The SBB series devices are designed to maximize efficiency in space applications including satellites requiring long mission life up to 15 years or 100Krads of total ionizing does (TID). The SBB series delivers high efficiency of up to 89%, allowing the

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RAD-Hard Non-Isolated Point of Load (POL) Voltage
Regulators
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DATA SHEETS
The SBB series devices are designed to maximize
efficiency in space applications including
satellites requiring long mission life up to 15
years or 100Krads of total ionizing does (TID).
The SBB series delivers high efficiency of up to
89, allowing the use of a smaller heatsink to
reduce overall size and weight of the system.
The new devices suitable for designs using new
digital signal processors, ASIC and FPGA
technologies feature 30W output power or output
current of 14A.
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• Advantages
• With high efficiency performance well suited to
  the high power requirements of two-stage
  distributed power architecture design
  applications, the SBB series addresses the
  ongoing need to reduce size and weight, as well
  as the increasing needs of FPGA and other digital
  circuitries for increased bandwidth, data
  processing speed and the higher processing power
  requirements of digital electronics onboard
  spacecraft.
• Weighing less than 60 grams in a compact form
  factor, other key features of the new devices
  include 4.5 to 5.5V input range, SEE LET (Heavy
  Ions) greater than 82 MeV.cm2/mg, under voltage
  lockout (UVLO), remote sense compensation,
  adjustable output voltage, power OK (POL) status
  and remote on and off control.
• A fixed frequency non-isolated synchronous buck
  regulator topology is included to maximize
  efficiency. An internal input EMI filter is
  included to minimize the switching ripple
  currents. No external filter components are
  required for typical design applications.

• Features
• 4.5 to 5.5V input range
• 30W output or up to 14A operating current without
  power de-rating
• Total Ionization Dose gt 100K Rad (Si)
• SEE LET (Heavy Ions) gt 82 MeV.cm2/mg
• Integrated input and output filters for low noise
  performance and stand-alone operations
• Standard output voltages include 1.0, 1.2, 1.5,
  1.8, 2.5 and 3.3V
• Remote sense compensation
• Remote on/off command
• High efficiency up to 89
• Adjustable output voltage for precise output
  setting
• Low weight, lt 60 grams
• Compact form factor with low profile package,
  2.4 x 2.0 x 0.335H, including I/O pins and
  mounting tabs

October 2010