The TPS54020 dc/dc converter is designed to provide up to 10-A output current. The TPS54020 implements split-input power rails with separate input voltage inputs for the power stage and control circuitry. The power stage input (PVIN) is rated for 1.6 V to 17 V whereas the control input (V_IN) is rated for 4.5 V to 17 V. This EVM provides connections for both inputs but is designed and tested using the PVIN connected to V_IN. The rated input voltage and output current range for the EVM are given in Table 1-1. This EVM is designed to demonstrate the small printed-circuit-board areas that can be achieved when designing with the TPS54020 regulator. The switching frequency is externally set by a resistor at a nominal 500 kHz. The high-side and low-side MOSFETs are incorporated inside the TPS54020 package along with the gate-drive circuitry. The low drain-to-source ON resistance of the MOSFET allows the TPS54020 to achieve high efficiencies and helps keep the junction temperature low at high output currents. The compensation components are external to the integrated circuit (IC), and an external divider allows for an adjustable output voltage. Additionally, the TPS54020 provides adjustable slow start and undervoltage lockout inputs. The absolute maximum input voltage is 20 V for the EVM, but the recommended maximum input voltage of 17 V should not be exceeded.