NTE953 Linear Integrated Circuit 4 Terminal Positive Adjustable Voltage Regulator Description: The NTE953 4Terminal adjustable voltage regulator is designed to deliver continuous load currents of up to 1.0A with a maximum input voltage of +40V. Output current capability can be increased to greater than 1.0A through the use of one or more external transistors. The output voltage range is 5V to 30V. For systems requiring both a positive and negative, the NTE953 and NTE954 are excellent for use as a dual tracking regulator with appropriate external circuitry. Features: Output Current in Excess of 1A Positive Output 5V to 30V Internal Thermal Overload Protection Internal Short Circuit Protection Output Transistor Safe Area Protection Power Watt Package Absolute Maximum Ratings: Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V Control Pin Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V V OUT Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 C to 150 C Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55C to +150 C Lead Temperature (During soldering, 10s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +230 CElectrical Characteristics: (0C T 125C, V = 10V, I = 500mA, C = 0.33F, J IN OUT IN C = 0.1F, unless otherwise specified.) OUT Parameter Test Conditions (Note 1, Note 3) Min Typ Max Unit Input Voltage Range T = 25 C 7.5 40 V J Output Voltage Range V = V +5V 5.0 30 V IN OUT Output Voltage Tolerance V +3V V V +15V, T = 25 C 4.0 %(V ) J OUT OUT IN OUT 5mA 5mA I I 10 1.0AA, OUTOUT 5.0 %(V ) OUT P 15W, V = 38V D IN (max) Line Regulation T = 25 C, V 10V, %(V ) J OUT OUT (V 2.5V) V (V +20V) 1.0 OUT IN OUT T = 25 C, V 10V, %(V ) J OUT OUT (V +3V) V (V +15V) 0.75 OUT IN OUT (V +3V) V (V +7V) 0.67 OUT IN OUT Load Regulation 250mA I 750mA 1.0 %(V ) OUT OUT TT = 25 25 C,C, JJ V = V +5V IN OUT 5mA I 1.5A 2.0 %(V ) OUT OUT Control Pin Current T = 25 C 1.0 5.0 A J 8.0 A Quiescent Current T = 25 C 3.2 5.0 A J 6.0 A Ripple Rejection 8V V 18V, V = 5V, f = 120Hz 62 78 dB IN OUT Output Noise Voltage T = 25 C, 10Hz f 100kHz, 8 40 V/V J OUT V = 5V, I = 5mA OUT OUT Dropout Voltage Note 2 2.5 V Short Circuit Current T = 25 C, V = 30V 0.75 1.2 A J IN Peak Output Current T = 25 C 1.3 2.2 3.3 A J Average Temperature mV/ C/ T = 55C to +25 C 0.4 J VV = 5V 5V,, OUOUTT CoefCoefficient officient of VV OUTOUT I = 5mA OUT T = +25C to +150 C 0.3 Output Voltage J Control Pin Voltage T = 25 C 4.8 5.0 5.2 V J (Reference)(Reference) 4.75 5.25 V R1 + R2 Note 1. V is defined as: V = (5.0) OUT OUT R2 Note 2. Dropout Voltage is defined as that inputoutput voltage differential which causes the output voltage to decrease by 5% of its initial value. Note 3. All characteristics except noise voltage and ripple rejection ratio are measured using pulse techniques (t 10ms, duty cycle 5%). Output voltage changes due to changes in internal W temperature must be taken into account separately.