Power Management
A A
MICROELECTRONICS
GM431
2.5V ADJUSTABLE SHUNT REGULATOR
ABSOLUTE MAXIMUM RATINGS (over free-air temperature range except as noted)
PARAMETER
SYMBOL
Value
UNIT
(1)
V
Cathode Voltage
37
V
KA
I
K
Continuous cathode current range
-100 to 150
mA
mA
Reference input current range
I
ref
-50µA to 10mA
Power dissipation at T = 25°C
A
0.23
0.60
0.78
0.80
SOT-23
SOP-8
TO-92
P
D
W
SOT-89
(2, 3)
Package thermal impedance
336
132
163
132
SOT-23
TO-92
q
°C/W
JA
SOP-8
SOT-89
Operating ambient temperature range
T
A
0 to + 70
°C
°C
T
Lead temperature (soldering) 10 seconds
260
LEAD
These are stress ratings only. Functional operation of the device at these or any conditions beyond the "recommended
operating conditions" is not implied. Exposure to absolute maximum rated conditions may affect device reliability.
NOTES:
1. Voltage values are with respect to the anode except as noted.
2. Maximum power dissipation is a function of T
, q and T . Maximum allowable power dissipation at any allowable ambient temperature is
A
J(max) JA
P
= (T
- T )/ q .
J(max) A JA
D
3. Package thermal impedance is calculated per JESD 51.
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
MINIMUM
MAXIMUM
UNIT
Cathode Voltage
V
KA
V
36
V
ref
I
K
Cathode Current
1.0
100
mA
4