User Manual

MeiG_SLM550_Hardware Design Manual
MeiG Smart Technology Co., Ltd 43/89
Rechargeable battery powered:
Figure 19 Rechargeable Battery Powers RTC
Note:
This VCOIN power supply is 2.0-3.25V, typical typically 3.0V
4.4 Power Output
The SLM550 has multiple power outputs. For LCD, Camera, touch panel, etc. In application, it is
recommended to add parallel 33PF and 10PF capacitors to each power supply to effectively remove
high frequency interference.
Table 5 Power Description
Signal Default Voltage(V) Drive Current(mA)
VREG_L15_1P8 1.8 100
VREG_L17_2P8 2.8 150
VREG_L21_SDC 2.95 600
VREG_L4_SDC 2.95 50
VREG_L18_UIM1 1.8/2.95 55
VREG_L19_UIM2 1.8/2.95 55
VREG_L20_AVDD 2.8 55