SPX431C
Precision Adjustable Shunt Regulator
FEATURES
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Wide Operating Current…………………….1mA to 150mA
Extended Termperature Range……………………… 105°C
°
Low Temperature Coeffecient 30 ppm/°C
Offered in TO-92, SOT-89 & SOT-23-5 Packages
Improved
Replacement in Performance for TL431
Low Cost Solution
APPLICATIONS
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Battery Operating Equipments
Adjustable Supplies
Switching Power Supplies
Error Amplifiers
Single Supply Amplifier
Monitors / VCR / TV
Personal Computers
PRODUCT DESCRIPTION
The SPX431C is a 3-Terminal Adjustable Shunt Voltage Regulator providing a highly accurate bandgap reference. SPX431C acts as
an open-loop error amplifier with a 2.5V temperature compensation reference. The SPX431C thermal stability, wide operating current
(150mA) and temperature range (105°C) makes it suitable for all variety of applications that are looking for a low cost solution with
high performance.
The output voltage may be adjusted to any value between V
REF
and 36V with 2 external resistors. The SPX431C is operating in full
industrial temperature range of 0°C to 105°C. The SPX431C is available in TO-92, SOT-23-5 and SOT-89 packages.
PIN CONFIGURATION
SOT-23-5 (M5)
REF
5
1
2
ANODE
4
SOT-89 (M1)
TO-92 (N)
1
2
3
SPX431C
3
CATHODE
SPX431C
1
REF
2
3
CATHODE
REF
ANODE
CATHODE
N/C N/C
ANODE
Top View
Top View
CATHODE (K)
Bottom View
REFERENCE
(R)
+
-
2.5V
ANODE (A)
Rev. 10/30/00
SIPEX [ SIPEX CORPORATION ]
