TMI7205B is single-chip power management  IC integrating one wide input voltage and high  efficiency synchronous Buck convert (BUCK1),  double low voltage 1A synchronous Buck  convert (BUCK2 & BUCK 3) and one 300mA  low-dropout linear regulators (LDO). BUCK1  operates in force PWM mode and capable of  delivering up to 1A output current. BUCK2 & BUCK3 is 2.3MHz switching frequency current  mode buck converter and it can run at 100%  duty cycle for low dropout operation. BUCK2 & BUCK3 offers PFM mode and PWM mode,  which allows a high efficiency over the wider  range of the load condition. LDO is designed to  work with low-ESR ceramic capacitors,  reducing the amount of the PCB area  necessary for power applications. Only a 2.2μF  ceramic output capacitor can make the device  stable over the whole load range current (0mA  to 300mA). Advanced production features  include input UVLO, thermal shutdown, soft  start and input OVP.