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Similar To Industry Standard LM117A
Approved To DESC Standardized Military Drawing Number 7703405
Built In Thermal Overload Protection
Short Circuit Current Limiting
Available In Six Package Styles
Maximum Output Voltage Tolerance Is Guaranteed to + 1%
DESCRIPTION
These three terminal positive regulators are supplied in hermetically sealed
packages. All protective features are designed into the circuit, including thermal
shutdown, current-limiting, and safe-area control. With heat sinking, these devices
can deliver up to 1.5 amps of output current. The LCC-20 device is limited to .5
amps. The unit also features output voltages that can be fixed from 1.2 volts to 37
volts using external resistors.
ABSOLUTE MAXIMUM RATINGS
T
c
@ 25掳C
Power Dissipation
Case 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 W
Case-All Others. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 W
Input - Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 V
Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . - 55掳C to + 150掳C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65掳C to + 150掳C
Lead Temperature (Soldering 10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . 300掳C
Thermal Resistance, Junction to Case:
Case 2, LCC-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17掳C/W
Case U & M, TO-257 (Isol) and SMD-3 . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2掳C/W
Case T&N, TO-257 (Non-Isol) and SMD-1 . . . . . . . . . . . . . . . . . . . . . . . 3.5掳C/W
Case Y, TO-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0掳C/W
Maximum Output Current:
Case 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 A
Case-All Others. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5A
Recommended Operating Conditions:
Output Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.2 to 37 VDC
Ambient Operating Temperature Range (T
A
). . . . . . . . . . . . . . . . - 55掳C to + 125掳C
Input Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.25 to 41.25 VDC
4 11 R2
Supersedes 1 07 R1
3.5
3.5 - 17
1
2
3
4
