MIL-PRF-38534 & 38535 CERTIFIED FACILITY
M.S.KENNEDY CORP.
RAD HARD DUAL POS/NEG,
3 AMP, LOW DROPOUT
FIXED VOLTAGE REGULATORS
5930RH
SERIES
FEATURES:
Manufactured using
Space Qualified RH1085 and RH1185 Die
Radiation Hardened to 100 Krads(Si) (Method 1019.7 Condition A)
Dual Low Dropout Voltage
Internal Short Circuit Current Limit
Output Voltages Are Internally Set To ±1% Max
Electrically Isolated Case
Internal Thermal Overload Protection
Many Output Voltage Combinations
Alternate Package and Lead Form Configurations Available
Alternate Output Voltages Available
Equivalent Non Rad Device MSK5000 Series
Available to DSCC SMD 5962R11229
DESCRIPTION:
The MSK5930RH Series offers low dropout voltages on both the positive and negative regulators while offering radiation tolerance for space applications. This, combined with the low θJC, allows increased output current while providing
exceptional device efficiency. Because of the increased efficiency, a small hermetic 5 pin package can be used providing
maximum performance while occupying minimal board space. Output voltages are internally trimmed to ±1% maximum
resulting in consistent and accurate operation. Additionally, both regulators offer internal short circuit current and thermal
limiting, which allows circuit protection and eliminates the need for external components and excessive derating.
EQUIVALENT SCHEMATIC
TYPICAL APPLICATIONS
PIN-OUT INFORMATION
1
2
3
4
5
High Efficiency Linear Regulators
Constant Voltage/Current Regulators
System Power Supplies
Switching Power Supply Post Regulators
+VIN
+VOUT
GND
-VIN
-VOUT
CASE=ISOLATED
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8548-55 Rev. F 10/14
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ABSOLUTE MAXIMUM RATINGS
±VIN
PD
IOUT
TJ
Input Voltage (WRT VOUT)
Power Dissipation
Output Current
Junction Temperature
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±30V
Internally Limited
±3A
+150°C
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TST
TLD
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Storage Temperature Range 13
Lead Temperature Range
(10 Seconds)
Case Operating Temperature
MSK5930-5939RH
MSK5930K/HRH5939K/HRH
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TC
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ELECTRICAL SPECIFICATIONS
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Group A
Parameter
Test Conditions 3 11
Subgroup
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MSK5930K/HRH
SERIES
Max.
Min. Typ.
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-65°C to +150°C
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300°C
-40°C to +85°C
-55°C to +125°C
MSK5930RH SERIES
Min.
Typ. Max.
Units
POSITIVE OUTPUT REGULATORS
Output Voltage Tolerance
IOUT=0A; VIN=VOUT+3V
Post Radiation
Dropout Voltage 2
0A≤IOUT≤3A; ΔVOUT=50mV
1
-
0.1
1.0
-
0.1
2.0
%
2,3
-
0.1
2.0
-
-
-
%
1
-
1.5
3.0
-
1.5
3.0
%
1
-
1.3
1.5
-
1.3
1.6
V
100mA≤IOUT≤3A
1
-
0.2
1
-
0.2
2
%
VIN=VOUT+3V
2,3
-
0.3
2
-
-
-
%
IOUT=0A
1
-
0.1
0.5
-
0.1
0.6
%
(VOUT+3V)≤VIN≤(VOUT+15V)
2,3
-
0.2
0.75
-
-
-
%
Load Regulation
Line Regulation
Quiescent Current
Short Circuit Current 2 9
VIN=VOUT+3V; IOUT=0A
1,2,3
-
10
15
-
10
15
mA
VIN=VOUT+5V
-
3.2
4
-
3.0
4
-
A
Ripple Rejection 2
IOUT=3A; COUT=25μF; f=120Hz
-
60
75
-
60
75
-
dB
Thermal Resistance 2
JUNCTION TO CASE @ 125°C
-
-
2.9
3.2
-
2.9
3.2
°C/W
1
-
0.1
1.0
-
0.1
2.0
%
2,3
-
0.1
2.5
-
-
-
%
1
-
1.0
2.0
-
1.0
2.0
%
0A≤IOUT≤3A; ΔVOUT=50mV
1
-
0.8
1.2
-
0.8
1.3
V
VIN=VOUT+3V
1
-
0.2
1
-
0.2
2
%
100mA≤IOUT≤3A
2,3
-
0.3
2
-
-
-
%
IOUT=0A
1
-
0.1
0.5
-
0.1
0.6
%
(VOUT+3V)≤VIN≤(VOUT+15V)
2,3
-
0.2
0.75
-
-
-
%
VIN=VOUT+3V; IOUT=0A
1,2,3
-
4.5
10
-
4.5
10
mA
VIN=VOUT+5V
-
3.0
3.5
-
3.0
3.5
-
A
-
60
75
-
60
75
-
dB
3.6
°C/W
NEGATIVE OUTPUT REGULATORS 8
Output Voltage Tolerance
IOUT=0A; VIN=VOUT+3V
Post Radiation
Dropout Voltage 2
Load Regulation
Line Regulation
Quiescent Current
Short Circuit Current 2
Ripple Rejection 2
Thermal Resistance 2
IOUT=3A; COUT=25μF; f=120Hz
JUNCTION TO CASE @ 125°C
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NOTES:
