SPX432N/TR Datasheet

IC型號(hào)：
SPX432N/TR
PDF描述：
1.24V Precision Adjustable Shunt Regulator
文件大?。?/label>
139.48KB
PDF頁數(shù)：
11頁
芯片廠家：
SIPEX

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SPX432

1.24V Precision Adjustable Shunt Regulator

FEATURES

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Low Voltage Operation, 1.24V

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Trimmed Bandgap to 0.5% and 1%

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Wide Operating Current, 1mA to 80mA

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Adjustable Output Voltage, V

REF

to 18V

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Extended Temp.Range: 0擄C to 105擄C

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Low Temperature Coefficient, 50 ppm/擄C

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Offered in TO-92, SOIC, SOT-23-3

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Replacement for TLV431, AS432

APPLICATIONS

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Switching Power Supplies

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Adjustable Supplies

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Error Amplifiers

Anode

SPX432

3 Pin SOT-23

Ref

Cathode

Now Available in Lead Free Packaging

Refer to page 11 for other pinouts.

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Single Supply Amplifier

Monitors / VCRs / TVs

Personal Computers

Voltage References

DESCRIPTION

The SPX432 is a 3-terminal adjustable shunt voltage regulator providing a highly accurate 1.24V

bandgap reference with 0.5% tolerance. The SPX432鈥檚 thermal stability, wide operating current

(80mA) and temperature range (0擄C to 105擄C) makes it suitable for a variety of applications. SPX432

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鈥?assembly lines and contribute a

significant cost savings.

The SPX432 is an ideal voltage reference in an isolated feedback circuit for switch mode power

supplies. SPX432 offers many advantages over the TLV431 such as wider output voltage (18V vs.

6V), higher output current (80mA vs. 15mA) and a wider operating temperature range with a tighter

tolerance down to 0.5%.

BLOCK DIAGRAM

Cathode (K)

Reference

(R)

1.24V

Anode (A)

Date: 12/11/04

SPX432 1.24V Precision Adjustable Shunt Regulator

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