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AS1351

AS1351 Description

The AS1351 is a high-performance, dual-channel linear regulator designed for a wide range of power management applications. Manufactured by ams OSRAM, this IC offers programmable output voltage capabilities, making it highly versatile for various electronic systems. With a maximum input voltage of 5.5V and a quiescent current of just 200 µA, the AS1351 ensures efficient power management and minimal energy loss.

Each of the two regulators can deliver up to 200mA of output current, providing ample power for demanding applications. The output voltage range is programmable from 1.8V to 3.3V, allowing for precise control over the power supply. The AS1351 features a positive output configuration, ensuring stable and reliable power delivery.

The device is housed in a surface-mount 12QFN package, making it suitable for compact designs. Its moisture sensitivity level (MSL) is rated at 1 (unlimited), indicating excellent resistance to moisture and suitability for a wide range of operating environments. The AS1351 also complies with RoHS and REACH standards, ensuring environmental safety and regulatory compliance.

AS1351 Features

• Programmable Output Voltage: The AS1351 offers programmable output voltage from 1.8V to 3.3V, providing flexibility to meet specific application requirements.
• Dual-Channel Regulation: With two independent regulators, each capable of delivering up to 200mA, the AS1351 can power multiple circuits or devices simultaneously.
• High Efficiency: The low quiescent current of 200 µA ensures minimal power consumption during operation, enhancing overall system efficiency.
• Enhanced Protection Features: The AS1351 includes over-current protection, over-temperature protection, and soft start functionality to safeguard the device and connected circuits from damage.
• Enable Control: The enable feature allows for dynamic control of the regulator's operation, enabling power-saving modes and precise control over the power supply.
• High PSRR: The AS1351 boasts a power supply rejection ratio (PSRR) of 70dB to 40dB across a frequency range of 1kHz to 100kHz, ensuring high stability and low noise in the output voltage.
• Compliance and Safety: The AS1351 is RoHS compliant and REACH unaffected, making it suitable for environmentally conscious designs. The moisture sensitivity level of 1 (unlimited) ensures robustness in various operating conditions.

AS1351 Applications

The AS1351 is ideal for a variety of applications where precise and efficient power management is crucial. Some specific use cases include:

• Consumer Electronics: Ideal for powering portable devices, smartphones, tablets, and other consumer electronics that require stable and efficient power supply.
• Industrial Systems: Suitable for industrial control systems, sensors, and actuators that demand reliable and programmable power management.
• Telecommunications: Can be used in base stations, routers, and other telecom equipment where multiple power rails are required.
• Medical Devices: Applicable in medical equipment such as diagnostic tools and monitoring devices that need precise and stable power supply.
• Automotive Electronics: Ideal for automotive applications such as infotainment systems, electronic control units (ECUs), and advanced driver-assistance systems (ADAS).

Conclusion of AS1351

The AS1351 by ams OSRAM is a versatile and high-performance dual-channel linear regulator that offers programmable output voltage, high efficiency, and robust protection features. Its compact surface-mount package and compliance with environmental standards make it suitable for a wide range of applications. The AS1351's ability to deliver up to 200mA per channel, combined with its low quiescent current and high PSRR, ensures stable and efficient power management. Whether used in consumer electronics, industrial systems, or automotive applications, the AS1351 provides a reliable and efficient solution for power management needs.