MSK5116-1.9ZU [MSK]
HIGH CURRENT, LOW DROPOUT VOLTAGE REGULATORS; 大电流,低压差稳压器型号: | MSK5116-1.9ZU |
厂家: | M.S. KENNEDY CORPORATION |
描述: | HIGH CURRENT, LOW DROPOUT VOLTAGE REGULATORS |
文件: | 总5页 (文件大小:274K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
MIL-PRF-38534 CERTIFIED
HIGH CURRENT,
LOW DROPOUT
VOLTAGE REGULATORS
5116
SERIES
M.S.KENNEDY CORP.
4707 Dey Road Liverpool, N.Y. 13088
(315) 701-6751
FEATURES:
Electrically Isolated Top Tab or Z Tab SIP
Extremely Low Dropout Voltage: 350mV @ 1.5 Amps
Available in +1.5V,+1.7V,+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% Maximum Guaranteed Accuracy
Output Current to 1.5 Amps
Contact MSK for MIL-PRF-38534 Qualification Status
DESCRIPTION:
The MSK 5116 series voltage regulators are available in +1.5V,+1.7V,+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% maximum output voltage tolerance.
The series also offers a TTL/CMOS compatible on/off enable function. The MSK 5116 series is packaged in a space
efficient 5 pin power SIP available in two styles with three lead bend options.
EQUIVALENT SCHEMATIC
TYPICAL APPLICATIONS
PIN-OUT INFORMATION
High Efficiency, High Current Linear Regulators
Constant Voltage/Current Regulators
System Power Supplies
Switching Power Supply Post Regulators
Battery Powered Equipment
1 Enable
2 Vin
3 Ground
4 Vout
5 NC
1
Rev. A 1/06
9
ABSOLUTE MAXIMUM RATINGS
VINP
VIN
TST
TLD
Storage Temperature Range -65°C to +150°C
Input Voltage (100mS 1%D.C.)-20V to +60V
Lead Temperature
Input Voltage
Enable Voltage
Output Current
26V
-0.3V to 26V
3.5A
300°C
VEN
IOUT
(10 Seconds Soldering)
Operating Temperature
MSK 5116 Series
TJ
-40°C to +85°C
-55°C to +125°C
MSK 5116H/E Series
ELECTRICAL SPECIFICATIONS
Group A MSK 5116H/E SERIES
MSK 5116 SERIES
1
3
Test Conditions
Parameter
Subgroup
Typ.
.ꢀꢁ
-
Max.
1ꢀ.
-
Min.
Typ.
.ꢀꢁ
1ꢀ.
8.
Max.
1ꢀ.
2ꢀ.
2..
6..
1ꢀ.
2ꢀ.
.ꢀꢁ
1ꢀ.
3ꢀꢁ
3.
-
Min.
Units
%
1
2,3
1
-
-
IOUT=1.mA; VIN=VOUT+1V
Output Voltage Tolerance
-
%
-
∆VOUT=-1%; IOUT=1..m A
∆VOUT=-1%; IOUT=1ꢀꢁA
VIN=VOUT+ꢁV
8.
22ꢁ
62ꢁ
1ꢀ2
-
-
mV
mV
%
-
Dropout Voltage
Load Regulation
Line Regulation
2
1
3ꢁ.
.ꢀ2
.ꢀ3
.ꢀ.ꢁ
.ꢀꢁ
2ꢀ1
18
-
-
3ꢁ.
.ꢀ2
.ꢀ3
.ꢀ.ꢁ
.ꢀꢁ
2ꢀ1
18
1
-
-
8
1.mA ≤ IOUT ≤ 1ꢀ2ꢁA
2,3
1
-
%
-
(VOUT +1V) ≤ VIN ≤ 26V
IOUT=1.mA
.ꢀ6
-
-
%
-
2,3
-
-
%
-
2
Output Current Limit
VOUT=.V; VIN=VOUT+1V
VIN=VOUT+1V; IOUT=.ꢀ7ꢁA
VIN=VOUT+1V; IOUT=1ꢀꢁA
CL=1.µF; 1.Hz ≤ f ≤ 1..KHz
3ꢀꢁ
3.
-
-
A
-
-
-
mA
mA
µV
V
-
2
Ground Current
-
32
-
-
32
2
-
4..
1ꢀ2
1ꢀ2
2.
Output Noise
-
-
-
4..
1ꢀ2
1ꢀ2
1..
-
-
1
2ꢀ4
-
2ꢀ4
-
HIGH/ON
2
Enable Input Voltage
Enable Input Current
1
-
-
-
-
-
-
.ꢀ8
6..
2
V
-
-
-
-
-
-
.ꢀ8
6..
