TERMINAL ADJUSTABLE NEGATIVE REGULATOR LM137K adjustable 3-termin

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TERMINAL ADJUSTABLE NEGATIVE REGULATOR LM137K adjustable 3-termin

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MICROCIRCUIT DATA SHEET MNLM137-K
TERMINAL ADJUSTABLE NEGATIVE REGULATOR
LM137K adjustable 3-terminal negative voltage regulator capable supplying excess -1.5A over output voltage range -1.2V -37V. This regulator exceptionally easy apply, requiring only external resistors output voltage output capacitor frequency compensation. circuit design been optimized excellent regulation thermal transients. Futher, LM137K features internal current limiting, thermal shutdown safe-area compensation, making them virtually blowout-proof against overloads. LM137K serves wide variety applications including local on-card regulation, programmable-output voltage regulation procision current regulation. LM137K ideal complement LM117K adjustable positive regulator.
Industry Part Number
LM137
Part Numbers
LM137K/883
Prime
LM137
Processing
MIL-STD-883, Method 5004
Subgrp Description
Static tests Static tests Static tests Dynamic tests Dynamic tests Dynamic tests Functional tests Functional tests Functional tests Switching tests Switching tests Switching tests
Temp
+125 +125 +125 +125
Quality Conformance Inspection
MIL-STD-883, Method 5005
MNLM137-K
MICROCIRCUIT DATA SHEET
Features
Output voltage adjustable from -1.2V -37V 1.5A output current guaranteed, +150 Line regulation typically 0.01%/V Load regulation typically 0.3% Excellent thermal regulation, 0.002%/W ppm/ temperature coefficient Temperature-independent current limit Internal thermal overload protection Stantard 3-lead transistor package Output short circuit protected
MNLM137-K
MICROCIRCUIT DATA SHEET
(Absolute Maximum Ratings)
(Note Power Dissipation (Note Internally Limited Input-Output Voltage Differential Operating Junction Temperature +150 Maximum Junction Temperature (Note Storage Temperature Lead Temperature (Soldering, seconds) Thermal Resistance ThetaJA (Still Air) (500LF/Min Flow) ThetaJC Package Weight (Typical) Rating (Note
12750mg
Volts Note Absolute Maximum Ratings indicate limits beyond which damage device occur. Operating Ratings indicate conditions which device functional, guarantee specific performance limits. guaranteed specifications test conditions, Electrical Characteristics. guaranteed specifications apply only test conditions listed. Some performance characteristics degrade when device operated under listed test conditions. maximum power dissipation must derated elevated temperatures dictated Tjmax (maximum junction temperature), ThetaJA (package junction ambient thermal resistance), (ambient temperature). maximum allowable power dissipation temperature Pdmax (Tjmax /ThetaJA number given Absolute Maximum Ratings, whichever lower. Human body model, 100pF discharged through 1.5K Ohms
Note
Note
Recommended Operating Conditions
+125 Input Voltage Range -41.25V -4.25V
MNLM137-K
MICROCIRCUIT DATA SHEET
Electrical Characteristics
PARAMETERS
(The following conditions apply following parameters, unless otherwise specified.) Vin=-4.25V, Il=8mA, Vout=Vref SYMBOL Vref PARAMETER Reference Voltage CONDITIONS NOTES PINNAME UNIT SUBGROUPS
-1.275 -1.225 -1.3 -42V -41.3V -1.2
-1.275 -1.225 -1.3 -1.2
Minimum Load Current
Vout -1.7V Vout -1.7V, -11.75V Vout -1.7V, -42V Vout -1.7V, -41.3V
Rline
Line Regulation
-42V -4.25V -41.3V -4.25V
Rload
Load Regulation
Vin=-6.25V, 1.5A -14.5V, 1.5A Vin=-40V, Vin=-40V,
Iadj
Adjustment Current -42V -41.3V
Delta Iadj /(line) Delta Iadj/ (load) Vrth
Change Line Voltage Change Load Current Thermal Regulation Thermal Recovery Thermal Resistance Current Limit
-42V -4.25V -41.3V -4.25V 1.5A, Vin=-6.25V
-14.5V, Il=1.5mA, t=10mS -14.5V, Il=8mA, t=10mS -40V
Theta
-3.5 -1.2
-1.5 -0.24
MNLM137-K
MICROCIRCUIT DATA SHEET
Electrical Characteristics
PARAMETERS
SYMBOL PARAMETER Ripple Rejection Ratio CONDITIONS Vin= -6.25V, Vout=Vref, f=120Hz, Il=0.5A, ei=1Vrms NOTES PINNAME UNIT SUBGROUPS
PARAMETERS: DRIFT VALUES
(The following conditions apply following parameters, unless otherwise specified.) -4.25V, 8mA, Vout=Vref. "Deltas required B-Level product. Deltas required S-Level product ONLY specified Internal Processing Instructions (IPI)." Vref Rline Iadj Reference Voltage Line Regulation Adjustment Current Note Note Note Guaranteed parameter, tested. Bench test refer (SG) RPI-3-362. Test guaranteed tested +125 -42V -4.25V -0.01 0.01
MNLM137-K
MICROCIRCUIT DATA SHEET
Graphics Diagrams
GRAPHICS# 05191HRB4 K02CRE P000200A DESCRIPTION METAL (KA), TO-3, 2LD, PROFILE (B/I CKT) METAL (KA), TO-3, 2LD, PROFILE (P/P DWG) METAL (KA), TO-3, PROFILE (PINOUT)
attached graphics following this page.
VOUT
ADJUSTMENT
CASE INPUT
LM137K, LM137HVK LEAD CONNECTION DIAGRAM BOTTOM VIEW P000200A
MIL/AEROSPACE OPERATIONS 2900 SEMICONDUCTOR DRIVE SANTA CLARA, 95050
MNLM137-K
MICROCIRCUIT DATA SHEET
Revision History
Date
Originator
Rose Malone
Changes
Update from MNLM137-K, Rev. Fully Released MNLM137-K, Rev. 0A0.
M0003392 03/23/00

TERMINAL ADJUSTABLE NEGATIVE REGULATOR LM137K adjustable 3-termin

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