LTC3561EDD#TRPBF

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The LTC3561EDD#TRPBF is a highly integrated DC-DC converter optimized for mobile applications and industrial operations. It is a high-efficiency buck-boost regulator that is capable of both step-down and step-up operations with a wide input voltage range between 0.8 V and 9 V. LTC3561EDD#TRPBF is a 110-V p-FET power management IC (PMIC) with an integrated linear regulator, low-dropout regulator and integrated power switch with internal compensation that require few components and offer up to 95% efficiency. It is an ideal solution for point-of-load applications that require a wide range of adjustable output voltages from 0.8 V to the input voltage.

The LTC3561EDD#TRPBF PMIC has several application fields. It is suitable for battery-operated applications due to its wide input voltage range and low quiescent current, and for portable applications due to its high efficiency and low ripple noise. It is ideal for industrial applications as it is robust and corrosion resistant. The device also provides fast transient response, over-voltage protection, short-circuit protection and under-voltage protection. Additionally, the device offers adjustable switching frequency between 200 kHz and 2 MHz.

The working principle of the LTC3561EDD#TRPBF PMIC is based on a buck-boost topology. The input voltage is converted into an output voltage within the range of 0.8 V to the input voltage through two transformation stages: an internal high-frequency buck (step down) converter and low-frequency boost (step up) converter. The buck converter operates first and the output voltage is regulated by modulating the duty cycle of a high-frequency pulse width modulation (PWM) signal. The boost converter operates when the output voltage is lower than the input voltage.

The LTC3561EDD#TRPBF PMIC includes an adjustable linear regulator, compensatable 2.5 A MOSFET switch, loop compensation components and power-up reset circuitry. The regulated output voltage may be programmed through an external resistor and the MOSFET switch is adjustable by adjusting an external resistor. The power-up reset circuitry is used to control the startup sequence of the device. It is also used to detect and protect the device against any under-voltage or over-voltage conditions.

The LTC3561EDD#TRPBF is a highly integrated buck-boost switching regulator that servees many purposes. It helps reduce system complexity and cost by providing low quiescent current, a wide input voltage range, high efficiency, low ripple noise, adjustable switching frequency and a wide range of adjustable output voltages. The device also features over-voltage, short-circuit and under-voltage protection. It is an ideal solution for industrial, battery-operated and portable applications requiring a wide array of adjustable output voltages.

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