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Product Detailed Parameters
- Description：IC REG BUCK ADJ 10A 24LQFN
- Series：Silent Switcher®1
- Mfr：Analog Devices Inc.
- Package：Tray
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：2.8V
- Voltage - Input (Max)：18V
- Voltage - Output (Min/Fixed)：0.597V
- Voltage - Output (Max)：3.3V
- Current - Output：10A
- Frequency - Switching：200kHz ~ 3MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：24-TFQFN Exposed Pad
- Supplier Device Package：24-LQFN (4x4)
- Grade：-
- Qualification：-
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Overview
The LT8642SEV#PBF is a synchronous step-down Silent Switcher 2 regulator from Analog Devices. It supports an input voltage range of 3.4 V to 18 V and delivers up to 10 A output current. The device operates with a switching frequency adjustable between 200 kHz and 3 MHz. It features a quiescent current of 2.5 µA and maintains operation within a junction temperature range of -40°C to +125°C. The component utilizes a 24-lead LGA package for surface mount installation.
Feature Summary
- Integrates Silent Switcher 2 technology to minimize electromagnetic interference radiation without requiring external filters.
- Provides high efficiency across wide load and line conditions through synchronous rectification architecture.
- Offers low quiescent current consumption to enhance power savings during light-load or standby operations.
Applications
- Industrial distributed power systems
- Point-of-load regulation in computing infrastructure
- Automotive electronics requiring robust voltage conversion
Procurement Notes
Verify the specific suffix and tape-and-reel or tray packaging options available from authorized distributors. Confirm RoHS compliance status and lead times directly with the manufacturer or certified suppliers before finalizing procurement plans.
Selection Notes
Select this component when an 18 V maximum input limit is sufficient and a 10 A continuous current capability is required. Consider the 24-lead LGA package constraints for thermal management and PCB layout requirements compared to higher voltage variants in the series.
Part Context
This part belongs to the LT8642S family of Silent Switcher regulators designed for high-current applications. It shares architectural similarities with other members like the LT8640 and LT8643 but is specifically optimized for lower input voltage ranges up to 18 V while maintaining compact form factors.
Replacement Considerations
LT8642SEV#TRPBF serves as the tape-and-reel equivalent for automated assembly processes. Verify pinout compatibility and thermal characteristics when substituting with other 10 A buck converters from different manufacturers.
