SCD8667 Rev C



Manufactured using

Space Qualified RH3080 die



Radiation performance

 Total dose:

100 krads(Si), Dose rate = 50 - 300 rads(Si)/s

 ELDRS:

50 krads(Si), Dose rate <

0.01 rads(Si)/s



Two-Independent voltage regulators



Current Limit with Foldback



Over-temperature protection



Output voltage adjustable: 0V to 36V



Outputs may be paralleled for higher current



Post Radiated Dropout voltage:

 0.60V @ 1.0Amps

 0.39V @ 0.5Amps



Output current: 1.0Amps



Packaging – Hermetic Meter Power Package

 Thru-hole or Surface mount

 8 Leads, .755"L x .415"W x .200"Ht

 Weight - 6 gm max



Designed for aerospace and high reliability space applications



Aeroflex Plainview’s Radiation Hardness Assurance Plan is DLA Certified to MIL-PRF-38534, Appendix G.

DESCRIPTION

The Aeroflex Plainview VRG8667/8668 consists of two Positive Adjustable (RH3080) ULDO voltage

regulators each capable of supplying 1.0Amps over the output voltage range as defined under

recommended operating conditions. The VRG8667/8668 offers excellent line and load regulation

specifications and ripple rejection. There is full electrical isolation between the regulators and each

regulator to the package.

The VRG8667/8668 has been specifically designed to meet exposure to radiation environments. The

VRG8667 is configured for a Thru-Hole 8 lead metal power package and the VRG8668 is configured for a

Surface Mount 8 lead metal power package. It is guaranteed operational from -55°C to +125°C. Available

screened in accordance with MIL-PRF-38534, the VRG8667/8668 is ideal for demanding military and

space applications.

For detailed performance characteristic curves, applications information and typical applications see the

latest

Linear Technology Corporation ® data sheets for their RH/LT3080, which is available

on-line at www.linear.com.

Radiation Tolerant

FIGURE 1 – BLOCK DIAGRAM / SCHEMATIC

March 17, 2014

www.aeroflex.com/voltreg

Standard Products

FEATURES

VRG8667/VRG8668

Dual Voltage Regulator, 1.0 Amp, Positive

Ultra Low Dropout (ULDO), Adjustable

6

3

8

1

2

4

RH3080

Positive

Regulator

RH3080

Positive

Regulator

7

5

Datasheet