SPX1443N/TR Просмотр технического описания (PDF) - Signal Processing Technologies

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SPX1443N/TR

Precision Adjustable Shunt Regulator

Signal Processing Technologies 

SPX1431

Precision Adjustable Shunt Regulator

FEATURES

■ Trimmed Bandgap Reference to 0.4%

■ Wide Operating Current 1mA to 150mA

■ Extended Temperature Range:

-55°C to 125°C

■ Low Temperature Coefficient 30 ppm/°C

CATHODE 1

ANODE 2

ANODE 3

SPX1431

8 Pin nSOIC

8 REF

7 ANODE

6 ANODE

■ Offered in TO-92, SOIC, SOT-89,

SOT-23-5

AvailNa/Cble4 in Lead Free Pack5aNg/Cing

■ Improved Replacement in Performance for

LT1431

Now Available in Lead Free Packaging

■ Low Cost Solution

APPLICATIONS

■ Battery Operating Equipment

■ Adjustable Supplies

■ Switching Power Supplies

■ Error Amplifiers

■ Single Supply Amplifier

■ Monitors / VCRs / TVs

■ Personal Computers

DESCRIPTION

The SPX1431 is a 3-terminal adjustable shunt voltage regulator providing a highly accurate

bandgap reference. The SPX1431 acts as an open-loop error amplifier with a 2.5V temperature

compensation reference. The SPX1431's thermal stability, wide operating current (150mA)

and temperature range (-55°C to 125°C) makes it suitable for a variety of applications that

require a low cost, high performance solution. SPX1431 tolerance of 0.4% 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 lines and contributes a significant cost

savings.

The output voltage may be adjusted to any value between VREF and 36 volts with two external

resistors. The SPX1431 is available in TO-92, SOIC-8, SOT-89, and SOT-23-5 packages.

BLOCK DIAGRAM

Cathode (K)

Mar13-07

Reference

(R)

+

-

2.5V

Anode (A)

SPX1431 Precision Adjustable Shunt Regulator



© 2007 Sipex Corporation

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