TPS5420EVM-175: 5V @ 2.5A, 10 ~ 36V

This user's guide contains background information for the TPS5420 as well as support documentation for the TPS5420EVM-175 evaluation module (HPA175). Also included are the performance specifications, the schematic, and the bill of materials for the TPS5420EVM-175.

The TPS5420 dc/dc converter is designed to provide up to a 2-A continuous, 3-A peak output from an input voltage source of 5.5 V to 36 V. Rated input voltage and output current range for the evaluation module is given in Table 1.

This evaluation module is designed to demonstrate the small printed-circuit-board areas that may be achieved when designing with the TPS5420 regulator and does not reflect the high input voltages that may be used when designing with this part. The switching frequency is internally set at a nominal 500 kHz. The high-side MOSFET is incorporated inside the TPS5420 package along with the gate drive circuitry.

The low drain-to-source on resistance of the MOSFET allows the TPS5420 to achieve high efficiencies and helps to keep the junction temperature low at high output currents. The compensation components are provided internal to the integrated circuit (IC), whereas an external divider allows for an adjustable output voltage. Additionally, the TPS5420 provides an enable input. The absolute maximum input voltage is 36 V.