LTC1475CS8-3.3#TRPBF

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The LTC1475CS8-3.3#TRPBF (LTC1475CS8) is a seven-channel 3.3V buck-boost DC-DC switching regulator IC housed in a convenient 8-pin surface-mount package. It was specifically designed for battery-powered systems and portable consumer electronics. It combines the functions of switching between battery and a secondary DC source (5V, 12V or 24V). By offering ultra-low quiescent current, high efficiency and regulated output current at both battery and secondary sources, it helps reduce the number of components required in battery-powered systems, saving board area, weight, cost and power loss.

The LTC1475CS8 is a DC-DC buck-boost switching regulator. This type of regulator is specifically designed to operate in both forward and reverse conduction modes to provide high-efficiency power conversion of a battery or another DC source. As compared to traditional buck and boost regulators, buck-boost regulators offer a greater range of output voltage, which allows them to regulate the output voltage of a battery or DC source over a wider range of input voltages. In addition, buck-boost regulators typically offer wide input voltage ranges, low output voltage ripple, and can provide precise output current limit protection.

In addition, the LTC1475CS8 has several unique features. It contains a programmable soft-start that prevents the input current form spiking during start-up and a user selectable sleep mode. It also features a newly designed low-current-balance-mode to provide lower quiescent current that allows the regulator to operate with higher efficiency overall. The IC is completely self-contained and requires only a single external inductor, one capacitor for the output voltage and two on-board input/output terminals. The IC also includes an external reset switch that can be used to reset the device if the output exceeds the programmable current limit.

The LTC1475CS8 is ideal for applications such as cellular phones and PDAs, battery-powered systems, and other power sensitive applications where power-saving and cost are important. The IC has an ultra-low quiescent current, high efficiency and allows for precise regulation of the output voltage and current. These features combined with its small package size make it an ideal choice for battery-powered systems and portable consumer electronics.

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