ADJUSTABLE PRECISION
ZENER SHUNT REGULATOR
Issue 1 - NOVEMBER 1998
DEVICE DESCRIPTION
The ZR431L is a three terminal adjustable
s h u n t r e g u l a t o r o f f e r i n g e x c e l l e nt
temperature stability and output current
handling capability up to 25mA. The output
voltage may be set to any chosen voltage
between 1.24 and 10 volts by selection of
two external divider resistors.
The devices can be used as a replacement
for zener diodes in many applications
r e q u i r i n g a n i m p r ov e me nt i n z e n e r
performance.
The ZR431L is particularly used in the
feedback control loop of switch mode power
supplies. In this application the device 1.24
volt reference enables the generation of low
voltage supplies, typically 3.3 volts or 3 volts.
ZR431L
FEATURES
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Surface mount SOT23 package
TO92 package
2.5% and 1% tolerance
Maximum temperature coefficient 50
ppm/擄C
Temperature compensated for
operation over the full temperature
range
Programmable output voltage
100碌A(chǔ) to 25mA current sink capability
Low output noise
APPLICATIONS
Shunt regulator
Series regulator
Voltage monitor
Over voltage/ under voltage protection
Switch mode power supplies
SCHEMATIC DIAGRAM
V
Z
V
ref
G
nd
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英文版
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
ZETEX
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英文版
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
ZETEX [Zet...
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英文版
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
ZETEX
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英文版
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
ZETEX [Zet...
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英文版
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
ZETEX
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英文版
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
ZETEX [Zet...
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英文版
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
ZETEX
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英文版
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
ZETEX [Zet...
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英文版
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
ZETEX
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英文版
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
ZETEX [Zet...
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英文版
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
ZETEX
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英文版
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
ZETEX [Zet...
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英文版
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
ZETEX
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英文版
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
ZETEX [Zet...
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英文版
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
ZETEX
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英文版
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
ZETEX [Zet...
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英文版
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
ZETEX
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英文版
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
ZETEX [Zet...
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英文版
Shunt Voltage Reference IC 20V ±2% 100mA SOT-223
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英文版
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
ZETEX
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