DA14580
FINAL
Bluetooth Low Energy 4.2 SoC
2.35 V to 3.3 V
Lithium
coin-cell
LDO
LDO
LDO
analog/RF
digital
analog/RF
retention
VBAT1V
Buck Converter
DA14580
Figure 8: Supply Overview, Coin-Cell Application
0.9 V to 2.0 V
VBAT1V
SWITCH
internal supply for boost conv.
VBAT3V
VDCDC
< 0.9 V
Alkaline
or
on
NiMH
Boost Converter
VDCDC_RF
VBAT_RF
LDO
LDO
LDO
digital
analog/RF
retention
DA14580
Figure 9: Supply Overview, Alkaline-Cell Application
The usage of Boost or Buck mode with respect to the
provided voltage ranges is illustrated in the following
figure which also illustrates the efficiency of the engine
assuming a 10 mA constant load.
Datasheet
Revision 3.4
09-Nov-2016
CFR0011-120-00-FM
16 of 155
© 2014 Dialog Semiconductor
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