austriamicrosystems AG
is now
ams AG
The technical content of this austriamicrosystems application note is still valid.
Contact information:
Headquarters:
ams AG
Tobelbaderstrasse 30
8141 Unterpremstaetten, Austria
Tel: +43 (0) 3136 500 0
e-Mail: ams_sales@ams.com
Please visit our website at www.ams.com
AS1372-AN01- Demoboard
www.austriamicrosystems.com Revision 1.0 / 2011/11/15 1 - 7
Application Note: AN01- Demoboard
AS1372
350mA Dual Rail Linear Regulator
Preliminary Application Note
ams AG
Technical content still valid
AS1372-AN01- Demoboard
www.austriamicrosystems.com Revision 1.0 / 2011/11/15 2 - 7
Table of Contents
1 FURTHER APPLICATIONS ................................................................................................................... 3
2 REVISION STATUS .............................................................................................................................. 3
3 GENERAL DESCRIPTION ..................................................................................................................... 3
4 HW- OVERVIEW:.................................................................................................................................. 4
4.1 AS1372 Demoboard jumper and device locations ....................................................................................... 4
4.2 AS1372 Demoboard 1V1 schematic ............................................................................................................. 4
4.3 AS1372 Demoboard 1V1 layout .................................................................................................................... 5
5 ORDERING INFORMATION .................................................................................................................. 6
6 COPYRIGHT ........................................................................................................................................ 7
7 DISCLAIMER ....................................................................................................................................... 7
AS3610
ams AG
Technical content still valid
AS1372-AN01- Demoboard
www.austriamicrosystems.com Revision 1.0 / 2011/11/15 3 - 7
1 Further Applications
Visit our home-page: http: //www.austriamicrosystems.com
2 Revision status
AS1372- AN01 - Demoboard Rev.: 1V0
AS1372 Demoboard – Layout Rev.: 1V1
AS1372 Demoboard – Schematic Rev.: 1V1
3 General Description
Connector Description
Label Name Description Info
A Vin Input voltage
Input voltage range from 0.7V to 4.5V
Vin ≤ Vbias in operating conditions!
B Vbias Bias Supply voltage Bias Supply voltage range from 2.5V to 5.5V
C EN Active High Enable Input Pull this pin to “low” to disable the device.
D GND Ground
E Vout Output voltage Output voltage range from 0.5V to 2.2V
Measurement Point Description
Label Name Description Info
F Vin Input voltage
Measurement Points
G Vout Output voltage
H GND Ground
I Vbias Bias Supply voltage
J EN Active High Enable Input
K Vin - Vbias
Input voltage
to
Bias Supply voltage
Jumper to connect the Bias Supply voltage
directly to the Input voltage
L EN Enable
ON: The AS1372 is on.
OFF; The AS1372 is off
No Jumper: Connect a valid enable signal
via external connector “C”.
M Load Load
Jumper to put a resistive load to the output
of AS1372
Figure 1: Board Description
-
Connector
s
Figure 2
: Board Description
–
Measurement Points
ams AG
Technical content still valid
AS1372-AN01- Demoboard
www.austriamicrosystems.com Revision 1.0 / 2011/11/15 4 - 7
4 HW- Overview:
4.1 AS1372 Demoboard jumper and device locations
Listed below are the various connectors and jumpers.
4.2 AS1372 Demoboard 1V1 schematic
Ref. Function Value Description Manufacturer Mfg. Order Nr.
CIN Input Capacitor 1µF 0805 / X7R / 16V Murata GRM21BR71C105KA01
COUT
Output
Capacitor
1µF 0805 / X7R / 16V Murata GRM21BR71C105KA01
CBIAS
Bias Capacitor 1uF 0805 / X7R / 16V Murata GRM21BR71C105KA01
U1 LDO ASSN 5-bump WL-CSP 1.34x0.97x0.6mm Austriamicrosystems AG AS1372-BWLT-10
U1 LDO ASSQ 5-bump WL-CSP 1.34x0.97x0.6mm Austriamicrosystems AG AS1372-BWLT-12
U1 LDO ASSO 5-bump WL-CSP 1.34x0.97x0.6mm Austriamicrosystems AG AS1372-BWLT-13
U1 LDO ASSR 5-bump WL-CSP 1.34x0.97x0.6mm Austriamicrosystems AG AS1372-BWLT-15
ams AG
Technical content still valid
AS1372-AN01- Demoboard
www.austriamicrosystems.com Revision 1.0 / 2011/11/15 5 - 7
4.3 AS1372 Demoboard 1V1 layout
Layout (top view)
Layout (bottom view)
ams AG
Technical content still valid
AS1372-AN01- Demoboard
www.austriamicrosystems.com Revision 1.0 / 2011/11/15 6 - 7
5 Ordering Information
Evalboard AS1372 version SAP number
AS1372-BWLT-10 EB Rev1.1 Vout = 1.0V 990600331
AS1372-BWLT-12 EB Rev1.1 Vout = 1.2V 990600332
AS1372-BWLT-13 EB Rev1.1 Vout = 1.3V 990600333
AS1372-BWLT-15 EB Rev1.1 Vout = 1.5V 990600334
ams AG
Technical content still valid
AS1372-AN01- Demoboard
www.austriamicrosystems.com Revision 1.0 / 2011/11/15 7 - 7
6 Copyright
Copyright © 1997-2011, austriamicrosystems AG, Schloss Premstaetten, 8141 Unterpremstaetten, Austria-
Europe. Trademarks Registered ®. All rights reserved. The material herein may not be reproduced, adapted,
merged, translated, stored, or used without the prior written consent of the copyright owner.
All products and companies mentioned are trademarks or registered trademarks of their respective companies.
7 Disclaimer
Devices sold by austriamicrosystems AG are covered by the warranty and patent indemnification provisions
appearing in its Term of Sale. austriamicrosystems AG makes no warranty, express, statutory, implied, or by
description regarding the information set forth herein or regarding the freedom of the described devices from
patent infringement. Austriamicrosystems AG reserves the right to change specifications and prices at any time
and without notice. Therefore, prior to designing this product into a system, it is necessary to check with
austriamicrosystems AG for current information.
This product is intended for use in normal commercial applications. Applications requiring extended temperature
range, unusual environmental requirements, or high reliability applications, such as military, medical life-support
or lifesustaining equipment are specifically not recommended without additional processing by
austriamicrosystems AG for each application. For shipments of less than 100 parts the manufacturing flow might
show deviations from the standard production flow, such as test flow or test location.
The information furnished here by austriamicrosystems AG is believed to be correct and accurate. However,
austriamicrosystems AG shall not be liable to recipient or any third party for any damages, including but not
limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect,
special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing,
performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise
or flow out of austriamicrosystems AG rendering of technical or other services.
Contact Information
Headquarters
austriamicrosystems AG
Tobelbader Strasse 30
Schloss Premstaetten
A-8141 Unterpremstaetten, Austria
T. +43 (0) 3136 500 0
F. +43 (0) 3136 5692
For Sales Offices, Distributors and Representatives, please visit:
http://www.austriamicrosystems.com/contact
ams AG
Technical content still valid
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