LISA-C2 series and FW75-C200 - System Integration Manual
UBX-13000620 - R21
Early Production Information
System description
Page 12 of 103
1.5
Power management
1.5.1
Power supply circuit overview
LISA-C200 and FW75-C200 modules feature a power management concept optimized for the most efficient use
of supplied power. This is achieved by hardware design utilizing a power efficient circuit topology (Figure 2), and
by power management software controlling the module’s power saving mode.
Baseband Processor
Switching
Step-Down
u-blox LISA-C2 series
and FW75-C200
42 µF
VCC
VSIM
V_INT
2 x 3G Power Amplifier(s)
Linear
LDO
Linear
LDO
Switching
Step-Down
Linear
LDO
Linear
LDO
Linear
LDO
I/O
EBU
CORE
Analog
SIM
RTC
NOR Flash
DDR SRAM
RF Transceiver
Memory
Power Management Unit
4.7 µF
2.2 µF
VCC
VCC
Figure 2: Power management simplified block diagram
Pins with supply function are described in Table 5.
