MAX1553 Datasheet (Maxim) - 40V Step-Up Converters

MAX1553, 40V Step-Up Converters

The MAX1553/MAX1554 drive white LEDs in series with a constant current to provide efficient display backlighting 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.

The

MAX1553 Features

* Highly Integrated and Flexible Solution for Wide Range of Backlighting Applications

* Constant-Current Regulation for Even LED Illumination

* Internal 40V MOSFET Switch Capable of Driving 10 LEDs

* 2.7V to 5.5V Input Voltage Range

* Analog or PWM Control of