SMB113B

SMB113A/B/SMB117/A Preliminary Information High-power, Four-channel Programmable DC-DC System Power Managers FEATURES & APPLICATIONS Digital programming of all major parameters via I2C interface and non-volatile memory Output voltage set point Input/battery voltage monitoring Output power-up/down sequencing Digital soft-start and output slew rate Dynamic voltage control of all outputs UV/OV monitoring of all outputs Enable/Disable outputs independently User friendly Graphical User Interface (GUI) Four synchronous step-down output channels Integrated RESET monitor +2.7V to +6.0V Input Range Highly accurate output voltage: <1.5% Factory programmable dead times 0% to 100% Duty Cycle operation Undervoltage Lockout (UVLO) with hysteresis 250kHz (SMB117A), 400kHz (SMB117), 800kHz (SMB113A), 1MHz (SMB113B) operating frequency 96 bytes of user configurable nonvolatile memory Applications Car & Marine Navigation Systems Set-top Boxes TVs DDR Memory Mobile Computing/PDAs Office Equipment DMB Systems SIMPLIFIED APPLICATIONS DRAWING INTRODUCTION The SMB113A/B and SMB117/A are highly integrated and flexible four-channel power managers designed for use in a wide range of 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 set-top boxes. Complete with a user friendly GUI, all programmable settings, includi...