LTC3621EMS8E-23.3#PBF - High Efficiency, 17V, 1A Synchronous Step-Down Regulator

The LTC3621EMS8E-23.3#PBF is a high-performance, synchronous step-down regulator from Linear Technology, designed to deliver a fixed output voltage of 3.3V. This compact and efficient power management solution is capable of sourcing up to 1A of continuous output current from a wide input voltage range of 3.6V to 17V, making it versatile for a variety of applications in the industrial, automotive, and telecommunications sectors.

With its internal synchronous rectification, the LTC3621EMS8E-23.3#PBF offers high efficiency, which can reach up to 95%. This feature minimizes the need for external heat sinking and allows for a smaller overall solution size. The device operates at a fixed frequency of 1MHz, allowing the use of small, low-cost capacitors and inductors while maintaining low output voltage ripple.

The regulator integrates a range of protection features to ensure reliable operation under adverse conditions. These include over-temperature protection, over-current protection, and a robust short-circuit protection mechanism. The LTC3621EMS8E-23.3#PBF also features a low dropout mode, ensuring the output voltage is maintained even when the input voltage is very close to the output voltage, further enhancing the performance during low input voltage conditions.

Designed for ease of use, the LTC3621EMS8E-23.3#PBF includes an internal soft-start to limit inrush current during startup and a power good flag that signals when the output voltage is within regulation. This makes it an excellent choice for power supply designs that require a simple, yet highly reliable solution.

The device is available in a thermally efficient MSOP-8E package, which is designed to optimize the thermal performance and save space on the PCB. The LTC3621EMS8E-23.3#PBF is also RoHS compliant, ensuring that it meets current environmental standards for hazardous substances.

In summary, the LTC3621EMS8E-23.3#PBF from Linear Technology is a versatile, efficient, and reliable step-down regulator, suitable for a wide array of applications requiring a stable 3.3V supply with significant current capability.