1 Outputs are decoupled to ground using 33μF minimum low ESR capacitors unless otherwise specified.
2 Guaranteed by design but not tested. Typical parameters are representative of actual device
performance but are for reference only.
3 All output parameters are tested using a low duty cycle pulse to maintain TJ = TC.
4 Industrial grade devices shall be tested to subgroup 1 unless otherwise specified.
5 Military grade devices ("H" and "K" suffix) shall be 100% tested to subgroups 1,2 and 3.
6 Subgroup 1 TA=TC=+25°C
Subgroup 2 TA=TC=+125°C
Subgroup 3 TA=TC=-55°C
7 Please consult the factory if alternate output voltages are required.
8 Input voltage (VIN= VOUT + a specified voltage) is implied to be more negative than VOUT.
9 For compliance with Mil-STD 833 revision C current density specifications, the MSK5930RH series is
derated to 2 Amps for the positive regulator.
10 Continuous operation at or above absolute maximum ratings may adversely effect the device
performance and/or life cycle.
11 Pre and post irradiation limits, at 25°C, up to 100Krad TID, are identical unless otherwise specified.
12 Reference DSCC SMD 5962R11229 for electrical specification for devices purchased as such.
13 Internal solder reflow temperature is 180°C, do not exceed.
2
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3.3
PART
NUMBER
3.6
7
3.3
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OUTPUT VOLTAGES
POSITIVE
NEGATIVE
MSK5930RH
+3.3V
-5.2V
MSK5931RH
+5.0V
-5.0V
MSK5932RH
+5.0V
-5.2V
MSK5933RH
+12.0V
-5.0V
MSK5934RH
+12.0V
-12.0V
MSK5935RH
+15.0V
-15.0V
MSK5936RH
+15.0V
-5.0V
MSK5937RH
+5.0V
-12.0V
MSK5938RH
+5.0V
-15.0V
MSK5939RH
+10.0V
-10.0V
8548-55 Rev. F 10/14
APPLICATION NOTES
BYPASS CAPACITORS
OVERLOAD SHUTDOWN
For most applications a 33uF minimum, low ESR (0.5-2 ohm)
tantalum capacitor should be attached as close to the regulator's
output as possible. This will effectively lower the regulator's
output impedance, increase transient response and eliminate any
oscillations that are normally associated with low dropout regulators. Additional bypass capacitors can be used at the remote
load locations to further improve regulation. These can be either
of the tantalum or the electrolytic variety. Unless the regulator
is located very close to the power supply filter capacitor(s), a
4.7uF minimum low ESR (0.5-2 ohm) tantalum capacitor should
also be added to the regulator's input. An electrolytic may also
be substituted if desired. When substituting electrolytic in place
of tantalum capacitors, a good rule of thumb to follow is to
increase the size of the electrolytic by a factor of 10 over the
tantalum value.
The regulators feature both power and thermal overload protection. When the maximum power dissipation is not exceeded,
the regulators will current limit slightly above their 3 amp rating.
As the VIN-VOUT voltage increases, however, shutdown occurs in relation to the maximum power dissipation curve. If the
device heats enough to exceed its rated die junction temperature
due to excessive ambient temperature, improper heat sinking etc.,
the regulators also shutdown until an appropriate junction temperature is maintained. It should also be noted that in the case of
an extreme overload, such as a sustained direct short, the device
may not be able to recover. In these instances, the device must
be shut off and power reapplied to eliminate the shutdown condition.
