VRG8667 Datasheet, PDF (1/7 Pages) Aeroflex Circuit Technology – Dual Voltage Regulator, 1.0 Amp, Positive Ultra Low Dropout (ULDO), Adjustable Radiation Tolerant

Standard Products
Datasheet
VRG8667/VRG8668
Dual Voltage Regulator, 1.0 Amp, Positive
Ultra Low Dropout (ULDO), Adjustable
Radiation Tolerant
www.aeroflex.com/voltreg
March 17, 2014
FEATURES
 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.
Dropout (VIN - VOUT) decreases at lower load currents for both regulators.
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.
1
3
VCONTROL_1
VCONTROL_2
2
VIN_1
VIN_2
4
RH3080
Positive
Regulator
RH3080
Positive
Regulator
7
OUT_1
OUT_2
5
SET_1
SET_2
SCD8667 Rev C
8
6
FIGURE 1 – BLOCK DIAGRAM / SCHEMATIC