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                Product Information
                Your Position :Product
                 
                   
                - Voltage detector IC  
                - Reset IC  
                 
                - 1-Cell Li+ Battery Charger IC
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                - WLED Driver
                 
                - DC-DC Converter
                 
                - N-channel MOSFET
                - P-channel MOSFET
                 
                - Amplifiers
                 
                CN5305
                PFM Step-Up DC-DC Controller IC
                Product Profile
                    Application Note
                 
                General Description:
                The CN5305 is a simple, compact PFM boost controller designed for applications where extremely low cost and small size are top priorities. The output voltage is fixed at 5V with 1% accuracy from an input voltage range of +2.7V to +5V.
                Low current consumption of 32uA typical makes CN5305 ideal for battery-powered applications.
                The CN5305 is designed specifically to provide a simple application circuit and minimize the size and number of external components, making them ideal for consumer electronics applications.
                The CN5305 adopts PFM operating mode, which provides excellent efficiency over a wide-range of input voltage and load currents. The on-time and off-time are tuned to permit optimization of external component size.
                Chip enable input can make CN5305 into ultra-low-current shutdown mode.
                The CN5305 is available in a space-saving 6-pin SOT23 package.
                 
                Applications:
                Hand-held Devices LCD Bias
                Electric toys Charger
                 
                Features:
                Operating voltage range:2.7V to 5V
                Low Operating Current: 32uA@5V
                Fixed Output Voltage of 5V
                High Output voltage accuracy:±1%
                No Feedback Resistor needed
                Output Voltage can be adjusted upwards with External Resistor
                Output Power: up to 40W
                High efficiency: 94%
                Chip Enable Input
                Operating Temperature Range -40°C to +85°C
                Available in SOT23-6
                Pb-free
                 
                 
                 
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