LTC3417AEFE-1#PBF

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The LTC3417AEFE-1#PBF is a highly efficient synchronous step-down DC-DC converter specifically designed for low-power applications. The device operates from input voltages ranging from 2.7V to 5.5V, and can be used with an output voltage as low as 0.6V. It features very low quiescent current in shut-down mode and very low current in drop-out operation. The device utilizes a peak current-mode architecture with an advanced loop compensation network to enable fast transient response and high accuracy output voltage regulation. The device operates at a fixed frequency up to 2MHz and can be synchronized to an external clock between 200kHz and 1MHz. It also provides programmable undervoltage lockout, short-circuit protection, overcurrent protection, and soft-start.The key features of LTC3417AEFE-1#PBF include its high efficiency operation, low standby current, and fast transient response. The device is designed to be used in a wide range of applications, such as telecom and networking, industrial/automation, medical monitoring and instrumentation, and portable devices. It is known to be a reliable, cost-effective, and low-noise power supply solution for applications such as Bluetooth® systems, digital cameras, smart phones, and tablets.The working principle of LTC3417AEFE-1#PBF is based on the use of a synchronous buck regulator that uses an external MOSFET switch in order to regulate the output voltage. The LTC3417AEFE-1#PBF uses current mode control for fast load transient response and excellent line regulation. The device integrates a precision voltage reference, error amplifiers, a temperature-compensated comparator, logic oscillator, synchronous gate-drive circuit, and power MOSFET drivers to implement a peak current-mode control. The device first performs an internal soft start sequence and ensures an accuracy output voltage regulation. The control loop ensures a constant output voltage by generating a sense signal proportional to the output voltage and compare it with the voltage reference. The difference is amplified and fed to the gate driver, which controls the high-side MOSFET gate. The inductor current is sensed by an internal current sense amplifier to provide current-mode control.In short, the LTC3417AEFE-1#PBF can be used as a DC-DC switching regulator with high-efficiency operation and is suitable for a wide range of low power applications. Its features include low standby current, fast transient response, programmable under-voltage lockout, short-circuit protection, and overcurrent protection. The device can provide an excellent level of accuracy output voltage regulation, making it the ideal solution for a variety of low power applications.

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