MICROCIRCUIT DATA SHEET Original Creation Date: 07/12/95 Last Update Date: 03/23/00 Last Major Revision Date: 04/21/99 MNLM137-K REV 0A0 3 TERMINAL ADJUSTABLE NEGATIVE REGULATOR General Description The LM137K is an adjustable 3-terminal negative voltage regulator capable of supplying in excess of -1.5A 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 LM137K features internal current limiting, thermal shutdown and safe-area compensation, making them virtually blowout-proof against overloads. The LM137K serves a wide variety of applications including local on-card regulation, programmable-output voltage regulation or procision current regulation. The LM137K is an ideal complement to the LM117K adjustable positive regulator. Industry Part Number NS Part Numbers LM137 LM137K/883 Prime Die LM137 Processing Subgrp Description MIL-STD-883, Method 5004 1 2 3 4 5 6 7 8A 8B 9 10 11 Quality Conformance Inspection MIL-STD-883, Method 5005 1 Static tests at Static tests at Static tests at Dynamic tests at Dynamic tests at Dynamic tests at Functional tests at Functional tests at Functional tests at Switching tests at Switching tests at Switching tests at Temp ( oC) +25 +125 -55 +25 +125 -55 +25 +125 -55 +25 +125 -55 MICROCIRCUIT DATA SHEET MNLM137-K REV 0A0 Features - Output voltage adjustable from -1.2V to -37V 1.5A 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 2 MICROCIRCUIT DATA SHEET MNLM137-K REV 0A0 (Absolute Maximum Ratings) (Note 1) Power Dissipation (Note 2) Internally Limited Input-Output Voltage Differential 40V Operating Junction Temperature -55 C to +150 C Maximum Junction Temperature (Note 2) 150 C Storage Temperature -65 C to + 150 C Lead Temperature (Soldering, 10 seconds) Thermal Resistance ThetaJA (Still Air) (500LF/Min Air Flow) 300 C 40 C/W 14 C/W ThetaJC Package Weight (Typical) ESD Rating (Note 3) 3 C/W 12750mg 2K Volts Note 1: Note 2: Note 3: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings 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. 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. Human body model, 100pF discharged through 1.5K Ohms Recommended Operating Conditions Ta -55 C to +125 C Input Voltage Range -41.25V to -4.25V 3 MICROCIRCUIT DATA SHEET MNLM137-K REV 0A0 Electrical Characteristics DC PARAMETERS (The following conditions apply to all the following parameters, unless otherwise specified.) DC: Vin=-4.25V, Il=8mA, Vout=Vref SYMBOL Vref Iq Rline Rload Iadj Delta Iadj /(line) PARAMETER CONDITIONS NOTES Reference Voltage Minimum Load Current Line Regulation Load Regulation PINNAME MIN UNIT SUBGROUPS -1.275 -1.225 V 1 -1.3 2, 3 -1.2 V Vin = -42V -1.275 -1.225 V 1 Vin = -41.3V -1.3 -1.2 V 2, 3 Vout = -1.7V 3 mA 1, 2, 3 Vout = -1.7V, Vin = -11.75V 3 mA 1, 2, 3 Vout = -1.7V, Vin = -42V 5 mA 1 Vout = -1.7V, Vin = -41.3V 5 mA 2, 3 -42V < Vin < -4.25V -9 9 mV 1 -41.3V < Vin < -4.25V -23 23 mV 2, 3 Vin=-6.25V, 8mA < Il < 1.5A -25 25 mV 1, 2, 3 Vin = -14.5V, 8mA < Il < 1.5A -25 25 mV 1 Vin=-40V, 8mA < Il < 300 mA -25 25 mV 1 Vin=-40V, 8mA < Il < 250 mA -25 25 mV 2, 3 100 uA 1, 2, 3 Vin = -42V 100 uA 1 Vin = -41.3V 100 uA 2, 3 Adjustment Pin Current Change vs Line Voltage MAX -42V < Vin < -4.25V -5 5 uA 1 -41.3V < Vin < -4.25V -5 5 uA 2, 3 Delta Iadj/ (load) Change vs Load Current 8 mA < Il < 1.5A, Vin=-6.25V -5 5 uA 1, 2, 3 Vrth Thermal Regulation Thermal Recovery Vin = -14.5V, Il=1.5mA, t=10mS -5 5 mV 1 Vin = -14.5V, Il=8mA, t=10mS -5 5 mV 1 3 Deg 1 Theta JC Icl Thermal Resistance Current Limit 1 Vin = -5V -3.5 -1.5 C/W A Vin = -40V -1.2 -0.24 A 4 1, 2, 3 1, 2, 3 MICROCIRCUIT DATA SHEET MNLM137-K REV 0A0 Electrical Characteristics AC PARAMETERS SYMBOL Rr PARAMETER Ripple Rejection Ratio CONDITIONS NOTES Vin= -6.25V, Vout=Vref, f=120Hz, Il=0.5A, ei=1Vrms PINNAME 2, 3 MIN MAX 66 UNIT dB SUBGROUPS 4, 5, 6 DC PARAMETERS: DRIFT VALUES (The following conditions apply to all the following parameters, unless otherwise specified.) DC: Vin = -4.25V, Il = 8mA, Vout=Vref. "Deltas not required on B-Level product. Deltas required for S-Level product ONLY as specified on Internal Processing Instructions (IPI)." Vref Reference Voltage Rline Line Regulation Iadj Adjustment Pin Current Note 1: Note 2: Note 3: -42V < Vin < -4.25V Guaranteed parameter, not tested. Bench test refer to (SG) RPI-3-362. Test at +25 C, guaranteed but not tested at +125 C and -55 C. 5 -0.01 0.01 V 1 -4 4 mV 1 -10 10 uA 1 MICROCIRCUIT DATA SHEET MNLM137-K REV 0A0 Graphics and Diagrams GRAPHICS# DESCRIPTION 05191HRB4 METAL CAN (KA), TO-3, 2LD, LOW PROFILE (B/I CKT) K02CRE METAL CAN (KA), TO-3, 2LD, LOW PROFILE (P/P DWG) P000200A METAL CAN (KA), TO-3, 2 LD, LOW PROFILE (PINOUT) See attached graphics following this page. 6 VOUT ADJUSTMENT CASE IS INPUT LM137K, LM137HVK 2 - LEAD TO3 CONNECTION DIAGRAM BOTTOM VIEW P000200A N MIL/AEROSPACE OPERATIONS 2900 SEMICONDUCTOR DRIVE SANTA CLARA, CA 95050 MICROCIRCUIT DATA SHEET MNLM137-K REV 0A0 Revision History Rev ECN # 0A0 M0003392 03/23/00 Rel Date Originator Changes Rose Malone Update MDS from MNLM137-K, Rev. 0BL to Fully Released MDS MNLM137-K, Rev. 0A0. 7