The LM34919 evaluation board provides the design engineer with a fully functional buck regulator, employing the constant on time (COT) operating principle. This evaluation board provides a 5V output over an input range of 8V to 40V. The circuit delivers load currents to 600 mA, with current limit set at a nominal 700 mA. The board is populated with all components except R5, C9 and C10. These components provide options for managing the output ripple as described later in the LM34919 Application Note.