Voltage Regulator. NTE1940 Datasheet

NTE1940 Regulator. Datasheet pdf. Equivalent

Part NTE1940
Description Integrated Circuit Positive Voltage Regulator
Feature NTE1940 Integrated Circuit Positive Voltage Regulator, 24V, 2A Features: D 3 Pin Plastic Package TO3.
Manufacture NTE
Datasheet
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NTE1940
NTE1940
Integrated Circuit
Positive Voltage Regulator,
24V, 2A
Features:
D 3 Pin Plastic Package TO3P
D Only Output Capacitor is Externally Required
D Precise Setting Voltage of ±2%
D Wide Input Voltage Range (45V)
D Built–in Current Foldback Protection
D Ideal Combination of Passivated Power Transistor and High Reliability Flip–Chip Circuit
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
DC Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45V
Power Dissipation, PC (TC =+ 25°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50W
(No Fin) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2W
Thermal Resistance, Junction–to–Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2°C/W
Junction Temperature Range, Tj . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30° to +125°C
Operating Ambient Temperature Range, Top . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +80°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30° to +125°C
Electrical Characteristics: (TA = +25°C unless otherwise specified)
Parameter
Symbol
Test Conditions
DC Input Voltage
Output Voltage
Output Current
Line Regulation
Load Regulation
Temperature Coefficient
Ripple Rejection
Foldback Current
Short–Circuit Current
VIN
VO
IO
VLINE
VLOAD
Kt
IS1
IS2
IO = 2A
VIN = 33V, IO = 0.5A
VIN = 28V to 38V, IO = 0.5A
VIN = 33V, IO = 0 to 2A
100 to 120HZ
Min Typ Max Unit
27 – 40 V
23.8 24.0 24.2 V
0–2 A
– 20 50 mV
– 120 300 mV
±2.5 – mV/°C
– 60 – dB
2.4 – – A
– – 0.6 A



NTE1940
VIN
DC Input
External Circuit
D1
21
+
3 C1 VO
DC Output
Note 1. Output capacitor C1 (47 to 100µf) shall be connected directly to output terminal (Pin1)
and GND terminal (PIn3) as shown above.
Note 2. When wiring between the regulator and the load is long, another capacitor (47 to 100µf)
shall be added in parallel with the load.
Note 3. If there is a possibility of reverse biasing between input and output, a protection diode
(D1) is to be added. The recommended diode for D1 is NTE116.
.190 (4.82)
.787
(20.0)
.615 (15.62)
VIN
.591
(15.02)
.126 (3.22)
Dia
.787
(20.0)
VO VIN
GND
.215 (5.47)







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