MAX15026CETD+ (MAXIM INTEGRATED PRODUCTS)

The MAX15026CETD+ is a low cost, small, DC to DC synchronous buck controller in 14 pin TDFN package. The device operates from a 4.5V to 28V input voltage range and generates an adjustable output voltage from 85% of input voltage down to 0.6V while supporting loads up to 25A. It allows monotonic start-up into a prebiased bus without discharging output and features adaptive internal digital soft-start. The MAX15026 offers ability to adjust switching frequency from 200KHz to 2MHz with an external resistor. An adaptive synchronous rectification eliminates the need for an external freewheeling schottky diode. The device also utilizes external low side MOSFET's on-resistance as a current sense element eliminating the need for a current sense resistor. This protects DC to DC components from damage during output overloaded conditions or output short circuit faults without requiring current sense resistor. Hicc-up mode current limit reduces power dissipation during short circuit conditions.