2
Date: 12/11/04 SPX432 1.24V Precision Adjustable Shunt Regulator © Copyright 2004 Sipex Corporation
ABSOLUTE MAXIMUM RATINGS
Cathode-Anode Reverse Breakdown V
KA
....................................... 20V
Anode-Cathode Forward Current, (<10ms) I
AK
................................. 1A
Operating Cathode Current I
KA
.................................................... 80mA
Reference Input Current I
REF
.......................................................... 1mA
Continuous Power Dissipation at 25°C P
D
TO-92 ..................................................................... 775mW
SOT-23 .................................................................. 200 mW
SOIC-8 .................................................................... 750mW
Junction Temperature T
J
...........................................................150 °C
Storage Temperature T
STG
.......................................... -65°C to 150 °C
Lead Temperature (Soldering 10 sec.) T
L
.................................. 300°C
Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only
and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not
implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
Electrical characteristics are guaranted over the full junction temperature range (0°C to 105°C). Ambient temperature must
be derated based upon power dissipation and package thermal characteristics. Unless otherwise specified, test conditions are:
V
KA
= V
REF
and I
K
= 10mA.
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
CIRCUIT
SPX432A SPX432
Output Voltage V
REF
3a 1.2338 1.240 1.2462 1.2276 1.240 1.2524 V
Temperature Deviation V
REF
3a 0 < T
J
< 105°C12201220mV
Line Regulation V
REF
3b V
KA
= 1.25V to 15V 19 37 19 37 mV
Load Regulation V
REF
3a I
K
= 1mA to 80mA 12 30 12 30 mV
Reference Input Current I
REF
3b 3 6 36µA
Reference Input Current I
REF
3b 0 < T
J
< 105°C, 0.3 0.6 0.3 0.6 µA
Temperature Coefficient
Minimim Cathode I
K(MIN)
3a 0.6 1 0.6 1 mA
Current for Regulation
Off State Leakage I
K(MIN)
3c V
REF
= 0V, 0.04 500 0.04 500 nA
V
KA
= 18V
RECOMMENDED CONDITIONS
PARAMETER SYMBOL RATING UNIT
Cathode Voltage V
KA
V
REF
to 18 V
Cathode Current I
K
10 mA
TYPICAL THERMAL RESISTANCES
PACKAGE 0
JA
0
JC
TYPICAL
DERATING
TO-92 160°C/W 80°C/W 6.3mW/°C
SOT-23 575°C/W 150°C/W 1.7 mW/°C
SOIC-8 175°C/W 45°C/W 5.7mW/°C
Typical deratings of the thermal resistances are given for ambient
temperature >25°C.
ELECTRICAL CHARACTERISTICS
