The TPSM265R1 converter 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 3.3-V, 5-V, 12-V, 24-V, and 48-V unregulated, semi-regulated, or fully-regulated supply rails. With integrated power controller, inductor, and MOSFETs, the TPSM265R1 delivers up to 100-mA DC load current, with high efficiency and ultra-low input quiescent current, in a very small solution size. Although designed for simple implementation, this device offers flexibility to optimize its usage according to the target application. Operation in pulse frequency modulation (PFM) mode achieves exceptional light-load efficiency performance. Control-loop compensation is not required, reducing design time and external component count.

The TPSM265R1 incorporates several features for comprehensive system requirements, including an open-drain Power Good circuit for power-rail sequencing and fault reporting, internally-fixed, or externally-adjustable soft start, monotonic start-up into prebiased loads, precision enable with customizable hysteresis for programmable line undervoltage lockout (UVLO), and thermal shutdown with automatic recovery. These features enable a flexible and easy-to-use platform for a wide range of applications. The pin arrangement is designed for simple layout, requiring as few as two external components.