OMNIREL OM7671NM, OM7671ST, OM7671SM, OM7670ST, OM7670SM Datasheet
...
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 temperature operation and positive and negative transient voltage spikes. They are available in a
number of hermetic package styles where critical environmental systems demand high performance.
+3.3 Volt, Low Dropout Positive Regulators
in Hermetic Packages
1.5 AMP AND 3 AMP LOW DROPOUT
3.3 VOLTAGE POSITIVE REGULATOR
OM7670 Series
OM7671 Series
1 11 R2
Supersedes 9 01 R1
Please see mechanical
outlines herein
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 1.5 TO-204AA
OM7671NK 3.0 TO-204AA
OM7670NM 1.3 Surface Mount - SMD1
OM7671NM 2.6 Surface Mount - SMD1
OM7670SM 1.3 Surface Mount - SMD3
OM7671SM 2.6 Surface Mount - SMD3
OM7670ST 1.3 TO-257AA Isolated Tab
OM7671ST 2.6 TO-257AA Isolated Tab
OM7670N2 .75 LCC-28
THERMAL RESISTANCE MAX POWER - WATTS
Package Style Junction to Case OM7670 Series OM7671 Series
LCC-28 20°C/Watt 5 ----
TO-257AA, SMD-1 and SMD-3 4.2°C/Watt 13 26
TO-204AA (TO-3) 3.0°C/Watt 15 30
Table 1
3.3
OM7670 Series
OM7671 Series
ELECTRICAL CHARACTERISTICS -55°C ≤ T
A
≤ 125°C (unless otherwise specified)
Parameter Symbol Test Conditions Min. Max. Unit
Output Voltage V
OUT
VIN= 5.0 V, I
OUT
= 10 mA 3.267 3.333 V
T
A
= 25° C
4.75 V ≤ V
IN
≤ 18 V, • 3.325 3.365 V
10 mA ≤ I
OUT
≤ I
LMIN
Line Regulation ∆V
OUT
4.5V ≤ VIN≤ 18 V,
• 12 mV
(Note 1) ∆V
IN
I
OUT
= 0 A
Load Regulation ∆V
OUT
VIN= 5.0 V, 0A ≤ I
OUT
≤ I
LMIN
15 mV
(Note 1) ∆I
OUT
TA= 25° C
V
IN
= 5.0 V, 0A ≤ I
OUT
≤ I
LMIN
• 25 mV
Dropout Voltage V
DO
I
OUT
= I
LMIN
, ∆V
REF
= 1% • 1.5 V
Thermal Regulation - 30 ms pulse, T
A
= +25° C 0.04 %/W
Ripple Rejection ∆V
IN
f = 120 Hz, C
Adj
= 25 µF, • 60 dB
∆V
OUT
C
OUT
= 25 µF (tantalum), I
OUT
= I
LMIN
,
V
IN
= 6.3 V
Quiescent Current I
Q
VIN= 18 V • 10 mA
Current Limit I
L
OM7670NK, V
IN
= 18 V • 1.5 3.5
OM7670NM/ST/SM V
IN
= 18 V • 1.3 2.5
OM7670N2, V
IN
= 18 V • .75 1.50 A
OM7671NK, V
IN
= 18 V • 3.0 5.0
OM7671NM/ST/SM, V
IN
= 18 V • 2.6 4.5
V
IN
= 28 V, All Types • .050 -- A
Temperature Stability ∆V
OUT
-55° C ≤ TJ≤ +125° C 1.55 %
(Note 2) ∆T
Long Term Stability ∆V
OUT
TA= +125° C, t = 1000 hrs 1.0 %
(Note 2) ∆T
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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