VPT250-2800S DC-DC Converter

The VPT250 series of isolated COTS DC-DC converters is intended for harsh environments including severe vibration, shock and temperature cycling. A wide input voltage range accommodates nominal 28V inputs including avionics, mobile, ground systems and other applications.

Features:

  • Up to 250W output power
  • Input voltage range: 16 to 40V per MIL-STD-704 and MIL-STD-1275
  • Single outputs of 3.3V, 5V, 12V, and 15V
  • High efficiency –  up to 92%
  • Parallel up to 5 units with current sharing
  • Fixed frequency
  • 2000V isolation
  • Wide temperature range of -55 °C to +100 °C
  • Output voltage trim  (+10% /  -20%)
  • Six-sided rugged encapsulated epoxy V-SHIELD® package with integral metalized EMI shield
  • Fully compatible with aqueous cleaning processes
  • No optoisolators
  • Input transient voltage: 50V for 1 second

Compliances and Certifications:

  • MIL-STD-1275 when used with a VPTPCM-12
  • MIL-STD-704 input voltage requirements
  • MIL-STD-461C-F when used with a VPTF20 EMI filter
  • DEF STAN 61-5 and DEF STAN 59-411 when used with a VPTc10-28 EMI filter
  • Environmental screening to JESD22, MIL-STD-810, MIL-STD-883
  • J-STD-001, ISO-9001, IPC-A-610 Class 3 manufacturing facility

Summary Data

For complete specifications, please see the official datasheet.

To provide you with the most accurate data for the actual performance of this product once deployed, please note that the electrical performance data provided below is at Tcase = -55° C to 100° C, Vin= +28V +-5%, full load, unless otherwise specified.

Select a product to view its specifications:

ParameterConditionsVPT250-283R3SUnits
MinTypMax
Input
Voltage
Continuous
Transient(1)
162840
50
Vdc
Output
Voltage
Full Load3.2183.33.383Vdc
Output
Power(2)
Vin: 16-40V0 165W
EfficiencyVin: 28V,
Full Load
8588 %
Input
Ripple
Full Load,
20Hz to 10MHz
 300500mApp
Output
Ripple
Full Load,
20Hz to 10MHz
  150mVpp
Load
Regulation
No Load to
Full
  50mV
Line
Regulation
Vin: 16-40  20mV

ParameterConditionsVPT250-2805SUnits
MinTypMax
Input
Voltage
Continuous
Transient(1)
162840
50
Vdc
Output
Voltage
Full Load4.87555.125Vdc
Output
Power(2)
Vin: 16-40V0 250W
EfficiencyVin: 28V,
Full Load
8790 %
Input
Ripple
Full Load,
20Hz to 10MHz
 500700mApp
Output
Ripple
Full Load,
20Hz to 10MHz
  150mVpp
Load
Regulation
No Load to
Full
  50mV
Line
Regulation
Vin: 16-40  20mV

ParameterConditionsVPT250-2812SUnits
MinTypMax
Input
Voltage
Continuous
Transient(1)
162840
50
Vdc
Output
Voltage
Full Load11.71212.3
Vdc
Output
Power(2)
Vin: 16-40V0 250W
EfficiencyVin: 28V,
Full Load
8992 %
Input
Ripple
Full Load,
20Hz to 10MHz
 500700mApp
Output
Ripple
Full Load,
20Hz to 10MHz
  150mVpp
Load
Regulation
No Load to
Full
  100mV
Line
Regulation
Vin: 16-40  50mV

ParameterConditionsVPT250-2815SUnits
MinTypMax
Input
Voltage
Continuous
Transient(1)
162840
50
Vdc
Output
Voltage
Full Load14.6251515.375Vdc
Output
Power(2)
Vin: 16-40V0 250W
EfficiencyVin: 28V,
Full Load
8992 %
Input
Ripple
Full Load,
20Hz to 10MHz
 500700mApp
Output
Ripple
Full Load,
20Hz to 10MHz
  150mVpp
Load
Regulation
No Load to
Full
  100mV
Line
Regulation
Vin: 16-40  50mV

(1) Transient time up to 1 second.
(2) Derate linearly to 0 at 110 deg. C.