Maker : National Semiconductor
Part No. : LM333T

  Datasheet PDF : LM333T.pdf
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Product Information

LM133/LM333 3-Ampere Adjustable Negative Regulators May 1998 LM133/LM333 3-Ampere Adjustable Negative Regulators General Description The LM133/LM333 are adjustable 3-terminal negative voltage regulators capable of supplying in excess of −3.0A over an output voltage range of −1.2V to −32V. These regulators are 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. Further, the LM133 series features internal current limiting, thermal shutdown and safe-area compensation, making them substantially immune to failure from overloads. The LM133/LM333 serve a wide variety of applications including local on-card regulation, programmable-output voltage regulation or precision current regulation. The LM133/ LM333 are ideal complements to the LM150/LM350 adjustable positive regulators. Features n n n n n n n n n n n Output voltage adjustable from −1.2V to −32V 3.0A output current guaranteed, −55˚C to +150˚C Line regulation typically 0.01%/V Load regulation typically 0.2% Excellent rejection of thermal transients 50 ppm/˚C temperature coefficient Temperature-independent current limit Internal thermal overload protection P+ Product Enhancement tested Standard 3-lead transistor package Output is short circuit protected Connection Diagrams TO-3 Metal Can Package TO-220 Plastic Package DS009065-1 Bottom View Steel TO-3 Metal Can Package (K STEEL) Order Number LM133K STEEL or LM333K STEEL See NS Package Number K02A DS009065-2 Front View 3-Lead TO-220 Plastic Package (T) Order Number LM333T See NS Package Number T03B © 1999 National Semiconductor Corporation DS009065 www.national.com Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Power Dissipation Input-Output Voltage Differential Operating Junction Temperature Range LM133 LM333 Internally Limited 35V TMIN to TMAX −55˚C to +150˚C −40˚C to +125˚C Storage Temperature Lead Temperature (Soldering, 10 sec.) TO-3 Package TO-220 Package ESD Susceptibility −65˚C to +150˚C 300˚C 260˚C TBD Electrical Characteristics LM133 Specifications with standard typeface are for TJ = 25˚C, and those with boldface type apply over the full operating temperature range. (Note 3) Parameter Reference Voltage IL = 10 mA 3V ≤ |VIN − VOUT| ≤ 35V 10 mA ≤ IL ≤ 3A, P ≤ PMAX Line Regulation Load Regulation Thermal Regulation Temperature Stability Long Term Stability Adjust Pin Current Adjust Pin Current Change Minimum Load Current Current Limit (Note 5) Output Noise (% of VOUT) Ripple Rejection VOUT = 10V, f = 120 Hz CADJ = 0 µF CADJ = 10 µF Thermal Resistance Junction-to-Case Thermal Shutdown Temperature 163 150 190 ˚C TO-3 Package (K STEEL) 60 77 1.2 1.8 ˚C/W dB 10 mA ≤ IL ≤ 3A 3.0V ≤ |VIN − VOUT| ≤ 35V |VIN − VOUT| ≤ 35V |VIN − VOUT| ≤ 10V 3V ≤ |VIN − VOUT| ≤ 10V |VIN − VOUT| = 20V |VIN − VOUT| = 30V 10 Hz to 10 kHz 2.5 1.2 3.9 2.4 0.4 0.003 3.0 1.25 0.3 % (rms) A 5.0 2.5 mA 3V ≤ |VIN − VOUT| ≤ 35V IOUT = 50 mA (Note 4) 10 mA ≤ IOUT ≤ 3A, P ≤ PMAX (Notes 4, 5) 10 ms Pulse TMIN ≤ TJ ≤ TMAX TJ = 125˚C, 1000 Hours 0.01 0.02 0.2 0.4 0.002 0.4 0.15 65 70 2 90 100 6 µA 0.02 0.05 0.5 1.0 0.01 % /W % % µA % % /V Conditions Typical −1.250 −1.250 Min (Note 2) −1.238 −1.225 Max (Note 2) −1.262 −1.275 V V Units Electrical Characteristics LM333 Specifications with standard typeface are for TJ = 25˚C, and those with boldface type apply over the full operating temperature range. (Note 3) Parameter Reference Voltage Conditions IL = 10 mA 3V ≤ |VIN − VOUT| ≤ 35V 10 mA ≤ IL ≤ 3A, P ≤ PMAX Typical −1.250 −1.250 Min (Note 2) −1.225 −1.213 Max (Note 2) −1.275 −1.287 V Units www.nationa...

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