input provides on/off control and soft-start minimizes inrush current during start up.