LTC3862HUH-2

DC DC Switching Controllers Overview

The LTC3862HUH-2#PBF is a dual-phase constant-frequency, current-mode boost and SEPIC controller designed to drive N-channel power MOSFETs. It operates within a switching frequency range of 75kHz to 500kHz and supports an input voltage supply (Vcc/Vdd) from 5.5V to 36V. The device features interleaved phase control to reduce system filtering requirements. It is housed in a 24-QFN (5x5) package with exposed pad and is rated for operation between -40°C and 85°C ambient temperature.

DC DC Switching Controllers Feature Summary

• Dual-phase architecture reduces input and output filter component requirements through interleaved operation.
• Supports both boost and SEPIC topologies for flexible step-up or step-up/step-down conversion.
• Enables clock synchronization and adjustable switching frequency for noise management.

DC DC Switching Controllers Applications

• Industrial distributed power systems
• Telecommunications infrastructure
• Automotive electronics

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'HUH-2' against the manufacturer's official datasheet to confirm the extended temperature grade and pinout configuration. Ensure the '#PBF' designation indicates lead-free compliance as per RoHS standards. Cross-reference the 24-QFN package dimensions with your PCB footprint library to guarantee mechanical compatibility before finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this controller when designing high-efficiency boost or SEPIC converters requiring two phases to minimize ripple current. It is suitable for applications needing adjustable frequencies between 75kHz and 500kHz to optimize magnetic component size. Consider its 36V maximum supply limit and current-mode control characteristics for stable regulation under varying load conditions.

DC DC Switching Controllers Part Context

This component belongs to the LTC3862 family of dual-phase controllers from Analog Devices. It shares functional similarities with other members like the LTC3862EUH-2 but differs in temperature rating and packaging specifications. The HU variant typically denotes an extended industrial temperature range compared to standard commercial grades.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include the LTC3862EUH-2#PBF for commercial temperature applications. Verify that any replacement maintains the same 24-QFN footprint and electrical characteristics for boost/SEPIC operation.

DC DC Switching Controllers FAQ

What topologies does the LTC3862HUH-2 support?

It supports boost and SEPIC topologies for positive output step-up or step-up/step-down conversion.

How is phase alignment managed in this controller?

It features interleaved phase control with adjustable switching frequency to stagger the internal phases.