The LTC3858IGN-1#TRPBF is a high-performance, dual, synchronous step-down switching regulator controller from Linear Technology, now part of Analog Devices. This advanced product is designed to drive all N-channel power MOSFET stages, which makes it an ideal choice for applications requiring high efficiency and precision. It is capable of generating two independent output voltages ranging from 0.8V to 24V, which can be as high as 99% duty cycle for each channel.
The device operates over a wide input voltage range from 4.5V to 38V, making it versatile for use in a variety of systems, including automotive, industrial, and telecommunications equipment. The LTC3858IGN-1#TRPBF utilizes a constant frequency, current mode architecture, which allows for a selectable frequency from 50kHz to 900kHz or it can be synchronized to an external clock within the same range.
One of the key features of this product is its differential output voltage sensing, which enhances the accuracy of the output voltage regulation, especially in systems with high current paths and significant voltage drops. This ensures reliable and consistent performance even under challenging conditions. Additionally, the LTC3858IGN-1#TRPBF includes a precise 0.8V reference with an accuracy of ±1% over a temperature range of -40°C to 85°C.
The controller also provides a powerful 1.1Ω onboard gate drivers. It has robust protection features such as overvoltage, undervoltage, overcurrent, and over-temperature protection, enhancing the safety and durability of the end application. The LTC3858IGN-1#TRPBF is available in a thermally enhanced 28-lead SSOP package, ensuring efficient heat dissipation and reliability in a compact form factor.
With its advanced design and comprehensive feature set, the LTC3858IGN-1#TRPBF is a top-tier solution for designers looking to implement a highly efficient, dual-channel power supply in their electronic systems, without compromising on performance or reliability.