General Description
The FTD6811 is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. The device is available in an adjustable version.
Supply current during operation is only 20mA and drops to ≤1mA in shutdown. The 2.5V to 5.5V input voltage range makes the TD6811 ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems.Automatic Burst Mode operation increases efficiency at light loads, further extending battery life.
FEATUREs
● High Efficiency: Up to 96%
● High Efficiency at light loads
● Very Low Quiescent Current: Only 20uA During
Operation
● 1.2A Output Current
● 2.5V to 5.5V Input Voltage Range
● 1.5MHz Constant Frequency Operation
● No Schottky Diode Required
● Low Dropout Operation: 100% Duty Cycle
● 0.6V Reference Allows Low Output Voltages
● Shutdown Mode Draws ≤1uA Supply Current
● Current Mode Operation for Excellent Line and Load
Transient Response
● Overtemperature Protected
● TSOT23-5 Package is Available
APPLICATIONs
● Cellular Telephones
● Personal Information Appliances
● Wireless and DSL Modems
● Digital Still Cameras
● MP3 Players
● Portable Instruments