OM7670 Series
OM7671 Series
1.5 AMP AND 3 AMP LOW DROPOUT
3.3 VOLTAGE POSITIVE REGULATOR
+3.3 Volt, Low Dropout Positive Regulators
in Hermetic Packages
Please see mechanical
outlines herein
FEATURES
• Low Dropout Voltage and Ground Currents
• High Current Capability
• Built-In Thermal Overload Protection
• Short Circuit Current Limiting
• Output Voltage Tolerance Guaranteed to + 1%
• Available in Multiple Hermetic Package Styles
• Output Current from .75A to 3.0A
DESCRIPTION
This series of +3.3 Voltage Regulators are high current, high accuracy, low dropout regulators
and well suited for systems where extremely low dropout voltages is critical. They feature full
protection against overcurrent faults, reversed input polarity, reversed lead insertion, over tem-
perature operation and positive and negative transient voltage spikes. They are available in a
number of hermetic package styles where critical environmental systems demand high per-
formance.
ABSOLUTE MAXIMUM RATINGS @ 25°C
. . . .
Operating Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30 Volts
Output Current - Package Dependent. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .See Below
. .
. . . .
. . . .
°C
°C
°C
°C
Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead Temperature, Soldering for 10 seconds
-55 to + 125
-65 to + 150
. . .
. . . . . . . . . . . . . . . . . . . . . . . . . .
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
300
+ 150
ORDERING INFORMATION - OM7670/71 SERIES
PART NUMBER
OUTPUT CURRENT (AMP)
PACKAGE
OM7670NK
OM7671NK
OM7670NM
OM7671NM
OM7670SM
OM7671SM
OM7670ST
OM7671ST
OM7670N2
1.5
3.0
1.3
2.6
1.3
2.6
1.3
2.6
.75
TO-204AA
TO-204AA
Surface Mount - SMD1
Surface Mount - SMD1
Surface Mount - SMD3
Surface Mount - SMD3
TO-257AA Isolated Tab
TO-257AA Isolated Tab
LCC-28
THERMAL RESISTANCE
MAX POWER - WATTS
Package Style
Junction to Case
OM7670 Series OM7671 Series
LCC-28
20°C/Watt
5
----
26
30
TO-257AA, SMD-1 and SMD-3
TO-204AA (TO-3)
4.2°C/Watt
3.0°C/Watt
13
15
Table 1
1 11 R2
Supersedes 9 01 R1