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SPX2431 Datasheet(PDF) 1 Page - Sipex Corporation |
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SPX2431 Datasheet(HTML) 1 Page - Sipex Corporation |
1 / 9 page 1 Date: 1/19/05 SPX2431 Precision Adjustable Shunt Regulator © Copyright 2005 Sipex Corporation Precision Adjustable Shunt Regulator SPX2431 DESCRIPTION FEATURES ■ Trimmed Bandgap to 0.5% and 1.0% ■ Wide Operating Current 1mA to 100mA ■ Extended Temp. Range: 0°C to 105°C ■ Low Temperature Coefficient 30 ppm/°C ■ Offered in 3 Pin SOT-23 (M) ■ Replacement for TL431, AS2431 ■ Low Noise Output ® The SPX2431 is a 3-terminal adjustable shunt voltage regulator providing a highly accurate bandgap reference.The SPX2431 acts as an open-loop error amplifier with a 2.5V temperature compensation reference.The SPX2431’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. SPX2431A 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 VREF and 20 volts with two external resistors. In the standard shunt configuration, the combination of a low temperature coefficient, sharp turn on characteristics, low output impedance, and programmable output voltage makes this precision reference an excellent error amplifier. The SPX2431 is available in SOT-23-3 package. APPLICATIONS ■ Battery Operating Equipment ■ Adjustable Supplies ■ Switching Power Supplies FUNCTIONAL DIAGRAM + - 2.5V Reference (R) Anode (A) Cathode (K) Now Available in Lead Free Packaging ■ Error Amplifiers ■ Single Supply Amplifier ■ Monitors / VCRs / TVs ■ Personal Computers SPX2431 3 Pin SOT-23 1 2 3 Top View CATHODE REF ANODE |
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