PD-94477A
1 M Rad(Si) Ultra Low Dropout
Linear Regulator
Hermetic Package
Product Summary
Part Number
OMR9603SC
OMR9603SF
Dropout
0.4 V
0.4 V
I
O
3.0A
3.0A
Vin
7.4V
7.4V
Vout
6.8V
6.8V
OMR9603SC
OMR9603SF
+ 7.4Vin to +6.8Vout at 3.0A
Package
MO-078AA
8-pin Flatpack
MO-078AA
Features:
The OMR9603 is a radiation hardened, ultra low dropout
linear regulator designed specifically for space applica-
tions. This product has been characterized to a total ioniz-
ing dose of 1 M Rad (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 re-
quiring low noise and higher efficiency.
n
Total dose and low dose capabilitiy to 1M
n
n
n
n
n
Rad(Si) allows use in space applications
Ultra low dropout of 0.4 volt significantly
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
P
TOT
RTHJC
R
THJC
TJ
TSTG
T
L
Parameter
Output Current
Input Voltage
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
+8.0
19
6.5
6.5
-55 to +125
-65 to +150
300
Units
A
V
W
擄C/W
擄C/W
o
C
o
C
o
C
www.irf.com
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8/20/02
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