LTC3717EGN#PBF

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The LTC3717EGN#PBF is a special-purpose voltage regulator that belongs to the Power Management Integrated Circuit (PMIC) family. Its primary function is to regulate the output voltage of a power supply, providing accurate and reliable control of the output voltage regardless of fluctuations in the load or input voltage. It is well-suited for applications that require precise voltage control, such as battery charging and motor control. The device is pin-compatible with other voltage regulator ICs, allowing for easy replacement and system upgrades.

Overview of Features:

• Integrated adjustable switching regulator
• Two output voltages adjustable from 0.6V to 6V
• Integrated 0.5A and 0.1A internal side switches
• Supports continuous mode and burst mode operation
• Frequency synchronized with host microcontroller
• Parallelable for current up to 2A
• Thermal shutdown protection
• Undervoltage lockout
• Full remote on/off control

Application Field:

The LTC3717EGN#PBF is suitable for a variety of applications that require precise voltage control, such as battery charging, motor control, and power management systems. It can be used in industrial, automotive, and renewable energy systems, as well as in medical, telecom, and embedded applications. It is also well-suited for applications that require synchronization with other devices, such as motor control and power management systems that need to operate in harmony with a microcontroller.

Working Principle:

The LTC3717EGN#PBF is an integrated adjustable switching regulator that comprises a PWM buck controller, a MOSFET, and supporting components all in a single IC package. The device operates in either continuous or pulsed modes and has a maximum output current of 2A. It also has frequency synchronization with the host microcontroller, allowing it to be used in applications where the system needs to operate in harmony with other devices.

The device works by varying the duty cycle and frequency of the PWM signal to adjust the output voltage. The PWM is generated by an oscillator, and the output voltage is sensed directly on the power MOSFET and fed back to the voltage regulator, which adjusts the duty cycle and frequency of the PWM signal to the desired output voltage. The device has an undervoltage lockout (UVLO) feature to protect it from damage when the input voltage is insufficient. The device also has thermal shutdown protection to prevent it from overloading, and a remote on/off control to enable it to be enabled or disabled without a high-current switch.

The LTC3717EGN#PBF is a versatile and reliable voltage regulator that can be used in a variety of applications. It is capable of regulating the output voltage for precise control and has features such as frequency synchronization and remote on/off control. The device is also pin-compatible with other voltage regulator ICs, allowing for easy replacement and system upgrades.

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