Linear Technology's LTC3633IUFD Dual Channel, High Efficiency, 3A, 15V Monolithic Synchronous Step-Down Regulator

The LTC3633IUFD is a high-performance, dual-channel synchronous step-down regulator from Linear Technology, a name synonymous with precision, reliability, and efficiency in the power management industry. This compact and robust integrated circuit is designed to deliver up to 3A of continuous output current per channel at voltages as low as 0.6V, making it an ideal solution for a wide range of power supply applications.

Boasting a wide input voltage range of 4V to 15V, the LTC3633IUFD is perfectly suited for single lithium-ion/polymer, or multi-cell alkaline/NiCd/NiMH applications as well as standard 5V and 12V intermediate bus systems. Its high efficiency is achieved through the use of low RDS(ON) internal switches and a constant frequency current mode architecture, which also allows for a selectable frequency from 500kHz to 4MHz, providing flexibility and enabling the use of small, low-cost capacitors and inductors.

The LTC3633IUFD comes in a compact 24-lead QFN package, which is designed to ensure a minimal footprint on the PCB while offering robust thermal performance. The device also features independent track/soft-start capability, allowing for controlled startup and tracking of each output to an external reference or one another.

Protection features are abundant in the LTC3633IUFD, including overvoltage protection, overcurrent protection, and thermal shutdown, ensuring the longevity and reliability of the end application. Additionally, the no-load quiescent current of only 120µA (per channel) helps conserve battery life in portable applications, dropping to

For designers looking for a power-efficient, space-saving solution that does not compromise on performance, the LTC3633IUFD is an excellent choice. Its combination of high efficiency, dual-channel output, and comprehensive protection circuitry makes it a versatile component for powering the latest electronic devices.

Whether you are designing an embedded system, portable device, or any application requiring a compact and efficient power supply solution, the LTC3633IUFD from Linear Technology stands out as a top contender in its class.