LMR14206

LMR14206 SNVS733D – OCTOBER 2011 – REVISED APRIL 2013 LMR14206 SIMPLE SWITCHER® 42Vin, 0.6A Step-Down Voltage Regulator in SOT-23 Check for Samples: LMR14206 All trademarks are the property of their respective owners. 1 Features 1 Input Voltage Range of 4.5V to 42V Output Voltage Range of 0.765V to 34V Output Vurrent up to 0.6A 1.25 MHz Switching Frequency Low Shutdown Iq, 16 µA Typical Short Circuit Protected Internally Compensated Soft-Start Function Thin 6-Pin SOT Package (2.97 x 1.65 x 1mm) Fully Enabled for WEBENCH® Power Designer 2 Performance Benefits Tight Accuracy for Powering Digital ICs Extremely Easy to Use Tiny Overall Solution Reduces System Cost 4 Description The LMR14206 is a PWM DC/DC buck (step-down) regulator. With a wide input range from 4.5V-42V, they are suitable for a wide range of applications such as power conditioning from unregulated sources. They feature a low RDSON (0.9Ω typical) internal switch for maximum efficiency (85% typical). Operating frequency is fixed at 1.25 MHz allowing the use of small external components while still being able to have low output voltage ripple. Soft-start can be implemented using the shutdown pin with an external RC circuit allowing the user to tailor the softstart time to a specific application. The LMR14206 is optimized for up to 600 mA load current with a 0.765V nominal feedback voltage. Additional features include: thermal shutdown, VIN under-voltage lockout, and gate drive under-volt...