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CLM920_NC3_LTE Module hardware manual
Shanghai Yuge Information Technology co., LTD
- 27 -
Figure 3-4 LDO linear power supply reference circuit
Figure 3-5 DC switching power supply reference circuit
Figure 3-6 PMOS tube control power switch reference circuit
To prevent damage to the module from surges and overvoltages, it is recommended to
connect a 5.1V/500mW Zener diode to the VBAT pin of the module.