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Product Detailed Parameters
- Description：IC REG BUCK ADJ 1.2A 8DFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：7.5V
- Voltage - Input (Max)：36V
- Voltage - Output (Min/Fixed)：0.8V
- Voltage - Output (Max)：6V
- Current - Output：1.2A
- Frequency - Switching：1.5MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-WFDFN Exposed Pad
- Supplier Device Package：8-DFN (2x3)
- Grade：-
- Qualification：-
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Overview
The LT3663EDCB#TRMPBF is an automotive-grade, current-mode step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 7.5V to 36V and delivers a fixed output voltage of 5V at up to 1.2A. The device features a programmable output current limit that accurately controls system power dissipation and reduces the size of power path components. Packaged in an 8-lead DFN EP for surface mount installation.
Feature Summary
- Current mode buck topology with integrated 1.2A switch
- Programmable output current limit for precise power control
- Automotive qualification for reliable operation
Applications
- Automotive infotainment systems
- Body electronics power distribution
- Industrial DC-DC conversion
Procurement Notes
Verify the specific suffix #TRMPBF against the manufacturer's official datasheet to confirm tape-and-reel packaging and automotive grade designation. Ensure compatibility with your PCB footprint and thermal requirements before procurement.
Selection Notes
Select this component when designing for automotive environments requiring a wide input voltage range up to 36V. The fixed 5V output and 1.2A capacity suit logic supply applications. Verify that the programmable current limit meets your load protection needs.
Part Context
This part belongs to the LT3663 family of high-efficiency synchronous buck regulators. It is designed for automotive applications, offering robust performance under varying line and load conditions while maintaining small solution size through high-frequency operation.
Replacement Considerations
Consult Analog Devices documentation for direct pin-compatible alternatives within the LT3663 series, such as variants with different fixed output voltages (e.g., LT3663IDCB-3.3). Cross-reference with other automotive-grade buck converters if input ranges or current limits differ.
