Linear Technology's LTC1682: High Efficiency, Low Noise Doubler Charge Pump

The LTC1682 from Linear Technology is a versatile and efficient integrated circuit designed to provide a high-efficiency, low noise doubled voltage from a single power supply input. This compact charge pump voltage doubler is an excellent choice for applications where a negative voltage rail is not available, and a higher voltage is required for various electronic components.

One of the key features of the LTC1682 is its ability to generate a regulated output voltage with a low ripple, which is crucial for maintaining the integrity of sensitive analog circuits. The device operates with an input voltage range from 2.2V to 10V, making it suitable for a wide array of applications, including battery-powered devices, where power efficiency is critical.

The LTC1682 stands out for its high switching frequency of up to 1MHz, which allows the use of small, low-cost capacitors while still providing a low output voltage ripple. This high-frequency operation also minimizes the size of the overall power supply solution, saving space on the printed circuit board (PCB) and reducing the overall cost of the design.

Additionally, the LTC1682 incorporates a low noise technology that significantly reduces voltage spikes on the output, thereby protecting downstream components from potential damage or interference. This makes it an ideal choice for precision applications such as data acquisition systems, portable medical devices, and communication equipment.

The device also features built-in thermal protection and a low quiescent current, which helps to extend battery life in portable applications. The LTC1682 is available in a small, surface-mount package, which is optimal for space-constrained applications.

In summary, the LTC1682 from Linear Technology is a high-performance, reliable solution for generating a higher voltage supply from a lower voltage source. Its high efficiency, low noise operation, and compact size make it a versatile choice for designers looking to optimize their power supply solutions across a broad range of electronic products.