Synchronous step-down DC-DC converter comes with integrated MOSFETs

Maxim MAX17245 Synchronous Step-Down DC-DC Converter, available from Mouser, comes with integrated MOSFETs and operates over a 3.5V to 36V input voltage range with 42V input transient protection. The converter can operate in dropout condition by running at 98% duty cycle. They deliver up to 3.5A and generate fixed output voltages of 3.3V/5V, along with the ability to program the output voltage between 1V to 10V. It uses a current-mode control architecture. The devices can operate in pulse-width modulation (PWM) or pulse-frequency modulation (PFM) control schemes. PWM operation provides constant frequency operation at all loads, and is useful in applications sensitive to switching frequency. PFM operation disables negative inductor current and additionally skips pulses at light loads for high efficiency.