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PQ1U381M2ZPH

PQ1U381M2ZPH Description

The PQ1U381M2ZPH is a linear regulator designed for efficient power management in a variety of electronic applications. Manufactured by Sharp Microelectronics, this IC offers a fixed output voltage of 3.8V and a maximum output current of 150mA. It is housed in a compact SOT23-5 package, making it suitable for surface mount applications. The regulator is designed to operate with an input voltage range up to 16V, ensuring compatibility with a wide range of power sources. Despite its small size, the PQ1U381M2ZPH boasts a low quiescent current of 200 µA, which is ideal for battery-operated devices and other low-power applications.

PQ1U381M2ZPH Features

• Fixed Output Voltage: The PQ1U381M2ZPH provides a stable 3.8V output voltage, ensuring consistent power delivery to connected devices.
• High PSRR: With a power supply rejection ratio (PSRR) of 70dB at 400Hz, the regulator effectively filters out noise from the input power supply, resulting in cleaner output voltage.
• Low Dropout Voltage: The maximum dropout voltage of 0.4V at 150mA ensures high efficiency, even when the input voltage is close to the output voltage.
• Protection Features: The regulator includes over-current and over-temperature protection, safeguarding both the IC and connected components from damage.
• Enable Control: The enable feature allows for dynamic control of the regulator's operation, providing additional flexibility in power management.
• Moisture Sensitivity Level: With an MSL rating of 1 (Unlimited), the PQ1U381M2ZPH is suitable for a wide range of environmental conditions without requiring special handling.

PQ1U381M2ZPH Applications

The PQ1U381M2ZPH is ideal for applications requiring a stable and efficient power supply. Its low quiescent current and high PSRR make it particularly suitable for battery-operated devices, where power efficiency and noise reduction are critical. The regulator's compact size and surface mount package make it a perfect fit for space-constrained designs, such as portable electronics, wearable devices, and IoT sensors. Additionally, its over-current and over-temperature protection features make it a reliable choice for applications where robustness and reliability are paramount.

Conclusion of PQ1U381M2ZPH

The PQ1U381M2ZPH from Sharp Microelectronics is a high-performance linear regulator that offers a compelling combination of efficiency, stability, and protection features. Its low dropout voltage and high PSRR ensure optimal performance in a wide range of applications, while its compact SOT23-5 package and surface mount design make it easy to integrate into modern electronic devices. Despite its obsolete status, the PQ1U381M2ZPH remains a reliable choice for designers seeking a robust and efficient power management solution.