The TPS62873-Q1 device is a high-frequency, synchronous step-down converter optimized for a small solution size and high efficiency. The devices focus on high-efficiency, step-down conversion over a wide output current range. At medium to heavy loads, the converter operates in PWM mode and automatically enters power save mode operation at light load to maintain high efficiency over the entire load-current range. The device is available in a 2.55-mm × 3.55-mm, 16-pin VQFN package.

Table 2-1 provides a summary of the TPS62873EVM-143 performance specifications.

The printed-circuit board (PCB) for this EVM is designed to accommodate the different output current versions of this integrated circuit (IC). On the EVM, additional output capacitors can be added, the default output voltage can be changed, and the switching frequency can be modified.

Footprints for additional input capacitors and additional output capacitors are provided. These capacitors are not required for proper operation, but can be used to reduce the input and output voltage ripple and to improve the load transient response. For proper operation, the total output capacitance must remain within the recommended range described in the TPS6287x-Q1 Low Input Voltage, Adjustable-Frequency Step-Down Converter data sheet.