The NTE957 is an adjustable 3鈥搕erminal negative voltage regulator in a TO220 type package capable
of supplying in excess of 鈥?.5A over a 鈥?.2V to 鈥?7V output range. The circuit design has been optimized
for excellent regulation and low thermal transients. Further, the NTE957 features internal current limiting,
thermal shutdown, and safe鈥揳rea compensation, making this device virtually blowout鈥損roof against
overloads.
The NTE957 serves a wide variety of applications including local on鈥揷ard regulation, programmable鈥?/div>
output voltage regulation or precision current regulation. The NTE957 is the ideal complement to the
NTE956 adjustable positive regulator.
Features:
D
Output Voltage Adjustable from 鈥?.2V to 鈥?7V
D
Guaranteed 1.5A Output Current
D
Line Regulation Typically 0.01%/V
D
Load Regulation Typically 0.3%
D
Excellent Thermal Regulation: 0.002%/W
D
77dB Ripple Rejection
D
Temperature鈥揑ndependent Current Limit
D
Internal Thermal Overload Protection
D
100% Electrical Burn鈥揑n
D
Eliminates the Need to Stock Many Voltages
Absolute Maximum Ratings:
Power Dissipation, P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited
Input鈥揙utput Voltage Differential, V
I
鈥揤
O
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V
Operating Junction Temperature Range, T
J
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0擄 to +125擄C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?5擄 to +150擄C
Typical Thermal Resistance, Junction鈥搕o鈥揅ase, R
thJC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4擄C/W
Lead Temperature (During Soldering, 10sec), T
L
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300擄C
1
2
