The NTE1953 positive voltage regulator features the ability to source 1A of output current with a drop-
out voltage of typically 0.5V and a maximum of 1V over the entire temperature range. Furthermore,
a quiescent current reduction circuit has been included which reduces the ground current when the
differential between the input voltage and the output voltage exceeds approximately 3V. The quies-
cent current with 1A of output current and an input鈥搊utput differential of 5V is therefore only 30mA.
鈮?/div>
3V).
Features:
D
Dropout Voltage: 0.5V (Typ) @ I
O
= 1A
D
Output Current in Excess of 1A
D
Reverse Battery Protection
D
Internal Short Circuit Current Limit
Absolute Maximum Ratings:
(T
A
= +25掳C unless otherwise specified)
Input Voltage, V
I
Survival Voltage (鈮?00ms) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60V
Operational Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26V
Internal Power Dissipation (Note 1), P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited
maximum Junction Temperature, T
J
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150掳C
Operating Temperature Range, T
A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0掳 to +125掳C
Storage Junction Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?5掳 to +150掳C
Lead Temperature (During Soldering, 10sec max), T
L
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +230掳C
Note 1. Thermal resistance without a heatsink for junction鈥搕o鈥揷ase temperature is 3掳C/W. Thermal
resistance case鈥搕o鈥揳mbient is 50掳C/W
1
2
