CM431A
L
OW
V
OLTAGE
A
DJUSTABLE
S
HUNT
R
EGULATOR
ABSOLUTE MAXIMUM RATINGS
Cathode to Anode Voltage (V
KA
) (Note 2)
Continuous Cathode Current (I
K
)
Reference Input Current (I
REF
)
Maximum junction temperature range, T
J
Storage temperature range
Lead temperature (soldiering, 10 seconds)
Note 1:
Note 2:
Currents are positive into, negative out of the specified terminal.
Voltage values are with respect to the anode terminal unless otherwise noted.
-0.3V to 18V
-100mA to 150mA
-50uA to 10mA
150
O
C
-65
O
C to 150
O
C
260
O
C
Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground.
POWER DISSIPATION TABLE
Package
SOP-8
TO-92
SOT-89
θ
JA
O
( C/W )
165
156
71(note)
Derating factor ( mW/
O
C )
T
A
≧25
O
C
6.06
6.41
14.1
T
A
≦25
O
C
Power rating(mW)
757
801
1763
T
A
=70
O
C
Power rating(mW)
485
513
1128
T
A
= 85
O
C
Power rating (mW)
394
417
916
228
T
A
= 105
O
C
Power rating (mW)
272
288
635
158
SOT-23
285
3.5
438
280
Note :
1. For SOT-89 package, Thermal Resistance-Junction to Tab (
θ
JT
) = 35
O
C/W. T
J
= T
TAB
+ (P
D
x
θ
JT
)
2.
θ
JA
:
Thermal Resistance-Junction to Ambient
Junction Temperature Calculation: T
J
= T
A
+ (P
D
x
θ
JA
).
The
θ
JA
numbers are guidelines for the thermal performance of the device/PC-board system.
All of the above assume no ambient airflow.
RECOMMENDED OPERATING CONDITIONS
Min
Operating free air temperature range, T
A
Cathode current, I
K
Cathode voltage, V
KA
0
1
0
Max
105
100
16
Units
O
C
mA
V
2006/10/11 Rev1.2
Champion Microelectronic Corporation
Page 4
CHAMP [ CHAMPION MICROELECTRONIC CORP. ]
