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NTE1917
Integrated Circuit
Negative 3 Terminal Voltage Regulator,
–5V, 100mA
Description:
The NTE1917 voltage regulator is an inexpensive, easy–to–use device in a TO92 type p ackage s uitable
for a multitude of a pplications t hat r equire a r egulated s upply o f u p t o 1 00mA. This d evice f eatures i nternal
current limiting a nd t hermal s hutdown m aking t he N TE1917 r emarkably r ugged. N o e xternal c omponents
are required in many applications.
The NTE1917 is useful for on–card regulation or any other application where a regulated negative
voltage at a modest current level is needed. It offers a substantial performance advantage over the
common zener diode–resistor approach.
Features:
D Low Cost
D ±5% Tolerance
D Internal Short–Circuit Current Limiting
D Internal Thermal Overload Protection
D No External Components Required
Absolute Maximum Ratings:
Input Voltage, V
I
(TA = +25°C unless otherwise specified)
Operating Junction Temperature Range, T
Storage Junction Temperature Range, T
Electrical Characteristics:
(VI = –10V, IO = 40mA, CI = 0.33µF, CO = 0.1µF, 0° < TJ < +125°C
stg
unless otherwise specified)
Parameter Symbol Test Conditions Min Typ Max Unit
Output Voltage V
Line Regulation Reg
TJ = +25°C –4.8 –5.0 –5.2 V
O
–7V ≥ VI ≥ –20V, 1mA ≤ IO ≤ 40mA –4.75 – –5.25 V
VI = –10V, 1mA ≤ IO ≤ 70mA –4.75 – –5.25 V
TJ = +25°C
line
–30V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
J
0° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–65° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–7V ≥ VI ≥ –20V – – 150 mV
–8V ≥ VI ≥ –20V – – 100 mV
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Electrical Characteristics (Cont’d): (VI = –10V, IO = 40mA, CI = 0.33µF, CO = 0.1µF,
0° < T
Parameter Symbol Test Conditions Min Typ Max Unit
< +125°C unless otherwise specified)
J
Load Regulation Reg
Input Bias Current I
Input Bias Current Change ∆I
Output Noise Voltage V
Long–Term Stability ∆VO/∆t – 12 – mV/1kHrs
Ripple Rejection RR –8V ≥ VI ≥ –18V, f = 120Hz, TJ = +25°C 41 49 – dB
Input–Output Voltage
Differential
loadTJ
IB
IB
n
|VI/VO| IO = 40mA, TJ = +25°C – 1.7 – V
= +25°C, 1mA ≤ IO ≤ 100mA – – 60 mV
1mA ≤ IO ≤ 40mA – – 30 mV
TJ = +25°C – – 6.0 mA
TJ = +125°C – – 5.5 mA
–8V ≥ VI ≥ –20V – – 1.5 mA
1mA ≤ IO ≤ 40mA – – 0.1 mA
TA = +25°C, 10Hz ≤ f ≤ 100kHz – 40 – µV
.135 (3.45) Min
.210
(5.33)
Seating Plane
Max
.500
(12.7)
Min
.100 (2.54)
.105 (2.67) Max
.205 (5.2) Max
GND
V
IN
V
OUT
.021 (.445) Dia Max
.050 (1.27)
.165 (4.2) Max
.105 (2.67) Max
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