The ISL8216M module is targeted for 10 to 80V input voltage ranges. The module delivers 4A of output current; the output voltage is adjustable with a single resistor from 2.5 to 30V. The ISL8216M requires minimal design effort, all that is required is a single ISL8216M module, input and output capacitors, and a single resistor to program the output voltage. It is packaged in a thermally enhanced, compact (15mm × 15mm × 3.6mm) over-molded high-density array (HDA) package, which permits full load operation without heat sink or fans. Other features include: programmable switching frequency from 200kHz to 600kHz. The ISL8216M has an internally set fixed frequency of 300kHz. By adding an external resistor, RT, between VIN and RTCT pin and capacitor, CT, between RTCT pin and SGND, the ISL8216M can provide adjustable frequency from 200kHz to 600kHz. The ISL8216 may be configured to synchronize with an external clock. Programmable soft-start and overcurrent protection (OCP) is also provided. The overcurrent protection function protects the module from overcurrent conditions by monitoring the current flowing through the MOSFET. OCP is implemented via a resistor (ROCSET) and a capacitor (COCSET) connected between the OCSET pin and the drain of the MOSFET. An internal 104μA current source develops a voltage across ROCSET which is then compared with the drain to source voltage developed across the MOSFET measured with regard to the PHASE node. When the drain-to-source voltage across the MOSFET exceeds the voltage drop across the resistor, an OCP event occurs. Additionally, the ISL8216 module provides OV/UV and over temperature protection. If the ISL8216M’s junction temperature reaches a nominal temperature of +150 °C, the module will be disabled. The ISL8216M will not be re-enabled until the junction temperature drops below 110°C.