SPX2431_05 Datasheet

IC型號(hào)：
SPX2431_05
PDF描述：
Precision Adjustable Shunt Regulator
文件大小：
144.03KB
PDF頁(yè)數(shù)：
9頁(yè)
芯片廠家：
SIPEX

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SPX2431

Precision Adjustable Shunt Regulator

FEATURES

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Trimmed Bandgap to 0.5% and 1.0%

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Wide Operating Current 1mA to 100mA

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Extended Temp. Range: 0擄C to 105擄C

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Low Temperature Coefficient 30 ppm/擄C

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Offered in 3 Pin SOT-23 (M)

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Replacement for TL431, AS2431

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Low Noise Output

APPLICATIONS

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Battery Operating Equipment

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Adjustable Supplies

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Switching Power Supplies

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ANODE

SPX2431

3 Pin SOT-23

REF

Top View

CATHODE

Now Available in Lead Free Packaging

Error Amplifiers

Single Supply Amplifier

Monitors / VCRs / TVs

Personal Computers

DESCRIPTION

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鈥檚 thermal stability, wide operating current (100mA) and

temperature range (0擄C to 105擄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 V

REF

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.

FUNCTIONAL DIAGRAM

Cathode (K)

Reference

(R)

2.5V

Anode (A)

Date: 1/19/05

SPX2431 Precision Adjustable Shunt Regulator

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