LTC3862HFE-2

DC DC Switching Controllers Overview

The LTC3862HFE-2#PBF is a multi-phase mode boost DC/DC controller manufactured by Analog Devices Inc. It operates within an input voltage range of 5.5 V to 36 V and supports Boost and SEPIC topologies. The device features a fixed switching frequency of 300 kHz, with a maximum duty cycle of 96%. It provides a single output configuration with a maximum output current of 20 mA and a static current of 30 uA. The component is housed in a TSSOP-EP-24 package and is rated for operation between -40°C and +150°C.

DC DC Switching Controllers Feature Summary

• Supports multiphase mode control for high-power step-up applications
• Capable of driving standard or low-level MOSFETs even when input voltage drops below the set-point
• Includes clock synchronization capability for phase alignment

DC DC Switching Controllers Applications

• High power, high voltage step-up DC/DC converters
• Low emissions diesel fuel injector actuator supplies
• Multi-stage boost converter designs requiring up to 120V output

DC DC Switching Controllers Procurement Notes

Verify the specific suffix HFE against official Analog Devices documentation to confirm the extended temperature rating of +150°C. Confirm availability status as distribution channels may indicate limited supply. Ensure the selected package matches the TSSOP-EP-24 footprint requirements for your PCB layout.

DC DC Switching Controllers Selection Notes

Select this controller for applications requiring wide input voltage ranges up to 36 V and high output voltages. The +150°C junction temperature rating makes it suitable for harsh environments. Consider the 300 kHz fixed frequency for EMI management. Verify that external components support the required gate drive levels for the chosen MOSFETs.

DC DC Switching Controllers Part Context

This component belongs to the LTC3862-2 series of multiphase boost controllers. It is designed for high-efficiency power conversion where multiple phases are utilized to distribute thermal load and increase current handling capabilities. The family includes variants with different temperature ratings and packages, such as the EFE (-40°C to +85°C) and EUH (QFN) versions.

DC DC Switching Controllers Replacement Considerations

LTC3862EFE-2#PBF offers identical electrical performance but is rated for a commercial temperature range of -40°C to +85°C instead of the industrial range. LTC3862EUH-2#PBF provides the same functionality in a QFN-24 package. Verify thermal requirements before substituting.