STMicroelectronics

ST1S09PUR

ST1S09PUR Description

The ST1S09PUR is a high-performance, adjustable output DC switching voltage regulator designed and manufactured by STMicroelectronics. This 6DFN-packaged IC is part of the ST1S09 series, offering a wide range of technical specifications and performance benefits. With an adjustable output voltage ranging from 0.8V to 5.22V, it is capable of delivering a continuous output current of up to 2A. The ST1S09PUR features a buck topology, synchronous rectification, and a switching frequency of 1.5MHz, ensuring efficient power conversion and minimal power loss.

ST1S09PUR Features

• Adjustable Output Voltage: The ST1S09PUR offers an adjustable output voltage range from 0.8V to 5.22V, providing flexibility in various applications.
• High Output Current: Capable of delivering a continuous output current of up to 2A, making it suitable for high-current applications.
• Buck Topology: Employs a buck topology for efficient power conversion and minimal power loss.
• Synchronous Rectification: Enhances efficiency by reducing conduction losses in the rectification stage.
• 1.5MHz Switching Frequency: Allows for smaller external components and improved transient response.
• Adjustable Input Voltage Range: Accepts an input voltage range of 2.7V to 6V, making it suitable for a wide range of power sources.
• Positive Output Configuration: Provides a positive output voltage, which is ideal for most electronic applications.
• RoHS Compliance: Compliant with RoHS3 standards, ensuring environmental safety and regulatory compliance.
• REACH Unaffected: Not affected by REACH regulations, ensuring uninterrupted supply and use.
• Moisture Sensitivity Level (MSL) 1: Unaffected by moisture, allowing for unlimited storage time before reflow soldering.
• Surface Mount Packaging: Facilitates easy integration into surface-mount applications.

ST1S09PUR Applications

The ST1S09PUR is ideal for a wide range of applications, including:

1. Portable Electronics: Due to its small form factor and high efficiency, it is suitable for powering portable devices such as smartphones, tablets, and wearables.
2. Industrial Control Systems: Its ability to handle high currents and provide stable output voltage makes it suitable for industrial control systems and automation equipment.
3. Telecommunications: Can be used in power supply units for telecommunications equipment, ensuring reliable power delivery.
4. Automotive Applications: Its wide input voltage range and high efficiency make it suitable for automotive electronics, such as infotainment systems and power management units.

Conclusion of ST1S09PUR

The ST1S09PUR is a versatile and high-performance DC switching voltage regulator that offers adjustable output voltage, high output current, and efficient power conversion. Its unique features, such as synchronous rectification and a 1.5MHz switching frequency, provide significant advantages over similar models. With its wide range of applications, the ST1S09PUR is an ideal choice for designers looking for a reliable and efficient power solution in various electronic devices.