Linear Technology LTC3421EUF#TR - High Efficiency, 3MHz Synchronous Step-Up DC/DC Converter

The LTC3421EUF#TR from Linear Technology is a high-performance, synchronous step-up DC/DC converter that provides a compact and efficient power solution for a wide range of applications. Its high switching frequency of up to 3MHz allows for the use of small surface-mount inductors and capacitors, reducing the overall footprint and cost of the power supply design.

Key Features:

• High Frequency Operation: Up to 3MHz switching frequency enables the use of tiny, low-cost capacitors and inductors.
• High Efficiency: Integrated synchronous rectification improves efficiency, especially beneficial when stepping up from low input voltages.
• Wide Input Voltage Range: Operates from an input voltage range of 1.5V to 5.5V, suitable for single-cell Li-Ion, multi-cell alkaline, or NiMH applications.
• Adjustable Output Voltage: The output voltage can be set from 1.5V to 5.25V to accommodate a variety of loads and applications.
• Low Quiescent Current: Ideal for battery-powered applications with its low no-load quiescent current.
• Burst Mode Operation: Provides high efficiency at light loads.
• Power Good Output: Offers a power good signal when the output voltage is within regulation.
• Thermal Protection: Built-in thermal shutdown ensures the device operates within safe temperature limits.

Applications:

The LTC3421EUF#TR is versatile for use in portable devices where efficient power conversion is critical. It is ideal for:

• Handheld Instruments
• Portable Media Players
• Medical Devices
• Wireless and DSL Modems
• GPS Devices

With its high frequency and synchronous operation, the LTC3421EUF#TR minimizes external component size and helps achieve a compact power supply design without sacrificing performance. Whether you're designing for battery life, space-constrained applications, or simply need a reliable power source, the LTC3421EUF#TR is an excellent choice for your step-up DC/DC conversion needs.

Package and Availability:

The LTC3421EUF#TR is available in a 16-lead QFN (4mm × 4mm) package, which is RoHS compliant and suitable for automated assembly processes. It is also available in tape and reel format for high-volume production requirements.