LMR23615 Synchronous Step-Down Converters

Texas Instruments' LMR23615 SIMPLE SWITCHER are easy-to-use 36 V, 1.5 A synchronous step-down regulators. With a wide input range from 4 V to 36 V, the devices are 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 75 µA makes the devices suitable for battery-powered systems. An ultra-low 2 µA shutdown current can further prolong battery life. Internal loop compensation means that the user is free from the tedious task of loop-compensation design and also minimizes the external components needed. An extended family is available in 2.5 A (LMR23625/LMR23625-Q1) and 3 A (LMR23630/LMR23630-Q1) load-current options in pin-to-pin compatible packages, allowing simple, optimum PCB layout. A precision enable-input allows simplification of regulator control and system power sequencing. Protection features include cycle-by-cycle current limit, hiccup-mode short-circuit protection, and thermal shutdown due to excessive power dissipation.