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Document Number: 002-14949 Rev. *G
Page 11 of 113
PRELIMINARY
CYW43353
Figure 2. Typical Power Topology for CYW43353
Internal LNLDO
80 mA
WL RF – AFE
Shaded areas are internal to the BCM43353
WL RF – TX (2.4 GHz, 5 GHz)
WL RF – LOGEN (2.4 GHz, 5 GHz)
WL RF – RX/LNA (2.4 GHz, 5 GHz)
WL RF – XTAL
WL RF – RFPLL PFD/MMD
BT RF
BT CLASS 1 PA
WL PA/PAD (2.4 GHz, 5 GHz)
VDDIO_RF
WL OTP 3.3V
WL RF – VCO
WL RF – CP
Internal LNLDO
80 mA
Internal VCOLDO
80 mA
Internal LNLDO
80 mA
XTAL LDO
30 mA
1.2V
1.2V
1.2V
1.2V
1.2V
LNLDO
100 mA
DFE/DFLL
PLL/RXTX
WLAN BBPLL/DFLL
WLAN/BT/CLB/Top, always on
WL OTP
WL PHY
WL DIGITAL
BT DIGITAL
WL/BT SRAMs
CLDO
Peak 300 mA
Average 175 mA
(Bypass in deep
sleep)
1.2V– 1.1V
MEMLPLDO
3 mA
VDDIO
BTLDO2P5
Peak 70 mA
Average 15 mA
2.5V
Internal LNLDO
25 mA
Internal LNLDO
8 mA
LDO3P3
Peak 800–450 mA
Average 200 mA
2.
5
V
2.
5
V
3.3V
1.2V
1.35V
WL_REG_ON
BT_REG_ON
LPLDO1
3 mA
Core Buck
Regulator
CBUCK
Peak 600 mA
Average 275 mA
1.1V
VDDIO
VBAT
0.9V