LTC3526LEDC - High Efficiency Synchronous Step-Up DC/DC Converter

The LTC3526LEDC from Linear Technology is a high-performance, synchronous step-up DC/DC converter designed to provide a compact and efficient power solution for portable electronics. This integrated circuit is specifically tailored to convert a low voltage input to a higher voltage output, which is essential for devices that require a stable power source from a single-cell lithium-ion battery or multiple alkaline/NiMH cells.

Key Features

• Adjustable Output Voltage: The LTC3526LEDC allows for an adjustable output voltage ranging from 2.5V to 5.25V, which can be set by an external resistor divider. This flexibility makes it suitable for powering a variety of devices.
• High Efficiency: With its synchronous rectification and low quiescent current, the LTC3526LEDC achieves high efficiency levels, which is crucial for extending battery life in portable applications.
• Power Saving Mode: The device includes a Burst Mode® operation that reduces quiescent current to only 7µA during light load conditions, further conserving power when full output power is not needed.
• Startup at Low Input Voltage: The LTC3526LEDC can start up from an input voltage as low as 0.85V, making it ideal for applications where input power may be limited.
• Integrated Soft-Start Function: The soft-start feature limits inrush current during startup, providing a smooth transition to regulation and reducing stress on the input power source.

Applications

The LTC3526LEDC is well-suited for a wide array of applications, including but not limited to:

• Portable Medical Devices
• Wireless Headsets
• MP3 Players
• Handheld Instruments
• Backup Power Supplies

Package and Reliability

This converter is available in a compact, 6-lead ThinSOT package, ensuring a minimal footprint on the PCB and making it an excellent choice for space-constrained applications. The LTC3526LEDC also features over-temperature and short-circuit protection, enhancing the reliability and safety of the system it powers.

In summary, the LTC3526LEDC from Linear Technology is a versatile, efficient, and reliable solution for stepping up low voltages to higher levels in portable electronic devices, ensuring optimal performance and extended battery life.