SIMPLE SWITCHER®, 36V 2.5A Synchronous Step-Down Converter

The LMR23625 SIMPLE

SWITCHER is an easy-to-use 36-V, 2.5-A synchronous step-down regulator.

With a wide input range from 4 V to 36 V, the device is suitable for various

industrial application 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 it 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. This also minimizes the external

components. The device has an option for fixed-frequency FPWM mode to achieve small

output-voltage ripple at light load. An extended family for HSOIC is available in

1-A (LMR23610) and 3-A (LMR23630) load current options in pin-to-pin compatible

packages which allows 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.

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