NTE NTE959 Datasheet
NTE959
Linear Integrated Circuit
Voltage Regulator, Negative, –18V, 1A
Description:
The NTE959 voltage regulator employs current limiting, thermal shutdown, and safe–area compensation which makes it remarkably rugged under most operating conditions. With adequate heat–
sinking they can deliver output currents in excess of 1.0 amperes.
Features:
D No External Components Required
D Internal Thermal Overload Protection
D Internal Short–Circuit Current Limiting
D Output Transistor Safe–Area Compensation
Absolute Maximum Ratings:
Input Voltage, V
IN
Internal Power Dissipation, P
(TA = +25°C unless otherwise specified)
D
Derate Above +25°C 15.4mW/°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Internal Power Dissipation (T
= +25°C), P
C
D
Derate Above +75°C 200mW/°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum Junction Temperature Range, T
Storage Temperature Range, T
stg
J
Thermal Resistance, Junction–to–Ambient, R
Thermal Resistance, Junction–to–Case, R
Electrical Characteristics:
Parameter Symbol Test Conditions Min Typ Max Unit
Output Voltage V
Line Regulation Reg
Load Regulation Reg
(VIN = –27V, IO = 500mA, TJ = 0° to +125°C unless otherwise specified)
O
LoadTJ
TJ = +25°C –17.3 –18.0 –18.7 V
5mA ≤ IO ≤ 1A, PO ≤ 15W,
–33V ≤ V
TJ = +25°C,
Line
Note 1
Note 1
thJC
= +25°C,
thJA
–17.1 –18.0 –18.9 V
≤ –21V
IN
–33V ≤ VIN ≤ –21V – 25 360
–30V ≤ VIN ≤ –24V – 10 180
5mA ≤ IO ≤ 1.5A – 55 360
250mA ≤ IO ≤ 750mA – 22 180
–35V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Internally Limited. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Internally Limited. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–55° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–65° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
65°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
mV
mV
Electrical Characteristics: (VIN = –27V, IO = 500mA, TJ = 0° to +125°C unless otherwise specified)
Parameter Symbol Test Conditions Min Typ Max Unit
Quiescent Current I
Quiescent Current Change ∆I
B
TJ = +25°C – 4.5 8.0 mA
–33V ≤ VIN ≤ –21V – – 1.0 mA
B
5mA ≤ IO ≤ 1A – – 0.5
Ripple Rejection RR 32V ≤ VIN ≤ 21V, f = 120Hz – 57 – dB
Dropout Voltage VIN – VOTJ = +25°C, IO = 1A – 2.0 – V
Output Noise Voltage V
Output Resistance r
Short–Circuit Current Limit I
Peak Output Current I
Average Temperature
TCV
O
sc
max
TA = +25°C, 10Hz ≤ f ≤ 100kHz – 10 – µV/V
n
f = 1kHz – 19 – mΩ
TA = +25°C, VIN = 35V – 0.2 – A
TJ = +25°C – 2.2 – A
O
– –1.1 – mV/°C
Coefficient of Output
Voltage
Note 1. Load and line regulation are specified at constant junction temperature. Changes in V
due to heating effects must be taken into account spearately. Pulse testing with low duty
cycle is used.
.420 (10.67)
Max
O
O
.147 (3.75)
Dia Max
.070 (1.78)
Max
.100 (2.54)
GND
.110 (2.79)
(12.7)
.250 (6.35)
Max
(12.7)
V
OUT
V
/Tab
IN
.500
Max
.500
Min
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