General Description
    The EMH7021 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 150Ω 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 EMH7021 include current limit, low
battery comparator, open-drain power good output, short circuit, and thermal shutdown protection. The EMH7021 is also available in 3X3mm TDFN-10 package.

Features
 Up to 96% efficiency
 Reference voltage: 0.5V
 Output to input disconnect at shutdown mode
 Current delivery
 - 1A@VOUT=3.3V, VBAT=2.4V
 - 1A@VOUT=5.0V, VBAT=3.6V
 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: 48uA (Tpy.)
 Low shutdown current < 1uA
 TDFN 3x3mm 10 pins package

Applications
 Mobile Phone
 Digital Still Cameras
 Portable applications
 MP3 Players
 GPS Receivers