Application Note: AS1370-AN01-
Evaluation 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
2
3
3.1
3.2
3.3
4
General Description ............................................................................................................. 3
Hardware Description........................................................................................................... 4
Schematic; Layout and BOM of AS1370 Evaluation Board ................................................. 6
Schematic ............................................................................................................................ 7
Board Layout ........................................................................................................................ 8
BOM ................................................................................................................................... 10
Ordering Information .......................................................................................................... 10
Revision History
Revision
1.0
Date
31.10.2013
Owner
skre
Description
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
A
B
Name
VIN
SHDN
Designator
BU1
BU3
Description
Supply
Shutdown Input
Info
Voltage Range from 2.6V to 50V
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
E
F
AS1370
VOUT
POK
U1
BU2
-
LDO
Output voltage
Power-OK
Provides an output current up to 200mA
3.3V
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,
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