The MFP (Maximum Flexible Power) Series™ DC-DC converters do not require any external components to achieve all specified performance levels. They are a high-reliability, high-efficiency point of load converter for use with a 3.3 volt input bus or a 5.0 volt input bus with an undervoltage shutdown below 3.0 volts and an overvoltage shutdown above 6.0 volts. The MFP0507S model has the flexibility to be set for any output voltage from 0.64 to 3.5 volts. The converter can withstand up to a 15 volts transient for up to 1 second.

The non-isolated, feature-rich MFP uses a Buck converter design with synchronous rectification. The design allows the unit to operate synchronously to no output load, ensuring high efficiency at the lightest loads without switching off the synchronous devices. Important features include a solid state switch, inrush current limiting, synchronization with an external system clock and the ability to current share allowing multiple devices to supply a common load.

The MFP includes an internal house keeping supply that is active at inputs as low as 2 volts and provides a boosted and regulated voltage supply for internal use. This internal supply is one of the reasons that this product can provide full power at very high efficiency at input voltages as low as 3 volts. No external power source or external bias is required.

The MFP converters are designed for the large, fast transient load currents typical to digital loads.

Features:

  • Radiation tolerant space DC-DC converter
    • Single event effects (SEE) LET performance to 85 MeV cm2/mg
    • Total ionizing dose (TID) guaranteed per MIL-STD-883 method 1019, radiation hardness assurance (RHA) P = 30 krad(Si), L = 50 krad(Si), R = 100 krad(Si)
    • 50 – 300 rad(Si)/sec dose rate (Condition A)
    • LDR tested to 30 krad at 10 mrad(Si)/sec dose rate (Condition D)
  • No external components required
  • Up to 92% typical efficiency, flat down to 30% load
  • Qualified up to MIL-PRF-38534 Class K
  • Input voltage range 3.0 to 6.0 volts dc
  • Input transient survivability to 15 volts for up to 1 sec.
  • Inhibit and sync functions
  • Current monitoring
  • Current sharing pin for parallel operation
  • Four pin-selectable, preset voltages
    • 0.8, 1.6, 2.5 and 3.3
  • Output voltage continuously adjustable
    • from 0.8 to 3.5 volts with resistors
  • Indefinite output short circuit protection
  • Adjustable start-up sequencing
  • Remote sense and voltage margining
  • Internal solid state power switch provides many benefits including inrush current limiting