The is an efficient and versatile product from Texas Instruments, part of the SIMPLE SWITCHER® family and is a 40V, 0.6A, 2.1MHz step-down switching regulator module with Eco-mode™.

• Input Voltage Range: 4.5V to 42V
• Output Voltage: Fixed at 3.3V
• Efficiency: Up to 95% using a current-mode control scheme and 2.1MHz switching frequency
• Protection Features: Thermal shutdown, current limit, and input under-voltage lockout
• Package: 10-pin VSON, RoHS compliant
• Applications: Industrial, automotive, communications equipment, enterprise systems, and personal electronics

The LMR14203XMK/NOPB is a highly efficient and reliable switching regulator with a compact design, ideal for space-constrained applications.