BCM43455 PMU Features
BCM43455 Preliminary Data Sheet
Figure 4: Typical Power Topology (Page 2 of 2)
BCM43455
Shaded areas are internal to the device.
BTLDO2P5
Max 70 mA
Avg 15 mA
2.5V
BT CLASS 1 PA
2.2 µF
0402
10 pF
0201
WL RF – PA (2.4 GHz, 5 GHz)
WL RF – PAD (2.4 GHz, 5 GHz)
VDDIO_RF
LDO3P3
VBAT
Spike 800 mA
Max 450 mA
Avg 200 mA
3.3V
4.7 µF
0402
WL OTP 3.3V
2.5V
2.5V Internal LNLDO
10 mA
WL RF – RX, TX, NMOS miniPMU LDOs
2.5V
2.5V
2.5V Internal LNLDO
25 mA
WL RF – VCO
WL RF – CP
2.5V Internal LNLDO
8 mA
No dedicated power switch, but
internal power-down modes and
block-specific power switches.
Power switch
No power switch
Broadcom®
November 5, 2015 • 43455-DS109-R
Page 25
BROADCOM CONFIDENTIAL
CYPRESS [ CYPRESS ]
