PMU Features
BCM88335 Data Sheet
Figure 3 shows the regulators and a typical power topology.
Figure 3: Typical Power Topology for the BCM88335
Internal LNLDO
80 mA
1.2V
WL RF – AFE
Shaded areas are internal to the BCM89335
Internal LNLDO
80 mA
Internal VCOLDO
80 mA
1.2V
1.2V
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)
1.2V
Internal LNLDO
80 mA
XTAL LDO
30 mA
1.2V
WL RF – XTAL
WL RF – RFPLL PFD/MMD
1.2V
LNLDO
100 mA
BT RF
DFE/DFLL
WL_REG_ON
PLL/RXTX
BT_REG_ON
Core Buck
Regulator
VBAT
WLAN BBPLL/DFLL
WLAN/BT/CLB/Top, always on
1.35V
CBUCK
Peak 600 mA
Average 275 mA
WL OTP
WL PHY
CLDO
Peak 300 mA
Average 175 mA
(Bypass in deep
sleep)
1.1V
LPLDO1
3 mA
1.2V– 1.1V
VDDIO
WL DIGITAL
BT DIGITAL
WL/BT SRAMs
MEMLPLDO
3 mA
0.9V
VDDIO
BTLDO2P5
Peak 70 mA
Average 15 mA
2.5V
3.3V
BT CLASS 1 PA
WL PA/PAD (2.4 GHz, 5 GHz)
VDDIO_RF
WL OTP 3.3V
LDO3P3
Peak 800–450 mA
Average 200 mA
Internal LNLDO
25 mA
WL RF – VCO
WL RF – CP
Internal LNLDO
8 mA
Broadcom®
September 23, 2015 • 88335-DS100-R
Page 22
BROADCOM CONFIDENTIAL
CYPRESS [ CYPRESS ]
