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POSITIVE REGULATOR. OM7671 Datasheet |
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1.5 AMP AND 3 AMP LOW DROPOUT
3.3 VOLTAGE POSITIVE REGULATOR
OM7670 Series
OM7671 Series
Please see mechanical
outlines herein
+3.3 Volt, Low Dropout Positive Regulators
in Hermetic Packages
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
Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-55 to + 125 °C
Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-65 to + 150 °C
Lead Temperature, Soldering for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . + 150 °C
ORDERING INFORMATION - OM7670/71 SERIES
PART NUMBER
OUTPUT CURRENT (AMP)
PACKAGE
OM7670NK
OM7671NK
OM7670NM
OM7671NM
OM7670SM
OM7671SM
OM7670ST
OM7671ST
OM7670N2
1.5 TO-204AA
3.0 TO-204AA
1.3 Surface Mount - SMD1
2.6 Surface Mount - SMD1
1.3 Surface Mount - SMD3
2.6 Surface Mount - SMD3
1.3 TO-257AA Isolated Tab
2.6 TO-257AA Isolated Tab
.75 LCC-28
THERMAL RESISTANCE
Package Style
Junction to Case
LCC-28
20°C/Watt
TO-257AA, SMD-1 and SMD-3
4.2°C/Watt
TO-204AA (TO-3)
3.0°C/Watt
1 11 R2
Supersedes 9 01 R1
Table 1
MAX POWER - WATTS
OM7670 Series OM7671 Series
5 ----
13 26
15 30
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OM7670 Series
OM7671 Series
3.3
ELECTRICAL CHARACTERISTICS -55°C ≤ TA ≤ 125°C (unless otherwise specified)
Parameter
Symbol
Test Conditions
Min. Max.
Output Voltage
Line Regulation
(Note 1)
Load Regulation
(Note 1)
Dropout Voltage
Thermal Regulation
Ripple Rejection
Quiescent Current
Current Limit
Temperature Stability
(Note 2)
VOUT
∆VOUT
∆VIN
∆VOUT
∆IOUT
VDO
-
∆VIN
∆VOUT
IQ
IL
∆VOUT
∆T
VIN = 5.0 V, IOUT = 10 mA
TA = 25° C
4.75 V ≤ VIN ≤ 18 V,
10 mA ≤ IOUT ≤ ILMIN
4.5V ≤ VIN ≤ 18 V,
IOUT = 0 A
VIN = 5.0 V, 0A ≤ IOUT ≤ ILMIN
TA = 25° C
VIN = 5.0 V, 0A ≤ IOUT ≤ ILMIN
IOUT = ILMIN, ∆VREF = 1%
30 ms pulse, TA = +25° C
f = 120 Hz, CAdj = 25 µF,
COUT = 25 µF (tantalum), IOUT = ILMIN,
VIN = 6.3 V
VIN = 18 V
OM7670NK, VIN = 18 V
OM7670NM/ST/SM VIN = 18 V
OM7670N2, VIN = 18 V
OM7671NK, VIN = 18 V
OM7671NM/ST/SM, VIN = 18 V
VIN = 28 V, All Types
-55° C ≤ TJ ≤ +125° C
•
•
•
•
•
•
•
•
•
•
•
•
3.267
3.325
60
1.5
1.3
.75
3.0
2.6
.050
3.333
3.365
12
15
25
1.5
0.04
10
3.5
2.5
1.50
5.0
4.5
--
1.55
Long Term Stability
(Note 2)
∆VOUT
∆T
TA = +125° C, t = 1000 hrs
1.0
Unit
V
V
mV
mV
mV
V
%/W
dB
mA
A
A
%
%
Notes:
1. Line and Load Regulation are measured at a constant junction temperature using a low duty cycle pulse technique.
Although power dissipation is internally limited, regulation is guaranteed up to the maximum power dissipation of 15W
for the OM7670 series and 30 watts for the OM7671 series (See Table 1). Power dissipation is determined by the
input/output differential voltage and the output current. Guaranteed maximum power dissipation will not be available over
the full input/output voltage range.
2. Guaranteed by design, characterization or correlation to other tested parameters.
3. The • denotes the specifications which apply over the full operating temperature range.
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MECHANICAL OUTLINES
OM7670 Series
OM7671 Series
.075
.157
.140
1
.140
2
.075
.030
MIN.
.415 3
.062 .375
OM7670NBMOT/TOOMMVI7EW671NM
Pin Out
Pin 1
Vin
Pin 2
Ground
Pin 3
Vout
.425
.200
.100
1
3
2
.425
.035 WIDE
FLAT 3 PLCS.
.350 MIN.
± .020
.115
.160
.020 .080
OM7670SM/OM7671SM
Pin Out
Pin 1
Pin 2
Pin 3
Ground
Vin
Vout
.420
.410
.665
.150 .645
.140 .537
.527
12 3
.750
.500
.035 .100 TYP.
.025
OM7670ST/OM7671ST
Pin Out
Pin 1
Ground
Pin 2
Vout
Pin 3
Vin
.450
SQ.
.02 x 45°
PIN 1
PIN 28
.090
MAX.
.035
4
1
.300
4 PLCS.
.050
24 PLCS
12
.305
SQ.
26 18
TOP .05 X 45°
SIDE .009 R. BOTTOM
MAX. 3 PLCS.
28 PLCS.
OM7670N2
0.135
MAX.
SEATING
PLANE
Pin 1 Input
Pin 2 Adjust
Pin 3 Adjust
Pin 4 Output
Pin 5 Output
Pin 6 Output
Pin 7 Output
Pin 8 Output
Pin 9 Output
Pin 10 Output
Pin 11
Pin 12
Pin 13
Pin 14
Pin 15
Pin 16
Pin 17
Pin 18
Pin 19
Pin 20
Output
Output
Adjust
Adjust
Input
Input
Input
Input
Input
Input
Pin 21
Pin 22
Pin 23
Pin 24
Pin 25
Pin 26
Pin 27
Pin 28
Input
Input
Input
Input
Input
Input
Input
Input
1.53
REF.
0.875
MAX.
0.043
0.038
2 PLCS.
1.197
1.177
0.188 R.
MAX.
0.675
0.655
0.440
0.420
0.450
0.250
0.312
MIN.
0.225
0.205
0.161
0.151
0.525 R.
MAX.
OM7670NK/OM7671NK
Pin 1 -
Pin 2 -
Case -
Input
Output
Adjust
For more information on any of these mechanical outlines, please visit our web site at:
www.omnirel.com
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