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PMIC - Voltage Regulators - DC DC Switching Controllers

The LTC3834IDHC-1#PBF is a high-efficiency and high-power density synchronous step-down switch mode DC/DC controller which is manufactured by Linear Technology Corporation.

This device has been designed for use in a variety of applications that include desktops, laptops and other computing devices, Video graphic cards, industrial and automotive applications, test and measurements equipment, Point of Load (POL) applications, and more.

The LTC3834IDHC-1#PBF has a number of features that make it an ideal choice for these applications. The device has high efficiency, as well as a wide input voltage range of 4.5V to 28V allowing it to handle a range of voltages. It also has an integrated N-Channel MOSFET with a programmable current limit, as well as a wide range of output voltage and current regulation, allowing it to be optimised for the load requirements of the system.

The LTC3834IDHC-1#PBF has a non-inverting synchronous rectifier PWM control scheme that provides high efficiency at high switching frequencies of up to 1.5MHz. This allows for minimal losses, as well as an optimal blend of performance and efficiency. The device also has a programmable soft-start and pre-bias startup which allows it to be optimised for the specific application it is being used for.

The device works by using pulse width modulation (PWM) in order to switch the MOSFET on and off in order to regulate the output voltage. The device takes an input voltage and adjusts the MOSFET\'s switching frequency and duty cycle to regulate the output voltage. The duty cycle is determined by the error amplifier, which compares the output voltage to the reference voltage. This error amplifier is enabled and disabled either by a logic signal or a PWM signal. The LTC3834IDHC-1#PBF can also operate in a forced continuous mode which allows it to regulate current when the error amplifier is disabled.

In summary, the LT3834IDHC-1#PBF is an ideal device for a range of applications where a high efficiency and power density synchronous step-down switch mode DC/DC controller is required. It is capable of providing high efficiency and a wide range of regulation at high frequencies, as well as programmable soft-start and pre-bias startup capabilities, making it a great choice for a range of automotive and industrial applications.

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