DESCRIPTION
●The TPS650250 is an integrated Power Management IC for applications powered by one Li-Ion or Li-Polymer cell, which require multiple power rails. The TPS650250 provides three highly efficient,
●step-down converters targeted at providing the core voltage, peripheral, I/O and memory rails in a
●processor based system. All three step-down converters enter a low power mode at light load for
●maximum efficiency across the widest possible range of load currents. The converters can be forced into fixed frequency PWM mode by pulling the MODE pin high.
●FEATURES
●• 1.6A, 97% Efficient Step-Down Converter for System Voltage (VDCDC1)
●– 3.3V or 2.8V or Adjustable
●• 0.8A, up to 95% Efficient Step-Down Converter for Memory Voltage (VDCDC2)
●– 1.8V or 2.5V or Adjustable
●• 0.8A, 90% Efficient Step-Down Converter for Processor Core (VDCDC3)
●• adjustable output voltage on VDCDC3
●• 30mA LDO for Vdd_alive
●• 2 × 200mA General Purpose LDOs (LDO1 and LDO2)
●• Dynamic Voltage Management for Processor Core
●• LDO1 and LDO2 Voltage Externally Adjustable
●• Separate Enable Pins for Inductive Converters
●• 2.25MHz Switching Frequency
●• 85µA Quiescent Current
●• Thermal Shutdown Protection
●APPLICATIONS
●• Cellular/Smart Phone
●• GPS
●• Digital Still Camera
●• Split Supply DSP and µP Solutions
●• Samsung ARM-Based Processors, etc.
