Datasheet Analog Devices LTC3805HMSE-5#TRPBF — 数据表

LTC3805-5
Adjustable Frequency
Current Mode Flyback/
Boost/SEPIC DC/DC Controller
DESCRIPTION FEATURES n n n n n n n n VIN and VOUT Limited Only by External Components
4.5V Undervoltage Lockout Threshold
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
Only 100mV Current Sense Voltage Drop
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 APPLICATIONS n n n n n The LTC®3805-5 is a current mode DC/DC controller designed to drive an N-channel MOSFET in flyback, boost
and SEPIC converter applications. Operating frequency
and slope compensation can be programmed by external
resistors. Programmable overcurrent sensing protects
the converter from overload and short-circuit conditions. …