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Product Detailed Parameters
- Description：IC REG BUCK ADJ 2A 10DFN
- 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)：34V
- Voltage - Output (Min/Fixed)：1.265V
- Voltage - Output (Max)：20V
- Current - Output：2A
- Frequency - Switching：300kHz ~ 3MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：10-WFDFN Exposed Pad
- Supplier Device Package：10-DFN (3x3)
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Overview
The LT3684IDD#PBF is a monolithic buck switching regulator manufactured by Analog Devices Inc. It accepts input voltages up to 34V, with a maximum rating of 36V. The device provides a fixed output current capability of 2A. Its switching frequency is adjustable within the range of 300kHz to 2.8MHz. The component operates over an extended temperature range from -40°C to 125°C (TJ). It features synchronous rectification and includes shutdown functionality.
Feature Summary
- Adjustable switching frequency allows optimization for efficiency or size across a wide range
- Integrated high-side and low-side power switches enable compact design without external diodes
- Shutdown pin enables significant reduction in supply current during standby modes
Applications
- Industrial distributed power systems
- Battery-powered equipment requiring efficient step-down conversion
- Portable instrumentation and measurement devices
Procurement Notes
Verify the specific suffix #PBF indicates lead-free RoHS compliance when ordering. Confirm the IDD package type matches your PCB footprint requirements. Check current availability status as distribution may vary by region. Ensure input voltage does not exceed the absolute maximum rating of 36V during operation.
Selection Notes
Select this component when a 2A output current is required with an input voltage up to 36V. Choose the adjustable frequency feature to balance between passive component size and electromagnetic interference performance. Consider the thermal characteristics of the DFN package for heat dissipation needs in enclosed environments.
Part Context
This part belongs to the LT3684 family of synchronous buck regulators. It shares architectural similarities with other Linear Technology/Analog Devices DC-DC converters but is distinct in its specific current rating and frequency adjustment range compared to variants like the LT3685 or LT3680.
Replacement Considerations
LT3684IDD#TRPBF serves as the tape-and-reel version of this component. Other parts in the LT368x series may offer different current ratings or fixed frequencies but require verification of pin compatibility and electrical specifications.
