(China (Mainland))
Product Summary
The LTC3805 is a current mode controller for flyback DC/DC converters designed to drive an N-channel MOSFET in high input and output voltage converter applications. Operating frequency and slope compensation can be programmed by external resistors. Programmable overcurrent sensing protects the converter from short-circuits. Softstart can be programmed using an external capacitor and the soft-start capacitor also programs an automatic restart feature.
The LTC3805 provides ±1.5% output voltage accuracy and consumes only 360μA of quiescent current during normal operation and only 40μA during micropower startup. Using a 9.5V internal shunt regulator, the LTC3805 can be powered from a high VIN through a resistor or it can be powered directly from a low impedance DC voltage of 9V or less.
The LTC3805 is available in the 10-lead MSOP package and the 3mm × 3mm DFN package.
Among them if you have any need quote or problem, please could you tell us.
E-mail: abel.huang911@gamil.com
MSN:abel.huang@hotmail.com
Features
VIN and VOUT Limited Only by External Components
Adjustable Slope Compensation
Adjustable Overcurrent Protection with Automatic Restart
Adjustable Operating Frequency (70kHz to 700kHz) with One External Resistor
Synchronizable to an External Clock
±1.5% Reference Accuracy
Current Mode Operation for Excellent Line and Load Transient Response
RUN Pin with Precision Threshold and Adjustable Hysteresis
Programmable Soft-Start with One External Capacitor
Low Quiescent Current: 360μA
Small 10-Lead MSOP and 3mm × 3mm DFN
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 LTC3805EMSE-5#PBF |
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