TI TPS65023RSBR

The TPS65023x device is an integrated power management IC for applications powered by one Li-Ion or Li-Polymer cell, which require multiple power rails. The TPS65023x provides three highly efficient, step-down converters targeted at providing the core voltage, peripheral, I/O, and memory rails in a processor-based system. The core converter allows for on-the-fly voltage changes through serial interface, allowing the system to implement dynamic power savings. All three step-down converters enter a low-power mode at light load for maximum efficiency across the widest possible range of load currents.

• 1.7-A, 90% Efficient Step-Down Converter for Processor Core (VDCDC1)
• 1.2-A, Up to 95% Efficient Step-Down Converter for System Voltage (VDCDC2)
• 1.0-A, 92% Efficient Step-Down Converter for Memory Voltage (VDCDC3)
• 30-mA LDO and Switch for Real Time Clock (VRTC)
• 2x200-mA General-Purpose LDO
• Dynamic Voltage Management for Processor Core
• Preselectable LDO Voltage Using Two Digital Input Pins
• Externally Adjustable Reset Delay Time
• Battery Backup Functionality
• Separate Enable Pins for Inductive Converters
• I2C-Compatible Serial Interface
• I2C Setup and Hold Timing:
  • TPS65023: 300 ns
  • TPS65023B: 100 ns
• 85-μA Quiescent Current
• Low Ripple PFM Mode
• Thermal Shutdown Protection
• 40-Pin, 5-mm x 5-mm WQFN Package

• Digital Media Players
• Internet Audio Players
• Digital Still Cameras
• Smart Phones
• Supply DaVinci DSP Family Solutions