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Product Detailed Parameters
- Description：IC REG BUCK ADJ 3A DL 38TSSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：2
- Voltage - Input (Min)：3V
- Voltage - Input (Max)：60V
- Voltage - Output (Min/Fixed)：0.8V
- Voltage - Output (Max)：57V
- Current - Output：3A
- Frequency - Switching：110kHz ~ 2.5MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：38-TFSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：38-TSSOP-EP
- Grade：-
- Qualification：-
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Overview
The LT3992IFE is a monolithic dual tracking 3A step-down switching regulator manufactured by Analog Devices. It integrates two independent buck converters within a single package, designed for applications requiring synchronized or tracked power rails. The device supports an input voltage range from 3V to 60V and delivers up to 3A of output current per channel. It features adjustable switching frequencies ranging from 110kHz to 2.5MHz, allowing optimization for efficiency and component size. The IC operates over an extended temperature range of -40°C to +150°C junction temperature.
Feature Summary
- Dual independent buck converter channels with tracking capability
- Wide input voltage range supporting high-voltage systems
- Adjustable switching frequency for design flexibility
- Integrated thermal protection and current limit
Applications
- Industrial equipment power distribution
- Automotive electronics subsystems
- Telecommunications infrastructure power supplies
- Point-of-load regulation for complex systems
Procurement Notes
Verify the specific suffix (e.g., #PBF, #TRPBF) against the required packaging format, as tube and tape-and-reel variants exist. Confirm RoHS compliance status through official documentation before procurement. Ensure the selected variant matches the required operating temperature range and pinout configuration for the target application.
Selection Notes
Select this component when dual isolated or tracked outputs are required from a single high-voltage source. Evaluate the inductor selection based on the desired switching frequency and output current requirements. Consider thermal performance and PCB layout constraints due to the high current capability and compact package options available for this series.
Part Context
The LT3992 belongs to Analog Devices' family of high-performance synchronous buck regulators. It is part of the broader LT3992 series, which offers various package options including QFN and TSSOP. This specific model represents the integrated dual-channel solution, distinct from single-channel counterparts like the LT3991 or higher-current variants.
Replacement Considerations
LT3992EFE#PBF: Alternative package variant. LT3992HFE#TRPBF: Tape and reel version. Verify pin compatibility and electrical specifications before substitution.
