NTE1979
Integrated Circuit
Negative 3 Terminal Voltage Regulator,
–8V, 100mA
Description:
The NTE1979 is a 3–terminal fixed negative output voltage regulatgor in a TO92 type package
designed for use in power circuits with current capacity up to 100mA. Stabilized fixed output voltage
is obtained from unstable DC input voltage without the use of external components.
Features:
D No External Components
D Output Current in Excess of 100mA
D Built–In Short–Circuit Current Limiting
D Built–In Thermal Overload Protection
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Input Voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –35V
Power Dissipation (Note 1), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 650mW
Operating Ambient Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +80°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C
Note 1. When TJ exceeds +150°C, the internal circuit cuts off the output.
Electrical Characteristics: (TA = +25°C, VI = –14V, IO = 40mA, Ci = 2µF, Co = 1µF unless
otherwise specified)
Parameter
Output Voltage
Symbol
Test Conditions
Min
Typ Max Unit
V
O
T = +25°C
–7.68 –8.0 –8.32
V
V
J
Output Voltage Tolerance
V
O
V = –11V to –23V, I = 1mA to 70mA,
–7.6
–
–8.4
I
J
O
T = 0° to +125°C
Line Regulation
REG
V = –10V to –24V, T = +25°C
–
–
–
–
–
–
160
80
mV
mV
mV
mA
IN
I
J
V = –11V to –21V, T = +25°C
I
J
Load Regulation
REG
I = 1mA to 100mA, T = +25°C
15
7
80
L
O
J
I = 1mA to 40mA, T = +25°C
40
O
J
Note 2. The specified condition TJ = +25°C means that the test should be carried out with the test
time so short (within 10ms) that the drift in characteristic value due to the rise in chip junction
temperature can be ignored.