
AS3691
Datasheet
Table of Contents
1
2
3
4
5
General Description ......................................................................................................................................... 1
Key Features.................................................................................................................................................... 1
Applications...................................................................................................................................................... 1
Application Diagrams ....................................................................................................................................... 1
Pinout............................................................................................................................................................... 4
5.1
5.2
Pin Assignments ....................................................................................................................................... 4
Pin Descriptions........................................................................................................................................ 4
6
Characteristics ................................................................................................................................................. 6
6.1
6.2
6.3
Absolute Maximum Ratings ...................................................................................................................... 6
Operating Conditions ................................................................................................................................ 6
Electrical Characteristics........................................................................................................................... 7
7
8
Typical Operation Characteristics .................................................................................................................... 8
Detailed Functional Description ..................................................................................................................... 12
8.1
8.2
8.3
Shunt Regulator...................................................................................................................................... 12
Overtemperature Protection.................................................................................................................... 12
Automatic Supply Regulation.................................................................................................................. 13
9
Application Information .................................................................................................................................. 14
9.1
Design Example...................................................................................................................................... 15
9.1.1
Using Automatic Supply Regulation................................................................................................. 16
9.2
10
10.1
10.2
10.3
11
Layout Recommendations ...................................................................................................................... 16
Package Drawings and Markings ............................................................................................................... 17
QFN 4x4 Package Drawings and Marking .............................................................................................. 17
ePTSSOP Package Drawings and Marking............................................................................................ 19
DIE Delivery............................................................................................................................................ 20
Ordering Information .................................................................................................................................. 21
Revision History
Revision
2.3
Date
30.10.2007
Owner
ptr
Description
- Added Trays as delivery option (order code AS3691A-
ZQFT)
www.austriamicrosystems.com (ptr)
Revision 2.3
3 - 22