NTE970 Linear Integrated Circuit 3Terminal Adjustable Positive Voltage Regulator 1.2V to 33V, 3A Description: The NTE970 is an adjustable 3terminal positive voltage regulator in a TO3 type package capable of supplying in excess of 3 Amps over a 1.2V to 33V output range. Features: Adjustable Output Down to 1.2V Guaranteed 3A Output Current Line Regulation Typically 0.005%/V Load Regulation Typically 0.1% Thermal Regulation Current Limit Constant with Temperature Absolute Maximum Ratings: InputOutput Voltage Differential, V V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35V I O Power Dissipation, P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited D Operating Junction Temperature Range, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to +125C J Storage Temperature Range, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 to +150C stg Thermal Resistance, JunctiontoCase, R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5C/W thJC Lead Temperature (During Soldering, 10sec), T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300C L Electrical Characteristics: (V V = 5V, I = 1.5A, P = 30W, 0 T +125C unless I O O max J otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit Line Regulation Reg T = +25C, 3V V V 35V, Note 1 0.005 0.030 %/V line A I O Load Regulation Reg V 5V T = +25C, 0mA I 3A, 5 25 mV O load A O Note 1 V 5V 0.1 0.5 %V O O Note 1. Regulation is measured at constant junction temperature. Change in output voltage due to heating effects must be taken into account separately. Pulse testing with low duty cycle is used.Electrical Characteristics (Contd): (V V = 5V, I = 1.5A, P = 30W, 0 T +125C I O O max J unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit Thermal Regulation Reg T = +25C, Pulse = 20ms 0.002 %V /W therm A O Adjustment Pin Current I 50 100 A Adj Adjustment Pin Current Change I 10mA I 3A, 3V (V V ) 35V 0.2 5.0 A Adj L I O Reference Voltage V 10mA I 3A, 3V (V V ) 35V, 1.20 1.25 1.30 V ref O I O P 30W Line Regulation Reg 3V (V V ) 35V, Note 1 0.02 0.07 %/V line I O V 5V 20 70 mV Load Regulation Reg 10mA I 3A, Note 1 O load O V 5V 0.3 1.5 %V O O Temperature Stability T 0 T +125C 1 %V S J O Minimum Load Current I V V = 35V 3.5 10 mA Lmin I O Maximum Output Current Limit I V V 10V 3.0 4.5 A max I O V V = 30V 1.0 A I O RMS Noise, % of V N T = +25C, 10Hz f 10kHz 0.003 %V O A O Ripple Rejection Ratio RR V = 10V, f = 120Hz 65 dB O C = 10 F 66 86 dB Adj Long Term Stability S T = +125C 0.3 1.0 %/1.0k A Note 1. Regulation is measured at constant junction temperature. Change in output voltage due to heating effects must be taken into account separately. Pulse testing with low duty cycle is used. .135 (3.45) Max .350 (8.89) .875 (22.2) Dia Max Seating Plane .312 (7.93) Min .040 (1.02) V 1.187 (30.16) IN .665 .215 (5.45) (16.9) .156 (3.96) Dia (2 Holes) .430 (10.92) .188 (4.8) R Max .525 (13.35) R Max V /Case Adjust OUT