The L6902D evaluation board integrates the step-down switching regulator with adjustable current limit L6902D as well as the external components required for a typical application. The input voltage of the application board can range from 8V up to 25V due to the rated voltage of the input capacitor and the schottky rectifier repetitive peak reverse voltage (both 25V). The external resistor divider (R1 and R2) sets the output voltage of the application board to 3.3V. A different output voltage can be regulated from 1.235V up to 10V, which is the rated voltage of the output capacitor. A current limit of 1A is programmed by the 100mΩ sense resistor Rsense. The inductor saturation current and the forward current of the schottky rectifier fit the current limit setting.
The EVAL6902D is an evaluation board that integrates the L6902D step-down switching regulator and necessary external components. It is designed to demonstrate a typical application using the chip.
The board supports input voltages ranging from 8V to 25V, regulated down to output voltages between 1.235V and 10V via an external resistor divider. The current limit is programmed to 1A by a specific sense resistor.
| Input voltage range | 8V up to 25V |
|---|---|
| Output voltage range | 1.235V up to 10V |
| Current limit setting | 1A |
The board can regulate an output voltage from 1.235V up to 10V.
The input voltage can range from 8V up to 25V.
A current limit of 1A is programmed by the sense resistor.