LTC1871IMS-1: High Efficiency, No RSENSE Boost Converter

The LTC1871IMS-1 is a versatile and efficient boost converter integrated circuit from Linear Technology, designed to offer high performance in a compact package. This step-up DC/DC converter is notable for its ability to provide high power output without the need for a sense resistor (RSENSE), thanks to its current mode control which simplifies the design and reduces system cost.

Key Features:

• Wide Input Voltage Range: The LTC1871IMS-1 operates from an input voltage range of 2.5V to 36V, making it suitable for a variety of applications, from single-cell batteries to industrial supplies.
• No RSENSE Operation: Eliminates the need for a sense resistor, optimizing efficiency and saving space on the PCB.
• Adjustable Switching Frequency: The switching frequency can be programmed between 100kHz to 1MHz or can be synchronized to an external clock, providing flexibility and allowing the optimization of efficiency and component size.
• High Efficiency: Capable of high efficiency, up to 96%, reducing heat generation and improving system reliability.
• Soft-Start Capability: Features a soft-start function to limit inrush current during startup, enhancing the longevity of the device and the overall system stability.
• Stable with Low ESR Capacitors: The LTC1871IMS-1 remains stable with ceramic and other low ESR output capacitors, which are smaller, more reliable, and have a longer life span than their electrolytic counterparts.

Applications:

The LTC1871IMS-1 is ideal for a variety of applications, including but not limited to:

• Portable devices powered by single-cell lithium-ion batteries
• Automotive power systems
• Industrial power supplies
• Telecommunications equipment
• Medical devices
• DC-DC power supply modules

With its robust feature set and ease of use, the LTC1871IMS-1 is an excellent choice for engineers and designers looking to create compact, high-efficiency power supply solutions. The device is available in a small, thermally efficient MSOP-10 package, providing a space-saving solution for a wide range of power conversion applications.