Standard Products
VRG8601/02
Dual Adjustable Positive/Negative Voltage Regulators
Radiation Tolerant
www.aeroflex.com/RadHard
Sepember 22, 2008
FEATURES
❑
❑
❑
❑
❑
❑
❑
❑
Manufactured using
Linear Technology Corporation
®
Space Qualified RH117 and RH137 die
❑
Negative
regulator features (RH137)
Radiation performance
- Total dose > 100 krad (Si)
– Output voltage adjustable: -2.5V to -25V
Two-Independent voltage regulators
– 3-Terminal
– Voltage reference: 1.25V ±4%
Thermal shutdown
– Load regulation: 0.5% typ
1.5A output current
– Line regulation: .02% typ
Adjustable Output Voltages
– Ripple rejection: >60dB
Positive
regulator features (RH117)
❑
Designed for aerospace and high reliability space
– Output voltage adjustable: +1.2V to 37V
applications
– 3-Terminal
❑
DESC SMD: 5962-05219 approved
– Voltage reference: 1.25V ±4%
– Load regulation: 0.3% max
– Line regulation: 0.02% max
– Ripple rejection: >66dB
Packaging
– Hermetic metal
– Thru-hole or Surface mount
NOTE: Aeroflex Plainview does not currently have a
– 6 Leads, .65" x .42" x .200"
DSCC certified Radiation Hardened Assurance Program
– Power package
– Weight - 65 gm max
DESCRIPTION
The Aeroflex Plainview VGR8601/02 consists of a positive (RH117) and a negative (RH137) voltage regulator each
capable of supplying in excess of 1.5Amps over the output voltage range as defined under recommended operating
conditions. Each regulator is exceptionally easy to set-up, requiring only 2 external resistors to set the output voltage.
The module design has been optimized for excellent regulation and low thermal transients. There is full electrical
isolation between positive and negative regulators and each regulator to the package.
Further, the VRG8601/ 02 features internal current limiting, thermal shutdown and safe-area compensation, making
them virtually blowout-proof against overloads. The VRG8601/02 serves a wide variety of applications including
local on-card regulation, programmable output voltage regulation or precision current regulation.
The VRG8601/02 has been specifically designed to meet exposure to radiation environments. The VRG8601 is
configured for a Thru-Hole 6 lead metal power package and the VRG8602 is configured for a Surface Mount 6 lead
metal power package. It is guaranteed operational from -55°C to +125°C. Available screened to MIL-STD-883, the
VRG8601/ 02 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/LT117 and RH/LT137, which is available
on-line at www.linear.com.
1
ADJ
2
V
OUT
RH117
Positive
Regulator
V
IN
3
SCD8601 Rev N
4
ADJ
V
OUT
RH137
Negative
Regulator
V
IN
5
6
FIGURE 1 – BLOCK DIAGRAM / SCHEMATIC
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Operating (Junction) Temperature Range
Lead Temperature (soldering, 10 sec)
Storage Temperature Range
Input-Output Voltage Differential
Thermal Resistance (junction to case
Θ
JC
) each, Pos. & Neg.
ESD Rating
RANGE
-55 to +150
300
-65 to +150
40 (Pos)
5
1.999
1/
30 (Neg)
UNITS
°C
°C
°C
V
°C/W
KV
1/ Meets ESD testing per MIL-STD-883, method 3015, Class 1C.
