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Similar To Industry Standard LT1085
Approved To DESC Standardized Military Drawing Number 5962-88646
Adjustable Output Voltage
Built In Thermal Overload Protection
Short Circuit Current Limiting
Maximum Output Voltage Tolerance is Guaranteed To 鹵1%
Guaranteed Dropout Voltage At Multiple Current Levels
DESCRIPTION
This three terminal positive adjustable voltage regulator is designed to provide 3.0A with
higher efficiency than conventional voltage regulators. This device is designed to
operate to 1 Volt input to output differential and the dropout voltage is specified as a
function of load current. Supplied in easy-to-use hermetic TO-257, SMD-1 or TO-3
packages, this device is ideally suited for Military applications where small size and high
reliability is required.
ABSOLUTE MAXIMUM RATINGS
@ 25擄C
Power Dissipation (P
d
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited
Input - Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 V
Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . - 55擄C to + 150擄C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65擄C to + 150擄C
Lead Temperature (Soldering 10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300擄C
Thermal Resistance:
胃
JC
(SMD-1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5擄C/W
胃
JA
(SMD-1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5擄C/W
胃
JC
(TO-257) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2擄C/W
胃
JA
(TO-257). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42擄C/W
胃
JC
(TO-3). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0擄C/W
胃
JA
(TO-3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35擄C/W
Maximum Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0 A
Recommended Operating Conditions:
Output Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.3V to 15 V
Ambient Operating Temperature Range (T
A
). . . . . . . . . . . . . . . . . . . - 55擄C to + 125擄C
Input Voltage Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V to 25 V
a
1 08 R4
Supersedes 0 03 R3
3.3 - 79
3.3
1
2
3
4
