The output voltage of ams1117 is not enough. The original output is 3.3, but the output is 2.

rzp

The output voltage of ams1117 is not enough. The original output is 3.3, but the output is 2. [Copy link]

The ams1117 power supply converts the voltage to 3.3v, but the output is only 2.7v. The input current is 4.6mA, and the output is 4.8mA.

qwqwqw2088

1117 minimum input voltage 4.75V

maychang

AMS1117 requires a voltage difference of at least 1V. To output 3.3V, the input must be at least 4.3V or even higher. The minimum input voltage is related to the output current. The larger the output current, the larger the chip input-output voltage difference is required.

wangerxian

The voltage drop requirement of AMS1117 seems to be quite large. Let's change the LDO

beyond_笑谈

The AMS1117 specification has a Vdrop specification definition. 3.8V is regulated to 3.3V, which is not suitable for this chip