XRP7657EVB: 3.3V @ 2A, 4.75 ~ 25V in

The XRP7657 is a non synchronous voltage mode PWM step down (buck) regulator capable of a constant output current up to 2 Amps. A wide 4.75V to 25V input voltage range allows for single supply operations from industry standard 5V, 12V and 24V power rails.

With a 420kHz constant operating frequency and integrated high side switch, the XRP7657 reduces the overall component count and solution footprint. In addition to a 2% output setpoint accuracy, this device provides high efficiency, low ripple and excellent line and load regulation. An enable function and soft start feature allow for controlled power up sequencing implementation.

Upon powering up the input supply to the board, a regulated VOUT of 3.3V will be produced. The evaluation board will startup and regulate the VOUT without a load.

Although the evaluation board is optimized for 12V input voltage operations, it should regulate VOUT for VIN ranging from 9V to 20V (see datasheet graphs for maximum output current as a function of VIN).