Original Creation Date: 09/21/00
Last Update Date: 07/14/04
Last Major Revision Date: 07/07/04
MRLM137-X-RH REV 2A0 MICROCIRCUIT DATA SHEET
3-TERMINAL VOLTAGE REGULATOR, -37 VOLTS < VO < -1.25
VOLTS AT 0.5A GUARANTEED TO 30k rd(Si) TESTED TO
MIL-STD-883, METHOD 1019
General Description
The LM137H is an adjustable 3-terminal negative voltage regulator capable of supplying in
excess of -0.5A over an output voltage range of -1.2V to -37V. This regulator is
exceptionally easy to apply, requiring only 2 external resistors to set the output voltage
and 1 output capacitor for frequency compensation. The circuit design has been optimized
for excellent regulation and low thermal transients. Futher, the LM137H features internal
current limiting, thermal shutdown and safe-area compensation, making it virtually
blowout-proof against overloads.
The LM137H serve a wide variety of applications including local on-card regulation,
programmable-output voltage regulation or precision current regulation. The LM137H is an
ideal complement to the LM117H adjustable positive regulator.
NS Part Numbers
LM137HPQML
LM137HPQMLV
LM137WG-QMLV
LM137WGPQML
LM137WGPQMLV
Industry Part Number
LM137
Prime Die
LM137
Controlling Document
SEE FEATURES SECTION
Processing
MIL-STD-883, Method 5004
Quality Conformance Inspection
MIL-STD-883, Method 5005
Subgrp Description Temp ( C)
o
1 Static tests at +25
2 Static tests at +125
3 Static tests at -55
4 Dynamic tests at +25
5 Dynamic tests at +125
6 Dynamic tests at -55
7 Functional tests at +25
8A Functional tests at +125
8B Functional tests at -55
9 Switching tests at +25
10 Switching tests at +125
11 Switching tests at -55
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MICROCIRCUIT DATA SHEET
MRLM137-X-RH REV 2A0
Features
- Output voltage adjustable from -1.2V to -37V
- 0.5A output current guaranteed, -55 C to +150 C
- Line regulation typically 0.01%/V
- Load regulation typically 0.3%
- Excellent thermal regulation, 0.002%/W
- 50 ppm/ C temperature coefficient
- Temperature-independent current limit
- Internal thermal overload protection
- Stantard 3-lead transistor package
- Output short circuit protected
- CONTROLLING DOCUMENTS:
LM137HPQML 5962P9951701QXA
LM137HPQMLV 5962P9951701VXA
LM137WG-QMLV 5962-9951701VZA
LM137WGPQML 5962P9951701QZA
LM137WGPQMLV 5962P9951701VZA
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MICROCIRCUIT DATA SHEET
MRLM137-X-RH REV 2A0
(Absolute Maximum Ratings)
(Note 1)
Power Dissipation Internally Limited
Input-Output Voltage Differential 40V
Operatuing Junction Temperature -55 C < Ta < +150 C
Maximum Junction Temperature
(Note 2) 150 C
Maximum Power Dissipation 2.5 Watts(@ 25 C)
Minimum Input Voltage -41.25V
Storage Temperature -65 C < Ta < +150 C
Lead Temperature 300 C(Soldering, 10 seconds)
Thermal Resistance
ThetaJA
Metal Can 140 C/W(Still Air @ 0.5W) 64 C/W(500LF/Min Air Flow @ 0.5W)
CERAMIC SOIC 108 C/W(Still Air @ 0.5W) 65 C/W(500LF/Min Air Flow @ 0.5W)
ThetaJC 15 C/WMetal Can (@ 1.0W) 2.7 C/WCERAMIC SOIC (@ 1.0W)
(Note 3, 4)
Package Weight
(Typical) 955mgMetal Can 370mgCERAMIC SOIC
ESD Rating
(Note 3) 4000V
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.
Operating Rating indicate conditions for which the device is functional, but do not
guarantee specific performance limits. For guaranteed specifications and test
conditions, see the Electrical Characteristics. The guaranteed specifications apply
only for the test conditions listed. Some performance characteristics may degrade
when the device is not operated under the listed test conditions.
Note 2: The maximum power dissipation must be derated at elevated temperatures and is
dictated by Tjmax (maximum junction temperature), ThetaJA (package junction to
ambient thermal resistance), and TA (ambient temperature). The maximum allowable
power dissipation at any temperature is Pdmax = (Tjmax - TA) /ThetaJA or the number
given in the Absolute Maximum Ratings, whichever is lower.
Note 3: For the CERAMIC SOIC device to function properly, the "Output" and "Output/Sense"
pins must be connected on the users printed circuit board.
