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AP432/AP432A
ADJUSTABLE PRECISION SHUNT REGULATOR
Features
AP432/AP432A Rev. 6 1 of 12 MARCH 2007
www.diodes.com
Diodes Incorporated
Lead-free
Lead-free
Precision reference voltage
AP432 : 1.24V
±
1%
AP432A : 1.24V
±
0.5%
Sink current capability: 200mA
Minimum cathode current for regulation: 150μA
Equivalent full-range temp coefficient: 30 ppm/
o
C
Fast turn-on response
Low dynamic output impedance: 0.2
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 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\/ (V
REF
) up to
20V merely by selecting two external resistors that act as a
voltage divider network. These devices have a typical output
impedance of 0.2
. 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
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.
Ordering Information
A P 4 3 2 X X X X
Package
Blank: SOP-8L
V : TO92-3L
Packing
-B Bulk
SA
W
R
Q
SR : SOT23R
: SOT23
: SC59
: SC59
: SOT25
Lead-Free
L : Lead Free
G : Green
(Note 1)
Tolerance:
Blank : +/- 1%
Reference Voltage
A : +/- 0.5%
-7/-13 : Taping
-A : mmo Box
(Note 3)
Note:
2. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see
EU Directive Annex Notes 5 and 7.
1. SOT23, SOT23R are “Green” products only.
7” Tape and Reel
13” Tape and Reel
Quantity ParSuffix
Ammo Box
Quantity ParSuffix
Device
(Note 4)
Package
Code
Packaging
(Note 5) QuantityPart Number
Suffix
AP432(A)SA
SA
SOT23
3000/Tape
& Reel
3000/Tape
& Reel
3000/Tape
& Reel
3000/Tape
& Reel
3000/Tape
& Reel
-7
NA
NA
NA
NA
AP432(A)SR
SR
SOT23R
-7
NA
NA
NA
NA
AP432(A)Q
Q
SOT25
-7
NA
NA
NA
NA
AP432(A)W
W
SC59
-7
NA
NA
NA
NA
AP432(A)R
R
SC59
-7
NA
NA
NA
NA
AP432(A)
SOP-8L
NA
NA
2500/Tape &
Reel
NA
-13
NA
NA
AP432(A)V
V
TO92-3L
NA
NA
NA
2000/Box
-A
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
.
General Description