
ON Semiconductor
3 MHz, 2 A Synchronous Buck Converter
High Efficiency, Low Ripple, Adjustable Output Voltage
The NCP/NCV6323 is a synchronous buck converter which is optimized to supply different sub systems of portable applications powered by one cell Li−ion or three cell Alkaline/NiCd/NiMH batteries. The devices are able to deliver up to 2 A on an external adjustable voltage. Operation with 3 MHz switching frequency allows employing small size inductor and capacitors. Input supply voltage feedforward control is employed to deal with wide input voltage range. Synchronous rectification offer improved system efficiency.
The NCP/NCV6323 is in a space saving, low profile 2.0 x 2.0 x 0.75 mm WDFN−8 package.
FEATUREs
• 2.5 V to 5.5 V Input Voltage Range
• External Adjustable Voltage
• Up to 2 A Output Current
• 3 MHz Switching Frequency
• Synchronous Rectification
• Enable Input
• Power Good Output Option
• Soft Start
• Over Current Protection
• Active Discharge When Disabled
• Thermal Shutdown Protection
• WDFN−8, 2 x 2 mm, 0.5 mm Pitch Package
• Maximum 0.8 mm Height for Super Thin Applications
• NCV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q100
Qualified and PPAP Capable
• This is a Pb−Free Device
Typical Applications
• Cellular Phones, Smart Phones, and PDAs
• Portable Media Players
• Digital Still Cameras
• Wireless and DSL Modems
• USB Powered Devices
• Point of Load
• Game and Entertainment System