LMZ14203 Simple Switch ? 6-V to 42-V, 3-A Power Module in SMT-TO Package

Features 1? Integrated shielded inductors and simple PCB layout Flexible startup using external SoftStart sequencing and precision enable? Protection against inrush current and faults such as input UVLO and output short circuit? -40°C to 125°C junction temperature range? Single exposure Pads and standard pinouts for ease of installation and fabrication? Fast transient response to fpga and asic? Low output voltage ripple? This compatible family:- LMZ1420x (42 V max 3, 2, 1 A) - LMZ1200x (20 V 3, 2, a, 1) max - Efficiency up to 90%? Performance advantage at high ambient temperatures No thermal derating - Efficient reduction of system thermal generation Low radiated emissions (Electromagnetic Interference (EMI)) Tested to EN55022 Class B Standard, 10 V/m Radiated Immunity EMI Test Standard EN61000 4-3? Use the LMZ14203 to create a custom design with WEBENCH? Power Designer

2 Applications - Load Transfer Points for 12-V and 24-V Input Rails - Space Constrained and High Thermal Demand Applications - Negative Output Voltage Applications (See AN-2027 SNVA425)

The LMZ14203 Simple Switching Power Module is an easy-to-use step-down DC-DC solution that can drive up to 3-A loads with excellent power conversion efficiency, line and load regulation, and output accuracy. The LMZ14203 is an innovative package that improves thermal performance and allows hand or machine soldering.

The LMZ14203 can accept input voltage rails between 6v and 42v and provide adjustable and highly accurate output voltages down to 0.8 V. The LMZ14203 requires only three external resistors and four external capacitors to complete the power solution. The LMZ14203 is a reliable and robust design with the following protection features: thermal shutdown, input UVLO, output overvoltage protection, short circuit protection, output current limit, and allows start-up to pre-biased output. A resistor to adjust the switching frequency to 1mhz