NTE1936 Integrated Circuit Positive Voltage Regulator, 12V, 2A Features: 3 Pin Plastic Package TO3P Only Output Capacitor is Externally Required Precise Setting Voltage of 2% Wide Input Voltage Range (45V) Builtin Current Foldback Protection Ideal Combination of Passivated Power Transistor and High Reliability FlipChip Circuit Absolute Maximum Ratings: (T = +25C unless otherwise specified) A DC Input Voltage, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45V IN Power Dissipation, P (T =+ 25C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50W C C (No Fin) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2W Thermal Resistance, JunctiontoCase, R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2C/W thJC Junction Temperature Range, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 to +125C j Operating Ambient Temperature Range, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 to +80C op Storage Temperature Range, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 to +125C stg Electrical Characteristics: (T = +25C unless otherwise specified) A Parameter Symbol Test Conditions Min Typ Max Unit DC Input Voltage V I = 2A 15 35 V IN O Output Voltage V V = 19V, I = 0.5A 11.8 12.0 12.2 V O IN O Output Current I 0 2 A O Line Regulation V V = 16V to 22V, I = 0.5A 10 30 mV LINE IN O Load Regulation V V = 19V, I = 0 to 2A 80 200 mV LOAD IN O Temperature Coefficient K 1.5 mV/C t Ripple Rejection 100 to 120H 60 dB Z Foldback Current I 2.4 A S1 ShortCircuit Current I 0.6 A S2External Circuit D 1 21 + 3 C 1 V V IN O DC Input DC Output Note 1. Output capacitor C (47 to 100 f) shall be connected directly to output terminal (Pin1) 1 and GND terminal (PIn3) as shown above. Note 2. When wiring between the regulator and the load is long, another capacitor (47 to 100 f) shall be added in parallel with the load. Note 3. If there is a possibility of reverse biasing between input and output, a protection diode (D ) is to be added. The recommended diode for D is NTE116. 1 1 .190 (4.82) .615 (15.62) V IN .787 (20.0) .591 .126 (3.22) (15.02) Dia .787 (20.0) V V GND O IN .215 (5.47)