Smart Power Stage (SPS) Module Family

Unequaled power density for DC-DC designs from Fairchild Semiconductor

Image of Fairchild's Smart Power Stage (SPS) Module FamilyFairchild Semiconductor's smart power stage (SPS) module family is a next-generation, ultra-compact, integrated MOSFET plus driver-power stage solution. This family leverages Fairchild's DrMOS expertise to deliver high-efficiency, high-power density, and high-switching frequency in applications such as synchronous buck DC-DC converters in high-performance computing and telecom.

With an integrated approach, the complete switching power stage is optimized for driver and MOSFET dynamic performance, system inductance, and power MOSFET RDS(ON). SPS modules use our high-performance PowerTrench® MOSFET technology to reduce ringing, eliminating the need for a snubber circuit in most buck converter applications.


  • Ultra-compact 5 mm x 5 mm x 0.8 mm PQFN with Dual Cool™ packaging technology
  • Three-state 3.3 V PWM and 5 V PWM input gate driver
  • Integrated Zero Cross Detect (ZCD) or FCCM circuitry for better light load efficiency
  • Dual-mode enable and catastrophic fault reporting pin
  • Under-voltage lockout (UVLO) protection
  • Optimized for switching frequencies, up to 2 MHz
  • Low shutdown current < 3 μA
  • Improved power stage dynamic performance, system inductance
  • PowerTrench® MOSFET technology to reduce ringing, eliminate snubber in most buck converter designs
  • Thermal monitoring, programmable thermal shutdown


  • Notebook, tablet PC, and ultrabook
  • Servers and workstations, VCORE and non-VCORE DC-DC converters
  • Desktop and all-in-one computers, VCORE and non-VCORE DC-DC converters
  • High-performance gaming motherboards
  • High-current DC-DC point-of-load converters
  • Networking and telecom microprocessor voltage regulators
  • Small form-factor voltage regulator modules

SPS Family

ImageManufacturer Part NumberDescriptionPart StatusOutput ConfigurationAvailable Quantity
FDMF3037 datasheet linkIC SPS HALF-BRIDGE DRVR 31PQFNFDMF3037IC SPS HALF-BRIDGE DRVR 31PQFNActiveHalf Bridge2580 - Immediate
FDMF3037 product page link
FDMF3033 datasheet linkIC HALF-BRIDGE DRVR PWM 31PQFNFDMF3033IC HALF-BRIDGE DRVR PWM 31PQFNActiveHalf Bridge3000 - Immediate
FDMF3033 product page link
FDMF5839 datasheet linkIC SPS HALF-BRIDGE DRVR 31PQFNFDMF5839IC SPS HALF-BRIDGE DRVR 31PQFNActiveHalf Bridge2998 - Immediate
FDMF5839 product page link
FDMF3035 datasheet linkIC SPS HALF-BRIDGE DRVR 31PQFNFDMF3035IC SPS HALF-BRIDGE DRVR 31PQFNActiveHalf Bridge2420 - Immediate
FDMF3035 product page link
FDMF5823DC datasheet linkIC SPS HALF-BRIDGE DRVR 31PQFNFDMF5823DCIC SPS HALF-BRIDGE DRVR 31PQFNActiveHalf Bridge11653 - Immediate
FDMF5823DC product page link
FDMF5822DC datasheet linkIC SPS HALF-BRIDGE DRVR 31PQFNFDMF5822DCIC SPS HALF-BRIDGE DRVR 31PQFNActiveHalf Bridge2906 - Immediate
FDMF5822DC product page link
FDMF5833 datasheet linkIC SPS HALF-BRIDGE DRVR 31PQFNFDMF5833IC SPS HALF-BRIDGE DRVR 31PQFNActiveHalf Bridge2887 - Immediate
FDMF5833 product page link
FDMF5826DC datasheet linkIC SPS HALF-BRIDGE DRVR 31PQFNFDMF5826DCIC SPS HALF-BRIDGE DRVR 31PQFNActiveHalf Bridge8283 - Immediate
12000 - Factory Stock
FDMF5826DC product page link
FDMF5820DC datasheet linkIC SPS HALF-BRIDGE DRVR 31PQFNFDMF5820DCIC SPS HALF-BRIDGE DRVR 31PQFNActiveHalf Bridge7407 - Immediate
FDMF5820DC product page link
FDMF5821DC datasheet linkIC SPS HALF-BRIDGE DRVR 31PQFNFDMF5821DCIC SPS HALF-BRIDGE DRVR 31PQFNActiveHalf Bridge1880 - Immediate
FDMF5821DC product page link
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Published: 2014-03-18