SY20518 - Silergy

SY20518 Buck-Boost DC/DC Regulator

The SY20518 is a 2.6V to 5.5V input voltage range, high efficiency, fixed frequency Buck-Boost converter that can provide up to 2A of continuous current to a load that requires a voltage below equal or above the input voltage. The converter can provide power for system powered by either a two-cell or three-cell alkaline, Ni-Cd or Ni-MH batteries, or a single.

Features

 2.6V to 5.5V Input Voltage Range
 2A Continuous Output Current Capability
 Adjustable Output Voltage between 2.6V and 3.8V Independent of the Input Voltage
 1 MHz (typ.) Fixed Frequency Operation
 Four low RDSON Internal Power Switches
 Seamless Buck-Boost Transition
 Output Disconnect During Shutdown
 Power Good Indicator
 Built In Thermal Shut Down Protection, Hard Short Protection Applications
 Handheld Instruments
 MP3/MP4 Players
 Digital Cameras/Camcorders
 Personal Medical Products
 High Power LED’s
 Two-cell and three-cell alkaline, Ni-Cd or Ni-MH or single cell Li batt.