LTC3850IGN-1#PBF

DC DC Switching Controllers Overview

The LTC3850IGN-1#PBF is a dual synchronous step-down switching controller manufactured by Analog Devices Inc. It operates in a 28-lead SSOP package and utilizes a constant-frequency current mode architecture with a switch frequency of 500 kHz. The device supports an input voltage range from 4 V to 30 V, delivering up to 25 A output current across two independent channels. Output voltages are adjustable from 800 mV to 6 V. The controller features a quiescent current of 30 µA and functions within a temperature range of -40°C to +85°C.

DC DC Switching Controllers Feature Summary

• Dual-channel architecture enables simultaneous control of two independent buck converters for efficient power distribution.
• Synchronous rectification drives all N-channel MOSFET stages to maximize conversion efficiency and reduce heat dissipation.
• OPTI-LOOP compensation technology optimizes transient response performance across varying output capacitance and ESR values.
• Integrated phase-shift operation minimizes input capacitor requirements and reduces overall supply noise.

DC DC Switching Controllers Applications

• DC power distribution systems requiring multi-rail regulation
• Portable instruments and battery-powered digital devices
• Notebook and handheld computer motherboard voltage regulation

DC DC Switching Controllers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to limited availability status. Confirm the specific suffix designation matches project requirements, as variations may exist within the product family. Ensure that the SSOP-28 package dimensions align with PCB footprint specifications before finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this controller when designing systems requiring two isolated or coupled low-voltage rails from a higher intermediate bus voltage. The fixed 500 kHz frequency suits applications prioritizing component size over ultra-low frequency noise. Evaluate thermal management needs based on the 25 A total current capability and the thermal characteristics of the SSOP-28 package under expected load conditions.

DC DC Switching Controllers Part Context

This component belongs to the LTC3850 series of dual synchronous step-down controllers. It shares architectural similarities with other members like the LTC3850IGN but differs in specific electrical parameters such as switching frequency and package type. The series is designed for high-efficiency polyphase applications in portable electronics.

DC DC Switching Controllers Replacement Considerations

LTC3850IGN#PBF