NTE950/NTE951/NTE977 Integrated Circuit Positive 3 Terminal Voltage Regulator, 100mA Description: The NTE950, NTE951, and NTE977 are positive 3terminal voltage regulators in available in a TO92 type package. With adequate heat sinking these regulators can deliver 100mA output current. Cur- rent limiting is included to limit peak output current to safe value. Safe area protection for the output transistors is provided to limit internal power dissipation. If internal power dissipation becomes too high for the heat sinking provided, the thermal shutdown circuit takes over preventing the IC from overheating. When used as a zener diode/resistor combination replacement, these devices usually result in an ef- fective output impedance improvement of two orders of magnitude, and lower quiescent current. These regulators can provide local on card regulation, eliminating the distribution problems associated with single point regulation. Typical applications include use in logic systems, instrumen- tation, HiFi, and other solid state electronic equipment. Although designed primarily as fixed voltage regulators these devices can be used with external components to obtain adjustment voltages and currents. Features: Output Voltage Tolerances of 5% over the Temperature Range Output Current of 100mA Internal Thermal Overload Protection Output Transistor Safe Area Protection Internal Short Circuit Current Limit Absolute Maximum Ratings: Output Voltage, V OUT NTE977 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V NTE950 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V NTE951 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V Input Voltage, V IN NTE977 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30V NTE950, NTE951 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35V Internal Power Dissipation (Note 1), P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited D Operating Temperature Range, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0C to +70C opr Maximum Junction Temperature, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +125C J Storage Temperature Range, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55C to +150C stg Lead Temperature (Soldering, 10 sec), T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +260C L Note 1. Thermal resistance is typically +60C/W junction to case, +232C/W junction to ambient, and +88C/W junction to ambient at 400ft min of air. The maximum junction temperature shall not exceed +125C on Electrical parameters.Electrical Characteristics: (T = 0 to +125C, I = 40mA, C = 0.33 F, C = 0.1 F, Note 2 J O IN O unless otherwise specified) NTE Type Number NTE977 NTE950 NTE951 Input Voltage (unless otherwise specified) V = 10V V = 19V V = 23V IN IN IN Parameter Symbol Test Conditions Min Typ Max Min Typ Max Min Typ Max Unit Output Voltage V T = +25C 4.8 5.0 5.2 11.5 12.0 12.5 14.4 15.0 15.6 V O J (Note 4) 1mA I 70mA 4.75 5.25 11.4 12.6 14.25 15.75 V O 1mA I 70mA 4.75 5.25 11.4 12.6 14.25 15.75 V O V V V (7 V 20) (14.5 V 27) (17.5 V 30) MIN IN MAX IN IN IN Line Regulation V T = +25C 10 54 20 110 25 140 mV O J (8 V 20) (16 V 27) (20 V 30) V IN IN IN 18 75 30 180 37 250 mV (7 V 20) (14.5 V 27) (17.5 V 30) V IN IN IN Load Regulation V T = +25C, 5 30 10 50 12 75 mV O J 1mA I 40mA O T = +25C, 20 60 30 100 35 150 mV J 1mA I 100mA O Long Term Stability V 12 24 30 mV O 1000Hrs Quiescent Current I T = +25C 3 5 3 5 3.1 5 mA Q J T = +125C 4.7 4.7 4.7 mA J I 1mA I 40mA 0.1 0.1 0.1 mA Quiescent Current Q O Change V V V 1.0 1.0 1.0 mA MIN IN MAX (8 V 20) (16 V 27) (20 V 30) V IN IN IN Output Noise V T = +25C, Note 3, 40 80 90 V n J Voltage f = 10Hz to 10kHz Ripple Rejection f = 120Hz 47 62 40 54 37 51 dB V ININ V (8 V 16) (15 V 25) (18.5 V 28.5) V OUT IN IN IN Input Voltage T = +25C 7 14.5 17.5 V J Required to Maintain Line Regulation Note 2. The maximum steady state usable output current and input voltage are very dependent on the heat sinking and/or lead length of the package. The data above represent pulse test conditions with junction temperatures as indicated at the initiation of test. Note 3. Recommended minimum load capacitance of 0.01 F to limit high frequency noise band- width. Note 4. The temperature coefficient of V is typically within 0.01% V /C. OUT O