LTC3850EGN-1#PBF

DC DC Switching Controllers Overview

The LTC3850EGN-1#PBF is a dual-channel, two-phase synchronous step-down switching controller manufactured by Analog Devices Inc. It operates within an input voltage range of 4V to 24V and supports output voltages from 800mV to 6V with up to 25A total output current capability. The device features a fixed switching frequency of 500kHz and draws 30µA of quiescent current. It is housed in a 28-lead narrow plastic SSOP package and functions within a temperature range of -40°C to +85°C.

DC DC Switching Controllers Feature Summary

• Dual-channel architecture with 180-degree phase shift to minimize input capacitance and power supply noise
• Opti-Loop compensation for optimized transient response across wide output capacitance and ESR ranges
• Flexible mode selection supporting Burst Mode operation, pulse skip mode, or continuous conduction mode
• Integrated DCR current sense circuitry allowing the use of inductor DC resistance for sensing

DC DC Switching Controllers Applications

• Laptop and notebook computer power systems
• Portable instrumentation and battery-powered digital devices
• DC power distribution systems requiring intermediate bus conversion

DC DC Switching Controllers Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or direct manufacturer channels. Confirm the specific suffix matches the required pinout and thermal specifications. Review the latest datasheet for any product change notifications regarding packaging or material composition updates prior to finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this controller when designing high-efficiency dual-rail power architectures requiring precise load regulation. Ensure the external MOSFETs are rated for the target current and voltage levels. Verify that the chosen inductors support the DCR sensing method if utilized, as this impacts overall system efficiency and cost compared to traditional current-sense resistor approaches.

DC DC Switching Controllers Part Context

This component belongs to the LTC3850 family of PolyPhase controllers designed for high-density power applications. It complements other variants such as the LTC3850IGN and automotive-grade versions like the LTC3850IGN#PBF. The EG suffix denotes the industrial temperature grade, distinguishing it from commercial or extended temperature options within the same functional family.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include the standard LTC3850IGN-1#PBF for identical electrical performance in non-automotive contexts. For automotive reliability requirements, consider the LTC3850IGN#PBF variant which meets AEC-Q100 standards while maintaining compatible control logic and pin configurations.