LT1931AIS5#TRMPBF - High Efficiency DC/DC Converter

The LT1931AIS5#TRMPBF from Linear Technology is a highly efficient, fixed frequency, step-up DC/DC converter that is designed to operate as a boost power supply. This compact component is part of the LT1931 series and is packed in a small SOT-23 package, making it ideal for space-constrained applications.

Key Features:

• High Voltage Capability: The LT1931 can generate output voltages up to 34V from an input voltage range of 1.2V to 16V, providing flexibility for a variety of power supply designs.
• High Switching Frequency: With a switching frequency of 1.2MHz, the LT1931 allows for the use of small, low-cost capacitors and inductors, reducing the overall footprint and cost of the power supply solution.
• Low Quiescent Current: The device features a quiescent current of only 2.5mA, which improves battery life in portable applications.
• High Efficiency: The LT1931 series offers high efficiencies, up to 86%, which is beneficial for reducing power loss and heat generation in the system.
• Internal 2A Switch: The integrated 2A, 36V switch enables the LT1931 to deliver high power outputs without the need for external FETs, simplifying the design and saving board space.
• Stable with Ceramic Capacitors: The device remains stable with ceramic output capacitors, which are smaller, have lower ESR, and are more reliable over temperature compared to electrolytic capacitors.
• Soft-Start Function: The built-in soft-start function limits inrush current during startup, which can prevent system issues and extend component life.
• Thermal Protection: The LT1931 includes thermal shutdown protection to safeguard the device under high temperature operating conditions.

Applications:

The LT1931AIS5#TRMPBF is suitable for a wide range of applications, including but not limited to:

• Portable Battery-Powered Equipment
• Medical Diagnostic Equipment
• LED Drivers
• Telecom Power Supplies
• Local 5V to 12V or 24V Conversion

This high-performance DC/DC converter from Linear Technology provides a compact, efficient, and versatile solution for various high-voltage and high-power applications where space and power efficiency are critical.