NOTICE: Stresses above those listed under "Absolute Maximums Rating" 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
Positive Voltage Regulator
Negative Voltage Regulator
Case Operating Temperature Range
1.2 to 37
-1.2 to -27
-55 to +125
V
DC
V
DC
°C
RANGE
UNITS
POSITIVE REGULATOR – ELECTRICAL PERFORMANCE CHARACTERISTICS 1/
PARAMETER
Reference Voltage
Line Regulation 2/
Load Regulation 2/
Thermal Regulation
Ripple Rejection Ratio
Adjustment Pin Current
Adjustment Pin Current
Change
Minimum Load Current 3/
Current Limit
I
ADJ
SYM
V
REF
CONDITIONS (P
≤
P
MAX
)
3V < (V
IN
- V
OUT
) < V
DIFF MAX
, 10mA < I
OUT
< I
MAX
3V < (V
IN
- V
OUT
) < V
DIFF MAX
, I
OUT
= 10mA
10mA < I
OUT
< I
MAX
, V
OUT
< 5V
10mA < I
OUT
< I
MAX
, V
OUT
> 5V
I
OUT
= 1.5A, (V
IN
- V
OUT
) = 13.3V, 20ms Pulse, 20W,
T
C
= +25°C
V
OUT
= 10V, f = 120Hz, C
ADJ
= 10µF
MIN
1.20
-
-
-
-
66
-
10mA < I
OUT
< I
MAX
3.0V < (V
IN
- V
OUT
) < 40V, I
OUT
= 10mA
(V
IN
- V
OUT
) = 40V
(V
IN
- V
OUT
) < 15V
I
MAX
(V
IN
- V
OUT
) = 40V, T
C
= +25°C
Long Term Stability 3/
Thermal Resistance, each
Regulator
(Junction to Case) 3/
SCD8601 Rev N 9/22/08
MAX
1.30
0.02
15
0.3
0.07
-
100
5
UNITS
V
%/V
mV
%
%/W
dB
µA
µA
Δ
V
OUT
Δ
V
IN
Δ
V
OUT
Δ
I
OUT
Δ
I
ADJ
I
MIN
-
-
-
1.5
0.30
-
5
5
-
A
-
1
%
mA
Δ
V
OUT
Δ
T
IME
Θ
JC
T
A
= +125°C
-
5
°C/W
2
Aeroflex Plainview
NEGATIVE REGULATOR – ELECTRICAL PERFORMANCE CHARACTERISTICS 1/
PARAMETER
Reference Voltage
Line Regulation 2/
Load Regulation 2/
Thermal Regulation
Ripple Rejection
Adjustment Pin Current
Adjustment Pin Current
Change
Minimum Load Current 3/
Current Limit
I
ADJ
SYM
V
REF
CONDITIONS
3V < (V
IN
- V
OUT
) < V
DIFF MAX
,10mA < I
OUT
< I
MAX
3V < (V
IN
- V
OUT
) < 30V,
10mA < I
OUT
< I
MAX
, V
OUT
< 5V
10mA < I
OUT
< I
MAX
, V
OUT
> 5V
I
OUT
= 1.5A, (V
IN
- V
OUT
) = 13.3V, 20ms Pulse, 20W,
T
C
= +25°C
V
OUT
= -10V, f = 120Hz, C
ADJ
= 10µF
MIN
-1.200
-
-
-
-
66
-
10mA < I
OUT
< I
MAX
3V < (V
IN
- V
OUT
) < 30V
I
MIN
I
MAX
(V
IN
- V
OUT
) = 30V
(V
IN
- V
OUT
) < 10V
(V
IN
- V
OUT
) < 15V
(V
IN
- V
OUT
) = 30V, T
C
= +25°C
Long Term Stability 3/
Thermal Resistance, each
Regulator
(Junction to Case) 3/
-
-
-
-
1.5
0.24
-
-
MAX
-1.300
0.02
25
0.5
0.02
-
100
5
5
5
3
-
-
1
5
UNITS
V
%/V
mV
%
%/W
dB
µA
µA
mA
A
%
°C/W
Δ
V
OUT
Δ
V
IN
Δ
V
OUT
Δ
I
OUT
Δ
I
ADJ
Δ
V
OUT
T
A
= +125°C
Δ
T
IME
Θ
JC
Notes:
1. Unless otherwise specified, these specifications apply for post radiation, (Vin - Vout) = 5V, Iout = 0.5A and -55°C < Tc < +125°C.
2. Regulation is measured at a constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to
heating effects are covered under the specification for thermal regulation. Measurements taken at the output lead must be adjusted for lead
resistance.
3. Not tested. Shall be guaranteed to the specified limits.
SCD8601 Rev N 9/22/08
3
Aeroflex Plainview
60
50
40
Maximum Power
Dissipation
(Watts)
30
20
Both Regulators
1 Regulator
10
0
0
20
40
60
80
100
120
140
Case Temperature (°C)
FIGURE 2 – MAXIMUM POWER vs CASE TEMPERATURE
The maximum Power dissipation is limited by the thermal shutdown function of each regulator chip in the VRG8601/02. The
graph above represents the achievable power before the chip shuts down. The first line in the graph represents the maximum
power dissipation of the VRG8601/02 with one regulator on (the other off) and the other line represents both regulators on
dissipating equal power. If both regulators are on and one regulator is dissipating more power that the other, the maximum power
dissipation of the VRG8601/02 will fall between the two lines. This graph is based on the maximum junction temperature of
150°C and a thermal resistance (
Θ
JC
) of 5°C/W.
V
IN
VRG8601/02
V
REF
ADJ
R1
V
OUT
V
REF
= 1.25V, I
ADJ
= 50µA
+Reg = V
OUT
= V
REF
(1+R2/R1) + (I
ADJ
x R2)
-Reg = V
OUT
= -V
REF
(1+R2/R1) + (-I
ADJ
x R2)
R2
Adjustable Regulator
FIGURE 3 – TYPICAL APPLICATIONS
SCD8601 Rev N 9/22/08
4
Aeroflex Plainview
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