Analog Devices Inc.

LT3667EUDD

LT3667EUDD Description

The LT3667EUDD is a triple-output power management IC (PMIC) designed by Analog Devices Inc. This versatile device integrates three independent buck regulators, providing a compact and efficient solution for a wide range of applications. The LT3667EUDD is housed in a surface-mount 24QFN package, making it suitable for space-constrained designs. Despite its small form factor, it offers robust performance and flexibility in power management.

LT3667EUDD Features

• Triple Outputs: The LT3667EUDD features three independent outputs, each capable of delivering different voltage and current combinations. Output 1 can provide 1.2V to 38.6V at up to 400mA, while Outputs 2 and 3 can deliver 0.8V to 38.6V at up to 200mA each. This flexibility allows it to power various components with different power requirements.
• Wide Input Voltage Range: The device supports an input voltage range of 1.6V to 45V, making it suitable for a variety of power sources, including batteries and DC supplies.
• High Switching Frequency: The LT3667EUDD operates at a switching frequency range of 243kHz to 2.2MHz. This high-frequency operation enables the use of smaller inductors and capacitors, reducing the overall footprint and cost of the power solution.
• Surface-Mount Package: The 24QFN package is ideal for surface-mount technology (SMT) assembly, facilitating automated manufacturing processes and ensuring high reliability in production.
• Moisture Sensitivity Level (MSL) 1: The LT3667EUDD has an MSL rating of 1, indicating it is suitable for unlimited exposure to ambient conditions, making it highly reliable in various environments.

LT3667EUDD Applications

The LT3667EUDD is well-suited for applications requiring multiple power rails with varying voltage and current requirements. Some specific use cases include:

• Consumer Electronics: Ideal for powering multiple components in devices such as smartphones, tablets, and laptops, where space is at a premium and multiple voltage levels are needed.
• Industrial Systems: Suitable for industrial control systems, where different sensors, actuators, and microcontrollers require independent power supplies.
• Automotive Electronics: Can be used in automotive applications to power various electronic control units (ECUs) and infotainment systems, providing reliable power management in harsh environments.
• Medical Devices: Useful in medical equipment where precise power control and multiple power rails are necessary for reliable operation.

Conclusion of LT3667EUDD

The LT3667EUDD from Analog Devices Inc. is a highly versatile and efficient power management IC, offering three independent outputs with a wide voltage and current range. Its high switching frequency and compact surface-mount package make it an excellent choice for space-constrained applications. Despite being marked as obsolete, the LT3667EUDD remains a reliable solution for applications requiring multiple power rails with different specifications. Its robust performance and flexibility continue to make it a valuable component in the power management landscape.