Operation Manual

Application Note: AS1370-AN01Evaluation Board Description
AS1370
High Voltage, Low Quiescent Current, 200mA LDO
AN01-Evaluation Board Description
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AS1370-AN01-Evaluation Board Description
Table of Contents
1
General Description ............................................................................................................. 3
2
Hardware Description........................................................................................................... 4
3
Schematic; Layout and BOM of AS1370 Evaluation Board ................................................. 6
3.1
Schematic ............................................................................................................................ 7
3.2
Board Layout ........................................................................................................................ 8
3.3
BOM ................................................................................................................................... 10
4
Ordering Information .......................................................................................................... 10
Revision History
Revision
Date
Owner
Description
1.0
31.10.2013
skre
Initial release
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AS1370-AN01-Evaluation Board Description
1
General Description
The AS1370 low-power, positive voltage regulator is designed to deliver up to 200mA, while
consuming only 3μA of quiescent current. The input voltage ranges from 2.6V to a maximum of
50V. Operation with large input to output differential voltages is limited by the maximum power
dissipation available from package and environment.
Figure 1: Kit Content
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AS1370-AN01-Evaluation Board Description
2
Hardware Description
The Evaluation Board has to be supplied via the pins VIN and GND in the range of 2.6V up to 50V.
The jumper “SHDN” section C in the picture below has put to “on” (downwards) in order to enable
the chip. On the AS1370 Evaluation Board the output voltage is factory-set to 3.3V.
Figure 2: Evaluation Board Overview
A
C
E
B
D
F
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AS1370-AN01-Evaluation Board Description
Label
Name
Designator
Description
Info
A
VIN
BU1
Supply
Voltage Range from 2.6V to 50V
B
SHDN
BU3
Shutdown Input
Active-High Shutdown Input.
A logic high reduces the ground pin
current to < 1μA. Connect this pin to GND
for normal operation.
“SHDN” Jumper (J1) must be removed
when using this input to enable/disable
the chip.
C
SHDN
J1
-
“on” = Normal operation
“off” = Shutdown
D
AS1370
U1
LDO
Provides an output current up to 200mA
E
VOUT
BU2
Output voltage
3.3V
F
POK
-
Power-OK
0 = VOUT < 95%(typ) of VOUTNOM
1 = VOUT > 95%(typ) of VOUTNOM
Hysteresis 1%
For detailed information according electrical characteristics please refer to the AS1370 datasheet.
The latest version of the datasheet can be found on our homepage, www.ams.com
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AS1370-AN01-Evaluation Board Description
3
Schematic; Layout and BOM of AS1370 Evaluation Board
The AS1370 Evaluation Board is a 2-layer FR4 board.
Figure 3: AS1370 PCB Layer Stack up
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AS1370-AN01-Evaluation Board Description
3.1
Schematic
Figure 4: Schematic
1
2
3
4
A
A
VIN
B
OUT
Cin
1uF
100V
1206
VIN
BU3
OUT
TP2
TP1
VIN
GND
SHDN
U1
J1
SHDN
1
2
GND
3
8
AS1370
VIN
OUT
SHDN
POK
NC
NC
NC
EXP
BU1
GND
7
5
Cout
1uF
10V
0805
Rpu
100k
0603
POK
TP3
POK
6
GND
GND
TP5
BU2
B
J2
Load
OUT
GND GND
TP4
4
BU4
SHDN
9
GND
GND
C
C
D
D
Size
Project Title
A4
AS1370 Evalboard
Date 30.10.2012
Originator sza
1
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2
3
Revision 1.0 / 30.10.2013
Revision
1.1
Sheet 3
of
3
4
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AS1370-AN01-Evaluation Board Description
3.2
Board Layout
Figure 5: Top Layer
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AS1370-AN01-Evaluation Board Description
Figure 6: Bottom Layer
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AS1370-AN01-Evaluation Board Description
3.3
BOM
Figure 7: Bill of Material
Bill of Materials
AS1370 Evalboard
Company:
ams AG
Originator:
sza
PCB Name:
AS1370 Evalboard
PCB Version:
1v1
Report Date:
#
30.10.2012
Designator
Comment
Manufacturer
Manufacturer Part Number
Quantity
Cin
1uF
MURATA - GRM31CR72A105KA01L - KONDENSATOR, 1206, 1.0UF, 100V
MURATA
GRM31CR72A105KA01L
1
2
Cout
1uF
MURATA - GRM21BR71A105KA01L - CAPACITOR, 0805, X7R, 10V, 1UF
MURATA
GRM21BR71A105KA01L
1
3
GND
TP5, TP4
VERO - 20-2137 - LÖTSTÜTZPUNKT SCHWARZ BIS MAX 475° 100ST
VERO
20-2137
2
4
J1, J2
SHDN, Load
FISCHER ELEKTRONIK - SL11 124 36G - STIFTLEISTE, 36POL, 2.54MM RASTER
FISCHER ELEKTRONIK
SL11 124 36G
2
5
OUT, VIN
TP2, TP1
VERO - 20-313137 - LÖTSTÜTZPUNKT ROT BIS MAX 475° 100ST
VERO
20-313137
2
6
POK
TP3
VERO - 20-313139 - LÖTSTÜTZPUNKT WEISS BIS MAX 475° 100ST
VERO
20-313139
1
7
Rpu
100k
MULTICOMP - MC 0.063W 0603 1% 100K - WIDERSTAND, 0603 100K
MULTICOMP
MC 0.063W 0603 1% 100K
8
U1
AS1370
AS1370-ATDT-33
Approved
4
Part Description
1
1
1
11
Notes
Ordering Information
The AS1370 Evaluation Kit can be ordered via www.ams.com.
Figure 8: Ordering Information
Ordering Code
Description
AS1370-TD-33_EK_ST
AS1370 Evaluation Board
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AS1370-AN01-Evaluation Board Description
Copyright
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description regarding the information set forth herein or regarding the freedom of the described
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any time and without notice. Therefore, prior to designing this product into a system, it is necessary
to check with ams 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
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