Operation Manual

AS1364 - Demo Board Manual
Low Dropout Regulator
Demo Board Manual
AS1364
1A, Low-Dropout Linear Voltage Regulator
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Revision 1.00
1-5
AS1364 - Demo Board Manual
Low Dropout Regulator
General Description
Board Description
G
C
H
I
B
L
M
A
F
D
K
E
O
C
B
A
D
J
N
Figure 1: Board Description - Connectors
Figure 2: Board Description – Measurement Points
Connector Description
Label
Name
Description
Info
A
B
VIN
GND
Supply Voltage
Ground
Supply voltage range from 2.0V to 5.5V
C
EN
Active High Enable Input
D
VOUT
Output Voltage
Set the digital input “high” for normal operation. For
shutdown, set “low”
Output voltage range from 1.2V to 4.5V (fixed)
Output voltage range from 1.2V to 5.3V (adjustable)
Measurement Point Description
Label
Name
Description
E
F
G
H
I
J
K
L
VIN
GND
EN
POK
BP
SET
VOUT
Load
Supply Voltage
Ground
Active High Enable Input
Open Drain POK Output
BP (fixed Vout version)
SET (adjustable Vout version)
Output Voltage
External load
Info
Measurement Points
ON: The AS1364 is enabled
M
N
O
EN
R1
R2
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OFF: The AS1364 is disabled
Enable
Resistor divider for adjustable
Vout version
Revision 1.00
No Jumper: Connect a valid enable signal
via external connector “C”.
R1 between Vout and SET
R2 between SET and GND
2-5
AS1364 - Demo Board Manual
Low Dropout Regulator
Getting Started
The AS1364 Demoboard is designed to work with the AS1364 fixed output voltage version.
The AS1364 fixed Vout version is available with 1.5V, 1.8V, 3.0V, 3.3V and 4.5V.
The AS1364-AD Demoboard is designed to work with the AS1364 adjustable output voltage version.
The AS1364-AD adjustable Vout version has a valid Vout range from 1.2V to 5.3V. This Vout is adjustable via the
resistor divider R1/R2. A value for R2 in the range of 25kΩ to 100kΩ should be sufficient.
To use the factory preset Vout of 3.3V connect SET directly to GND (R1 = open; R2 = 0Ω).
Bill of Materials
Ref.
Function
Value
Description
Manufacturer
Cin
Input Capacitor
4.7µF
1206 / X7R / 16V
diverse
Cout
Output Capacitor
4.7µF
1206 / X7R / 16V
diverse
CBP*
Bypass Capacitor
10nF
0805/X7R
diverse
RPOK
POK pull-up resistor
100kΩ
0805
diverse
U1
LDO
ASRx
8pin TDFN 3x3
Austriamicrosystems AG
Mfg. Order Nr.
AS1364-BTDT-xx
*) only for fixed Vout version
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Revision 1.00
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AS1364 - Demo Board Manual
Low Dropout Regulator
Layout of Demo Board
Board schematics and layout
Figure 3: Schematics (fixed Vout)
Figure 4: Schematics (adjustable Vout)
Figure 5: Top + Bottom Layer (fixed Vout)
Figure 6: Top + Bottom Layer (adjustable Vout)
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Revision 1.00
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AS1364 - Demo Board Manual
Low Dropout Regulator
Copyright
Copyright © 1997-2010, austriamicrosystems AG, Tobelbaderstraße 30, 8141 Unterpremstätten - Graz, 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.
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 life-sustaining 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
Tobelbaderstraße 30
A-8141 Unterpremstätten - Graz, 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
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5-5