Voltage Regulator. NTE1923 Datasheet

NTE1923 Regulator. Datasheet pdf. Equivalent

Part NTE1923
Description 3 Terminal Negative Voltage Regulator
Feature NTE1923 3 Terminal Negative Voltage Regulator –18V, 1.5A Description: The NTE1923 is a negative 3–te.
Manufacture NTE
Datasheet
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NTE1923
NTE1923
3 Terminal Negative Voltage Regulator
–18V, 1.5A
Description:
The NTE1923 is a negative 3–terminal voltage regulator in a TO3 type package suitable for numerous
applications including local, on–card regulation requiring up to 1.5A. This device features thermal
shutdown and current limiting making the NTE1920 remarkably rugged.
Although designed primarily as a fixed voltage regulator, this device can be used with external compo-
nents to obtain adjustable voltages and currents.
Features:
D Internal Thermal Overload Protection
D Output Transistor Safe Area Protection
D Internal Short Circuit Current Limit
D No External Components Required
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Input Voltage , VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –35V
Internal Power Dissipation (TA = +25°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited
Derate Above 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22.2mW/°C
Internal Power Dissipation (TC = +25°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited
Derate Above 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182mW/°C
Operating Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +150°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C
Thermal Resistance, Junction–to–Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5°C/W
Thermal Resistance, Junction–to–Ambient, RthJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45°C/W
Electrical Characteristics: (0° ≤ TJ +125°C, VIN = –27V, IO = 0.5Aunless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Output Voltage
Line Regulation
Load Regulation
VO
Regline
Regload
TJ = +25°C
5mA IO 1A, –33V VIN –21V, PO 15W
TJ = +25°C, –33V VIN –21V, Note 1
TJ = +25°C, –30V VIN –24V, Note 1
TJ = +25°C, 5mA IO 1.5A, Note 1
TJ = +25°C, 250mA IO 750mA, Note 1
–17.3 –18.0 –18.7
–17.1 –18.0 –18.9
– 90 360
– 50 180
– 110 360
– 55 180
V
V
mV
mV
mV
mV
Note 1. Load and line regulation are specified at constant junction temperature. Change in VO due
to heating effects must be taken into account separately. Pulse testing with low duty cycle is
used.



NTE1923
Electrical Characteristics (Contd): (0° ≤ TJ +125°C, VIN = 27V, IO = 0.5Aunless otherwise
specified)
Parameter
Input Bias Current
Input Bias Current Change
Output Noise Voltage
Ripple Rejection Ratio
Dropout Voltage
Peak Output Current
Average Temperature
Coefficient of Output
Voltage
Symbol
Test Conditions
IB
IB
Vn
RR
IOmax
TJ = +25°C
33V VIN 21V
5mA IO 1.5A
TA = +25°C, f = 10Hz to 100kHz
IO = 20mA, f = 120Hz
TJ = +25°C, IO = 1A
TJ = +25°C
IO = 5mA
Min Typ Max Unit
4.5 8.0 mA
– – 1.0 mA
– – 0.5 mA
110
µV
59
dB
2.0
V
1.3 2.5 3.3 A
– –1.0 mV/°C
Note 2. Load and line regulation are specified at constant junction temperature. Change in VO due
to heating effects must be taken into account separately. Pulse testing with low duty cycle is
used.
.350 (8.89)
.135 (3.45) Max
.875 (22.2)
Dia Max
Seating Plane
.312 (7.93) Min
VOUT
.215 (5.45)
.430
(10.92)
.040 (1.02)
1.187 (30.16)
.665
(16.9)
.156 (3.96) Dia
(2 Holes)
.188 (4.8) R Max
GND
.525 (13.35) R Max
VIN/Case







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