TPS563900

PRODUCT PREVIEW TPS563900 www.ti.com SLVSCC7 – DECEMBER 2013 4.5-V To 18-V Input Voltage, 3.5-A/3.5-A Dual Synchronous Step-Down Converter With I2C Controlled VID FEATURES 1 2 4.5-V to 18-V Wide Input Voltage Range I2C Controlled 7-Bits VID Programmable Output Voltage from 0.68 V to 1.95 V with 10-mV Steps for Each Buck; Output Voltage can also be Set by Resistor Divider Programmable Slew-Rate Control for OutputVoltage Transition Up to 3.5-A Maximum Continuous Output Current in Buck 1 and Buck 2 Buck 1 and Buck 2 can be Paralleled to Deliver up to 7-A Current I2C Compatible Interface With Standard Mode (100 kHz) and Fast Mode (400 kHz) I2C Read Back Power Good Status and Die Temperature Warning Pulse-Skipping Mode to Achieve High Efficiency in Light Loads Adjustable Switching Frequency 200 kHz to 1.6 MHz Set by External Resistor Dedicated Enable and Soft-Start for Each Buck Peak Current-Mode Control With Simple Compensation Circuit Cycle-by-Cycle Overcurrent Protection 180° Out-of-Phase Operation to Reduce Input Filter and Power Supply Conduced Noise Overtemperature Protection Available in 32-Pin Thermally Enhanced HTSSOP (DAP) Package APPLICATIONS DTV TCON BDVD Set Top Boxes Tablet PC DESCRIPTION The TPS563900 device is a monolithic dualsynchronous buck converter with a wide 4.5-V to 18V operating input-voltage range that can operate in 5-, 9-, 12-, or 15-V bus voltages and battery chemistries. Constant-frequency peak-current mod...