I54 10 DB LDO 800MA DC 5V–3.3V Leléptető tápegység modul - AMS1117 modul AMS1117-3.3 modul
I54 10PCS LDO 800MA DC 5V to 3.3V Step-Down Power Supply Module -AMS1117 module AMS1117-3.3 module
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For example:
like this

Description:
 
1: input: 4.5 V DC - 7 V (input voltage must be wining the to the output voltage high 1 V above.)
2: the output: 3.3 V, 800 mA (the load current can 't wining 800 mA)
3: PCB size: 8.6 * 12.3 mm
 
Attention:
1: the Boost modules or buck module indicate the operating voltage, both Please donot exceed operating voltage, or it will be on easily!
2: the Boost module output voltage can only be greater than or equal to the input voltage, always be less than the input voltage.
3: Buck module input voltage must be who the output voltage of 1.5 V or 2 V, otherwise it can not output the enough power!
4: Automatic Adjustable Boost or Buck the module from the start voltage and limit the working voltage, both Please donot exceed them, or it will be on easily!
5: always reverse polarity, or it will be short circuit, or will be born easily!
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