PD-94487A
200 Krad(Si) Ultra Low Dropout
Positive Adjustable Linear Regulator
Hermetic Package
Product Summary
Part Number
OMR9804SC
OMR9804SF
Dropout
0.4 V
0.4 V
I
O
3.0A
3.0A
Vin
Package
3.3V MO-078AA
3.3V 8-Lead Flatpack
OMR9804SF
OMR9804SC
+ 3.3Vin at 3.0A
MO-078AA
Features:
The OMR9804 is a radiation hardened, ultra low dropout
adjusable linear regulator designed specifically for space
applications. This product has been characterized to a
total ionizing dose of 200 Krad (Si) per MIL-STD-883,
Method 1019, Condition A at both high and low dose rates
under biased and unbiased conditions to account for
ELDRS effects in bipolar devices. The ultra low dropout
voltage of 0.4V @ 3A makes the part particularly useful for
applications requiring low noise and higher efficiency.
n
Total dose and low dose capabilitiy to 200
n
n
n
n
n
Krad(Si) allows use in space applications
Ultra low dropout voltage of 0.4 volt signifi
cantly reduces power consumption
Low noise, higher efficiency
Remote shutdown permits power
sequencing to be easily implemented
Hermetic MO-078AA (TO-258AA) and 8-
lead flat pack ensure higher reliability
K-level screened
Absolute Maximum Ratings
Symbol
Io
V in
Vout
P
TOT
RTHJC
R
THJC
TJ
TSTG
T
L
Parameter
Output Current
Input Voltage
Output Voltage Range
Power Dissipation TC=25
o
C
Thermal Resistance, Junction to Case (MO-078AA)
Thermal Resistance, Junction to Case (8 lead flatpack)
Operating Junction
Storage Temperature Range
Lead Temperature
Value
3.5
+7.0
+1.26 to +3.2
19
6.5
6.5
-55 to +125
-65 to +150
300
Units
A
V
V
W
擄C/W
擄C/W
o
o
C
C
o
C
www.irf.com
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8/20/02
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