The EMH7020 is a high efficiency, synchronous fixed frequency, current-mode step-up DC/DC converter. During shutdown mode, the output is completely isolated from the input without drawing any battery current. The fixed 500KHz switching frequency obtains maximum efficiency up to 96% and uses only a few external components. With 180Ω loading, the minimum start-up voltage can be as low as 0.93V, provided by a one or two-cell alkaline or one-cell Li-Lon battery. The features of EMH7020 include current limit, low battery comparator, open-drain power good output, short circuit, and thermal shutdown protection. The EMH7020 is also available in 3X3mm TDFN-10 package.

 

  Mobile Phone

  Digital Still Cameras

  Portable applications

  MP3 Players

  GPS Receivers

 

  Up to 96% efficiency

  Reference voltage: 0.5V

  Output to input disconnect at shutdown mode

  500mA current delivery

  Switch current limit protection

  500KHz fixed switching frequency

  Thermal shutdown protection

  0.5V Low-battery comparator

  Min-start up voltage: 0.93V

  Low quiescent current: 50uA (Tpy.)

  Low shutdown current < 1uA

  TDFN 3x3mm 10 pins package