LT3992HFE#TRPBF

Overview

The LT3992HFE#TRPBF is a monolithic dual tracking 3A step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 3V to 60V and provides two adjustable positive outputs, each capable of delivering up to 3A. The minimum output voltage is set at 0.8V, with a maximum of 57V. The device features a programmable switching frequency ranging from 110kHz to 2.5MHz. It is housed in a 38-TFSOP package with a 4.40mm width and includes an exposed pad for thermal management. The component supports a junction temperature range of -40°C to 150°C.

Feature Summary

• Dual independent adjustable output channels designed for synchronized tracking applications
• Integrated high-side N-channel power switch supporting continuous 3A load current per channel
• Programmable switching frequency allows optimization for efficiency or external component size
• Wide input voltage capability accommodates various bus voltage architectures

Applications

• Industrial systems requiring dual non-isolated regulated rails
• Telecommunications infrastructure power distribution
• Embedded computing platforms needing synchronized voltage sequencing
• Automotive electronics operating within wide input ranges

Procurement Notes

Verify the specific suffix TRPBF indicates tape and reel packaging when ordering. Confirm the HFE variant meets the required thermal and electrical specifications for your design. Ensure compatibility with the 38-TSSOP-EP footprint during PCB layout. Check for any recent product change notifications regarding material or marking updates before finalizing procurement.

Selection Notes

Select this component when dual isolated or non-isolated buck converters are needed on a single chip. It is suitable for designs requiring tight tracking between two output voltages. Consider the thermal performance of the TSSOP package under full load conditions. Evaluate the need for external synchronization if operating near the upper frequency limits.

Part Context

This part belongs to the LT3992 family of dual step-down regulators. It shares core architecture with other variants like the LT3992EUH but differs in package type. The HFE designation specifically identifies the 38-pin Thin Shrink Small Outline Package configuration. This family targets applications demanding high current density and space-constrained layouts.

Replacement Considerations

LT3992EUH#PBF offers identical electrical performance in a 32-QFN package.