LTC1682CS8-3.3#TRPBF: High-Efficiency, Low-Noise Doubler Charge Pump

The LTC1682CS8-3.3#TRPBF is a versatile integrated circuit from Linear Technology, designed to provide a high-efficiency, low-noise doubled voltage from a single input. This charge pump voltage converter is ideal for applications where a regulated output voltage is required from a variable input supply without the use of an inductor.

Encased in an 8-lead SOIC package, the LTC1682CS8-3.3#TRPBF is part of a family of monolithic CMOS charge pump voltage converters. It is specifically designed to double the input voltage, providing a fixed output of 3.3 volts. The device is capable of delivering up to 45mA of continuous current at the output with a typical efficiency of 99%, making it a highly efficient solution for portable electronics, battery-powered devices, and other space-constrained applications.

The LTC1682CS8-3.3#TRPBF operates over a wide input voltage range of 2.2V to 4.4V, which allows for flexibility in design and makes it suitable for a variety of power sources, including single-cell Li-Ion batteries. Its low operating current and the ability to shut down to a low quiescent current makes this charge pump an excellent choice for power-sensitive designs.

One of the key features of this product is its low output voltage ripple, which is typically less than 15mVp-p. This low noise characteristic is achieved through the use of Linear Technology's proprietary low-noise charge pump technology. As a result, the LTC1682CS8-3.3#TRPBF is an excellent choice for noise-sensitive applications such as RF power supplies and precision analog circuits.

Additional features include built-in thermal protection and overcurrent protection, which safeguard the device and the application circuit from damage under abnormal conditions. The LTC1682CS8-3.3#TRPBF also includes a low-battery detector that provides an early warning of a drop in input voltage, allowing for system-level power management.

In summary, the LTC1682CS8-3.3#TRPBF from Linear Technology is a high-performance, reliable solution for doubling input voltages with minimal noise and high efficiency. Its compact size, robust protection features, and ease of use make it well-suited for a wide range of applications, particularly where space and power efficiency are key considerations.