Rad Hard 2.0A Switching Regulator

Product Announcement from M.S. Kennedy Corp.

Rad Hard 2.0A Switching Regulator -Image

The MSK 5053RH is a radiation hardened 2MHz adjustable output voltage switching regulator. A wide input and output voltage range with a 2.0A output current capability make these regulators suitable for a wide variety of applications. The adjustable switching frequency allows the end user to select the frequency that maximizes the device performance in the given application. The switching frequency can be fixed at a chosen frequency with a single resistor or synchronized via the SYNC pin. The MSK 5053RH simplifies design of high efficiency radiation hardened switching regulators that use a minimum amount of board space. The MSK 5053RH is hermetically sealed in a 40 pin flatpack with straight or Gull wing leads and is specifically designed for space/satellite applications.


  • Manufactured using Space Qualified RH3480 Dice
  • Total Dose Hardened 100 Krad (Method 1019.7 Condition A)
  • Programmable Fixed Frequency or Synchronizable up to 2MHz
  • 2.0A Integrated Switch
  • Internal Slope Compensation
  • Input Voltage Range from 3.6V to 36V
  • Cycle by Cycle Current Limit
  • Output Voltages Down to 0.79V
  • External Compensation
  • Power Good Indicator
  • RUN/SS Pin for Power Sequencing and Rise Time Control
  • Contact MSK for MIL-PRF-38534 Qualification Status


  • POL Applications
  • Satellite System Power Supply
  • Step Down Switching Regulator
  • Microprocessor, FPGA Power Source
  • High Efficiency low Voltage
  • Subsystems Power Supply
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