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PQ1U351M2ZPH

PQ1U351M2ZPH Description

The PQ1U351M2ZPH is a linear regulator IC designed by Sharp Microelectronics, offering a fixed output voltage of 3.5V and a maximum output current of 150mA. This device is housed in a compact SOT23-5 package, making it suitable for surface-mount applications. It features a maximum input voltage of 16V and a dropout voltage of 0.4V at 150mA, ensuring efficient operation even at lower input-to-output voltage differentials. The regulator includes protection features such as over-current and over-temperature protection, enhancing its reliability and safety in various electronic systems. Additionally, it offers an enable control feature, allowing for precise control over the regulator's operation. Despite being marked as obsolete, the PQ1U351M2ZPH remains a viable option for specific applications due to its robust performance and feature set.

PQ1U351M2ZPH Features

• Fixed Output Voltage: Provides a stable 3.5V output, ideal for applications requiring a consistent power supply.
• High Output Current: Supports up to 150mA, suitable for powering a variety of electronic components and devices.
• Low Dropout Voltage: A maximum dropout voltage of 0.4V at 150mA ensures efficient operation, even when the input voltage is close to the output voltage.
• Over-Current and Over-Temperature Protection: These features safeguard the device and connected circuits from damage due to excessive current or temperature.
• Enable Control: Allows for precise control over the regulator's operation, enabling or disabling it as needed.
• Compact SOT23-5 Package: Suitable for surface-mount applications, making it ideal for space-constrained designs.
• High PSRR: A power supply rejection ratio of 70dB at 400Hz ensures minimal noise and ripple in the output voltage, contributing to high performance in sensitive applications.
• Low Quiescent Current: Consumes only 200 µA in quiescent mode, minimizing power loss and extending battery life in portable devices.

PQ1U351M2ZPH Applications

The PQ1U351M2ZPH is well-suited for a variety of applications where a stable and efficient power supply is crucial. Its fixed 3.5V output and 150mA current capability make it ideal for powering microcontrollers, sensors, and other low-power electronic devices. The low dropout voltage ensures that it can operate efficiently even with a small difference between the input and output voltages, making it suitable for battery-powered applications where the input voltage may vary. The compact SOT23-5 package and surface-mount compatibility make it a perfect fit for space-constrained designs, such as wearable devices, IoT modules, and portable electronics. Additionally, its high PSRR and low quiescent current make it suitable for applications requiring low noise and minimal power consumption, such as precision analog circuits and medical devices.

Conclusion of PQ1U351M2ZPH

The PQ1U351M2ZPH is a robust linear regulator IC that offers a combination of high performance and reliability. Its fixed 3.5V output and 150mA current capability, coupled with low dropout voltage and high PSRR, make it an excellent choice for a wide range of applications. The inclusion of over-current and over-temperature protection features ensures that it can operate safely in various conditions. Despite being marked as obsolete, the PQ1U351M2ZPH remains a valuable option for designers looking for a compact, efficient, and reliable power management solution. Its compact SOT23-5 package and surface-mount compatibility further enhance its appeal for modern electronic designs.