NTE935
Integrated Circuit
3鈥揟erminal Adjustable Positive Voltage Regulator
1.2V to 32V, 5A
Description:
The NTE935 is an adjustable 3鈥搕erminal positive voltage regulator in a TO3 type package capable
of supplying in excess of 5A over a 1.2V to 32V output range. This device is exceptionally easy to
use.
A unique feature of the NTE935 is its time dependent current limiting. The current limit circuitry allows
peak currents of up to 12A to be drawn from the regulator for short periods of time.
Also included on the chip are thermal overload protection and safe area protection for the power transistor.
Overload protection remains functional even if the adjustment pin is accidently disconnected.
Normally, no capacitors are needed unless the device is situated far from the input filter capacitors
in which case an input bypass is needed. An optional output capacitor can be added to improve tran-
sient response. The adjustment terminal can be bypassed to achieve very high ripple rejections ratios
which are difficult to achieve with standard 3鈥搕erminal regulators.
Features:
D
Guaranteed 7A Peak Output Current
D
Guaranteed 5A Output Current
D
Adjustable Output Down to 1.2V
D
Line Regulation Typically 0.005%/V
D
Load Regulation Typically 0.1%
D
Guaranteed Thermal Regulation
D
Output is Short Circuit Protected
D
Current Limit Constant with Temperature
D
Standard 3鈥揕ead Transistor Package.
Absolute Maximum Ratings:
Power Dissipation, P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally limited
Input鈥揙utput Voltage Differential, V
I鈥揙
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35V
Operating Junction Temperature Range, T
J
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0擄 to +125擄C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?5擄 to +150擄C
Lead Temperature (During Soldering, 10 seconds), T
L
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300擄C
Thermal Resistance, Junction鈥搕o鈥揅ase, R
thJC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0擄C/W
Thermal Resistance, Junction鈥搕o鈥揂mbient, R
thJA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35擄C/W
1
2
