3.3 - 117
3.3
4 11 R1
Supersedes 1 07 R0
OM3914STM
OM3914NTM
Three Terminal, Negative Adjustable
Voltage Regulator In Hermetic
JEDEC TO-257AA Package
3 AMP NEGATIVE ADJUSTABLE REGULATOR APPROVED
TO DESC DRAWING 5962-87741
FEATURES
Similar To Industry Standard LT1033
Approved To DESC Standardized Military Drawing Number 5962-8774101
Adjustable Output Voltage
Built In Thermal Overload Protection
Short Circuit Current Limiting
Available In Isolated Package
Maximum Output Voltage Tolerance is Guaranteed To ±1%
Guaranteed Dropout Voltage At Multiple Current Levels
Product Also Available in Non-Isolated Package
DESCRIPTION
This three terminal negative adjustable voltage regulator is designed to provide 3A
with higher efficiency than conventional voltage regulators. This device is designed
to operate down to 1 volt input to output differential and the dropout voltage is fully
specified as a function of load current. Supplied in easy-to-use hermetic TO-257
package, this device is ideally suited for Military applications where small size and
high reliability is required.
ABSOLUTE MAXIMUM RATINGS @ 25°C
Power Dissipation (P
d
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited
Input - Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 V
Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . - 55°C to + 150°C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65°C to + 150°C
Lead Temperature (Soldering 10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300°C
Thermal Resistance:
q
JC
(Isolated) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5°C/W
q
JC
(Non-Isolated) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2°C/W