TPS51117EVM

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The TPS51117EVM is an evaluation module designed to evaluate and demonstrate the operation of TI\'s TPS51117, a 2.6-A synchronous DC/DC buck converter. It integrates a high-efficiency inductor and heatsink to enable efficiency levels of up to 90%. The complete EVM has an adjustable output voltage range from 0.8 to 5.5 V and is also capable of developing up to 5.5 A of output current. The TPS51117EVM is designed to operate from an 8 to 16 V input voltage range.

The TPS51117EVM application field mainly includes telecom and datacom systems, embedded processor and DSP applications, computer power supplies, including workstations, servers, and desktop computers, automotive power systems, FPGA/ASIC/PLD systems, and industrial control systems.

The TPS51117EVM can be used for a variety of power supply applications due to its compact size, low noise, low cost, high efficiency, and integrated power switching circuitry. Because it is a high-efficiency, low-quiescent current DC/DC regulator, it can be used in battery-powered applications as well as applications requiring high efficiency such as DSPs. Additionally, because of its low noise performance, it is also suitable for applications that require low noise such as FPGAs or ASICs.

At its core, the TPS51117EVM contains a non-inverting buck converter circuit. The input voltage is applied through an input capacitor to a pair of series-connected NMOS transistors. The NMOS transistors form a switch that provides the current to the inductor. As current passes through the inductor, a voltage drop occurs due to the inductor\'s resistance, and a current in the opposite direction is induced in the inductor\'s secondary winding. This current is then delivered to the output capacitor and serves to regulate the output voltage.

The primary components of the TPS51117EVM are the TPS51117 synchronous DC-DC buck converter, a shielded inductor, and a thermal protection heatsink. In addition, a flexible choice of components such as external gate driver MosFETs, input and output capacitors, and shunt resistors can be used to monitor output voltage, current, or temperature.

The TPS51117 is designed to operate at an input voltage of 8 to 16 V, making it suitable for use with an automotive battery; this range can be extended to 4.5 to 24 V by using an external power MOSFET and shunt resistor in combination with selectable input capacitors. The TPS51117 is capable of generating output voltages from 0.8 to 5.5 V, while also supplying up to 5.5 A of continuous output current with efficiency > 90%.

The TPS51117EVM is designed for switch mode power supply applications. It integrates high-efficiency synchronous rectification converter components to enable power densities to be achieved while still maintaining high efficiency levels. It also enables the user to test and evaluate the performance of the TPS51117 buck converter under actual operating conditions.

This evaluation board includes the necessary components, such as a shielded power inductor and thermal protection heatsink, to enable the user to evaluate the TPS51117 buck converter in their particular applications. The TPS51117EVM can also be used with an adjustable output voltage for testing and optimizing multiple components and circuit designs.

The TPS51117EVM is also designed to provide the user with the ability to monitor and control the output voltage, current and temperature. The efficient synchronous DC/DC buck converter integrated into the TPS51117EVM can provide the user with optimal power conversion efficiency for their particular application.

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