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Product Detailed Parameters
- Description：IC REG BUCK ADJ 6A 24LQFN
- Series：Silent Switcher®2
- Mfr：Analog Devices Inc.
- Package：Tray
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：3V
- Voltage - Input (Max)：42V
- Voltage - Output (Min/Fixed)：0.97V
- Voltage - Output (Max)：42V
- Current - Output：6A
- 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：Automotive
- Qualification：AEC-Q100
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Overview
The LT8643SIV#WPBF is a 42V, 6A synchronous step-down Silent Switcher with 2.5μA quiescent current and external compensation.
Feature Summary
- Silent Switcher 2 architecture for low EMI
- Wide input voltage range up to 42V
- High efficiency synchronous rectification
- External compensation capability
Applications
- Automotive infotainment systems
- Industrial power distribution
- Point-of-load regulation
Procurement Notes
Verify the specific suffix #WPBF against official Analog Devices documentation to confirm tape-and-reel packaging and RoHS compliance status. Ensure the external compensation variant matches the design requirements rather than the fixed-frequency internal compensation version.
Selection Notes
Select this component when high input voltages up to 42V are required alongside precise output regulation. The external compensation feature allows customization of the control loop response for stability in varying load conditions. Consider thermal performance due to the exposed pad package.
Part Context
Part of the LT8643S Silent Switcher 2 family designed for high-efficiency DC-DC conversion. It integrates high-side and low-side GaN switches within a compact LQFN package to minimize solution size while maintaining robust performance in noisy environments.
Replacement Considerations
LT8643SEV-2#PBF and LT8643SHV-2#PBF are parameter-equivalent alternatives available from Analog Devices.
