The LMR14006 and LMR16006 are PWM DC/DC buck (step-down) regulators. With a wide input range from 4 V to 40 V or 60 V, they are suitable for a wide range of applications from industrial to automotive for power conditioning from unregulated sources. The regulator’s standby current is 28 µA for sleep mode, which is suitable for battery operating systems. A low 1 µA current can further prolong battery life in shutdown mode. Operating frequency is fixed at 1.1 MHz (X version) and 2.1 MHz (Y version), allowing the use of small external components while still being able to have low output ripple voltage. Soft-start and compensation circuits are implemented internally, and these allow the device to be used with minimized external components. The LMR14006 is optimized for up to 600 mA load current and has 0.765 V nominal feedback voltage. The device has built-in protection features such as pulse by pulse current limit, thermal sensing and shutdown due to excessive power dissipation. The LMR14006 is available in a low profile TSOT-6L package.