UM-PM-039
DA9070 / DA9231 Fuel Gauge Development Kit
NDA Confidential
User Manual
Revision 2.1
28-Oct-2018
14 of 18
© 2018 Dialog Semiconductor
DA9231 Evaluation
The typical application diagram of DA9231 is shown in
DA9231 includes a Buck regulator and an LDO. On the DA9070 Fuel gauge EVK, both the Buck and
LDO regulators can be evaluated individually. It is recommended to follow the operation conditions
as shown in
to avoid any damage to the EVK board. For test and measurement set-up,
please refer to
for descriptions of connectors on the EVK board.
DA9231
SW
VBUCK_SNS
PGND
VDD_SYS
VDD
VDD_LDO
VLDO
SDA
SCL
GPO
GND
IC_EN
HOST
Buck Vout
Buck Vin
2.2 µH
10 µF
2.2 µF
Sensors
MCU/
System I/O
4.7 µF
1 µF
1 µF
LDO Vin
LDO Vout
Figure 8: DA9231 Typical Application Diagram
Recommended Operating Conditions
Table 4: Recommended Operation Conditions
Parameter
Description
Conditions
Min Typ
Max Unit
VDD
Analog Input
VDD= VDD_SYS
2.5
5.5
V
VDD_SYS
Power Input
VDD= VDD_SYS
2.5
5.5
V
VDD_LDO
LDO mode
1.8
5.5
V
Load Switch mode
0.8
5.5
V
I_BUCK
Buck Output Current
300
mA
I_LDO
LDO Output Current
100
mA
