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Product Detailed Parameters
- Description：IC REG BUCK ADJ 1.2A 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)：37V
- Voltage - Output (Min/Fixed)：0.8V
- Voltage - Output (Max)：37V
- Current - Output：1.2A
- Frequency - Switching：300kHz ~ 2.5MHz
- 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 LT3686AIDD#PBF is a synchronous step-down DC/DC converter manufactured by Analog Devices Inc. It operates with an input voltage range of 3.6 V to 37 V and delivers up to 1.2 A of output current. The device utilizes a DFN-10 package and supports switching frequencies between 300 kHz and 2.5 MHz. It features a low quiescent current of 1.2 mA and functions within a temperature range of -40°C to +125°C.
Feature Summary
- Integrates a synchronous buck topology for high efficiency in compact designs
- Supports wide input voltage ranges suitable for industrial power rails
- Offers programmable switching frequency to optimize external component size
Applications
- Industrial control systems requiring isolated or non-isolated power regulation
- Distributed power architectures in embedded equipment
- Battery-powered devices needing efficient step-down conversion
Procurement Notes
Verify the specific suffix 'IDD' against the official datasheet to confirm pinout and thermal pad configuration. Confirm RoHS compliance status through the manufacturer's documentation. Check for any lead-free packaging requirements if applicable to your assembly process. Ensure the supplier provides valid traceability documents for quality assurance purposes.
Selection Notes
Select this component when a single-output, high-efficiency regulator is needed for inputs up to 37 V. The DFN-10 package suits applications with strict space constraints. Consider the 1.2 A current limit for loads below this threshold. Evaluate the switching frequency options to balance EMI performance against passive component sizes.
Part Context
This part belongs to the LT3686 family of synchronous step-down regulators from Analog Devices. The family focuses on providing high efficiency and small solution sizes for various industrial and communication applications. The IDD variant specifies the particular package and temperature grade within this product line.
Replacement Considerations
LT3686EMSE#PBF shares similar electrical characteristics but uses a different MSOP package. Verify pin compatibility and thermal performance before substitution. Other members of the LT3686 series may offer different current ratings or package options.
