The LMZ14203EXT SIMPLE
SWITCHER,sup>® power module is an easy-to-use step-down DC-DC solution capable of driving up
to 3-A load with exceptional power conversion efficiency, line and load regulation, and output
accuracy. The LMZ14203EXT is available in an innovative package that enhances thermal performance
and allows for hand or machine soldering.
The LMZ14203EXT can accept an input voltage rail between 6 V and 42 V and can deliver an
adjustable and highly accurate output voltage as low as 0.8 V. The LMZ14203EXT only requires three
external resistors and four external capacitors to complete the power solution. The LMZ14203EXT is
a reliable and robust design with the following protection features: thermal shutdown, input
undervoltage lockout, output overvoltage protection, short circuit protection, output current
limit, and the device allows start-up into a prebiased output. A single resistor adjusts the
switching frequency up to 1 MHz.
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