MAX158 Datasheet (Maxim) - High-Efficiency / 26V Step-Up Converter

MAX158, High-Efficiency / 26V Step-Up Converter

The MAX1582 drives up to six white LEDs in series with a constant current to provide display backlighting for two (main and sub-) displays in cell phones and other hand-held devices.

This configuration eliminates the need for ballast resistors and expensive factory calibration.

The proprietary dual-

MAX158 Features

* o Accurate Current Regulation for Uniform Illumination o Lights Up Two LED Sections for Main and Subdisplays o Up to 84% Efficiency o Internal High-Power, 30V MOSFET o Low 15mVP-P Input Ripple o Flexible Dimming Control Analog DAC Controlled Direct-Digital PWM (No RC Required) from 200Hz to 200kHz o