TPS568230 dc/dc converter is a synchronous buck converter designed to provide up to a 8-A output. The input (VIN) is rated for 4.5 V to 18 V. The TPS568230 uses a proprietary DCAP3 Control mode. Rated input voltage and output current range for the evaluation module are given in Table 1-1. The high-side and low-side MOSFETs are incorporated inside the TPS568230 package along with the gate-drive circuitry. An external divider allows for an adjustable output voltage. Additionally, the TPS568230 provides 1.3ms internal soft start or external soft start, under voltage lockout inputs and a power good output.

A summary of the TPS568230EVM performance specifications is provided in Table 2-1. Specifications are given for an input voltage of VIN = 12 V and an output voltage of 1.05 V, unless otherwise specified. The TPS568230EVM is designed and tested for VIN = 4.5 V to 18 V. The ambient temperature is 25°C for all measurements, unless otherwise noted.

TPS568230 supports 9 different kinds of mode by selecting divider resister on mode pin. Please refer Table 2-2.

In this TPS568230EVM board, mode can be selected to 600kHz ECO, 600kHz OOA or 600kHz FCCM by Mode Jumper. If you want to select other mode, please replace mode divider resister according to below table.

This section presents the TPS568230EVM schematic and List of Materials.

Figure 3-1 Schematic