Four-channel Programmable DC-DC System Power Managers
SMB113A/B/SMB117/A
Preliminary Information
High-power, Four-channel Programmable DC-DC System Power Managers
FEATURES &...
Description
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...
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