Datasheet Texas Instruments LM237

ManufacturerTexas Instruments
SeriesLM237
Datasheet Texas Instruments LM237

3 Pin 1.5A Adjustable Negative Voltage Regulator

Datasheets

LMx37 3-Terminal Adjustable Regulators datasheet
PDF, 1.3 Mb, Revision: L, File published: Jan 12, 2015
Extract from the document

Prices

Status

LM237KCLM237KCE3LM237KCSE3LM237KTER
Lifecycle StatusObsolete (Manufacturer has discontinued the production of the device)Obsolete (Manufacturer has discontinued the production of the device)Active (Recommended for new designs)Obsolete (Manufacturer has discontinued the production of the device)
Manufacture's Sample AvailabilityNoNoNoYes

Packaging

LM237KCLM237KCE3LM237KCSE3LM237KTER
N1234
Pin3333
Package TypeKCKCKCSKTE
Industry STD TermTO-220TO-220TO-220PFM
JEDEC CodeR-PSFM-TR-PSFM-TR-PSFM-TR-PSFM-G
Device MarkingLM237LM237LM237
Width (mm)9.029.028.78
Length (mm)10.1710.1710.169.4
Thickness (mm)4.584.584.581.91
Pitch (mm)2.542.542.542.54
Max Height (mm)4.74.74.72.03
Mechanical DataDownloadDownloadDownloadDownload
Package QTY50
CarrierTUBE

Parametrics

Parameters / ModelsLM237KC
LM237KC
LM237KCE3
LM237KCE3
LM237KCSE3
LM237KCSE3
LM237KTER
LM237KTER
Accuracy, %4
Accuracy(%)222
Additional FeaturesOvercurrent Protection
Thermal Shutdown
Overcurrent Protection
Thermal Shutdown
Overcurrent Protection
Thermal Shutdown
Approx. Price (US$)0.37 | 1ku0.37 | 1ku0.37 | 1ku
Iout(Max), A1.5
Iout(Max)(A)1.51.51.5
Iq(Typ), mA0.065
Iq(Typ)(mA)0.0650.0650.065
Noise, uVrms1110
Operating Temperature Range, C-25 to 150
Operating Temperature Range(C)-25 to 150-25 to 150-25 to 150
Output Capacitor TypeCap Free
Non-Ceramic
Cap Free
Non-Ceramic
Cap Free,Non-CeramicCap Free
Non-Ceramic
Output OptionsAdjustable Output
Negative Output
Adjustable Output
Negative Output
Adjustable Output,Negative OutputAdjustable Output
Negative Output
PSRR @ 100KHz, dB19
Package GroupTO-220TO-220TO-220TO-220
Package Size: mm2:W x L, PKGSee datasheet (TO-220)
Package Size: mm2:W x L (PKG)See datasheet (TO-220)See datasheet (TO-220)See datasheet (TO-220)
See datasheet (PFM)
Powered LoadFPGA
Microcontroller
Microprocessor
FPGA
Microcontroller
Microprocessor
FPGA
Microcontroller
Microprocessor
RatingCatalogCatalogCatalogCatalog
Regulated Outputs1
Regulated Outputs(#)111
Special FeaturesN/A
Thermal Resistance ОёJA, В°C/W23
Vdo(Typ), mV2000
Vdo(Typ)(mV)200020002000
Vin(Max), V-3
Vin(Max)(V)-3-3-3
Vin(Min), V-40
Vin(Min)(V)-40-40-40
Vout(Max), V-1.2
Vout(Max)(V)-1.2-1.2-1.2
Vout(Min), V-37
Vout(Min)(V)-37-37-37

Eco Plan

LM237KCLM237KCE3LM237KCSE3LM237KTER
RoHSNot CompliantNot CompliantCompliantNot Compliant
Pb FreeNoNoNoYes

