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Product Detailed Parameters
- Description：IC REG BUCK ADJ 1A 12DFN
- 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)：3.6V
- Voltage - Input (Max)：36V
- Voltage - Output (Min/Fixed)：0.8V
- Voltage - Output (Max)：20V
- Current - Output：1A
- Frequency - Switching：250kHz ~ 2.2MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：12-WFDFN Exposed Pad
- Supplier Device Package：12-DFN (3x3)
- Grade：-
- Qualification：-
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Overview
The LT3682EDD#PBF is a synchronous step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range from 3.6V to 36V and delivers up to 1A of output current. The device features an adjustable output voltage starting at 0.8V, with a maximum limit of 20V. Switching frequency is programmable between 250kHz and 2.2MHz. It utilizes a 12-WFDFN package with a bare thermal pad for efficient heat dissipation. The component supports operation across a junction temperature range of -40°C to 125°C.
Feature Summary
- Integrated synchronous rectification for high efficiency in compact designs
- Programmable switching frequency allows optimization for size or performance
- Built-in soft-start functionality minimizes inrush current during startup
Applications
- Industrial control systems requiring isolated power rails
- Portable instrumentation powered by battery or single-cell sources
- Embedded computing platforms needing stable low-voltage regulation
Procurement Notes
Verify the complete part number including suffixes against official Analog Devices documentation to ensure correct package and temperature grade. Confirm RoHS compliance status through manufacturer declarations. Check for alternative packaging options if tube quantities do not match production requirements. Validate supply chain authenticity through authorized distributors only.
Selection Notes
Compare input voltage ranges and output current capabilities against system load requirements. Evaluate thermal performance based on PCB copper area and ambient conditions. Consider switching frequency settings to balance electromagnetic interference levels against external component sizes. Ensure compatibility with feedback resistor networks for desired output voltage configuration.
Part Context
This component belongs to the LT3682 family of monolithic switching regulators designed for space-constrained applications. It integrates power switches and control logic into a single small footprint. The series targets applications requiring reliable DC-DC conversion without external discrete components. Related models may offer different current ratings or fixed output voltages within the same architectural framework.
Replacement Considerations
LT3682EDD#TRPBF serves as the tape-and-reel variant of this component. Verify pinout compatibility and thermal pad connectivity when substituting packaging types. Ensure functional equivalence regarding switching frequency ranges and protection features before implementation.
