INTRODUCTION

The SMB111 is a highly integrated and flexible four-channel power manager designed for use in a wide range of portable applications. The built-in digital programmability allows system designers to custom tailor the device to suit almost any multi channel power supply application from digital camcorders to

mobile phones. Complete with a user friendly GUI, all programmable settings including output voltages and input/output voltage monitoring can be customized with ease.

FEATURES & APPLICATIONS

? Digital programming of all major parameters via I2C interface and non-volatile memory

o Output voltage set point

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

? Four output channels

o Three synchronous step-down (buck) channels

o One step-up (boost) channel

? User friendly Graphical User Interface (GUI)

? +2.7V to +6.0V Input range

? Highly accurate output voltage (<0.5) with Active DC Output Control (ADOC?) technology

? Undervoltage Lockout (UVLO) with hysteresis

? 800 kHz operating frequency

? 96 bytes of user configurable nonvolatile memory

Applications

? Digital camcorders/still cameras

? Portable DVD/MP3/GPS

? Camera/smart phones

? TFT/LCD Displays/Monitors/TV’s

? Mobile Computing/PDA’s

? Consumer battery-operated equipment