2
LOW/OFF
HIGH/ON
LOW/OFF
1
µA
µA
µA
°C/W
°C
2
1
-
2
Shutdown Output Current
VENABLE ≤ .ꢀ8V
-
1.
ꢁ..
3ꢀ7
-
1.
ꢁ..
3ꢀ6
-
Thermal Resistance
Thermal Shutdown
Junction to Case @ 12ꢁ°C
-
3ꢀ1
13.
2
3ꢀ1
13.
2
TJ
-
NOTES:
1
2
Output decoupled to ground using 33µF minimum capacitance unless otherwise specified.
This parameter is guaranteed by design but need not be 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 ('B' suffix) shall be 100% tested to subgroups 1,2,3.
3
4
5
6
Subgroup 1
Subgroup 2
Subgroup 3
TC=+25°C
TJ=+125°C
TA=-55°C
7
8
Please consult the factory if alternate output voltages are required.
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 cyle.
2
Rev. A 1/06
APPLICATION NOTES
HEAT SINK SELECTION:
REGULATOR PROTECTION:
To select a heat sink for the MSK 5116, the following formula
for convective heat flow may be used.
The MSK 5116 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.
Governing Equation:
Tj = Pd x (Rθjc + Rθcs + Rθsa) + Ta
WHERE:
OUTPUT CAPACITOR:
Tj = Junction Temperature
Pd = Total Power Dissipation
The output voltage ripple of the MSK 5116 series voltage regu-
lators 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. This capacitor need
not be an expensive low ESR type: aluminum electrolytics are
adequate. In fact, extremely low ESR capacitors may contrib-
ute to instability. Tantalum capacitors are recommended for
systems where fast load transient response is important. Tran-
sient load response can also be improved by placing a capaci-
tor directly across the load.
Rθjc = Junction to Case Thermal Resistance
Rθcs = Case to Heat Sink Thermal Resistance
Rθsa = Heat Sink to Ambient Thermal Resistance
Ta = Ambient Temperature
First, the power dissipation must be calculated as follows:
Power Dissipation = (Vin - Vout) x Iout
Next, the user must select a maximum junction temperature.
The absolute 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).
LOAD CONNECTIONS
In voltage regulator applications where very large load cur-
rents 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.
EXAMPLE:
An MSK 5116-3.3 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 tem-
perature is 125°C.
Rθjc = 3.6°C/W and Rθcs = 0.15°C/W for most thermal greases
ENABLE PIN
Power Dissipation = (5V - 3.3V) x (1A)
= 1.7 Watts
The MSK 5116 series of voltage regulators are equipped with a
TTL compatible ENABLE pin. A TTL high level on this pin acti-
vates 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.
Solve for Rθsa:
Rθsa = 125°C - 25°C - 3.6°C/W - 0.15°C/W
1.7W
= 55.07°C/W
In this example, a heat sink with a thermal resistance of no
more than 55°C/W must be used to maintain a junction tem-
perature of no more than 125°C.
DEVICE/CASE CONNECTION:
The MSK 5116 series are highly thermally conductive devices
and the thermal path from the package heat sink to the internal
junctions is very short. Since the case is electrically isolated
from the internal circuitry, the package can be directly con-
nected to a heat sink.
Rev. A 1/06
3
TYPICAL PERFORMANCE CURVES
Rev. A 1/06
4
MECHANICAL SPECIFICATIONS
NOTE: ALL DIMENSIONS ARE .ꢀ.1. INCHES UNLESS OTHERWISE LABELEDꢀ
ESD Triangle indicates Pin 1ꢀ
ORDERING INFORMATION
MSK5116-3.3 H T U
LEAD CONFIGURATIONS
S= STRAIGHT; U= BENT UP; D= BENT DOWN
PACKAGE STYLE
T= TOP TAB; Z= Z PACK
SCREENING
BLANK= INDUSTRIAL; E=EXTENDED RELIABILITY
H=MIL-PRF 38534 CLASS H
OUTPUT VOLTAGE
1.5=+1.5V; 1.7=+1.7V; 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 using the top tab package with leads bent up.
M.S. Kennedy Corp.
4707 Dey Road, Liverpool, New York 13088
Phone (315) 701-6751
FAX (315) 701-6752
www.mskennedy.com
The information contained herein is believed to be accurate at the time of printingꢀ MSK reserves the right to make
changes to its products or specifications without notice, however, and assumes no liability for the use of its productsꢀ
Please visit our website for the most recent revision of this datasheetꢀ
Contact MSK for MIL-PRF-38ꢁ34 qualification statusꢀ
5
Rev. A 1/06
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