Product Info

Smart Module Series
SC200R Series Hardware Design
SC200R_Series_Hardware_Design 35 / 125
1.
1)
When the module is in sleep mode, LDO6_1V8 wakes up periodically or randomly. Considering the
actual requirement for power consumption during sleep mode, you can use either LDO6_1V8 or an
external LDO for power supply. For lower power consumption, use an external LDO instead.
2.
2)
SC200R-WF does not support GNSS.
3.4. Power Supply
3.4.1. Power Supply Pins
SC200R series module provides two VBAT_RF pins and two VBAT_BB pins for connection with the
external power supply. The VBAT_RF pins are used for the RF part of the module and the VBAT_BB pins
are used for the baseband part of the module.
3.4.2. Decrease Voltage Drop
The power supply range of the module is 3.55–4.2 V, and the recommended value is 3.8 V. The power
supply performance, such as load capacity, voltage ripple, etc. directly influences the module’s
performance and stability. Under ultimate conditions, the transient peak current of the module may surge
up to 3 A. If the supply voltage is not enough, there will be voltage drops, and if the voltage drops below
3.1 V, the module will be turned off automatically. Therefore, make sure the input voltage never drops
below 3.1 V.
Figure 2: Voltage Drop Sample
RESERVED
150–152, 173–175, 178–180, 183, 184, 192, 232, 242, 246,
249, 252–254, 257, 263, 270
Keep these pins
open.
NOTE