MIL-PRF-38534 CERTIFIED
M.S.KENNEDY CORP.
RAD TOLERANT ULTRA LOW DROPOUT ADJUSTABLE POSITIVE LINEAR REGULATOR
5921RH
(315) 701-6751
4707 Dey Road Liverpool, N.Y. 13088
FEATURES:
Total Dose Tested to 300K RAD Ultra Low Dropout for Reduced Power Consumption External Shutdown Latching Overload Protection Adjustable Output Using Two External Resistors Output Current Limit Available in 3 Lead Form Options: Straight, Up and Down Available to DSCC SMD # 5962-05220
DESCRIPTION:
The MSK 5921RH is a rad tolerant adjustable linear regulator typically capable of delivering 5.0 amps of output current. The typical dropout is only 0.30 volts with a 3.0A load. An external shutdown function is ideal for power supply sequencing. This device also has latching overload protection that requires no external current sense resistor. The MSK 5921RH is radiation tolerant and specifically designed for space/satellite applications. The device is packaged in a hermetically sealed space efficient 5 pin SIP that is electrically isolated from the internal circuitry allowing for direct heat sinking.
EQUIVALENT SCHEMATIC
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TYPICAL APPLICATIONS TYPICAL APPLICATIONS
Satellite System Power Supplies Switching Power Supply Post Regulators Constant Voltage/Current Regulators Microprocessor Power Supplies
PIN-OUT INFORMATION
1 2 3 4 5 VIN GND VOUT SHUTDOWN ADJUST
1
Rev. C
1/06
ABSOLUTE MAXIMUM RATINGS
+VIN IOUT TC
8
Supply Voltage +10V Output Current 7 5A Case Operating Temperature Range MSK5921K/H/E RH -55°C to +125°C MSK5921RH -40°C to +85°C
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TST TLD PD TC
Storage Temperature Range -65°C to +150°C Lead Temperature Range 300°C (10 Seconds) Power Dissipation See SOA Curve Junction Temperature 150°C
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ELECTRICAL SPECIFICATIONS
Parameter Input Voltage Range 2 Test Conditions 1 11 10mA ≤ IOUT ≤ 1.0A IOUT=3.0A R1=187Ω VFB=1.265V 10mA ≤ IOUT ≤ 3.0A VIN=6.5V Not Including IOUT Line Regulation 9 IOUT=50mA VOUT+0.4V ≤ VIN ≤ IOUT+1.3V Load Regulation 9 10mA ≤ IOUT ≤ 3.0A Group A Subgroup 1 2,3 Feedback Voltage 1 2,3 Feedback Pin Current 2 Quiescent Current 1,2,3 1 2,3 1 2,3 1 2,3 Dropout Voltage 10 Delta FB=1% IOUT=2.5A 1 2,3 Minimum Output Current 2 2.8V ≤ VIN ≤ 6.5V R1=187Ω Output Voltage Range 2 Output Current Limit
7
MSK5921K/H/E Min. 2.9 2.9 1.225 1.225 0 1.5 3.0 3.0 1.0 1.0 65 65 30 10 Typ. 1.265 14 14 Max. 6.5 6.5 Min. 2.9 -
MSK5921 Typ. 1.265 14 0.01 0.06 0.22 8 4.0 1.3 70 18 2.2 Max. 6.5 1.328 5.0 20 -
Units V V V V µA mA mA
1.305 1.202 1.305 5.0 20 20 0 1.5 3.0 1.0 65 30 10 -
±0.01 ±0.50 ±0.50
±0.60 %VOUT %VOUT
±0.06 ±0.80 0.22 0.26 8 9 4.0 4.0 1.3 1.3 70 18 2.2 ±0.80 0.40 0.40 10 10 6.0 5.0 5.0 1.6 1.6 50 4.0
±1.0 %VOUT 0.45 10 6.0 5.0 1.6 50 4.0 %VOUT V V mA mA V A A V V dB dB degrees dB µVRMS °C/W
1 2,3 1 2,3
VIN=6.5V VIN=3.5V VOUT=2.5V
Shutdown Threshold
VOUT ≤ 0.2V (OFF) VOUT=Nominal (ON)
1 2,3 4 5,6 4,5,6 4,5,6
Ripple Rejection 2
f=120Hz IOUT =50mA
Phase Margin 2 Gain Margin 2 Equivalent Noise Voltage 2 Thermal Resistance 2 Referred to Feedback Pin Junction to Case @ 125°C Output Device
4,5,6 -
NOTES:
1 2 3 4 5 6 Unless otherwise specified, VIN=5.0V, R1=1.62K, VSHUTDOWN=0V and IOUT=10mA. See Figure 2. Guaranteed by design but not tested. Typical parameters are representative of actual device performance but are for reference only. Industrial grade and "E" suffix devices shall be tested to subgroups 1 and 4 unless otherwise requested. Military grade devices ("H" suffix) shall be 100% tested to subgroups 1,2,3 and 4. Subgroup 5 and 6 testing available upon request. Subgroup 1,4 TC=+25°C Subgroup 2,5 TC=+125°C Subgroup 3,6 TA=-55°C Output current limit is dependent upon the values of VIN and VOUT. See Figure 1 and typical performance curves. Continuous operation at or above absolute maximum ratings may adversely effect the device performance and/or life cycle. VIN shall be as specified or VIN Min, whichever is greater. Not applicable when VOUT