AP432/AP432A
ADJUSTABLE PRECISION SHUNT REGULATOR
General Description
Features
The AP432/432A are 3-terminal adjustable precision shunt
regulators with guaranteed stable temperature over the
applicable extended commercial temperature range. The output
voltage may be set at any level greater than 1.24\/ (VREF) up to
20V 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.
•
Precision reference voltage
AP432 : 1.24V ± 1%
AP432A : 1.24V ± 0.5%
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•
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•
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Sink current capability: 200mA
Minimum cathode current for regulation: 150µA
Equivalent full-range temp coefficient: 30 ppm/oC
Fast turn-on response
Low dynamic output impedance: 0.2Ω
Programmable output voltage to 20V
Low output noise
Packages: SOT23, SOT23R, SOT25, SC59 (W package
code), SC59 (R package code), SOP-8L and TO92-3L
SOT23, SOT23R, SOP-8L and SC59: Available in
“Green” Molding Compound (No Br, Sb) (Note 1)
Lead Free Finish/ RoHS Compliant for Lead Free and
“Green” Products (Note 2)
The precise +/- 1% reference voltage tolerance of the
AP432/432A 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.
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Ordering Information
A P 4 3 2
X X X
X
Package
Blank: SOP-8L
Reference Voltage
Packing
Lead-Free
Tolerance
Blank : +/- 1%
: +/- 0.5%
:
L : Lead Free
G : Green (Note 1)
-B : Bulk
V
: TO92-3L
:
-7/-13 Taping
23
SOT
SA
W
R
A
:
:
:
:
-A : Ammo Box
(Note 3)
SC59
SC59
SOT25
Q
SR : SOT23R
Note:
1. SOT23, SOT23R are “Green” products only.
2. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
7” Tape and Reel
Part Number
13” Tape and Reel
Ammo Box
Device Package Packaging
Part Number
Part Number
(Note 4)
Code
(Note 5)
Quantity
Quantity
Quantity
Suffix
Suffix
Suffix
3000/Tape
& Reel
SA
SR
Q
SOT23
SOT23R
SOT25
SC59
AP432(A)SA
AP432(A)SR
AP432(A)Q
AP432(A)W
AP432(A)R
-7
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
3000/Tape
& Reel
3000/Tape
& Reel
3000/Tape
& Reel
3000/Tape
& Reel
-7
-7
-7
-7
NA
NA
NA
NA
Lead-free
W
R
SC59
2500/Tape &
Reel
SOP-8L
AP432(A)
NA
NA
NA
NA
-13
NA
NA
NA
-A
AP432(A)V
NA
2000/Box
V
TO92-3L
Lead-free
Notes: 3. Ammo Box is for TO92-3 Spread Lead.
4. Suffix “A” denotes AP432A device.
5. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.
AP432/AP432A Rev. 6
1 of 12
MARCH 2007
www.diodes.com
© Diodes Incorporated