MIL-PRF-38534 AND 38535 CERTIFIED FACILITY
HIGH CURRENT,
LOW DROPOUT
VOLTAGE REGULATORS
5102
SERIES
FEATURES:
•
•
•
•
•
•
•
•
Extremely Compact 10 Pin Flatpack With Metal Base
Extremely Low Dropout Voltage: 350mV @ 1.5 Amps
Available in +1.5V, +1.7V, +1.8V, +1.9V, +2.5V, +3.3V, +5.0V and +12.0V
TTL Level Enable Pin: Zero Current Shutdown Mode
Reverse Battery and Load Dump Protection
Low Ground Current: 32mA Typical at Full Load
1% Guaranteed Accuracy
Output Current to 1.5 Amps
DESCRIPTION:
The MSK5102 series voltage regulators are available in +1.5V, +1.7V, +1.8V, +1.9V, +2.5V, +3.3V, +5.0V and +12.0V
configurations. All boast ultra low dropout specifications due to the utilization of a super PNP output pass transistor with
monolithic technology. Dropout voltages of 350mV at 1.5 amps are typical in this configuration, which drives efficiency up
and power dissipation down. Accuracy is guaranteed with a 1% output voltage tolerance. The series also offers a TTL/
CMOS compatible on/off enable function. The MSK5102 series is packaged in a space efficient 10 pin ceramic flatpack
with a built in metal base.
EQUIVALENT SCHEMATIC
PIN-OUT INFORMATION
TYPICAL APPLICATIONS
•
•
•
•
•
High Efficiency, High Current Linear Regulators
Constant Voltage/Current Regulators
System Power Supplies
Switching Power Supply Post Regulators
Battery Powered Equipment
1
2
3
4
5
6
7
8
9
10
NC
ENABLE
VIN A
VIN B
NC
VOUT A
VOUT B
VOUT C
NC
NC
BASE
The base of the package is electrically connected to ground.
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8548-36 Rev. F 9/17
ABSOLUTE MAXIMUM RATINGS
VINP
VIN
VEN
IOUT
9
VIN Pulse (100mS max,1% Duty)........-20V to +60V
Input Voltage.......................................................26V
Enable Voltage......................................-0.3V to 26V
Output Current..................................................3.5A
TST Storage Temperature Range..........-65°C to +150°C
TLD Lead Temperature
(10 Seconds Soldering)..................................300°C
TJ Operating Temperature
MSK5102 Series.............................-40°C to -85°C
MSK5102H Series.......................-55°C to +125°C
ESD Rating.................................................Class 1B
ELECTRICAL SPECIFICATIONS
Parameter
Test Conditions
Output Voltage Tolerance
Dropout Voltage 2
Load Regulation 8
Line Regulation
Output Current Limit 2
Ground Current 2
Output Noise 2
1
Thermal Resistance 2
Thermal Shutdown
MSK5102 SERIES
Min.
Typ.
Max.
Units
1
-
±0.5
±1.0
-
±0.5
±1.0
%
-
±1.0
±3.0
-
-
-
%
∆VOUT = -1%; IOUT = 100mA
1
-
80
200
-
80
225
mV
∆VOUT = -1%; IOUT = 1.5A
1
-
350
600
-
350
625
mV
VIN=VOUT+1V
1
-
±0.2
±1.0
-
±0.2
±1.2
%
10mA ≤ IOUT ≤ 1.25A
2, 3
-
±0.3
±2.0
-
±0.3
-
%
(VOUT +1V) ≤ VIN ≤ 26V
1
-
±0.05
±0.5
-
±0.05
±0.6
%
IOUT = 10mA
2, 3
-
±0.5
±1.0
-
±0.5
-
%
VOUT = 0V; VIN = VOUT +1V
-
-
2.1
3.5
-
2.1
3.5
A
VIN = VOUT +1V; IOUT = 0.75A
-
-
18
30
-
18
30
mA
VIN = VOUT +1V; IOUT = 1.5A
-
-
32
-
-
32
-
mA
CL=10µF; 10Hz ≤ f ≤ 100KHz
-
-
400
-
-
400
-
µV
HIGH/ON
1
2.4
-
-
2.4
-
-
V
LOW/OFF
1
-
-
0.8
-
-
0.8
V
HIGH/ON
1
-
100
600
-
100
600
µA
LOW/OFF
1
-
-
2
-
-
2
µA
VENABLE ≤ 0.8V
-
-
10
500
-
10
500
µA
Junction to Case @ 125°C
-
-
5.6
6
-
5.6
7
°C/W
TJ
-
-
135
-
-
135
-
°C
2
Shutdown Output Current 2
MSK5102H SERIES
Min.
Typ.
Max.
2, 3
IOUT = 10mA; VIN = VOUT +1V
Enable Input Voltage 2
Enable Input Current
Group A
Subgroup
3
NOTES:
1
Output decoupled to ground using 10µF minimum capacitor unless otherwise specified.