Application Notes

  • AN-178 Applications for an Adjustable IC Power Regulator (Rev. B)
    PDF, 219 Kb, Revision: B, File published: May 5, 2013
    This application report provides applications for the Texas Instruments LM117 3-terminal adjustableregulator.
  • High Stability Regulators
    PDF, 104 Kb, File published: Oct 3, 2002
  • AN-42 IC Provides On-Card Regulation for Logic Circuits (Rev. B)
    PDF, 593 Kb, Revision: B, File published: May 6, 2013
    This application report provides on-card regulation for logic circuits.
  • Adjustable 3-Terminal Regulator for Low-Cost Battery Charging Systems
    PDF, 104 Kb, File published: Oct 3, 2002
  • High-Efficiency Reg has Low Drop-Out Voltage (Rev. B)
    PDF, 60 Kb, Revision: B, File published: Apr 23, 2013
    Conventional regulators have a high drop-out voltage that is a function of the total output current.However with just a regulator chip an external transistor and a few passive components this designforms a high output current regulator with a limited input voltage and high efficiency. The circuit presentedhas a drop-out of 0.7V at 5A load current and 1.3V at a current level of as high as
  • A New Production Technique for Trimming Voltage Regulators
    PDF, 105 Kb, File published: Oct 3, 2002
  • AB-12 Wide Adjustable Range PNP Voltage Regulator (Rev. B)
    PDF, 47 Kb, Revision: B, File published: May 6, 2013
    This application note discusses the PNP voltage regulator.
  • AN-182 Improving Power Supply Reliability with IC Power Regulators (Rev. B)
    PDF, 82 Kb, Revision: B, File published: May 5, 2013
    This application report discusses improving power supply reliability with IC power regulators.
  • AN-181 3-Terminal Regulator is Adjustable (Rev. B)
    PDF, 314 Kb, Revision: B, File published: May 5, 2013
    Until now all of the 3-terminal power IC voltage regulators have a fixed output voltage. In spite of this limitation their ease of use low cost and full on-chip overload protection have generated wide acceptance. Now with the introduction of the LM117 it is possible to use a single regulator for any output voltage from 1.2 V to 37 V at 1.5A. Selecting close-tolerance outp
  • AN-1061 Power Conversion in Line-Powered Equipment (Rev. B)
    PDF, 406 Kb, Revision: B, File published: Apr 23, 2013
    This application note describes line-powered equipment and power conversion techniques or methods tosolve those typical power needs.
  • Method For Cal Output Voltage Tolerances in Adj Regs (Rev. A)
    PDF, 284 Kb, Revision: A, File published: May 5, 2013
    When working with voltage regulator circuits the designer is often confronted with the need to calculatethe tolerance of the regulated output voltage. For fixed voltage regulators this problem is easily managedbecause the required information is directly supplied on the semiconductor manufacturer's data sheet.
  • AN-1148 Linear Regulators: Theory of Operation and Compensation (Rev. B)
    PDF, 300 Kb, Revision: B, File published: May 6, 2013
    This application note discusses the operation and compensation of linear regulators.
  • LDO PSRR Measurement Simplified (Rev. A)
    PDF, 131 Kb, Revision: A, File published: Aug 9, 2017
    This applicationreportexplainsdifferentmethodsof measuringthe PowerSupplyRejectionRatio(PSRR)of a Low-Dropout(LDO)regulatorand includesthe prosand consof thesemeasuringmethods
  • LDO Noise Demystified (Rev. A)
    PDF, 785 Kb, Revision: A, File published: Aug 9, 2017
    Thisapplicationreportexplainsthe differencebetweennoiseand PSRRof an LDO.It also explainsthedifferentwaysnoiseis specifiedin LDOdatasheetsandwhichspecificationshouldbe usedin theapplication.Finallyit explainshow LDOnoiseis reduced.

Model Line

Manufacturer's Classification

  • Semiconductors> Power Management> Linear Regulator (LDO)> Single Channel LDO