MAX15041ETE+T

The MAX15041ETE+T from Analog Devices is a low-cost, synchronous DC-DC buck converter with integrated switches, delivering up to 3A of continuous output current. It operates across a wide input voltage range of 4.5V to 28V and offers an adjustable output voltage from 0.606V up to 90% of VIN, set using two external resistors.

This device features a peak-current-mode PWM controller with a fixed 350kHz switching frequency, ensuring cycle-by-cycle current limiting and fast transient response. The integrated MOSFETs provide high efficiency, up to 93%, while minimizing EMI and board space. It includes essential protection features such as thermal shutdown and overcurrent protection, along with an internal 5V LDO with undervoltage lockout.

The MAX15041ETE+T is designed for applications like distributed power systems, preregulation, set-top boxes, and consumer electronics. It supports safe startup into prebiased outputs and features externally adjustable soft-start for controlled inrush current. The device is available in a space-saving, thermally enhanced 3mm x 3mm, 16-pin TQFN-EP package and is fully specified for operation from -40°C to +85°C.

Key electrical specifications include a 4.5V to 28V input range, adjustable output voltage, 3A output current capability, and a 350kHz switching frequency. The regulator offers ±1% output accuracy over temperature and utilizes internal switches with typical RDS(ON) of 170mΩ for the high-side and 105mΩ for the low-side.