LT3508IUF#PBF - Dual-Channel, 36V, Step-Down Switching Regulator

The LT3508IUF#PBF is a high-performance dual-channel, step-down switching regulator from Linear Technology, designed to deliver efficient power management for a wide range of applications. This compact and robust integrated circuit is capable of operating from an input voltage range of 3.6V to 36V, making it suitable for use with a variety of supply sources, from single-cell Li-Ion batteries to industrial supplies and automotive inputs.

Each of the two independent channels is capable of delivering up to 1.25A of continuous output current with exceptional power conversion efficiency. The channels have independent shutdown and soft-start features, allowing for flexible power sequencing and management of complex systems. The switching frequency is programmable via an external resistor or can be synchronized to an external clock in the range of 250kHz to 2.2MHz, which allows for optimization between efficiency and external component size.

The LT3508IUF#PBF incorporates a range of features to ensure reliable and stable operation under varying conditions. It includes a current mode control design that provides fast transient response and excellent loop stability. Additionally, it has built-in protection features such as overvoltage protection, thermal shutdown, and cycle-by-cycle current limit, which safeguard the device and the system against fault conditions.

The regulator's robust design is complemented by its low dropout operation, ensuring continued functionality even when the input voltage is close to the output voltage. This feature is particularly useful in automotive and battery-powered applications where input voltage can vary significantly.

For design flexibility, the LT3508IUF#PBF is available in a compact 20-lead QFN package with a thermal pad for enhanced thermal performance. Its small footprint and high level of integration make it an ideal choice for space-constrained applications that require reliable power delivery without sacrificing performance.

With its dual-channel output, wide input voltage range, and comprehensive set of features, the LT3508IUF#PBF is a versatile power solution that meets the needs of a variety of demanding applications, including industrial controls, automotive systems, and portable devices.