LMR14006

LMR14006 SNVSA10B – NOVEMBER 2013 – REVISED NOVEMBER 2014 LMR14006 SIMPLE SWITCHER® 40 V 600 mA Buck Regulator With High Efficiency Sleep Mode 1 Features 1 Ultra Low 28 µA Standby Current in Sleep Mode Input Voltage Range 4 V to 40 V 1 µA Shutdown Current High Duty Cycle Operation Supported Output Current up to 600 mA 1.1 MHz and 2.1 MHz Switching Frequency Internal Compensation High Voltage Enable Input Internal Soft Start Over Current Protection Over Temperature Protection Small Overall Solution Size (TSOT-6L Package) 2 Applications Industrial Distributed Power Systems Automotive Battery Powered Equipment Portable Handheld Instruments Portable Media Players 3 Description The LMR14006 is a PWM DC/DC buck (step-down) regulator. With a wide input range of 4 V-40 V, it is suitable for a wide range of application from industrial to automotive for power conditioning from an unregulated source. The regulator’s standby current is 28 µA in sleep mode, which is suitable for battery operating systems. An ultra 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 which...