Synchronous step-down converter is suitable for various industrial applications

The Texas Instruments LMR23615 SIMPLE SWITCHER is an easy-to-use 36V, 1.5A synchronous step-down regulator. With a wide input range from 4V to 36V, the device is suitable for various industrial applications for power conditioning from unregulated sources. Peak current mode control is employed to achieve simple control-loop compensation and cycle-by-cycle current limiting. A quiescent current of 75µA makes the device suitable for battery-powered systems. An ultra-low 2µA shutdown current can further increase battery life. Internal loop compensation signifies that the user is free from the tedious task of loop-compensation design and also minimises the external components needed. An extended family is available in 2.5A (LMR23625) and 3A (LMR23630) load-current options in pin-to-pin compatible packages, enabling simple, optimum PCB layout. A precision enable input permits simplification of regulator control and system power sequencing. Protection options include cycle-by-cycle current limit, hiccup-mode short-circuit protection, and thermal shutdown due to excessive power dissipation.