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Aeroflex Circuit Technology - Dual Voltage Regulator

Numéro de référence VRG8688
Description Dual Voltage Regulator
Fabricant Aeroflex Circuit Technology 
Logo Aeroflex Circuit Technology 





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VRG8688 fiche technique
Standard Products
Datasheet
VRG8687/VRG8688
Dual Voltage Regulator, 3.0 Amp, Positive
Low Dropout (LDO), Adjustable
Radiation Tolerant
www.aeroflex.com/voltreg
April 9, 2014
FEATURES
Manufactured using
Space Qualified RH1084 die
Radiation performance
- Total dose > 100 krad (Si),
Dose rate = 50 - 300 rads(Si)/s
Two-Independent voltage regulators
Thermal shutdown
Output voltage adjustable: 1.25V to 23V
Dropout voltage: 1.80V at 3.0Amps
3-Terminal
Packaging – Hermetic metal
- Thru-hole or Surface mount
- 8 Leads, .755"L x .415"W x .200"Ht
- Power package
- Weight - 6 gm max
Designed for aerospace and high reliability space
applications
Output current: 3.0Amps
Voltage reference: 1.25V +2%, -3.2%
Load regulation: 0.35% max
Line regulation: 0.25% max
Ripple rejection: >60dB
Aeroflex Plainview’s Radiation Hardness Assurance Plan is DLA Certified to MIL-PRF-38534, Appendix G.
DESCRIPTION
The Aeroflex Plainview VRG8687/8688 consists of two Positive Adjustable (RH1084) LDO voltage regulators each
capable of supplying 3.0Amps over the output voltage range as defined under recommended operating conditions. The
VRG8687/8688 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 VRG8687/8688 serves a wide variety of applications including SCSI-2 Active Terminator, High Efficiency
Linear Regulators, Post Regulators for Switching Supplies, Constant Current Regulators, Battery Chargers and
Microprocessor Supply.
The VRG8687/8688 has been specifically designed to meet exposure to radiation environments. The VRG8687 is
configured for a Thru-Hole 8 lead metal power package and the VRG8688 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 VRG8687/8688 is ideal for demanding military and space applications.
Dropout (VIN - VOUT) decreases at lower load currents for both regulators.
SCD8687 Rev C
15
ADJ_1
ADJ_2
2 VOUT_1
VOUT_2
6
RH1084
Positive
Regulator
RH1084
Positive
Regulator
3
SENSE_1
SENSE_2
7
VIN_1
VIN_2
84
FIGURE 1 – BLOCK DIAGRAM / SCHEMATIC

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