Linear Technology's LTC1550CGN Low Noise, Switched-Capacitor Voltage Converter

The LTC1550CGN is a highly efficient, low noise, switched-capacitor voltage converter manufactured by Linear Technology, now part of Analog Devices. This versatile component is designed to provide a stable and reliable negative voltage from a positive input voltage, making it an ideal choice for a wide range of applications in the electronics industry.

Key Features

• Input Voltage Range: The LTC1550CGN operates with an input voltage range of 2.7V to 5.5V, making it suitable for battery-operated devices and other low-voltage applications.
• Output Voltage: It can generate a regulated negative voltage which is the inverse of the input voltage, providing design flexibility for various circuit configurations.
• High Output Current: This component is capable of delivering up to 100mA of output current, sufficient for many portable and low-power applications.
• Low Noise Performance: The LTC1550CGN features low output ripple and noise, which is critical for sensitive analog circuits and precision applications.
• High Frequency Operation: With its high switching frequency of 20kHz, the LTC1550CGN allows for small external components, reducing board space and overall design size.
• Thermal Protection: The device includes thermal shutdown protection to safeguard against overheating during high current operation or adverse environmental conditions.

Applications

Thanks to its robust feature set, the LTC1550CGN is well-suited for a variety of applications, including:

• Portable Instrumentation
• Medical Devices
• Operational Amplifier Power Supplies
• Data Acquisition Systems
• Battery-Powered Equipment
• Handheld Devices

Package and Reliability

The LTC1550CGN comes in a compact 16-pin narrow SSOP package, which is ideal for space-constrained applications. Its solid-state design ensures high reliability and a long operational lifespan, making it a dependable choice for critical and long-term deployments.

With its combination of efficiency, low noise, and high performance, the LTC1550CGN from Linear Technology is a standout solution for designers looking to integrate a negative voltage supply into their electronic projects.