LTC3780EG#TRPBF

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LTC3780EG#TRPBF is an integrated dc-dc controller that is typically used in advanced voltage regulation applications, such as distributed power supplies. It is a synchronous switching controller with advanced circuitry to provide precise loop regulation, efficient operation, and superior dynamic response. The LTC3780EG#TRS offers precise voltage regulation in a wide range of output voltage applications and is offered as a standard product.

Features

• Rail-to-Rail Output Voltage Range: 0.5V to 8V
• Programmable Maximum Duty Cycle: 0% to 100%
• Programmable Frequency: 20kHz to 2MHz
• Programmable Soft-Start and Maximum Duty Cycle Limits
• 3.3V and 5.0V Supply Voltages
• Dual Mode Control for Synchronous Rectification or Non-Synchronous Rectification
• No Power Up Interventions Required for Startup

Application Field

The LTC3780EG#TRPBF can be used as a voltage regulator for distributed power systems in applications such as medical instruments, automotive, telecommunications, embedded processors and FPGAs, portable electronics, and industrial equipment. It is also suitable for LED lighting, battery chargers, and DC-DC converters.

Working Principle

The LTC3780EG#TRPBF works as a current-mode boost/flyback controller with synchronous rectification. This means that a reference voltage is applied and the output voltage is regulated by current feedback through the high-side switch. The internal high and low side gate drivers operate the MOSFETs, creating a closed loop that regulates the output voltage.

The LTC3780EG#TRPBF can be configured to control a wide range of input and output voltages and frequencies. The maximum duty cycle can be adjusted from 0% to 100% and the current limit and soft-start can also be adjusted. The device supports two operation modes: synchronous rectification or non-synchronous rectification with low-side on/off control.

Conclusion

The LTC3780EG#TRPBF is a synchronous switching controller that can be used to regulate the voltage of distributed power systems in a wide range of applications. This device features adjustable maximum duty cycle, current limit, and soft-start settings, as well as dual mode control that supports synchronous and non-synchronous rectification operation. This makes the LTC3780EG#TRPBF an ideal choice for voltage regulators in a variety of applications.

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