TPS5124DBT

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TPS5124DBT is a family of DC/DC switching controllers that offer high efficiency and low quiescent current over a wide input voltage range of 3.5V to 19V. The family includes a variety of features, such as transient response, programmable frequency, and a wide range of output voltage choices to accomplish many tasks. Its main applications include LCD display systems, automotive, communications, and portable media applications.

The TPS5124DBT is a family of advanced DC/DC switching controllers that combines a programmable switching frequency (up to 800 kHz) with a synchronizable external clock input and configurable internal current-limit protection. The wide operating temperature range allows the device to operate in both high and low ambient operating temperature conditions.

The TPS5124DBT switching controller is designed to be used as a buck converter, with a constant on-time (COT) control loop, operating in the discontinuous conduction mode (DCM). This converter is particularly suitable for applications in both the synchronous and asynchronous buck topologies. PWM control schemes are also supported, for higher efficiency buck applications. The TPS5124B can also be used in buck-boost, forward, and push-pull topologies.

The TPS5124DBT has high efficiency across a wide range of input voltages and output currents. The high efficiency of the TPS5124DBT enables a wide range of applications that require high power supply efficiency. The device supports light-load current mode operation down to 2 mA, minimizing the total power consumption at low load currents. That capability makes it suitable for low-power applications, such as microcontroller systems, LCD displays and PoE (Power over Ethernet) applications.

The TPS5124DBT features programmable frequency and is synchronizable to an external clock, which allows the switching frequency to be adjusted according to the system\'s requirements. This ensures the highest efficiency possible for any given application. In addition, the programmable frequency allows for optimized designs which can take advantage of scaling the current limit and/or the sense resistor to reduce component size in applications such as LCD backlighting and battery-powered systems.

The TPS5124DBT has built-in protection features, including overheating protection, undervoltage lockout, and overcurrent protection. This helps protect the device, as well as the system being powered, from possible faults and system conditions outside the normal operating range.

In conclusion, the TPS5124DBT is a highly efficient and feature-rich DC/DC switching controller, ideal for a range of applications including LCD displays, automotive, communications, and portable media applications. Its wide range of features and wide range of supported topologies make it a versatile solution for applications that require a high efficiency, feature-rich DC/DC switching controller.

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