NTE7090
Variable Output Voltage Regulator
(Dual Tracking Type)
Description:
The NTE7090 is a dual tracking, variable output voltage regulator housed in a 8鈥損in SIP.
The output voltage can be adjusted over a wide range from
鹵3
to
鹵30V
by adjusting the value of the
voltage setting external resistors. By adjusting the resistance of the external balance setting resistors
the positive/negative output voltage ratio can also be set freely. Again by attaching power transistors
high current gains can be achieved making the device suitable for use in the power supplies of a wide
variety of equipment.
Features:
D
High Input voltage . . . . . . . . . . . . . . . . . . . . . . V
I
=
鹵35V
D
Wide Range of Output Voltage . . . . V
O
=
鹵3
to
鹵30V
D
Low output noise voltage . . . . . . V
NO
= 12碌V
rms
(typ)
D
Built鈥搃n current limiting and thermal shutdown circuit
D
The output voltage rise time constant of the coefficients can be adjusted by the value of the
external capacitor.
D
Capability of operation control by the external control signal (Pin 8).
Application:
Dual voltage power supplies for stereo preamplifiers, for the power supplies of other equipment, in-
cluding operational amplifiers.
Recommended Operating Conditions:
Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
鹵8
to
鹵35V
Rated Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
鹵20V
Absolute Maximum Ratings:
(T
A
= +25擄C unless otherwise specified)
Input Voltage, V
I
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
鹵35V
Load Current, I
L
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
鹵30mA
Input鈥揙utput Voltage Difference, V
I
鈥揤
O
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
鹵32V
Power Dissipation, P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 800mW
Operating Ambient Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +75擄C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?6擄 to +125擄C
1
2
