LTC1550LCMS8-2.5#TRPBF: Low Noise, Switched-Capacitor Voltage Converter

The LTC1550LCMS8-2.5#TRPBF is a high-performance voltage converter from Linear Technology, designed to efficiently convert a positive input voltage to a regulated negative output voltage. This device is part of Linear Technology's family of switched-capacitor voltage converters that offer a compact and efficient solution for applications requiring a negative supply voltage.

The LTC1550LCMS8-2.5#TRPBF operates with an input voltage range of 2.7V to 5.5V, making it suitable for a variety of battery-operated and portable devices. The output voltage is fixed at -2.5V, which provides a convenient voltage level for analog circuits, such as operational amplifiers and ADCs that require a dual supply for optimal performance.

One of the key features of this voltage converter is its low output noise, which is typically less than 15μVP-P, making it an ideal choice for precision applications where a clean power supply is critical. Additionally, the device has a high conversion efficiency, achieved through the use of low-loss, integrated Schottky diodes and a quasi-constant switching frequency.

The LTC1550LCMS8-2.5#TRPBF comes in a compact MSOP-8 package, which is suitable for space-constrained applications. It also includes over-temperature protection, ensuring reliable operation under a wide range of environmental conditions.

For ease of use, this voltage converter requires only two external capacitors for the charge pump, minimizing the external component count. Furthermore, the LTC1550LCMS8-2.5#TRPBF does not require an inductor, which simplifies the PCB layout and reduces the risk of EMI (Electromagnetic Interference).

Applications for this device are diverse and include portable medical equipment, handheld instrumentation, and other portable devices that require a high-quality negative voltage rail. The LTC1550LCMS8-2.5#TRPBF is a reliable and efficient solution for designers looking to integrate a negative voltage supply with minimal noise and high efficiency into their systems.

In summary, the LTC1550LCMS8-2.5#TRPBF from Linear Technology is a versatile, low-noise switched-capacitor voltage converter that offers a regulated -2.5V output, high efficiency, and a simple design approach for a variety of applications.