MaxLinear's XRP7659 is a non-synchronous PWM step-down (buck) voltage regulator capable of delivering an output current up to 1.5 A. A wide 4.5 V to 18 V input voltage range allows for single supply operation from industry standard 5 V, 9.6 V, and 12 V power rails.

With a 1.4 MHz fixed operating frequency and current-mode control architecture, it provides fast transient response and achieves conversion efficiencies as high as 92%. An integrated soft-start prevents inrush current at turn-on, and in shutdown mode the supply current drops to 0.1 µA.

The XRP7659 offers the following protection schemes: output over voltage (open load), thermal shut-down, cycle-by-cycle over-current limit, and under voltage lockout (UVLO).