HEAT SINKING
To determine if a heat sink is required for your application
and if so, what type, refer to the thermal model and governing equation below.
LOAD REGULATION
For best results the ground pin should be connected directly
to the load as shown below, this effectively reduces the ground
loop effect and eliminates excessive voltage drop in the sense
leg. It is also important to keep the output connection between
the regulator and the load as short as possible since this directly
affects the load regulation. For example, if 20 gauge wire were
used which has a resistance of about .008 ohms per foot, this
would result in a drop of 8mV/ft at 1Amp of load current. It is
also important to follow the capacitor selection guidelines to
achieve best performance. Refer to Figure 1 for connection diagram.
Governing Equation: Tj = Pd x (Rθjc + Rθcs + Rθsa) + Ta
WHERE
Tj = Junction Temperature
Pd = Total Power Dissipation
Rθjc = Junction to Case Thermal Resistance
Rθcs = Case to Heat Sink Thermal Resistance
Rθsa = Heat Sink to Ambient Thermal Resistance
Tc = Case Temperature
Ta = Ambient Temperature
Ts = Heat Sink Temperature
Avoiding Ground Loops
EXAMPLE:
This example demonstrates an analysis where each regulator
is at one-half of its maximum rated power dissipation, which
occurs when the output currents are at 1.5 amps each.
Conditions for MSK5932RH:
VIN = ±7.0V; Iout = ±1.5A
1.) Assume 45° heat spreading model.
2.) Find negative regulator power dissipation:
FIGURE 1
Pd = (VIN - VOUT)(Iout)
Pd = (7-5)(1.5)
= 3.0W
TOTAL DOSE RADIATION TEST
PERFORMANCE
3.) For conservative design, set Tj = +125°C Max.
4.) For this example, worst case Ta = +90°C.
5.) Rθjc = 3.6°C/W from the Electrical Specification Table.
6.) Rθcs= 0.15°C/W for most thermal greases.
7.) Rearrange governing equation to solve for Rθsa:
Rθsa= ((Tj - Ta)/Pd) - (Rθjc) - (Rθcs)
= (125°C - 90°C)/3.0W - 3.6°C/W - 0.15°C/W
= 7.9°C/W
The same exercise must be performed for the positive regulator.
In this case the result is 7.9°C/W. Therefore, a heat sink with a
thermal resistance of no more than 7.9°C/W must be used in
this application to maintain both regulator circuit junction temperatures under 125°C.
Radiation performance curves for TID testing have been generated for all radiation testing performed by MS Kennedy. These
curves show performance trends throughout the TID test process and can be located in the MSK5930RH radiation test report. The complete radiation test report will be available in the
RAD HARD PRODUCTS section on the MSK website.
http://www.mskennedy.com/store.asp?pid=9951&catid=19680
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8548-55 Rev. F 10/14
TYPICAL PERFORMANCE CURVES
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8548-55 Rev. F 10/14
MECHANICAL SPECIFICATIONS
ESD TRIANGLE INDICATES PIN 1
WEIGHT=7.9 GRAMS TYPICAL
ALL DIMENSIONS ARE SPECIFIED IN INCHES
ORDERING INFORMATION
MSK5930 H RH U
LEAD CONFIGURATIONS
S= STRAIGHT; U= BENT UP; D= BENT DOWN
RADIATION HARDENED
SCREENING
BLANK= INDUSTRIAL; H=MIL-PRF-38534 CLASS H;
K=MIL-PRF-38534 CLASS K
OUTPUT VOLTAGE (5930-5939)
SEE PAGE 2 FOR PART NUMBERS & VOLTAGES
GENERAL PART NUMBER
The above example is a +3.3V, -5.2V military regulator with leads bent up.
NOTE: See DSCC SMD 5962R11229 for DSCC part number options.
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8548-55 Rev. F 10/14
REVISION HISTORY
M.S. Kennedy Corp.
Phone (315) 701-6751
FAX (315) 701-6752
www.mskennedy.com
The information contained herein is believed to be accurate at the time of printing. MSK reserves the right to make
changes to its products or specifications without notice, however, and assumes no liability for the use of its products.
Please visit our website for the most recent revision of this datasheet.
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8548-55 Rev. F 10/14