
Microsemi
Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 2
Copyright
2000
Rev. 1.2c, 2001-04-11
W
M
.
LX432
Low Voltage Adjustable Precision Shunt
Regulator
P
RODUCTION
D
ATA
S
HEET
A M I C R O S E M I C O M P A N Y
Cathode to Anode Voltage (V
KA
) .................................................................-0.3V to +20V
Reference Input Current (I
REF
).....................................................................-50μA to 10μA
Continuous Cathode Current (I
K
)............................................................... -25mA to 25mA
Operating Junction Temperature ...............................................................................150°C
Storage Temperature....................................................................................-65oC to 150°C
Lead Temperature......................................................................................................300°C
Note 1:
Exceeding these ratings could cause damage to the device. All voltages are with respect to
Ground. Currents are positive into, negative out of specified terminal.
SC
3-Pin Plastic Package
(PC Mounted)
220°C/W
Thermal Resistance – Junction to Ambient,
θ
JA
(Non-PC Mounted) 410°C/W
SE
5-Pin Plastic Package
(PC Mounted)
220°C/W
Thermal Resistance – Junction to Ambient,
θ
JA
(Non-PC Mounted) 410°C/W
LP
3-Pin Plastic Package
Thermal Resistance – Junction to Ambient,
θ
JA
156°C/W
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.
ANODE
REF
CATHODE
1
2
3
SC P
ACKAGE
– 3-P
IN
ANODE
REF
N.C.
CATHODE
N.C.
1
2
3
4
5
N.C. - No Internal Connection
SE P
ACKAGE
– 5-P
IN
3. C
ATHODE
2. A
NODE
1. R
EF
LP P
ACKAGE
– 3-P
IN
(All Views Top View)
+
-
V
REF
Ref(R)
Anode(A)
Cathode (K)
Figure 1
– Simplified Block Diagram
P
A
C
K
A
G
E
D
A
T
A