LTC3805EMSE-5#TRPBF

The LTC3805EMSE-5#TRPBF is a versatile and highly configurable DC/DC controller designed for use in flyback, boost, and SEPIC converter applications. It is a current-mode controller that drives an N-channel MOSFET to regulate the output voltage. The operating frequency and slope compensation of the LTC3805EMSE-5#TRPBF can be programmed using external resistors, providing designers with great flexibility in optimizing their power conversion systems.

This controller features programmable overcurrent sensing, which protects the converter from overload and short-circuit conditions. It also includes a soft-start function that can be programmed using an external capacitor. The soft-start capacitor also programs an automatic restart feature, which is useful in applications where the converter may experience temporary faults.

The LTC3805EMSE-5#TRPBF offers high accuracy, with an output voltage accuracy of ±1.5%. It consumes low quiescent current, with a typical value of 360μA during normal operation and only 40μA during micropower startup. This makes it suitable for applications where power consumption is a critical concern.

The controller can be powered from a high VIN through a resistor or directly from a low impedance DC voltage source ranging from 4.7V to 8.8V. It uses a 9.5V internal shunt regulator to ensure stable operation.

The LTC3805EMSE-5#TRPBF is available in a compact 10-lead MSOP package, making it easy to integrate into existing circuits. Its small footprint and high power density make it an ideal choice for space-constrained applications.

Overall, the LTC3805EMSE-5#TRPBF is a reliable and efficient DC/DC controller that provides designers with the flexibility to optimize their power conversion systems for various applications. Its high accuracy, low power consumption, and compact packaging make it a valuable addition to any electronic design requiring efficient and stable power conversion.