SPX431N SIPEX [Sipex Corporation], SPX431N Datasheet
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SPX431N
Manufacturer Part Number
SPX431N
Description
Precision Adjustable Shunt Regulator
Manufacturer
SIPEX [Sipex Corporation]
Datasheet
1.SPX431N.pdf
(8 pages)
FEATURES
• Trimmed Bandgap to 0.5%
• Wide Operating Current..........................1mA to 150mA
• Extended Temperature Range....................0° ° ° ° C to 105° ° ° ° C
• Low Temperature Coefficient ............................30 ppm/°C
• Offered in TO-92, SOIC, SOT-89, SOT-23-5
• Improved Replacement in Performance for TL431
• Low Cost Solution
PRODUCT DESCRIPTION
The SPX431 is a 3-terminal adjustable shunt voltage regulator providing a highly accurate 0.5% bandgap reference. SPX431 acts as an
open-loop error amplifier with a 2.5V temperature compensation reference. The SPX431 thermal stability, wide operating current
(150mA) and temperature range (0°C to 105°C) makes it suitable for all variety of application that are looking for a low cost solution
with high performance. SPX431 tolerance of 0.5% is proven to be sufficient to overcome all of the other errors in the system to
virtually eliminate the need for trimming in the power supply manufactures assembly line and contribute a significant cost
savings.
The output voltage may be adjusted to any value between V
extended temperature range of 0°C to 105°C. The SPX431 is available in TO-92, SO-8, SOT-89, and SOT-23-5 packages.
CATHODE
ANODE
ANODE
N/C
8-Pin Surface Mount (S)
1
2
3
4
Top View
SPX431
8
7
6
5
ANODE
ANODE
REF
N/C
PIN CONFIGURATIONS
SOT-23-5 (M5)
N/C
REF
5
1
Top View
SPX431
REF
N/C CATHODE
2
ANODE
and 36 volts with two external resistors. The SPX431 is operating an
4
3
Precision Adjustable Shunt Regulator
REF
SOT-89 (M1)
1
Top View
SPX431
ANODE
2
3
CATHODE
APPLICATIONS
• Battery Operating Equipments
• Adjustable Supplies
• Switching Power Supplies
• Error Amplifiers
• Single Supply Amplifier
• Monitors / VCR / TV
• Personal Computers
REF
Bottom View
1
TO-92 (N)
ANODE
2
3
CATHODE
SPX431
Rev. 10/30/00