LTC1174CS8-3.3#TRPBF - High Efficiency, Low Loss DC/DC Converter

The LTC1174CS8-3.3#TRPBF is a high-performance DC/DC converter designed and manufactured by Linear Technology, now part of Analog Devices. This efficient power management integrated circuit (IC) is specifically engineered to deliver a fixed output voltage of 3.3V with exceptional efficiency and low power dissipation. It is an ideal choice for battery-powered applications where extending battery life is of paramount importance.

Featuring a step-down (buck) converter topology, the LTC1174CS8-3.3#TRPBF is capable of driving a 1.5A load with excellent line and load regulation. The device operates at a switching frequency of 100kHz, allowing the use of small, low-cost inductors and capacitors to minimize the size and cost of the total power supply solution. With its internal 1.25A switch, it can maintain a high level of efficiency even at low output currents, making it suitable for a wide range of portable devices.

One of the key features of this converter is its very low quiescent current, which significantly reduces the power consumption when the load demand is low or in standby mode. Additionally, it includes a Burst Mode® operation that further enhances efficiency at light loads by reducing the switching frequency, thereby minimizing the quiescent current draw. This feature is particularly beneficial in prolonging battery life in portable applications.

The LTC1174CS8-3.3#TRPBF is packaged in an 8-lead SOIC package, which is both compact and easy to integrate into various electronic designs. Its thermal performance is optimized for a wide temperature range, ensuring reliable operation under varying environmental conditions.

Other notable features of this DC/DC converter include overcurrent protection, which safeguards the device and the load from damage due to excessive currents, and a low-battery detector that can signal when the input power source falls below a preset threshold. This alert can be crucial for systems that need to maintain data integrity during power failures.

In summary, the LTC1174CS8-3.3#TRPBF from Linear Technology is a versatile, efficient, and reliable solution for designers looking to improve power management in battery-powered or energy-sensitive applications.