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MRLM137-X-RH REV 2A0 MICROCIRCUIT DATA SHEET
(Continued)
Note 4: The package material for these devices allows much improved heat transfer over our
standard ceramic packages. In order to take full advantage of this improved heat
transfer, heat sinking must be provided between the package base (directly beneath
the die), and either metal traces on, or thermal vias through, the printed circuit
board. Without this additional heat sinking, device power dissipation must be
calculated using junction-to-ambient, rather than junction -to-case, thermal
resistance. It must not be assumed that the device leads will provide substantial
heat transfer out the package, since the thermal resistance of the leadframe material
is very poor, relative to the material of the package base. The stated
junction-to-case thermal resistance is for the package material only, and does not
account for the additional thermal resistance between the package base and the
printed circuit board. The user must determine the value of the additional thermal
resistance and must combine this with the stated value for the package, to calculate
the total allowed power dissipation for the device.
Note 5: Human body model, 1.5K Ohms in series with 100pF.
Recommended Operating Conditions
Ta -55 C < Ta < +125 C
Input Voltage Range -41.25V to -4.25V
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MRLM137-X-RH REV 2A0 MICROCIRCUIT DATA SHEET
Electrical Characteristics
DC PARAMETERS: (SEE NOTE 3)
SYMBOL PARAMETER CONDITIONS NOTES PIN-
NAME MIN MAX UNIT SUB-
GROUPS
Vout Output Voltage Vin = -4.25V, Il = 5mA 3 -1.275 -1.225 V 1
3 -1.3 -1.2 V 2, 3
Vin = -4.25V, Il = 500mA 3 -1.275 -1.225 V 1
3 -1.3 -1.2 V 2, 3
Vin = -41.25V, Il = 5mA 3 -1.275 -1.225 V 1
3 -1.3 -1.2 V 2, 3
Vin = -41.25V, Il = 50mA 3 -1.275 -1.225 V 1
3 -1.3 -1.2 V 2, 3
Vrline Line Regulation Vin = -41.25V to -4.25V, Il = 5mA 3 -9 9 mV 1
3 -23 23 mV 2, 3
Vrload Load Regulation Vin = -6.25V, Il = 5mA to 500mA 3 -12 12 mV 1
3 -24 24 mV 2, 3
Vin = -41.25V, Il = 5mA to 50mA 3 -6 6 mV 1
3 -12 12 mV 2, 3
Vin = -6.25V, Il = 5mA to 200mA 3 -6 6 mV 1
3 -12 12 mV 2, 3
Vrth Thermal
Regulation Vin = -14.6V, Il = 500mA 3 -5 5 mV 1
Iadj Adjust Pin
Current Vin = -4.25V, Il = 5mA 3 25 100 uA 1, 2,
3
Vin = -41.25V, Il = 5mA 3 25 100 uA 1, 2,
3
Delta
Iadj(line) Adjust Pin
Current Change
vs. Line Voltage
Vin = -41.25V to -4.25V, Il = 5mA 3 -5 5 uA 1, 2,
3
Delta
Iadj(load) Adjust Pin
Current Change
vs. Load Current
Vin = -6.25V, Il = 5mA to 500mA 3 -5 5 uA 1, 2,
3
Ios Output Short
Circuit Current Vin = -4.25V 3 0.5 1.8 A 1, 2,
3
Vin = -40V 3 0.05 0.5 A 1, 2,
3
Vout
(Recovery) Output Voltage
Recovery After
Output Short
Circuit Current
Vin = -4.25V 3 -1.275 -1.225 V 1
3 -1.3 -1.2 V 2, 3
Vin = -40V 3 -1.275 -1.225 V 1
3 -1.3 -1.2 V 2, 3
5
MRLM137-X-RH REV 2A0 MICROCIRCUIT DATA SHEET
Electrical Characteristics
DC PARAMETERS: (SEE NOTE 3) (Continued)
SYMBOL PARAMETER CONDITIONS NOTES PIN-
NAME MIN MAX UNIT SUB-
GROUPS
Iq Minimum Load
Current Vin = -4.25V 3 0.2 3 mA 1, 2,
3
Vin = -14.25V 3 0.2 3 mA 1, 2,
3
Vin = -41.25V 3 1 5 mA 1, 2,
3
Vstart Voltage Start-up Vin = -4.25V, Il = 500mA 3 -1.275 -1.225 V 1
3 -1.3 -1.2 V 2, 3
Vout Output Voltage Vin = -6.25V, Il = 5mA 1, 3 -1.3 -1.2 V 2
AC PARAMETERS: (SEE NOTE 3)
Delta
Vin/Delta
Vout
Ripple Rejection Vin = -6.25V, Il = 125mA,
ei = 1Vrms at 2400Hz 348 dB9
Vno Output Noise
Voltage Vin = -6.25V, Il = 50mA 3 120 uVrms 9
Delta
Vout/Delta
Vin
Line Transient
Response Vin = -6.25V, Vpulse = -1V, Il = 50mA 3 80 mV/V 9
Delta
Vout/Delta
Il
Load Transient
Response Vin = -6.25V, Il = 50mA,
Delta Il = 200mA 2, 3 60 mV 9
DC PARAMETERS: DRIFT VALUES (See NOTE 3)
(The following conditions apply to all the following parameters, unless otherwise specified.)
