The ultra-end regulator is generally understood in this way, and the low-voltage differential linear regulator has higher performance, lower PCB area occupation and lower power consumption than the commonly used three-end regulator, and is widely used in mobile phones and other portable products. In this paper, the structure and performance characteristics of LDO devices are introduced, and a reference design for reference is proposed.
Low-voltage differential linear voltage regulator (LDO) is a new generation of integrated circuit regulators. The biggest difference between LDO and three-terminal voltage regulator is that LDO is a micro-system-on-chip (SOC) with low self-power consumption. LDO can be divided into OmniPower, MicroPower and NanoPower products according to its static current consumption. The static current of OmniPowerLDO is between 100uA1mA and that of MicroPowerLDO is between 10uA100uA. The static current of the NanoPowerLDO is less than 10 UA, and typically only 1uA.
OmniPowerLDO is a new linear voltage regulator with large static current tip but better performance than three-terminal voltage regulator, suitable for all electronic products using AC\/DC fixed power supply, because of its large demand, large production, and very low production cost, the price is very cheap;
MicroPowerLDO is a low-voltage differential linear regulator with low power consumption, very low proprietary noise and high power ripple suppression (PSRR), with fast enable control, give it a high (or low) level to make it work or sleep, with the best performance\/power ratio. It must be used in the mobile phone power supply that requires low noise;
NanoPowerLDO is a low-voltage differential linear regulator with micro-power consumption and very low static current, which is very accurate and is most suitable for portable electronic and electrical products that need to save power.
An overterminal regulator is an electronic component used to stabilize a voltage output.
It can keep the output voltage constant when the input voltage changes. This regulator works by comparing the output voltage with the reference voltage through a feedback circuit, and then adjusting the output of the controller to keep the output voltage stable.
Overterminal regulators are usually used in circuits that require high-precision voltage output, such as precision instruments, computers, etc.
The superregulator is an electronic component that can control the fluctuation range of the input voltage within a certain range and the output voltage is stable.
This type of regulator is characterized by the ability to provide a higher or lower voltage at the output than the input voltage, so it is called a \"superterminal\" regulator.
The principle of the superregulator is to compare the output voltage with the reference voltage through the negative feedback control circuit, and adjust the working state of the control element according to the comparison results, so that the output voltage remains stable.
Superregulator is widely used in electronic equipment, such as computers, communication equipment, audio equipment, etc., can improve the stability and reliability of equipment.
In practical applications, the superregulator can also be adjusted as needed to adapt to different input and output voltage requirements.
At the same time, the safety performance of the regulator can be improved by adding a protection circuit to prevent overvoltage, overcurrent and other faults.