Description:

The NTE950, NTE951, and NTE977 are positive 3–terminal voltage regulators in available in a TO92 type package. With adequate heat sinking these regulators can deliver 100mA output current. Current 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 effective 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, instrumentation, 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, VOUT

NTE977 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V

NTE950 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V

NTE951 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V

Input Voltage, VIN

NTE977 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30V

NTE950, NTE951 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35V

Internal Power Dissipation (Note 1), PD . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited

Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C

Maximum Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +125°C

Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . –55°C to +150°C

Lead Temperature (Soldering, 10 sec), TL . . . . . . . . .. . . . . . . . . . . . . . . . . . . +260°C