LTC1173IS8 - High Efficiency DC-DC Converter from Linear Technology

The LTC1173IS8 is a versatile DC-DC converter designed by Linear Technology, now part of Analog Devices, which offers high efficiency and ease of use for a wide range of applications. This step-down converter is capable of delivering continuous output currents up to 1.5A with a wide input voltage range of 3.6V to 34V, making it suitable for single lithium-ion, multiple alkaline/NiCd/NiMH, and 12V or 24V lead-acid batteries, as well as industrial supplies and telecom power systems.

One of the key features of the LTC1173IS8 is its high-efficiency operation, which can reach up to 90%, significantly reducing power loss and improving battery life in portable applications. This is achieved through the use of a low quiescent current and a Burst Mode® operation, which reduces the operating current to just 16µA under no-load conditions.

The LTC1173IS8 comes in an 8-lead SO package, which is designed to minimize the footprint on the PCB and is ideal for space-constrained applications. Its fixed frequency, current mode architecture ensures stable operation over a wide range of supply and output voltages, supported by a strong feature set that includes a shutdown mode reducing the supply current to 10µA.

Additional features of this DC-DC converter include a catch diode current sense for cycle-by-cycle current limiting, which protects the device under overcurrent conditions, and a wide operating temperature range of -40°C to 85°C, ensuring reliable performance in harsh environments. The LTC1173IS8 also supports a wide range of output voltages, which are adjustable from 1.25V to 30V, providing a high degree of flexibility for different design requirements.

In summary, the LTC1173IS8 from Linear Technology is a high-efficiency, versatile DC-DC converter that is well-suited for a variety of applications requiring efficient power conversion, compact design, and robust performance. Its ease of use and comprehensive feature set make it an excellent choice for designers looking to optimize their power management solutions.