LTC3634MPUFD#TRPBF

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The LTC3634MPUFD#TRPBF is a special purpose voltage regulator that is designed for applications like portable, USB-powered products and white goods applications. It is a micro-power DC/DC converter that provides up to 3 A of current output with a switching frequency of up to 1.4 MHz. The device also features an exceptionally low quiescent current of 0.8 µA, an adjustable switching frequency from 500 kHz to 1.4 MHz, and an operating input voltage range from 3.3 V to 5.5 V.

The LTC3634MPUFD#TRPBF operates in buck topology with a synchronous buck converter architecture. It features two synchronized Buck channels. The two Buck channels in the part are configurable from sync mode, to non-sync mode, where one Buck operates as a standalone single-channel Buck converter. This makes the part suitable for a variety of industrial and consumer applications, including 3.3 V and 5 V white goods and high-efficiency portable electronics.

The device contains an internal 6 dB low-pass filter on the output pin, which ensures that the output voltage remains clean and stable. The output can be configured so as to enable an immediate response to line/load transients. Additionally, the LTC3634MPUFD#TRPBF contains a high performance N-channel MOSFET. This power switch reduces switching losses and helps to maintain high efficiency even over a wide range of conditions.

In order to ensure that the output current remains constant, the LTC3634MPUFD#TRPBF contains an internal current sense amplifier that keeps the output current at a predetermined value. The device also features an adjustable feedback voltage, allowing the user to set the output voltage to a value that is appropriate for the application. In addition, the part contains an internal voltage-based loop compensation scheme, enabling the user to adjust the loop gain for a wide range of applications.

The LTC3634MPUFD#TRPBF also contains a configurable power-good indicator output, which can be used to indicate whether the output voltage is within the specified range. This indicator can be configured to compare the output voltage to the target output, and will assert (high) if the voltage is within the specified range. Additionally, the device contains an under-voltage lockout (UVLO) circuit, which prevents the part from operating until the UVLO threshold is satisfied.

The LTC3634MPUFD#TRPBF is designed to meet the demands of various portable, USB-powered applications and white goods applications. The multiple output configuration options and adjustable feedback voltage ensure that the device can be configured for a variety of applications. The user-configurable current limit and power-good indicator makes the device an ideal choice for applications that require intelligent system power management.

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