NTE NTE7128

NTE7128
Integrated Circuit
Positive Voltage Regulator
with ON/OFF Feature, 12V, 1A
Description:
The NTE7128 is a 1A low power–loss voltage regulator in a 4–Lead TO220 type package designed
for use in constant voltage power applications in electronic equipment such as VCRs and musical
instruments.
Features:
D Low Power Loss
D Includes ON/OFF Control Terminal
D Precision Output Voltage: ±2.5%
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Input Voltage (Note 1), VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35V
ON/OFF Control Terminal Voltage, VC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35V
Output Current, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1A
Power Dissipation, PD
No Heat Sink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5W
With Infinite Heat Sink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15W
Junction Temperature (Note 2), TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +80°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C
Lead Temperature (During Soldering, 10sec), TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +260°C
Note 1. All are open except GND and applicable terminals.
Note 2. Overheat protection operates at TJ ≤ +125°C.
Electrical Characteristics: (VIN = 18V, IO = 0.5A, TA = +25°C unless otherwise specified)
Parameter
Symbol
Output Voltage
Test Conditions
VO
Min
Typ
Max
Unit
11.7
12.0
12.3
V
Load Regulation
RegL
IO = 5mA to 1A
–
0.1
2.0
%
Line Regulation
RegI
VIN = 13V to 29V
–
0.5
2.5
%
Temperature Coefficient of Output Voltage
TCVO
TJ = 0 to +125°C
–
±0.02
–
%/°C
45
55
–
dB
Ripple Rejection
RR
Dropout Voltage
VI–O
Note 3
–
–
0.5
V
ON–State Voltage for Control
VC(on)
Note 4
2.0
–
–
V
On–State Current for Control
IC(on)
VC = 2.7V
–
–
20
µA
OFF–State Voltage for Control
VC(off)
–
–
0.8
V
OFF–State Current for Control
IC(off)
VC = 0.4V
–
–
–0.4
mA
IO = 0
–
–
10
mA
Quiescent Current
IQ
Note 3. Input voltage shall be the value when output voltage is 95% in comparison with the initial value.
Note 4. In case of opening control terminal, output voltage turns on.
.177 (4.5)
.400 (10.2)
Max
.110 (2.8)
.142
(3.6)
.615
(15.6)
Max
.126
(3.2)
Dia
1
2
3
4
.532
(13.5)
Min
.100 (2.54)
Pin 1. VIN
2. VOUT
3. GND
4. ON/OFF Control