TPS65231

Not Recommended for New Designs TPS65230, TPS65231 www.ti.com.................................................................................................................................... SLVSA10A – SEPTEMBER 2009 – REVISED SEPTEMBER 2009 POWER MANAGEMENT IC FOR DIGITAL SET TOP BOXES FEATURES 1 Wide Input Supply Voltage Range (10.8 V - 22 V) One Adjustable PWM Buck Controller – 10.8-V - 22-V Input Voltage Range – 3.3-V - 6.1-V Output Voltage Range – 500kHz switching frequency – Type III Compensation – Programmable Current Limit Two Adjustable Step-Down Converter with Integrated Switching FETs: – 4.75-V - 5.5-V Input – 0.9-V-3.3-V Output Voltage Range – 3-A Output Current – 1-MHz Switching Frequency – Voltage Scaling Option – Type III Compensation Two 100-mΩ, 0.5-A (TPS65230) 1-A (TPS65231) USB Switches with Over Current Protection and Open-Drain Fault Pin Early Supply Failure Flag (Open Drain Output) is Set when Input Voltage Drops Below 9.3 V Early Temperature Warning Flag (Open Drain Output) is Set if Temperature Approaches Shut-Down Threshold Supply Voltage Supervisor Circuit with Two Monitor Inputs and Open Drain Output Parallel I/O or I2C Control with User Selectable Address Advanced Fault Detection and Output Voltage Adjustment Options in I2C Mode Pull-Up Current Sources on Buck Enable Pins for Accurate Start-Up Timing Control with Preset Default Over Current Protection on All Rails Thermal Shutdown to Protect Device During Excessive Po...