SMB112

SMB112 Preliminary Information Five-Channel Digitally Programmable White-LED and TFT/LCD Power Manager FEATURES & APPLICATIONS INTRODUCTION Digital programming of all major parameters via I2C interface and non-volatile memory o Output voltage set-point o Individual dimming o Output power-up/down sequencing o Digital soft-start and output slew rate o Input/Battery voltage monitoring o UV/OV monitoring of all outputs o Enable/Disable outputs independently Five output channels o One synchronous step-down (buck) channel o Two step-up (boost) channels o One inverting (buck-boost) channel o One fixed output +3.3V LDO +2.7V to +6.0V Input Range Highly accurate reference and output voltage (<0.5%) with Active DC Output Control (ADOC™) technology Supports multiple strings of up to 12 white LEDs in series Undervoltage Lockout (UVLO) with hysteresis 800 kHz operating frequency 96 bytes of user configurable nonvolatile memory Applications White LED backlighting High-power LED driving TFT/LCD Displays/Monitors/TV’s Digital camcorders/still cameras Portable DVD/MP3/GPS Camera/smart phones Mobile Computing/PDA’s SIMPLIFIED APPLICATIONS DRAWING The SMB112 is a highly integrated and flexible five-channel power manager designed for powering TFT/LCD display panels and for driving low- and high-power white-LEDs. The built-in digital programmability allows system designers to custom tailor the device to suit almost any multi-channel power supply application from...