DC: "Delta calculations performed on JAN S and QMLV devices at group B, subgroup 5 only".
Vout Output Voltage Vin = -4.25V, Il = 5mA 3 -0.01 0.01 V 1
Vin = -4.25V, Il = 500mA 3 -0.01 0.01 V 1
Vin = -41.25V, Il = 5mA 3 -0.01 0.01 V 1
Vin = -41.25V, Il = 50mA 3 -0.01 0.01 V 1
Vrline Line Regulation Vin = 41.25V to -4.25V, Il = 5mA 3 -4 4 mV 1
Iadj Adjust Pin
Current Vin = -4.25V, Il = 5mA 3 -10 10 uA 1
Vin = -41.25V, Il = 5mA 3 -10 10 uA 1
DC PARAMETERS: POST RADIATION LIMITS +25 C (See NOTE 3)
Delta Iadj
(line) Adjust Pin
Current Change
vs. Line Voltage
Vin = -41.25V to -4.25V, Il = 5mA 3 -20 20 uA 1
Note 1: Tested at +125 C; correlated to 150 C.
Note 2: Limit of 0.3mV/mA is equivalent to 60mV.
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MRLM137-X-RH REV 2A0 MICROCIRCUIT DATA SHEET
(Continued)
Note 3: Pre and post irradiation limits are identical to those listed under AC and DC
electrical characteristics except as listed in the Post Radiation Limits Table. These
parts may be dose rate sensitive in a space environment and demonstrate enhanced low
dose rate effect. Radiation end point limits for the noted parameters are guaranteed
only for the conditions as specified in MIL-STD-883, Method 1019.5, Condition A.
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MICROCIRCUIT DATA SHEET
MRLM137-X-RH REV 2A0
Graphics and Diagrams
GRAPHICS# DESCRIPTION
05192HRC1 METAL CAN (H), TO-39, 3LD, .200 DIA P.C. (P/P DWG)
06367HRA1 CERAMIC SOIC (WG), 16 LEAD (B/I CKT)
H03ARD METAL CAN (H), TO-39, 3LD, .200 DIA P.C. (P/P DWG)
P000199A METAL CAN (H), TO-39, 3LD, .200 DIA P.C. (PINOUT)
P000463A CERAMIC SOIC (WG), 16 LEAD (PINOUT)
WG16ARC CERAMIC SOIC (WG), 16 LEAD (P/P DWG)
See attached graphics following this page.
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N
MIL/AEROSPACE OPERATIONS
2900 SEMICONDUCTOR DRIVE
SANTA CLARA, CA 95050
LM137H, LM137HVH
CONNECTION DIAGRAM
BOTTOM VIEW
P000199A
3 - LEAD TO-39
OUTPUT
ADJUSTMENT
INPUT
N
MIL/AEROSPACE OPERATIONS
2900 SEMICONDUCTOR DRIVE
SANTA CLARA, CA 95050
1 16
2 15
3 14
4 13
5 12
6 11
7 10
N/C
INPUT
N/C
N/C
OUTPUT
N/C
N/C
16 - LEAD CERAMIC SOIC
LM137WG
TOP VIEW
CONNECTION DIAGRAM
P000463A
8 9
N/C N/C
ADJ
N/C OUTPUT/SENSE
N/C
N/C
N/C
N/C
MICROCIRCUIT DATA SHEET
MRLM137-X-RH REV 2A0
Revision History
Rev ECN # Rel Date Originator Changes
0A0 M0003761 03/15/02 Rose Malone Initial MDS Release: MRLM137-X-RH, Rev. 0A0. Replaced
MRLM137-H-RH, Rev. 2A0
1A0 M0003966 07/14/04 Rose Malone Archive/Obsolete MDS: MRLM137-X-RH, Rev. 0A0. No
longer able to produce Rad Hard Product.
2A0 M0004398 07/14/04 Rose Malone De-Archive MDS: MRLM137-X-RH, Rev. 1A0. Releasing MDS
at Revision 2A0.
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