LTC1550LCS8-2#TRPBF

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LTC1550LCS8-2#TRPBF is a high-performance fixed frequency, voltage-mode switching regulator controller IC. It has a high efficiency and employs 1550 switching architecture to reduce the size of the external components while ensuring high accuracy. The LTC1550LCS8-2#TRPBF has built-in features such as accurate 6-bit output voltage settings and a maximal output current of 4A. The built-in current limit function provides protection to the system, making it a powerful and reliable solution for various applications.

Application Field and Working Principle
The LTC1550LCS8-2#TRPBF is suitable for applications such as DC-DC converters, switching power supplies, on-card regulators and PC power supplies. It is also a cost-effective high-current, high-precision voltage regulator. The controller leverages synchronous current mode architecture for excellent line and load regulation, and supports a wide range of applications such as 1A to 4A output current.

The device utilizes an external voltage reference as a reference to set the output voltage, and supplies a fixed output frequency of 300kHz or 500kHz. It features a PWM/PFM control scheme, and can operate in discontinuous conduction mode or forced PWM mode. Such flexible operation ensures excellent efficiency over a wide range of load currents, while minimizing audible operations. It also features current mode control, which makes it robust and reduces the effect of external load capacitance and board parasitics.

The LTC1550LCS8-2#TRPBF offers a comprehensive selection of protection features, such as OVP, OCP, and thermal protection. In addition, the device has a 10mV reference output to provide a stable reference for the over-voltage protection and a shutdown input for power save mode. This makes it an ideal solution for a variety of applications.

In short, the LTC1550LCS8-2#TRPBF is a cost-effective high-current, high-precision voltage regulator with an integrated current limit and protection functions to provide a reliable power solution. It is suitable for applications such as DC-DC converters, switching power supplies, on-card regulators, and PC power supplies, making it a versatile solution for a variety of applications.

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