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Product Detailed Parameters
- Description：IC REG BUCK ADJ 1.2A 8DFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- 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 LT3663IDCB#TRMPBF is a current mode step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 7.5V to 36V and provides a fixed output voltage of 5V at up to 1.2A. The device features a programmable output current limit for precise system power dissipation control. It utilizes a DFN-8 surface-mount package and functions as a single-output DC-to-DC converter within the LT3663 series.
Feature Summary
- Current mode buck topology for efficient voltage conversion
- Programmable output current limiting capability
- Wide input voltage operating range suitable for automotive applications
Applications
- Automotive battery charger systems
- Industrial power distribution networks
- Avionics power supply units
Procurement Notes
Verify the specific suffix #TRMPBF against official Analog Devices documentation to confirm tape-and-reel packaging and temperature grade specifications. Ensure compatibility with target PCB footprint dimensions for the DFN-8 package. Cross-reference thermal requirements with system design constraints before finalizing procurement orders.
Selection Notes
Select this component when a robust buck regulator with integrated current limiting is required for high-voltage input environments. The fixed 5V output simplifies design for standard logic loads. Consider the DFN-8 package size for space-constrained layouts. Verify that the 1.2A continuous current rating meets the maximum load demand of the application circuit.
Part Context
This part belongs to the LT3663 family of high-voltage step-down converters designed for demanding environments. It shares architectural similarities with other members like the LT3663IDCB-3.3 but differs in fixed output voltage settings. The series is characterized by its ability to handle wide input ranges while maintaining stable regulation under varying load conditions.
Replacement Considerations
Direct substitutes include LT3663IDCB-3.3#TRPBF and LT3663EDCB-5#TRPBF, provided the output voltage difference is acceptable or adjustable via external components. Verify pinout compatibility and thermal performance characteristics before substitution.
