Gosuncn Technology Group Co. Ltd. GM500U1A Manual De Usuario
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23
GM500_U1A
Hardware Development Guide
Figure 2–3 Reference circuit of DC-DC
Option 2:LDO
The over-current capability of LDO is above 2.5A. This LDO is apply to this situation: input and output voltage
difference is small.
The reference power supply circuit design with LDO is shown as figure below:
Figure 2–4 Reference circuit of LDO
2.5. T
URN ON
S
CENARIOS
When MCU can provide high/low level pulse with adjustable length, the reference circuit to turn-on/off
module is as shown in the following figure below.