LTC1682CS8-5#TR - High Power Charge Pump DC/DC Converter

The LTC1682CS8-5#TR from Linear Technology is a robust, high-efficiency charge pump DC/DC converter designed to provide a regulated 5V output from an input voltage ranging from 2.7V to 4.5V. This device is specifically engineered to deliver a high-power output with a minimal number of external components, making it an ideal solution for portable electronic devices where space and power efficiency are critical.

The LTC1682CS8-5#TR stands out with its ability to double the input voltage and then regulate it to a fixed 5V output, offering a maximum output current of 100mA. Its internal oscillator runs at a switching frequency of 45kHz, which allows for the use of small, low-cost capacitors with low ESR (Equivalent Series Resistance), resulting in a compact and cost-effective power supply design.

This charge pump converter features a low quiescent current, typically 120µA, which is essential for battery-powered applications where extending battery life is a priority. Moreover, the device includes a thermal shutdown mechanism that protects it from overheating, ensuring reliable operation under various conditions.

The LTC1682CS8-5#TR is packaged in a space-saving 8-lead SOIC, which is suitable for automated assembly processes, and its tape and reel packaging (indicated by the suffix '#TR') is optimized for high-volume manufacturing. The robust design and high level of integration make this converter a versatile choice for a wide range of applications, including but not limited to handheld instruments, GPS receivers, and mobile phones.

Key features of the LTC1682CS8-5#TR include:

• Fixed 5V ±4% Output Voltage
• Input Voltage Range: 2.7V to 4.5V
• Up to 100mA Output Current
• Low Quiescent Current: 120µA Typically
• High Switching Frequency: 45kHz
• Thermal Shutdown
• 8-Lead SOIC Package

For designers looking for a reliable and efficient power solution that can be easily integrated into their systems, the LTC1682CS8-5#TR offers a compelling combination of performance and simplicity.