LTC1682CMS8#TR - High Efficiency, Low Noise Doubler Charge Pump

The LTC1682CMS8#TR is a high-performance charge pump voltage doubler from Linear Technology, designed to provide a low noise, regulated output from an unregulated input source. This device is particularly well-suited for applications that require a compact and efficient power solution to generate a higher voltage from a lower voltage supply.

Encased in an MSOP-8 package, the LTC1682CMS8#TR offers a space-saving footprint, which is ideal for space-constrained applications. The device operates with an input voltage range from 2.2V to 4.4V, making it versatile for various battery-powered and portable devices. It can deliver a regulated output voltage of twice the input voltage, up to a maximum of 6.6V, with a typical efficiency of over 90%.

One of the key features of the LTC1682CMS8#TR is its low output voltage ripple, which is critical for noise-sensitive applications such as RF power amplifiers, handheld radios, and other communication devices. The charge pump utilizes a switching frequency of 1.2MHz, allowing the use of small external capacitors that reduce the overall solution size and minimize the output voltage ripple.

Furthermore, the LTC1682CMS8#TR integrates soft-start functionality to control inrush current during startup, which helps to prevent excessive current draw from the input supply and reduces stress on the input source. This feature is particularly beneficial in battery-powered applications where preserving battery life and preventing abrupt power draws are essential.

The device also includes thermal shutdown and current limit protection to safeguard against over-temperature and over-current conditions. These protections ensure reliable operation and longevity of the product by preventing damage due to abnormal operating conditions.

In summary, the LTC1682CMS8#TR is a robust and efficient solution for doubling the input voltage with minimal noise and high efficiency. Its compact size, integrated protections, and high performance make it an excellent choice for designers looking to optimize power management in their next-generation portable and battery-powered systems.