Datasheet

SYS
BAT
4.7uF / 6.3V
TS
NTC
ISET
4.7uF / 4V
1uF
LiIon
SYS
PB_IN
VLDO1
RESET
SCLK
SDAT
3k
foracharge
currentof 150mA
LDO1
200mA
BAT
INT
charger / powerpath
ON /
OFF
FB_DCDC1
2.2uH
L1
DCDC1
200mA
4.7uF
TPS65720
SYS
VINLDO1
VDCDC 1=2.05
V
VLDO 1 = 1.85V
GPIO1
GPIO2
GPIO0
GPIO3
GPIOor
5mA current
sink
I2Cinterface
reset
generator /
startuplogic
PGND
AGND
HOLD_LDO1
HOLD_DCDC1
AC
2.2uF
R1
R2
R6
R5
10k
360k
150k
bluetoothchip
Vin
Reset
INT
GPIO
SCLK
SDAT
indicationLEDs
toSYSorVDCDC1
dependingonLED
forwardvoltage
2 x 3.3k
2 x 100k
22pF
TPS65720
TPS65721
www.ti.com SLVS979 –OCTOBER 2009
APPLICATION CIRCUITS
Figure 34. Typical Bluetooth Application
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