LTC3417AIDHC-2#PBF

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The LTC3417AIDHC-2#PBF is a DC-DC switching regulator that is part of a larger family of PMIC (Power Management IC) voltage regulators. This device is a highly integrated step-up power converter, specifically designed for Li-Ion battery applications. It is capable of providing up to 1A of continuous output current while switching at a frequency of up to 3MHz. The device also includes a unique set of features, such as a low current limit and no-load current, that provide a high level of efficiency and protection for sensitive Li-Ion cell applications.

Working Principle

The LTC3417AIDHC-2#PBF operates on the principle of PWM (Pulse Width Modulation). The device takes an input voltage and converts it to an output voltage that is higher than the input. In order to do this, the device uses four external components to form an oscillator circuit. The oscillator circuit generates a pulse with an adjustable duty cycle. This pulse is applied to an internal switch, and every time the pulse goes high, the device switches on, allowing current to flow from the input to the output.

The device is designed to switch at a maximum frequency of 3MHz. When the device is on, it will take the input voltage and increase it above the output voltage, by the ratio of the inductor size to the output capacitor size. Once the output voltage reaches the desired voltage, the device will switch off, stopping the current flow, and the output capacitor will discharge, reducing the output voltage. This process continues with each cycle, ensuring the output voltage remains at the set voltage.

Application Field

The LTC3417AIDHC-2#PBF is designed for use in Li-Ion battery applications. It can be used to create a wide range of output voltages, and its high operating frequency and low on-resistance allow it to achieve high efficiency levels. The device is also capable of operating in a very low current limit, allowing it to protect a sensitive battery against overcurrent situations. The device’s no-load current also allows it to shut down when the load is removed, conserving power. As a result, the LTC3417AIDHC-2#PBF is ideal for applications such as mobile phones, digital music players, and other portable devices.

In conclusion, the LTC3417AIDHC-2#PBF is an advanced DC-DC switching regulator designed for Li-Ion battery applications. It is capable of providing up to 1A of continuous current at a switching frequency of up to 3MHz, and its low current limit and no-load current provide a high level of protection for the battery. The device is ideal for use in mobile phones, digital music players, and other portable electronic devices.

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