PQ025Y3H3ZZH

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PQ025Y3H3ZZH is a three-terminal, adjustable linear voltage regulator integrated circuit. It is intended to supply a local area 2.5 V bus voltage and minimize power losses in off-line storage applications. It is well suited to the application of a steady reference in the range of VDD = 1.8 V to 5.5 V, making it ideal for many system level voltage rail applications. The PQ025Y3H3ZZH has a wide input voltage range and a low quiescent current of less than 10 uA. It operates at a temperature range of -40°C to +85°C.

The function of the PQ025Y3H3ZZH can be broken down into three stages. First, the voltage regulator stabilizes the input voltage by dissipating excess voltage, thus keeping the output voltage within a specified range. Second, the regulator adjusts the output voltage based on the amount of input voltage applied. Finally, the regulator maintains the output voltage at a steady level, regardless of any changes in the input voltage.

The PQ025Y3H3ZZH block diagram is shown below. It consists of an error amplifier, a voltage reference, and a power supply switch. The error amplifier compares the voltage output with a voltage reference and adjusts the internal PWM-controlled output switch accordingly. This allows the regulator to maintain a steady output voltage independent of the input voltage.

The PQ025Y3H3ZZH provides excellent power efficiency, making it ideal for applications such as on-line storage, laptop, automotive electronics, LED lighting, and telecommunication equipment. Its 3-pin SOT-23 package reduces heat dissipation and provides a small footprint.

In conclusion, the PQ025Y3H3ZZH is an ideal linear voltage regulator integrated circuit for a variety of applications. It offers a wide input voltage range, low quiescent current, and adjustable output voltage. Additionally, its low power dissipation and small package size make it a suitable choice for many system level applications.

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