Document
Standard Products
Datasheet
VRG8653/VRG8654
Dual Voltage Regulator, 3.0Amp, Positive&Negative
Low Dropout (LDO), Adjustable
Radiation Tolerant
www.aeroflex.com/voltreg April 10, 2014
FEATURES
Manufactured using
Space Qualified RH1084 and RH1185 die
Radiation performance - Total dose > 100 krad (Si)
Two-Independent voltage regulators
Thermal shutdown Adjustable Output Voltages
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
Positive regulator features (RH1084) – Output voltage adjustable: 1.25V to 23V – Dropout voltage: 1.80V at 3.0A – 3-Terminal – Output current: 3.0A – Voltage reference: 1.25V +2%, -3.2% – Load regulation: 0.35% max – Line regulation: 0.25% max – Ripple rejection: >60dB
Negative regulator features (RH1185) – Output voltage adjustable: -2.37 to -25V – Dropout voltage: 1.05V at 3.0A – 5-Terminal – Output current: 3.0A – Voltage reference: -2.370V ±3.5% – Load regulation: 0.8% max – Line regulation: 0.02% max – Ripple rejection: >60dB
Aeroflex Plainview’s Radiation Hardness Assurance Plan is DLA Certified to MIL-PRF-38534, Appendix G.
DESCRIPTION
The Aeroflex Plainview VRG8653/54 consists of one Positive Adjustable (RH1084) and one Negative Adjustable (RH1185) LDO voltage regulator, both capable of supplying 3.0Aover the output voltage range as defined under recommended operating conditions. The VRG8653/54 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 VRG8653/54 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 VRG8653/54 has been specifically designed to meet exposure to radiation environments and is configured for a Thru-Hole 8 lead metal power package and the VRG8654 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 VRG8653/54 is ideal for demanding military and space applications.
Dropout (VIN - VOUT) decreases at lower load currents for both regulators.
SCD8653 Rev D
13
ADJ RH1084 7 VOUT
VOUT RH1185 VIN
RF
4 2
FB 6 VIN GND
8 Positive Regulator
Negative Regulator
5
FIGURE 1 – BLOCK DIAGRAM / SCHEMATIC
ABSOLUTE MAXIMUM RATINGS
Parameter
RH1084
Rating
RH1185
Units
Input Voltage Lead temperature (soldering 10 Sec)
+25 -35 300
VDC °C
Input Output Differential Load Current, maximum Feedback & Reference Voltage Output Voltage ESD (MIL-STD-883, M3015, Class 2) Operating Junction Temperature Range Storage Temperature Range
25 +6.0
+25
2000 to 3999 -55 to +150 -65 to +150
30 -4.5 -7 -30
VDC A
VDC VDC
V °C °C
Thermal Resistance (Junction to Case) JC
5 °C/W
NOTICE: Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress rating only; functional operation beyond the "Operation Conditions" is not recommended and extended exposure beyond the "Operation Conditions" may effect device reliability.
RECOMMENDED OPERATING CONDITIONS
Parameter
Output Voltage Range Input Output Differential Case Operating Temperature Range
Range
RH1084
RH1185
1.25 to 23
-2.37 to -25
1.8 to 24
1.05 to 29
-55 to +125
Units
VDC VDC °C
ELECTRICAL PERFORMANCE CHARACTERISTICS
UNLESS OTHERWISE SPECIFIED: -55°CTC+125°C
Parameter
Symbol
Conditions (P PMAX)
RH1084 Positive LDO section only 1/
Reference Voltage 2/, 3/
VREF 1.5V < (VIN - VOUT)< 15V, 10mA < IOUT < 3.0A
Line Regulation 2/, 3/
VOUT VIN
ILOAD = 10mA, 1.5V < (VIN - VOUT) < 15V
Load Regulation 2/, 3/
Dropout Voltage 2/, 4/ Dropout Voltage Adjust Pin Current 2/ Adjust Pin Current Change 2/ Minimum Load Current 5/ Current Limit
Ripple Rejection 3/
Thermal Regulation
VOUT IOUT
10mA < IOUT < 3.0A, (VIN - VOUT) = 3V
VDROP1 VREF = 1%, IOUT = 5.0A
VDROP2 VREF = 1%, IOUT = 3.0A
-
- 10 mA < IOUT < 3.0A, 1.5V < (VIN - VOUT) < 15V
IMIN (VIN - VOUT) = 25V
ICL (VIN - VOUT) = 5V
-
IOUT = 0.5A, (VIN - VOUT) = 3V, f = 120Hz, CADJ = COUT = 25µF
- 30ms pulse, TC = +25°C
Min
1.210 -
5.25 60 -
Max
1.275 0.25
0.35 1.8 1.4 120 5 10
0.04
Units
V %
% V V µA µA mA A dB %/W
SCD8653 Rev D 4/10/14
2
Aeroflex Plainview
ELECTRICAL PERFORMANCE CHARACTERISTICS (continued)
UNLESS OTHERWISE SPECIFIED: -55°CTC+125°C
Parameter
Symbol
Conditions (P PMAX)
Min
RH1185 Negative LDO section only 9/
Reference Voltage (At pin 6) 2/
VREF 1mA < IOUT < 3A, VIN - VOUT = 1.2V to 28V, VOUT = -5V -2.29
Dropout Voltage 2/, 6/
IOUT = 0.5A, VOUT = -5V VDROP
IOUT = 3A, VOUT = -5V
-
Line Regulation 2/, 10/
VOUT VIN
1.0V < VIN - VOUT < 20V, VOUT = -5V
-
Load Regulation 2/, .