The LMR14050-Q1 is a 40 V, 5 A step down regulator with an integrated high-side MOSFET.
With a wide input range from 4 V to 40 V, it’s suitable for various applications from industrial to
automotive for power conditioning from unregulated sources. An extended family is available in 2 A
and 3.5 A options in pin-to-pin compatible packages, including LMR14020-Q1 and LMR14030-Q1. The
regulator’s quiescent current is 40 µA in Sleep-mode, which is suitable for battery powered
systems. An ultra-low 1 µA current in shutdown mode can further prolong battery life. A wide
adjustable switching frequency range allows either efficiency or external component size to be
optimized. Internal loop compensation means that the user is free from the tedious task of loop
compensation design. This also minimizes the external components of the device. A precision enable
input allows simplification of regulator control and system power sequencing. The device also has
built-in protection features such as cycle-by-cycle current limit, thermal sensing and shutdown due
to excessive power dissipation, and output overvoltage protection.
The LMR14050-Q1 is available in an 8-pin HSOIC or 10-pin WSON package with exposed pad
for low thermal resistance.
