The TPS548C26EVM is an evaluation module for the TPS548C26 DC/DC synchronous buck converter. The evaluation module accepts an 8-V to 16-V input and can deliver an output current up to 35 A. The converter uses D-CAP+™ control scheme for fast transient response, using less output capacitance to save board space. Rated input voltage and output current range for the evaluation module are given in Table 1-1. Figure 1-1 highlights the user interface items associated with the EVM.

The high-side and low-side MOSFETs are incorporated inside the package along with the gate-drive circuitry. The low drain-to-source on-resistance of the MOSFET allows the to achieve high efficiencies and helps keep the junction temperature low at the rated output current. Fixed frequency advanced current mode control allows you to synchronize the regulators to an external clock source. An external divider allows for an adjustable output voltage. The FSEL and MODE pins provide selectable switching frequency, soft-start time, current limit, and internal compensation. Lastly, the TPS548C26 includes an enable pin and a power-good output which can be used for sequencing multiple regulators.

Figure 1-1 EVM User Interface

The following warnings and cautions are noted for the safety of anyone using or working close to the TPS548C26EVM. Observe all safety precautions.

Warning

The TPS548C26EVM can become hot during operation due to dissipation of power in some operating conditions. Avoid contact with the board. Follow all applicable safety procedures applicable to your laboratory.

Table 2-1 provides a summary of the TPS548C26EVM performance characteristics. The TPS548C26EVM is designed and tested for V_IN = 8 V to 16 V. Characteristics are given for an input voltage of V_IN = 12 V and output voltage of 3.3 V, unless otherwise specified. The ambient temperature is room temperature (20°C to 25°C) for all measurements, unless otherwise noted.