NTE NTE988 Datasheet
NTE988
Integrated Circuit
Positive 3 Terminal Voltage Regulator, 100mA
Description:
The NTE988 is a 3–terminal positive voltage regulator in a TO92 type package and employs internal
current–limiting and thermal shutdown, making it essentially indestructible. If adequate heat sinking
is provided, this device can deliver up to 100mA output current. The NTE988 is intended for use as
a fixed voltage regulator in a wide range of applications including local (on–card) regulation for elimination of noise and distribution problems associated with single–point regulation. In addition, this device can be used with power pass elements to make a high current voltage regulator. When used as
a Zener diode/resistor combination replacement, the NTE988 offers an effective output impedance
improvement of typically two orders of magnitude, along with lower quiescent current and lower noise.
Features:
D Output Current up to 100mA
D No External Components
D Internal Thermal Overload Protection
D Internal Short Circuit Current–Limiting
D Output Voltage Tolerance of ±5% over the Temperature Range
Absolute Maximum Ratings:
Input Voltage, V
Internal Power Dissipation, P
IN
D
Operating Junction Temperature Range, T
Storage Temperature Range, T
Lead Temperature (Soldering, 10 sec), T
stg
L
Internally Limited. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A
0°C to +125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–65°C to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
35V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
+265°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics: (0° ≤ TJ ≤ +125°C, VIN = 12V, IO = 40mA, CIN = 0.33µF, CO = 0.1µF,
Note 1 unless otherwise specified)
Parameter Symbol Test Conditions Min Typ Max Unit
Output Voltage V
Line Regulation V
R(LINE)TJ
TJ = +25°C 5.95 6.20 6.45 V
O
= +25°C 8.5V ≤ VI ≤ 20V – 65 175 mV
9.0V ≤ VI ≤ 20V – 55 125 mV
Note 1. The maximum steady state usable output current and input voltage are very dependent on
the heat sinking and/or lead length of the package. The data above represents pulse test
conditions with junction temperatures as indicated at the initiation of the tests.
Electrical Characteristics (Cont’d): (0° ≤ TJ ≤ +125°C, VIN = 12V, IO = 40mA, CIN = 0.33µF,
= 0.1µF, Note 1 unless otherwise specified)
C
O
Parameter Symbol Test Conditions Min Typ Max Unit
Load Regulation V
R(LOAD)TJ
= +25°C 1mA ≤ IO ≤ 100mA – 13 80 mV
1mA ≤ IO ≤ 40mA – 6 40 mV
Output Voltage (Note 2) V
Quiescent Current I
Quiescent Current Change
∆I
With Line
Q
8.5V ≤ VI ≤ 20V 1mA ≤ IO ≤ 40mA 5.9 – 6.5 V
O
8.5V ≤ VI ≤ V
1mA ≤ IO ≤ 70mA 5.9 – 6.5 V
Max
– 2.0 5.5 mA
Q
8.0V ≤ VI ≤ 20V – – 1.5 mA
With Load 1mA ≤ IO ≤ 40mA – – 0.1 mA
Noise N
TA = +25°C, 10Hz ≤ f ≤100kHz – 50 – µV
O
Ripple Rejection ∆VI/∆VOf = 120Hz, 10V ≤ VI ≤ 20V, TJ = +25°C 40 46 – dB
Dropout Voltage V
Peak Output/Output
Ipk/I
DO
TJ = +25°C – 1.7 – V
TJ = +25°C – 140 – mA
OS
Short Circuit Current
Average Temperature
∆VO/∆T IO = 5mA – –0.75 – mV/°C
Coefficient of Output
Voltage
Note 1. The maximum steady state usable output current and input voltage are very dependent on
the heat sinking and/or lead length of the package. The data above represents pulse test
conditions with junction temperatures as indicated at the initiation of the tests.
Note 2. Power Dissipation ≤ 0.75W.
.210
(5.33)
Max
.500
(12.7)
Min
.100 (2.54)
.105 (2.67) Max
.205 (5.2) Max
V
OUT
GND
V
IN
.050 (1.27)
.135 (3.45) Min
Seating Plane
.021 (.445) Dia Max
.165
(4.2)
Max
.105 (2.67) Max
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