oltag
POS Adj Volta ge
PRELIMINARY SPECIFICATION
gulator
Re gulator
Austin Semiconductor, Inc.
ABSOLUTE MAXIMUM RATINGS(note
1
)
AS117 RAD-TOL
*Stresses greater than those listed under "Absolute Maximum
Operating Temperature Range ....................... -55C < Ta < +125C Ratings" may cause permanent damage to the device. This is
Maximum Junction Temperature ......................................... +150C a stress rating only and functional operation of the device at
Storage Temperature Range ........................... -65C < Ta < +150C these or any other conditions above those indicated in the
Lead Temperature (soldering for 10 sec) ............................ 300C operation section of this specification is not implied. Exposure
to absolute maximum rating conditions for extended periods
Input to Output Voltage Differential ............................+40V, -0.3V may affect reliability.
Power Dissipation ........................................... Internally Limited
Output Short Circuit Duration..................................................10 sec
Lead Temperature (Soldering, 10 sec).......................................300°C
Thermal Resistance:
Theta JA TO-03 Metal Can .........still air............186C/W
.......500LF/min air flow...... 64C/W
Theta JA 16Lead Gullwing ....still air............... 115C/W
.......500LF/min air flow....... 66C/W
Theta JC TO-03 Metal Can .....still air.............. 21C/W
Theta JC 16Lead Gullwing .....still air............... 3.4C/W
-(see note 3)
Package Weight:
16 Lead Cerpack Gullwing ................................ 380mg
3 Lead Metal Can ............................................... 950mg
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating ratings indicate conditions for
which the device is functional , but do not guarantee specific performance limits. For guaranteed Specs & Test conditions, see Electrical
Characteristics section.
Note 2:
The maximum power dissipation must be derated at elevated temperatures and is dictated by Tjmax(max Junction temp), ThetaJA
(package junction to ambient thermal resistance), and TA(ambient temp). The maximum allowable power dissipation at any temperature is
Pdmax (Tjmax - TA)/ThetaJA or the number given in the Absolute Maximum Rating, whichever is lower.
Note 3:
For the Ceramic 16lead gullwing, device to function properly, the “OUTPUT” and “OUTPUT/SENSE” pins must be connected on the
users printed circuit board.
(The following Table applies to the Subgroup column in the Electrical Characteristics Tables)
SUBGROUP
1
2
3
4
5
6
7
8A
8B
Description
Static DC tests
Static DC tests
Static DC tests
Dynamic Tests
Dynamic Tests
Dynamic Tests
Functional Tests
Functional Tests
Functional Tests
TEMP(
O
C)
+25
+125
-55
+25
+125
-55
+25
+125
-55
-55C < TA < 125c
4.25V to 41.25V
RECOMMENDED OPERATING CONDITIONS:
OPERATING TEMPERATURE Range
INPUT VOLTAGE RANGE
AS117 RAD-TOL
Rev. 1.1 06/05
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
4
AUSTIN [ AUSTIN SEMICONDUCTOR ]
