The reference voltage is a theoretically stable reference voltage that is not affected by any external factors and is compared or calculated with other voltages.
The output of such a chip is unstable in the first place, and the transfer function does not converge, let alone work normally. The stable power supply reference voltage Vref is provided from Vcc, which can ensure the stability of the power supply.
The reference source of the power supply is to provide oneStable, standard voltage source.
1, the problem you describe is roughly analyzed as ASM1117 did not install enough heat sink caused by ASM1117 working time is too long, and there is no timely heat dissipation, resulting in a short circuit inside the chip, thus dragging down the input voltage (programmer end).
2, this is A low-voltage differential linear regulator, the complete model AMS1117, this suffix with A on the figure is the adjustable voltage version. This voltage regulatorThe chip is not a partial door component, it is easy to buy, must replace the model, recommend ME6118A.
3, the voltage regulator chip, it is estimated that the load has a short circuit, or it has a problem.
4, the pressure difference is too big, the input 12, the output 3, the chip withstands 7, the power consumption is 2 times larger than the load, not only waste, but also hot, easy to burn, it is not recommended to use 12V, it is best to change 5V.
1, the power chip is the heart of the computer, complete the calculation, handle the task. The chip is actually a highly integrated circuit board or IC.
2, the power management chip can realize the switch, adjustment, monitoring and other functions of the power supply, and can also achieve fast charging, energy saving and other functions. Hunter Core offers various types of power management chips.
3, high efficiency: modern power chip has a high conversion efficiency, can effectively convert the input power into the output power, reduce energy loss, improve energy utilization. Low power consumption: The power chip can achieve low power consumption in standby mode, reduce energy waste, extend battery life, and improveBattery life of the equipment.
4, adjust the output voltage: the AC-DC switching power supply chip can adjust the level of the output voltage to ensure that it is consistent with the power demand and stable, so as to provide a constant direct current supply for various devices.
5, the power management chip is the chip responsible for the transformation, distribution, detection and other responsibilities of power management in the electronic equipment system. It is mainly responsible for identifying the CPU power supply amplitude, generating the corresponding short moment wave, and promoting the power output of the back-end circuit.
6, the power management chip is a chip used to manage the power supply, can