LM337KSTEEL ,3-Terminal Adjustable Negative RegulatorApplications Comparison between SOT-223 andD-Pak (TO-252) PackagesAdjustable Negative Voltage Regul ..
LM337KTPR ,3-Terminal, 1.5A Adjustable Negative Voltage RegulatorFeatures 3 DescriptionThe LM237 and LM337 are adjustable 3-terminal1• Output Voltage Range Adjustab ..
LM337KTTR ,3 Pin 1.5A Adjustable Negative Voltage Regulator 3-DDPAK/TO-263 0 to 125Block Diagram..... 75 Revision HistoryChanges from Revision K (November 2007) to Revision L Page• A ..
LM337L ,3-Terminal Adjustable Regulatorapplications. Since the regulator isn Standard 3-lead transistor package“floating” and sees only th ..
LM337LM ,3-Terminal Adjustable RegulatorGeneral DescriptionLM337L can be used as a precision current regulator. Sup-The LM337L is an adjust ..
LM337LM/NOPB ,3-Terminal 100mA Adjustable Negative Voltage Regulator 8-SOIC -25 to 100Maximum Ratings may cause permanent damage to the device. These are stress ratingsonly, which do no ..
LMH0002 ,SMPTE 292M / 259M Serial Digital Cable DriverFEATURES APPLICATIONS2• SMPTE 292M, SMPTE 344M and SMPTE 259M • SMPTE 292M, SMPTE 344M, and SMPTE 2 ..
LMH0002MA , LMH0002 SMPTE 292M / 259M Serial Digital Cable Driver
LMH0002MA/NOPB ,SMPTE 292M / 259M Serial Digital Cable Driver 8-SOIC -40 to 85Electrical Characteristics(1)Over Supply Voltage and Operating Temperature ranges, unless otherwise ..
LMH0002SQ ,SMPTE 292M / 259M Serial Digital Cable Driver 16-WQFN Maximum RatingsSupply Voltage:−0.5V to 3.6VInput Voltage (all inputs)−0.3V to V +0.3VCCOutput Curre ..
LMH0002SQ/NOPB ,SMPTE 292M / 259M Serial Digital Cable Driver 16-WQFN Maximum Ratings" are those parameter values beyond which the life and operation of the device canno ..
LMH0002TMA ,SMPTE 292M / 259M Serial Digital Cable Driver 8-SOIC -40 to 85Electrical Characteristics(1)(2)Over Supply Voltage and Operating Temperature ranges, unless otherw ..
LM337KSTEEL
3-Terminal Adjustable Negative Regulator
LM137/LM337
3-Terminal Adjustable Negative Regulators
General DescriptionThe LM137/LM337are adjustable 3-terminal negative volt-
age regulators capableof supplyingin excessof −1.5Aover output voltage rangeof −1.2Vto −37V. These regulators
are exceptionally easyto apply, requiring only2 externalre-
sistorstosetthe output voltageand1 output capacitorfor
frequency compensation. The circuit designhas been opti-
mizedfor excellent regulation andlow thermal transients.
Further,the LM137 series features internal current limiting,
thermal shutdown and safe-area compensation, making
them virtually blowout-proof against overloads.
The LM137/LM337 servea wide varietyof applicationsin-
cluding local on-card regulation, programmable-output volt-
age regulationor precision current regulation. The LM137/
LM337 are ideal complementsto the LM117/LM317
adjustable positive regulators.
Features Output voltage adjustable from −1.2Vto −37V 1.5A output current guaranteed, −55˚Cto +150˚C Line regulation typically 0.01%/V Load regulation typically 0.3% Excellent thermal regulation, 0.002%/W77dB ripple rejection Excellent rejectionof thermal transients50 ppm/˚C temperature coefficient Temperature-independent currentlimit Internal thermal overload protectionP+ Product Enhancement tested Standard 3-lead transistor package Outputis short circuit protected
LM137 Series Packages and Power
Capability
Rated Design
Device Package Power Load
Dissipation CurrentLM137/337 TO-3(K) 20W 1.5A
TO-39(H) 2W 0.5A
LM337 TO-220(T) 15W 1.5A
LM337 SOT-223
(MP) 1A
Typical Applications Comparison between SOT-223 and
D-Pak (TO-252) PackagesAdjustable Negative Voltage RegulatorDS009067-1
Full output currentnot available athigh input-outputvoltages
†C1=1μFsolid tantalumor10μF aluminum electrolytic requiredfor
stability
*C2=1μFsolid tantalumis requiredonlyif regulatorismore than4"from
power-supplyfilter capacitor
Output capacitorsinthe rangeof1 μFto1000μFof aluminumor tantalum
electrolyticare commonly usedto provide improved output impedanceandrejection oftransients
DS009067-31
Scale1:1May 1999
LM137/LM337
3-T
erminal
Adjustable
Negative
Regulators 1999 National Semiconductor Corporation DS009067
