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Product Detailed Parameters
- Description：60V SYNC 4-SWITCH BUCK-BOOST LED
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Output Type：Transistor Driver
- Function：Step-Up/Step-Down
- Output Configuration：Positive
- Topology：Buck-Boost
- Number of Outputs：1
- Output Phases：2
- Voltage - Supply (Vcc/Vdd)：3V ~ 60V
- Frequency - Switching：400kHz
- Duty Cycle (Max)：-
- Synchronous Rectifier：Yes
- Clock Sync：Yes
- Serial Interfaces：-
- Control Features：Enable, Frequency Control, Power Good, Soft Start
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：28-WFQFN Exposed Pad
- Supplier Device Package：28-QFN (4x5)
- Grade：-
- Qualification：-
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Overview
The LT8392HUFD#TRPBF is a synchronous four-switch buck-boost DC/DC controller from Analog Devices Inc., designed for high-voltage applications. It operates with an input voltage range of 3V to 60V and supports a switching frequency of 400kHz. The device features spread spectrum modulation to reduce electromagnetic interference. Packaged in a 28-pin QFN (4x5) with an exposed pad, it is supplied in tape and reel format for automated surface-mount assembly.
Feature Summary
- Synchronous four-switch topology enables efficient step-up and step-down regulation across wide input-output differentials.
- Integrated spread spectrum modulation reduces conducted and radiated electromagnetic interference noise.
- Supports external N-channel MOSFETs for high-current applications with independent control of switch phases.
Applications
- Industrial automation systems requiring isolated or non-isolated power conversion
- Battery-powered equipment operating with varying cell counts
- LED lighting drivers with constant current regulation requirements
Procurement Notes
Verify the exact part number suffix TRPBF indicates tape and reel packaging when ordering. Confirm that the HUFD variant meets the required temperature grade and package dimensions for your PCB layout. Ensure compatibility with external MOSFET selection for thermal management. Cross-reference the datasheet revision date to confirm feature availability.
Selection Notes
Select this component when input voltages frequently exceed or fall below the desired output level. The synchronous design improves efficiency compared to diode-based rectification. Consider the 400kHz switching frequency for balancing component size and transient response. Verify that the 28-QFN package fits within the available board space constraints.
Part Context
This controller belongs to the LT839x family of high-voltage buck-boost regulators. It shares architectural similarities with the LT8390 but differs in specific control parameters and target application frequencies. The HUFD designation specifies the lead-free and RoHS-compliant version of the QFN package.
Replacement Considerations
Public confirmed substitute part numbers are not provided in the source documentation. Direct replacement requires verification of pinout compatibility and electrical parameter alignment with the original design specifications.
