FDMF8705

FDMF8705 Driver plus FET Multi-chip Module April 2007 FDMF8705 Driver plus FET Multi-chip Module Benefits „ Fully optimized system efficiency. Higher efficiency levels are achievable compared with conventional discrete components. „ Space savings of up to 50% PCB versus discrete solutions. „ Higher frequency of operation. „ Simpler system design and board layout. Reduced time in component selection and optimization. tm General Description The FDMF8705 is a fully optimized integrated 12V Driver plus MOSFET power stage solution for high current synchronous buck DC-DC applications. The device integrates a driver IC and two Power MOSFETs into a space saving, 8mm x 8mm, 56-pin Power88™ package. Fairchild Semiconductor’s integrated approach optimizes the complete switching power stage with regards to driver to FET dynamic performance, system inductance and overall solution ON resistance. Package parasitics and problematical layouts associated with conventional discrete solutions are greatly reduced. This integrated approach results in significant board space saving, therefore maximizing footprint power density. This solution is based on the Intel™ DrMOS specification. Features „ 12V typical Input Voltage „ Output current up to 18A „ 500KHz switching frequency capable „ Internal adaptive gate drive „ Integrated bootstrap diode „ Peak Efficiency >85% „ Under-voltage Lockout „ Output disable for lost phase shutdown „ Low profile SMD package „ RoHS Compliant Applications „ Deskto...