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SPX3431AM1 Datasheet

  • SPX3431AM1

  • Micropower 2.5V Precision Adjustable Shunt Regulator

  • 142.89KB

  • 5頁(yè)

  • SIPEX

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SPX3431
Micropower 2.5V Precision
Adjustable Shunt Regulator
FEATURES
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Voltage Tolerance
..................................0.5%
& 1.0%
Wide Operating Current
....................
1mA to 100mA
Extended Temperature Range
..........................
105擄C
擄
Low Temperature Coefficient ........................30 ppm/擄C
Offered in SOT-23, TO-92 & SOT 89
Low Output Noise
APPLICATIONS
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Battery Operating Equipment
Adjustable Supplies
Switching Power Supplies
Error Amplifiers
Single Supply Amplifier
Monitors / VCR / TV
Personal Computers
PRODUCT DESCRIPTION
The SPX3431 is a 3-terminal Adjustable Shunt Voltage Regulator providing a highly accurate 0.5% bandgap reference. SPX3431 acts
as an open-loop error amplifier with a 2.5V temperature compensation reference. The SPX3431 thermal stability, wide operating
current (100mA) and temperature range (0擄C to 105擄C) makes it suitable for all variety of applications that are looking for a low cost
solution with high performance.
SPX3431 tolerance of 0.5% is proven to be sufficient to overcome all the other errors in the
system to virtually eliminate the need for trimming in the power supply manufactures assembly line and contribute a big Cost
Savings.
In the standard shunt configuration, the combination of low temperature coefficient (T.C.), sharp turn-on characteristics, low output
impedance and programmable output voltage make this precision reference an excellent error amplifier.
The SPX3431 is a direct replacement for the SPX431 and TL431 in low voltage, low current applications. SPX3431 is also available
in SOT-89 and TO-92.
PIN CONNECTIONS
SOT-23
Marking & pinout for
the 0.5% device
ANODE
TO-92 (N)
1
2
3
SOT-23
Marking & pinout for
the 1% device
ANODE
SOT-89
Marking &
pinout for all
devices
SPX3431
CATHODE
ANODE
REF
CATHODE
REF
SPX3432
1
SPX3431
2
3
CATHODE
REF
CATHODE
ANODE
REF
Top View
Top View
Top View
Top View
Rev. 10/25/00

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