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Product Detailed Parameters
- Description：IC REG BUCK ADJ 5A 24QFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：4.3V
- Voltage - Input (Max)：40V
- Voltage - Output (Min/Fixed)：1.197V
- Voltage - Output (Max)：38.8V
- Current - Output：5A
- Frequency - Switching：200kHz ~ 2.25MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：24-WFQFN Exposed Pad
- Supplier Device Package：24-QFN (3x5)
- Grade：-
- Qualification：-
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Overview
The LT3976EUDD is a monolithic buck switching regulator manufactured by Analog Devices Inc. It features an adjustable frequency operation and accepts a wide input voltage range up to 40V. The device incorporates a low quiescent current design, consuming only 3.3uA of supply current while regulating with no load. It is designed for high-efficiency DC to DC conversion applications requiring robust performance across varying input conditions.
Feature Summary
- Adjustable frequency operation for flexible system design
- Wide input voltage range capability up to 40V
- Low quiescent current consumption during no-load regulation
Applications
- 1.8V step-down converter circuits
- 2.5V step-down converter circuits
- General DC to DC power conversion systems
Procurement Notes
Verify the specific suffix EUDD against official Analog Devices documentation to confirm pinout, thermal package, and temperature grade. Ensure compatibility with your PCB layout requirements and input voltage specifications before procurement. Cross-reference with authorized distributors for current availability status.
Selection Notes
Select this component when a wide input voltage range up to 40V is required alongside low standby power consumption. The adjustable frequency feature allows optimization for external component size or noise spectrum. Verify that the 3.3uA quiescent current meets your battery life or efficiency targets under light load conditions.
Part Context
The LT3976 series represents Analog Devices' solution for high-voltage buck conversion. The EUDD variant specifically denotes the package type and operating temperature range defined in the manufacturer's datasheet. It belongs to the family of monolithic switching regulators designed for compact, efficient power management in industrial and consumer electronics.
Replacement Considerations
Consult the official Analog Devices replacement guide for direct pin-compatible alternatives. Verify electrical parameters such as input voltage range, output current capability, and quiescent current match your application requirements before substituting.
