Fairchild XS™ High Performance
High Frequency DrMOS ModulesFairchild XS™ DrMOS Modules family are the next generation of fully optimized, ultra-compact, integrated MOSFET plus driver power stage solutions for high-current, high-frequency, synchronous buck DC-DC applications. These DrMOS Modules integrates a driver IC, two power MOSFETs and a bootstrap Schottky diode into a thermally enhanced, ultra compact 6x6mm PQFM package. An integrated approach gives a complete power stage that is optimized with regards to driver and MOSFET dynamic performance, system inductance, and power MOSFET RDS(ON). Fairchild's XS™ DrMOS uses high-performance PowerTrench® MOSFET technology, which dramatically reduces switch ringing, eliminating the need for a snubber circuit in most buck converter applications.
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| Area | Discrete
Solution | DrMOS
Solution | Remarks |
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| System Efficiency | Low | High | Due to optimization of internal components, DrMOS delivers higher efficiency compared to conventional discrete solutions. This helps designers to meet the higher efficiency demands from government regulatory programs such as Energy Star™. |
| Board Area | Large | Small | DrMOS reduces board area in more than 72%. |
| Switching Frequency | Low | High | Lower parasitics allow DrMOS to switch at higher frequencies, further reducing PCB area in severely space constrained applications. |
| Part Count | High | Low | DrMOS reduces part count in more than 33%, speeding up the process of component selection and qualification. |
| System Design | Difficult | Easy | DrMOS eliminates the need of designers to match the right driver IC with the right MOSFET combination. This reduces design time and accelerates time to market. Also, a DrMOS solution has fewer failure points than a conventional discrete solution. This reduces troubleshooting time and speeds up the overall product development cycle. |
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| Manufacturing Process | Good | Better | DrMOS solutions offer less pick and place time, less final test time and less raw material. |
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