SMB214B

SMB214A/B/C High-power, Three-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 Dynamic voltage control of all outputs UV/OV monitoring of all outputs Enable/Disable outputs independently User friendly Graphical User Interface (GUI) Three synchronous step-down output channels Integrated RESET monitor +2.7V to +6.0V Input Range Highly accurate output voltage: <2.5% Factory programmable dead times 0% to 100% Duty Cycle operation Undervoltage Lockout (UVLO) with hysteresis Operating frequency: 400kHz (SMB214A), 800kHz (SMB214B), 1MHz (SMB214C) Preliminary Information INTRODUCTION The SMB214A/B/C are highly integrated and flexible threechannel 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 multichannel power supply application from digital camcorders to set-top boxes. Complete with a user friendly GUI, all programmable settings, including output voltages and input/output voltage monitoring, can be customized with ease. The SMB214A/B/C integrate all the essential blocks required to implement a complete three-channel power subsystem consisting of three synchronous step-down “buck” controllers. Additionally sophisticated power cont...