LT3485EDD-3#PBF - A Compact, Efficient Boost Converter

The LT3485EDD-3#PBF is a versatile and efficient boost converter integrated circuit from Linear Technology, designed to provide a compact power management solution for a wide range of applications. This particular model is part of the LT3485 series, which is known for its low quiescent current and integrated features that reduce the need for external components.

Key Features

• Adjustable Output Voltage: The LT3485EDD-3#PBF allows for an adjustable output voltage, which can be set via external resistors. This flexibility makes it suitable for various applications that require different voltage levels.
• Internal Power Switch: It incorporates a high-voltage, 350mA, 40V internal power switch, providing a compact solution without the need for an external MOSFET.
• Low Quiescent Current: The device features a low quiescent current of only 25μA, which is ideal for battery-powered and energy-sensitive applications where power efficiency is crucial.
• Integrated Soft-Start Function: The soft-start function limits inrush current during startup, which can prevent system overload and reduce stress on the power source.
• Thermal Protection: Built-in thermal shutdown protection ensures that the device operates within safe temperature limits, enhancing system reliability.

Applications

The LT3485EDD-3#PBF is suitable for a variety of applications, including but not limited to:

• Portable Power Devices
• LED Driver Circuits
• Battery-Powered Equipment
• Small LCD Displays
• Handheld Medical Devices

Package and Reliability

The device is offered in a 10-lead (3mm x 3mm) DFN package, which is highly compact and suitable for space-constrained applications. The LT3485EDD-3#PBF also features a wide temperature range, operating reliably over a temperature range of -40°C to 85°C, ensuring performance across various environmental conditions.

With its combination of efficiency, flexibility, and compact size, the LT3485EDD-3#PBF from Linear Technology is an excellent choice for designers looking to optimize their power management systems while minimizing space and component count.