Analog Devices Inc.

LTC3620EDC-1

LTC3620EDC-1 Description

The LTC3620EDC-1 is a highly efficient, synchronous rectified buck voltage regulator designed by Analog Inc Devices. This regulator is part of the DC Switching Voltage Regulators category and offers a fixed output voltage of 1.1V with a maximum output current of 15mA. The device operates over an input voltage range of 2.9V to 5.5V, making it suitable for a variety of low-voltage applications. The LTC3620EDC-1 features a switching frequency of 50kHz, which helps in achieving high efficiency while maintaining a small footprint. It is packaged in an 8-lead DFN package and is designed for surface mount applications. Despite its high performance, the LTC3620EDC-1 is now considered obsolete, with an ECCN classification of OBSOLETE and an HTSUS code of 0000.00.0000. The device has a moisture sensitivity level (MSL) of 1, indicating it is not sensitive to moisture and can be stored indefinitely.

LTC3620EDC-1 Features

• Synchronous Rectification: The LTC3620EDC-1 employs synchronous rectification, which significantly improves efficiency compared to traditional diode-based rectification. This feature is particularly beneficial in low-voltage, high-current applications where power losses can be substantial.
• Fixed Output Voltage: The regulator provides a fixed output voltage of 1.1V, ensuring stable power delivery to sensitive electronic components. This fixed output configuration simplifies design and eliminates the need for external voltage-setting resistors.
• Wide Input Voltage Range: With an input voltage range of 2.9V to 5.5V, the LTC3620EDC-1 is versatile and can operate from a variety of power sources, including batteries and low-voltage power supplies.
• High Efficiency: The combination of synchronous rectification and a 50kHz switching frequency allows the LTC3620EDC-1 to achieve high efficiency, minimizing power loss and heat generation.
• Surface Mount Packaging: The 8-lead DFN package is ideal for surface mount applications, enabling compact and reliable designs. This packaging also enhances thermal performance, which is crucial for maintaining efficiency and reliability in high-density circuits.
• Positive Output Configuration: The regulator delivers a positive output voltage, which is commonly required in many electronic systems, ensuring compatibility with a wide range of applications.

LTC3620EDC-1 Applications

The LTC3620EDC-1 is well-suited applications for that require a stable, low-voltage power supply with high efficiency. Some specific use cases include:

• Portable Electronics: The regulator's wide input voltage range and high efficiency make it ideal for battery-powered devices such as smartphones, tablets, and wearable technology. It can efficiently convert battery voltage to the required 1.1V level for powering sensitive components.
• Embedded Systems: In embedded systems where space is limited and power efficiency is crucial, the LTC3620EDC-1's compact 8-lead DFN package and high performance make it a preferred choice. It can power microcontrollers, sensors, and other low-voltage components.
• Low-Power Communication Devices: The regulator's ability to deliver a stable 1.1V output with minimal power loss makes it suitable for low-power communication devices such as routers, modems, and IoT devices. It ensures reliable operation and extended battery life in these applications.

Conclusion of LTC3620EDC-1

The LTC3620EDC-1 is a highly efficient, synchronous rectified buck voltage regulator that offers a fixed 1.1V output with up to 15mA of current. Its wide input voltage range, high efficiency, and compact surface mount packaging make it an excellent choice for a variety of low-voltage applications. Although now obsolete, the LTC3620EDC-1 remains a reliable option for designers seeking a stable and efficient power solution. Its unique features, such as synchronous rectification and a fixed output configuration, provide significant advantages over similar models, ensuring optimal performance in portable electronics, embedded systems, and low-power communication devices.