MSK5932KRHD - M.S. Kennedy Corp.

4707 Dey Road Liverpool, N.Y. 13088

M.S.KENNEDY CORP.

(315) 701-6751

FEATURES:

Manufactured using Space Qualified RH1085 and RH1185 Die

Total Dose Tested to 300 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

Contact MSK for MIL-PRF-38534 Qualification and Appendix G (Radiation) Status

High Efficiency Linear Regulators

Constant Voltage/Current Regulators

System Power Supplies

Switching Power Supply Post Regulators

TYPICAL APPLICATIONS PIN-OUT INFORMATION

+Vin

+Vout

GND

-Vin

-Vout

5930RH

SERIES

RAD HARD DUAL POS/NEG,

3 AMP, LOW DROPOUT

FIXED VOLTAGE REGULATORS

DESCRIPTION:

The MSK 5930RH Series offers low dropout voltages on both the positive and negative regulators while offering radia-

tion 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

MIL-PRF-38534 CERTIFIED

1 Rev. C 12/08

POSITIVE OUTPUT REGULATORS

Dropout Voltage

Quiescent Current

Short Circuit Current

Ripple Rejection

Thermal Resistance

NEGATIVE OUTPUT REGULATORS

Dropout Voltage

Quiescent Current

Short Circuit Current

Ripple Rejection

Thermal Resistance

0A≤IOUT≤3A; ∆VOUT=50mV

100mA≤IOUT≤3A

VIN=VOUT+3V

IOUT=0A

(VOUT+3V)≤VIN≤(VOUT+15V)

VIN=VOUT+3V; IOUT=0A

VIN=VOUT+5V

IOUT=3A; COUT=25µF; f=120Hz

JUNCTION TO CASE @ 125°C

0A≤IOUT≤3A; ∆VOUT=50mV

VIN=VOUT+3V

100mA≤IOUT≤3A

IOUT=0A

(VOUT+3V)≤VIN≤(VOUT+15V)

VIN=VOUT+3V; IOUT=0A

VIN=VOUT+5V

IOUT=3A; COUT=25µF; f=120Hz

JUNCTION TO CASE @ 125°C

Max.

1.0

2.0

3.0

1.5

0.5

0.75

3.2

1.0

2.5

2.0

1.2

0.5

0.75

3.6

Storage Temperature Range

Lead Temperature Range

(10 Seconds)

Case Operating Temperature

MSK 5930-5939RH

MSK 5930K/H/E RH-

5939K/H/E RH

±30V

Internally Limited

±3A

+150°C

-65°C to +150°C

300°C

-40°C to +85°C

-55°C to +125°C

ABSOLUTE MAXIMUM RATINGS

TST

TLD

Input Voltage (WRT VOUT)

Power Dissipation

Output Current

Junction Temperature

○○○ ○○○○○

○○○○○○○○○○

±VIN

IOUT

○○○○○○

○○○○○○○○○○○○○○

○○○○○○○○○

○○○○○○○○

○○○○○○

Outputs are decoupled to ground using 33µF minimum low ESR capacitors unless otherwise specified.

Guaranteed by design but not tested. Typical parameters are representative of actual device

performance but are for reference only.

All output parameters are tested using a low duty cycle pulse to maintain TJ = TC.

Industrial grade and "E" suffix devices shall be tested to subgroup 1 unless otherwise specified.

Military grade devices ("H" and "K" suffix) shall be 100% tested to subgroups 1,2 and 3.

Subgroup 1 TA=TC=+25°C

Subgroup 2 TA=TC=+125°C

Subgroup 3 TA=TC=-55°C

Please consult the factory if alternate output voltages are required.

Input voltage (VIN= VOUT + a specified voltage) is implied to be more negative than VOUT.

For compliance with Mil-STD 833 revision C current density specifications, the MSK 5930RH series is

derated to 2 Amps for the positive regulator.

Continuous operation at or above absolute maximum ratings may adversely effect the device

performance and/or life cycle.

Pre and post irradiation limits, at 25°C, up to 100Krad TID, are identical unless otherwise specified.

Min.

3.0

Group A

Subgroup

2,3

1,2,3

2,3

1,2,3

Min.

3.2

3.0

Typ.

0.1

1.5

1.3

0.2

0.3

0.1

0.2

2.9

0.1

1.0

0.8

0.2

0.3

0.1

0.2

4.5

3.5

3.3

Typ.

0.1

1.5

1.3

0.2

0.1

2.9

0.1

1.0

0.8

0.2

0.1

4.5

3.5

3.3

Max.

2.0

3.0

1.6

0.6

3.2

2.0

1.3

0.6

3.6

Parameter

ELECTRICAL SPECIFICATIONS

Test Conditions Units

MSK 5930RH SERIESMSK 5930K/H/E RH

SERIES

°C/W

NOTES:

Rev. C 12/08

Post Radiation

Output Voltage Tolerance IOUT=0A; VIN=VOUT+3V

Load Regulation

Line Regulation

Post Radiation

Output Voltage Tolerance IOUT=0A; VIN=VOUT+3V

Load Regulation

Line Regulation

+3.3V

+5.0V

+12.0V

+15.0V

+5.0V

+10.0V

MSK5930RH

MSK5931RH

MSK5932RH

MSK5933RH

MSK5934RH

MSK5935RH

MSK5936RH

MSK5937RH

MSK5938RH

MSK5939RH

-5.2V

-5.0V

-5.2V

-5.0V

-12.0V

-15.0V

-5.0V

-12.0V

-15.0V

-10.0V

OUTPUT VOLTAGES

POSITIVE NEGATIVE

PART

NUMBER

APPLICATION NOTES

HEAT SINKING

To determine if a heat sink is required for your application

and if so, what type, refer to the thermal model and govern-

ing equation below.

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

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 MSK 5932RH:

Vin = ±7.0V; Iout = ±1.5A

1.) Assume 45° heat spreading model.

2.) Find negative regulator power dissipation:

Pd = (Vin - Vout)(Iout)

Pd = (7-5)(1.5)

=3.0W

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 tem-

peratures under 125°C.

OVERLOAD SHUTDOWN

The regulators feature both power and thermal overload pro-

tection. 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 tempera-

ture 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 con-

dition.

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 dia-

gram.

Avoiding Ground Loops

BYPASS CAPACITORS

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 regu-

lators. 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.

FIGURE 1

3 Rev. C 12/08

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 MSK 5930RH radia-

tion test report. The complete radiation test report will be

available in the RAD HARD PRODUCTS section on the MSK

website.

TOTAL DOSE RADIATION TEST

PERFORMANCE

http://www.mskennedy.com/store.asp?pid=9951&catid=19680

TYPICAL PERFORMANCE CURVES

4 Rev.B 12/08

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.

Contact MSK for MIL-PRF-38534 qualification status.

MECHANICAL SPECIFICATIONS

M.S. Kennedy Corp.

4707 Dey Road, Liverpool, New York 13088

Phone (315) 701-6751

FAX (315) 701-6752

www.mskennedy.com

ALL DIMENSIONS ARE ±0.010 INCHES UNLESS OTHERWISE LABELED

ORDERING INFORMATION

NOTE: ESD Triangle indicates Pin 1.

Rev. C 12/08

LEAD CONFIGURATIONS

S= STRAIGHT; U= BENT UP; D= BENT DOWN

RADIATION HARDENED

SCREENING

BLANK= INDUSTRIAL; E=EXTENDED RELIABILITY

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

MSK5930 H RH U

The above example is a +3.3V, -5.2V military regulator with leads bent up.

WEIGHT=7.9 GRAMS TYPICAL