SPX431A Datasheet

IC型號(hào)：
SPX431A
PDF描述：
Precision Adjustable Shunt Regulator
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109.33KB
PDF頁數(shù)：
12頁
芯片廠家：
SIPEX

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SPX431A,B,C

Precision Adjustable Shunt Regulator

FEATURES

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Trimmed Bandgap to 0.5%, 1% and 2%

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Wide Operating Current 1mA to 150mA

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Extended Temperature 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 TO-92, SOIC, SOT-89,

SOT-23-5

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Improved Replacement in Performance for

TL431

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Low Cost Solution

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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Error Amplifiers

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Single Supply Amplifier

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Monitors / VCRs / TVs

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Personal Computers

Now Available in Lead Free Packaging

Refer to page 3 for pinouts.

DESCRIPTION

The SPX431 is a 3-terminal adjustable shunt voltage regulator providing a highly accurate

bandgap reference. The SPX431 acts as an open-loop error amplifier with a 2.5V temperature

compensation reference. The SPX431's thermal stability, wide operating current (150mA) 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. SPX431A 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 36 volts with two external

resistors. The SPX431 is available in TO-92, SOIC-8, SOT-89, and SOT-23-5 packages.

TYPICAL APPLICATIONS CIRCUIT

Cathode (K)

Reference

(R)

2.5V

Anode (A)

Date: 1/19/05

SPX431A,B,C Precision Adjustable Shunt Regulator

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