LTC3388IDD-1#TRPBF

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The LTC3388IDD-1#TRPBF is a highly-integrated dual-phase power management and battery charger IC, specifically designed for charging single-cell Li-ion/Li-Polymer batteries. The integrated components include a synchronous step-down switching regulator, a low-dropout regulator (LDO), and support circuitry required to operate these components. This IC is suitable for a variety of applications such as USB Type-C power adapters, portable USB products and charging docks.

The LTC3388IDD-1#TRPBF is classified into the DC/DC switching regulators, which are DC/DC converters that utilize switching technology and transform DC input voltages into a controlled DC output voltage. One important thing to note about DC/DC switching regulators is the fact that compared to other types of DC/DC converters, they provide higher power conversion efficiency, thus reducing power losses from heating.

The working principle of this IC is to take an input voltage, regulate a fixed amount of power and then output it as a frequency-controlled variable DC voltage. To do this, the IC switches the input current at a frequency of up to 1.2MHz through the integrated step-down switching regulator and delivers a constant, regulated output voltage. The IC also features an internal LDO regulator to provide a regulated output voltage with minimal additional components.

The step-down switching regulator features two power phases, so it can deliver greater output current with reduced input ripple current. The IC is also equipped with an over-current and short-circuit protection for both its output voltage rails, and an adjustable soft-start to limit the inrush current. This IC also supports intelligent power-saving modes, such as an auto-discharge function, dynamic phase control and active clamping.

The LTC3388IDD-1#TRPBF is an ideal solution for applications such as portable USB products, charging docks, USB Type-C power adapters, and other portable charging applications that require high efficiency and low losses. It is also integrated with a wide range of protection features, which make it an even better choice for these types of applications.

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