Linear Technology's LT3582EUD: A Versatile Dual Output Boost/Inverting DC/DC Converter

The LT3582EUD from Linear Technology is a highly versatile and efficient dual output DC/DC converter that has been designed to cater to a wide range of applications requiring both positive and negative voltages. This compact and powerful integrated circuit is housed in a 16-lead QFN package, making it an ideal solution for space-constrained applications.

Key Features

• Adjustable Switching Frequency: The LT3582EUD offers an adjustable switching frequency from 200kHz to 2.5MHz, which allows designers to optimize the performance based on their specific needs. A higher switching frequency can be used to reduce the size of external components, while a lower frequency can be used to improve efficiency.
• Integrated Boost and Inverting Converters: This device integrates both boost and inverting converters, which can generate positive and negative outputs from a single input voltage. The positive output voltage can be set between 3.3V and 12.9V, while the negative output voltage can be set from -1.2V to -13.5V, providing great flexibility for various design requirements.
• Wide Input Voltage Range: With an input voltage range of 2.55V to 14V, the LT3582EUD is suitable for a variety of power sources, including single-cell Li-Ion batteries, multi-cell alkaline batteries, and wall adapters.
• Low Quiescent Current: The device features a low quiescent current of 55µA, which is beneficial for battery-powered applications where power efficiency is crucial.

Applications

The LT3582EUD is well-suited for a range of applications, including but not limited to:

• Bipolar amplifiers
• Data acquisition systems
• Portable instruments
• Medical devices
• Industrial controls

With its built-in soft-start function, the LT3582EUD can effectively manage the inrush current during startup, enhancing the reliability of the system. Additionally, the device includes features such as over-temperature protection and a power good flag, which provides an extra layer of security for sensitive applications.

In conclusion, the LT3582EUD from Linear Technology is an efficient and adaptable solution for generating dual outputs in a compact form factor. Its comprehensive feature set and robust design make it an excellent choice for designers looking to simplify their power supply designs while maintaining high performance and reliability.