SPX431CM5 データシートの表示（PDF） - Signal Processing Technologies

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SPX431CM5

Precision Adjustable Shunt Regulator

Signal Processing Technologies 

SPX431A,B,C

Precision Adjustable Shunt Regulator

FEATURES

• Trimmed Bandgap: 0.5%, 1% and 2%

• Wide Operating Current: 1mA to 150mA

• Extended Temperature Range:

0°C to 105°C

• Low Temperature Coefficient: 30 ppm/°C

• Improved Replacement in Performance

for TL431

• Low Cost Solution

• Available in Lead Free, RoHS compliant

packaging: SOIC, SOT-89, SOT-23-3,

SOT-23-5, and TO-92

APPLICATIONS

• Battery Operated Equipment

• Adjustable Supplies

• Switching Power Supplies

• Error Amplifiers

• Single Supply Amplifier

• Monitors/VCRs/TVs

• Personal Computers

DESCRIPTION

The SPX431 is a three-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 has thermal stability, wide operating current of 150mA

and broad temperature range of 0°C to 150°C, making it suitable for a variety of applications

which require a low-cost, high performance solution. SPX431A tolerance of 0.5% is proven

to be sufficient to overcome all 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 36 volts with

two external resistors. The SPX431 is available in SOIC-8, SOT-23-3, SOT-23-5, SOT89,

and TO-92 packages.

typical applications circuit

Cathode (K)

Reference

(R)

Rev F: Nov 21-06

+

-

2.5V

Anode (A)

SPX431A,B,C Precision Adjustable Shunt Regulator



© 2006 Sipex Corporation

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