The TPSM365R6 is an easy-to-use, synchronous buck, DC-DC power module that operates from a 3-V to 65-V supply voltage. The device is intended for step-down conversions from 5-V, 12-V, 24-V, and 48-V supply rails. With an integrated power controller, inductor, and MOSFETs, the TPSM365R6 or TPSM365R3 delivers up to 600-mA DC load current with high efficiency and ultra-low input quiescent current in a very small design size. Although designed for simple implementation, this device offers flexibility to optimize the usage according to the target application. Control-loop compensation is not required, reducing design time and external component count. The TPSM365Rx can operate over a wide range of switching frequencies and duty ratios. If the minimum ON-time or OFF-time cannot support the desired duty ratio, the switching frequency gets reduced automatically, maintaining the output voltage regulation. With the right internal loop compensation the system design time with the TPSM365Rx reduces significantly with minimal external components. In addition, the PGOOD output feature with built-in delayed release allows the elimination of the reset supervisor in many applications. With a programmable switching frequency from 200 kHz to 2.2 MHz using the RT pin or an external clock signal. These features enable a flexible and easy-to-use platform for a wide range of applications. The pin arrangement is designed for a simple layout, requiring few external components.