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ANALOG DEVICES LTC3805EMSE#PBF
DC/DC Controller, Flyback, 1 Output, 80% Duty Cycle, 700kHz, MSOP-EP-10
- Manufacturer:
- ANALOG DEVICES ANALOG DEVICES
- Manufacturer Part No:
- LTC3805EMSE#PBF
- Order Code:
- 4026460
- Technical Datasheet:
- LTC3805EMSE#PBF Datasheet
- ECAD / MCAD
-
Product Overview
LTC®3805 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. Soft-start can be programmed using an external capacitor and the soft-start capacitor also programs an automatic restart feature. This provides ±1.5% output voltage accuracy and consumes only 360µA of quiescent current during normal operation and only 40µA during micropower start-up. Using a 9.5V internal shunt regulator, this 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. Typical applications are telecom power supplies, 42V and 12V automotive power supplies, isolated electronic equipment.
- 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
- Input DC supply current is 360µA (normal operation (fOSC=200KHz))
- 10-lead plastic MSOP package
- Temperature rating range from -40°C to 85°C
Product Information
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- 1 Output
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- 80%
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- MSOP-EP
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- 10Pins
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- 700kHz
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- Flyback
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- -40°C
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- 85°C
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- MSL 1 - Unlimited
Technical Documents (1)
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Extra stock is available upon order to the Supplier Lead Time which is approximately 3/11/24
396 UK stock available for 3-4 business days delivery
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