NTE NTE1936 Datasheet
NTE1936
Integrated Circuit
Positive Voltage Regulator,
12V, 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, V
Power Dissipation, P
Thermal Resistance, Junction–to–Case, R
Junction Temperature Range, T
Operating Ambient Temperature Range, T
Storage Temperature Range, T
IN
=+ 25°C) 50W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C(TC
(No Fin) 2W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
thJC
j
op
stg
–30° to +125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–20° to +80°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–30° to +125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
45V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics:
Parameter
DC Input Voltage V
Output Voltage V
Output Current I
Line Regulation ∆V
Load Regulation ∆V
Temperature Coefficient K
(TA = +25°C unless otherwise specified)
Symbol Test Conditions Min Typ Max Unit
IN
O
O
LINE
LOADVIN
IO = 2A 15 – 35 V
VIN = 19V, IO = 0.5A 11.8 12.0 12.2 V
VIN = 16V to 22V, IO = 0.5A – 10 30 mV
= 19V, IO = 0 to 2A – 80 200 mV
t
Ripple Rejection 100 to 120H
Foldback Current I
Short–Circuit Current I
S1
S2
0 – 2 A
– ±1.5 – mV/°C
Z
– 60 – dB
2.4 – – A
– – 0.6 A
External Circuit
D
1
21
+
V
IN
DC Input
3
C
1
V
–
O
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
(D
) is to be added. The recommended diode for D1 is NTE116.
1
.787
(20.0)
.591
(15.02)
.787
(20.0)
.615 (15.62).190 (4.82)
V
IN
.126 (3.22)
Dia
V
V
O
IN
GND
.215 (5.47)
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