2
This parameter is guaranteed by design but need not be 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 subgroups 1 and 4 unless otherwise specified.
5
Military grade devices ('H' suffix) shall be 100% tested to subgroups 1,2,3 and 4.
6
Subgroup 1,4
Subgroup 2
Subgroup 3
7
Please consult factory if alternate output voltages are desired.
8
Due to current limit, maximum output current may not be available at all values of VIN-VOUT and temperatures. See typical performance curves for clarification.
9
Continuous operation at or above absolute maximum ratings may adversely effect the device performance and/or life cycle.
TC = +25°C
TJ = +125°C
TA = -55°C
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8548-36 Rev. F 9/17
APPLICATION NOTES
REGULATOR PROTECTION:
HEAT SINK SELECTION:
The MSK5102 series is fully protected against reversed input
polarity, overcurrent faults, overtemperature conditions (Pd) and
transient voltage spikes of up to 60V. If the regulator is used in dual
supply systems where the load is returned to a negative supply,
the output voltage must be diode clamped to ground.
To select a heat sink for the MSK5102, the following formula for
convective heat flow may be used.
Governing Equation:
Tj = Pd x (Rθjc + Rθcs + Rθsa) + Ta
OUTPUT CAPACITOR:
The output voltage ripple of the MSK5102 series voltage regulators
can be minimized by placing a filter capacitor from the output to
ground. The optimum value for this capacitor may vary from one
application to the next, but a minimum of 10µF is recommended
for optimum performance. Transient load response can also be
improved by placing a capacitor directly across the load.
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
Ta = Ambient Temperature
LOAD CONNECTIONS:
First, the power dissipation must be calculated as follows:
In voltage regulator applications where very large load currents
are present, the load connection is very important. The path connecting the output of the regulator to the load must be extremely
low impedance to avoid affecting the load regulation specifications.
Any impedance in this path will form a voltage divider with the load.
Power Dissipation = (VIN - VOUT) x Iout
Next, the user must select a maximum junction temperature. The
maximum allowable junction temperature is 125°C. The equation
may now be rearranged to solve for the required heat sink to ambient
thermal resistance (Rθsa).
ENABLE PIN:
EXAMPLE:
The MSK5102 series of voltage regulators are equipped with a TTL
compatible ENABLE pin. A TTL high level on this pin activates the
internal bias circuit and powers up the device. A TTL low level on this
pin places the controller in shutdown mode and the device draws
approximately 10µA of quiescent current. If the enable function is
not used, simply connect the enable pin to the input.
An MSK5102-3.3 is configured for VIN=+5V and VOUT=+3.3V. Iout
is a continuous 1A DC level. The ambient temperature is +25°C.
The maximum desired junction temperature is 125°C.
Rθjc = 6°C/W and Rθcs = 0.5°C/W typically.
Power Dissipation = (5V - 3.3V) x (1A)
DEVICE SOLDERING/CASE CONNECTION:
Solve for Rθsa:
The MSK5102 series are highly thermally conductive devices and
the thermal path from the package base to the internal junctions
is very short. Standard surface mount techniques should be used
when soldering the device into a circuit board. The external heat
sink/pad needs to be connected to ground because the base of
the MSK5102 is also electrically connected to ground. The user is
urged to keep this in mind when designing the printed circuit board
for the MSK5102. There should be no printed circuit traces making
contact with the base of the device except for ground. The ground
plane can be used to pull heat away from the device.
125°C - 25°C
1.7W
= 52.3°C/W
Rθsa =
-6°C/W - 0.5°C/W
In this example, a heat sink with a thermal resistance of no more
than 52°C/W must be used to maintain a junction temperature of
no more than 125°C.
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8548-36 Rev. F 9/17
TYPICAL PERFORMANCE CURVES
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8548-36 Rev. F 9/17
MECHANICAL SPECIFICATIONS
ESD TRIANGLE INDICATES PIN 1
WEIGHT=0.3 GRAMS TYPICAL
ALL DIMENSIONS ARE SPECIFIED IN INCHES
ORDERING INFORMATION
MSK5102-3.3 H
SCREENING
BLANK=INDUSTRIAL; H=MIL-PRF-38534 CLASS H
OUTPUT VOLTAGE
1.5=+1.5V; 1.7=+1.7V; 1.8=+1.8V; 1.9=+1.9V; 2.5=+2.5V
3.3=+3.3V; 5.0=+5.0V; 12=+12.0V
GENERAL PART NUMBER
The above example is a +3.3V, Military regulator.
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8548-36 Rev. F 9/17
REVISION HISTORY
REV
D
E
F
STATUS
Released
Released
Released
DATE
05/15
07/15
09/17
DESCRIPTION
Add MSK5102-1.8V to series.
Add ESD rating to absolute maximum ratings and update format.
Change Subgroup 2, 3 Output Voltage Tolerance to ±3.0%
ANAREN, MSK Products
www.anaren.com/msk
The information contained herein is believed to be accurate at the time of printing. Anaren, MSK products 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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8548-36 Rev. F 9/17