Linear Technology's LT1619IS8: Step-Up DC/DC Converter

The LT1619IS8 is a compact, high-frequency step-up DC/DC converter from Linear Technology, designed to meet the needs of a wide range of applications requiring efficient voltage boost capabilities. This versatile component is housed in an 8-lead SOIC package, making it a great choice for space-constrained applications.

Key Features

• Wide Input Voltage Range: The LT1619IS8 operates from an input voltage range of 1.1V to 15V, making it suitable for single-cell Li-Ion batteries, multi-cell alkaline or NiMH batteries, and other standard power supplies.
• Adjustable Output Voltage: The output voltage can be set from 1.25V to as high as the switch limit, allowing for a wide range of output voltages to suit various applications.
• High Switching Frequency: With a switching frequency of 1.4MHz, the LT1619IS8 allows for the use of small, low-cost capacitors and inductors, reducing the overall footprint and cost of the power supply design.
• Low Quiescent Current: The device features a low quiescent current of only 100μA, which is ideal for battery-powered applications where power efficiency is crucial.
• Soft-Start Function: The built-in soft-start function limits inrush current during startup, providing a controlled voltage ramp that prevents system stress.

Applications

The LT1619IS8 is a versatile converter that can be used in a variety of applications, including:

• Portable Electronics
• GPS Devices
• Medical Equipment
• Wireless Modems
• Handheld Instruments

Reliability and Performance

Linear Technology is well-known for its commitment to reliability and performance, and the LT1619IS8 is no exception. This step-up converter offers thermal protection and can operate over a temperature range of -40°C to 85°C, ensuring stable performance in a variety of environments.

With its combination of features and performance, the LT1619IS8 is an excellent choice for designers looking to improve power efficiency and save space in their next project.