AP431A データシートの表示（PDF） - Anachip Corporation
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AP431A Datasheet PDF : 17 Pages
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AP431/AP431A
Adjustable Precision Shunt Regulator
Features
Description
• Precision reference voltage
AP431 : 2.495V ± 1%
AP431A : 2.495V ± 0.5%
• Sink current capability: 200mA
• Minimum cathode current for regulation: 300μA
• Equivalent full-range temp coefficient: 30 ppm/oC
• Fast turn-on response
• Low dynamic output impedance: 0.2Ω
• Programmable output voltage to 36v
• Low output noise.
• Packages: TO92, SOT89, SOT23, SOT25 and
SOP
The AP431/AP431A are 3-terminal adjustable
precision shunt regulators with guaranteed
temperature stability over the applicable extended
commercial temperature range. The output voltage
may be set at any level greater than 2.495V(VREF)
up to 36V merely by selecting two external resistors
that act as a voltage divider network. These devices
have a typical output impedance of 0.2Ω. Active
output circuitry provides very sharp turn-on
characteristics, making these devices excellent
improved replacements for Zener diodes in many
applications.
The precise (+/-) 1% Reference voltage tolerance of
the AP431/431A make it possible in many
applications to avoid the use of a variable resistor,
consequently saving cost and eliminating drift and
reliability problems associated with it.
Ordering Information
A P 4 3 1XXXXX
Operating Temp. Range
Blank : -20oC~85oC
I : -40oC~85oC
Reference Voltage
Tolerance:
Blank : +/- 1%
A : +/- 0.5%
Package
Lead Free
Blank : SOP-8L Blank : Normal
Y : SOT89-3L L : Lead Free Package
V : TO92-3L
W : SOT23-3L
R : SOT23-3L
Q : SOT25
Packing
Blank : Tube or bulk
A : Taping
Typical Application Circuit
VIN
+
Cin
AP431
VOUT
R1
+
Cout
R2
VOUT = (1+R1/R2)VREF
Precision Regulator
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of
this product. No rights under any patent accompany the sale of the product.
Rev.1.0 May.7, 2004
1/17
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