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SPX431LN/TR

Description
1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.503 V, PDSO3
Categoryaccessories   
File Size100KB,12 Pages
ManufacturerSIPEX
Websitehttp://www.sipex.com/
Download Datasheet View All

SPX431LN/TR Overview

1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.503 V, PDSO3

®
SPX431L
Precision Adjustable Shunt Regulator
FEATURES
Tight Voltage Tolerance 0.5% at 10mA
Wide Operating Current 1mA to 100mA
Extended Temperature Range:
0°C to 105°C
Low Temperature Coefficient 30 ppm/°C
Improved Replacement in Performance for
TL431 and AS431
Low Cost Solution
APPLICATIONS
Battery Operating Equipment
Adjustable Supplies
Switching Power Supplies
ANODE
SPX431L
3 Pin SOT-23
1
REF
CATHODE
Now Available in Lead Free Packaging
Error Amplifiers
Single Supply Amplifier
Monitors / VCRs / TVs
Personal Computers
DESCRIPTION
The SPX431L is a 3-terminal adjustable shunt voltage regulator providing a highly accurate
bandgap reference. The SPX431L acts as an open-loop error amplifier with a 2.5V temperature
compensation reference. The SPX431L’s thermal stability, wide operating current (100mA) and
temperature range (0°C to 105°C) makes it suitable for a variety of applications that require a
low cost, high performance solution. SPX431L 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 manufacturer's assembly line and contribute a significant cost savings.
The output voltage may be adjusted to any value between V
REF
and 20V with two external
resistors. The SPX431L is available in TO-92, SOIC-8, SOT-89, and SOT-23-3 packages.
BLOCK DIAGRAM
Cathode (K)
Reference
(R)
+
-
2.5V
Anode (A)
Date: 5/25/04
SPX431L Precision Adjustable Shunt Regulator
© Copyright 2004 Sipex Corporation5
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