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Home » NEWEST Products » New by Manufacturer » STMicroelectronics » STMicroelectronics STBB1 Buck-Boost Conveter
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STMicroelectronics STBB1 Buck-Boost Conveter

The STMicroelectrics STBB1 Buck-Boost Converter is a fixed frequency, high efficiency DC/DC converter that can provide output voltage ranging from 1.2 V to 5.5 V and input voltages from 2.0 V to 5.5 V. The STBB1 Buck-Boost Converter can operate with input voltages higher than, equal to, or lower than the output voltage make the product suitable for sinlge lithium-Ion, multicell alkaline or NiMH applications where the output voltage is within the battery voltage range. The STMicroelectrics STBB1 Buck-Boost Converter also includes a soft-start control, thermal shutdown and current limit.

  • Buck-boost DC-DC converter
  • Operating input voltage range from 2.0 V to 5.5 V
  • 2% DC feedback voltage tolerance
  • Synchronous rectification
  • Shutdown function
  • 1.5 MHz switching frequency
  • Power save mode at light load
  • Typical efficiency: > 94 %
  • 1 A output current capability
  • Shutdown current < 1 μA
  • Available in DFN10 (3 x 3 mm)
  • Single cell Li-Ion and 3 cells alkaline, Ni-MH powered devices
  • SD/MMC memory card supply
  • Palmtop computers
  • Cell phones
  • Digital cameras

Additional Resources

STTBB1-AXX Product Info
STBB1XX & STBB1-AXX Block Diagram
  • STMicroelectronics
  • Semiconductors|Integrated Circuits|IC-Power Management