Linear Technology's LT1930AES5: A Compact, High-Efficiency Step-Up DC/DC Converter

The LT1930AES5 from Linear Technology is a robust, high-efficiency step-up DC/DC converter that is well-suited for applications requiring a compact power solution. This device is part of Linear Technology's line of switching regulators, designed to offer efficient power conversion for a wide range of voltages. The LT1930AES5 operates from an input voltage range of 2.6V to 16V, making it versatile for both single-cell Li-Ion applications and multi-cell battery configurations.

Key Features

• Adjustable Switching Frequency: The LT1930AES5 offers an adjustable switching frequency from 1.2MHz to 2.2MHz, which allows for flexibility in choosing external components. This high-frequency operation enables the use of small, low-cost capacitors and inductors, reducing the overall footprint of the power supply on the PCB.
• High Output Voltage: It can deliver output voltages up to 34V, providing ample headroom for driving LEDs, OLED displays, and other high-voltage applications.
• Output Current: The device can deliver up to 600mA of output current (at 5V), ensuring sufficient power for a variety of uses.
• High Efficiency: The LT1930AES5 boasts efficiencies up to 90%, which helps to minimize heat generation and improves battery life in portable applications.
• Low Shutdown Current: It features a low shutdown current of under 1µA, which is ideal for battery-powered applications where power conservation is critical.
• Protection Features: The converter includes internal soft-start, a current limit, and thermal shutdown features, providing essential protection for your circuitry.

Applications

The LT1930AES5 is an excellent choice for a variety of applications that require a small, efficient, and high-voltage output power supply. It is commonly used in:

• Portable Instruments
• Medical Diagnostic Equipment
• LED and OLED Lighting
• GPS Receivers
• Small LCD Displays

With its small SOT-23 package, the LT1930AES5 is particularly well-suited for space-constrained applications. Whether you're designing a handheld device or a portable sensor, the LT1930AES5 provides a reliable and efficient power conversion solution that can be easily integrated into your design.

Conclusion

The LT1930AES5 step-up DC/DC converter from Linear Technology is a high-performance solution that combines efficiency, versatility, and protection features in a tiny package. It stands out as a top choice for designers looking to maximize power density and extend battery life in their portable and high-voltage applications.