PQ1R30

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

PMIC, or power management integrated circuits, are very important in the electronics field as they enable system designers to create efficient and reliable systems. One component of PMIC is the voltage regulator, which can control the output voltage of an integrated circuit to supply a desired amount of power to a component within a system. A specific type of voltage regulator – the linear regulator – is used most often. This article will detail the application field and working principle of the PQ1R30 linear voltage regulator.

The PQ1R30 is a type of medium-current-load regulator with a 3-pin package and its input voltage range is up to 36 volts. It is highly reliable and accurate with low dropout voltage and low noise. Additionally, some PQ1R30 regulators can support remote output loading and regulation, providing further control and flexibility. These features make the PQ1R30 voltage regulator well-suited for a variety of applications, including power boards and logic boards, portable medical device applications, battery-powered devices, and gaming systems.

Before diving into the working principle behind the PQ1R30 voltage regulator, it is important to understand a salient idea about voltage regulation in a linear regulator: input voltage always needs to be higher than regulated output voltage. When this is the case, a linear regulator will convert excess input voltage into heat to maintain the desired regulated output voltage. This conversion of energy is possible through the simpler linear circuits in the regulator, as they are able to resist current changes while still allowing the regulator to measure the difference between output voltage and input voltage.

The PQ1R30 voltage regulator uses this process of converting excess input voltage into heat, but with a twist. A low internal resistance of the regulator helps minimize energy losses and the heat generated by the regulator. With the low internal resistance, input voltage can be regulated down to extremely small amounts, such as 0.2V, with stable output voltage and high efficiency. This low-resistance also makes the PQ1R30 voltage regulator suitable for regulating input voltages of up to 36V without significant reductions in output power.

The internal circuit of the PQ1R30 linear voltage regulator works to ensure that the output voltage does not exceed the regulation voltage, often known as the “over-regulation.” This is done through the use of an internal error amplifier and current sink circuit, which constantly monitors the output voltage and adjusts the current being supplied to the regulator’s output terminals accordingly. This adjustment keeps the output voltage in check and keeps it lower than the input voltage.

In addition to overregulation protection, the internal circuit of the PQ1R30 voltage regulator also provides over-current protection, which protects the regulator from potential damage due to excessive current passing through it. It does this by sensing the voltage drop across the regulator and cutting off the current supply if the drop is too high. This keeps the regulator from being damaged due to excessive current.

As can be seen, the application field and working principle of the PQ1R30 voltage regulator are both unique and useful. The regulator’s internal error amplifier and current sink circuit allow the regulator to provide precise and stable output voltages even when the input voltage is highly variable. Furthermore, the low internal resistance of the regulator helps to minimize energy losses and the heat generated by the regulator. Thus, these characteristics make the PQ1R30 an effective and efficient voltage regulator for a variety of different applications.

The specific data is subject to PDF, and the above content is for reference