Smart Module Series
SC606T Series Hardware Design
SC606T_Series_Hardware_Design 42 / 116
being 3.0 V;
⚫
When powered by VBAT, the RTC has an error rate of 50 ppm, while when powered by VRTC, the
RTC deviation is about 200 ppm;
⚫
If a rechargeable battery is used, the ESR of the battery should be less than 2 k
Ω, and it is
recommended to use the battery MS621FE FL11E from Seiko.
3.7. Power Output
The module can output regulated voltages for peripheral circuits. During application, it is recommended to
use parallel capacitors (33 pF and 10 pF) on the circuits to suppress high-frequency noise.
Table 8: Power Description
Pin Name
Default Voltage (V)
Drive Current (mA)
Comment
LDO5_1P8
1.8
20
So long as the module is
powered on, the pin retains
its power.
LDO6_1P8
1.8
300
LDO10_2P8
2.8
150
LDO17_2P85
2.85
300
LDO2_1P1
1.1
1200
LDO22_2P8
2.8
150
LDO23_1P2
1.2
600
SD_LDO12
1.8/2.95
50
SD_LDO11
2.95
800
USIM1_VDD
1.8/2.95
50
USIM2_VDD
1.8/2.95
50
VPH_PWR
Equal to VBAT voltage
1000
So long as the module is
powered on, the pin retains
its power.