2A Fixed-Frequency Synchronous Buck Converter
3 MHz, 2 A Fixed-Frequency Synchronous Buck Converter
High Efficiency, Low Ripple, Adjustable Output Voltage
NCP6354
The...
Description
3 MHz, 2 A Fixed-Frequency Synchronous Buck Converter
High Efficiency, Low Ripple, Adjustable Output Voltage
NCP6354
The NCP6354, a synchronous buck converter, which is optimized to supply the different sub systems of portable applications powered by one cell Li−ion or three cell Alkaline/NiCd/NiMH batteries. The device is 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 offers improved system efficiency. The NCP6354 is in a space saving, low profile 2.0x2.0x0.75 mm WDFN−8 package.
Features
2.3 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 Soft Start Over Current Protection Active Discharge when Disabled Thermal Shutdown Protection WDFN−8, 2x2 mm, 0.5 mm Pitch Package Maximum 0.8 mm Height for Super Thin Applications These are Pb−Free Devices
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
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1
WDFN8 CASE 511BE
MARKING DIAGRAM
1 A2MG G
A2 = Specific Device Code M = Date Code G = Pb−Free Package
(Note: Microdot may be in either location)
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