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Product Detailed Parameters
- Description：IC REG BUCK ADJ 1.2A 8MSOP
- 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-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Supplier Device Package：8-MSOP-EP
- Grade：-
- Qualification：-
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Overview
The LT3663EMS8E#TRPBF is a current mode step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 7.5 V to 36 V and provides a fixed 3.3 V output at up to 1.2 A. The device features a 1.1 MHz switching frequency and includes programmable output current limiting for precise power dissipation control. It is housed in an 8-lead MSOP package with exposed pad, suitable for surface mount applications across an extended temperature range.
Feature Summary
- Current mode step-down topology with integrated power switch
- Programmable output current limit for system protection
- Fixed 3.3 V output voltage configuration
- Extended industrial temperature grade operation
Applications
- Automotive electronics systems
- Industrial point-of-load regulation
- Distributed power architectures
- Battery-powered equipment requiring efficient step-down conversion
Procurement Notes
Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the EMS8E designation corresponds to the MSOP-8EP package variant. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the manufacturer part number with official Analog Devices documentation to avoid counterfeit risks during procurement.
Selection Notes
Select this component when a fixed 3.3 V output is required from a 7.5 V to 36 V input source. The 1.2 A output current capability suits moderate load applications. The 1.1 MHz frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the MSOP-8EP package constraints for thermal management and PCB layout space availability.
Part Context
This part belongs to the LT3663 family of high-efficiency buck regulators. The family includes adjustable voltage variants and different fixed output options such as 1.2 V and 5 V. The EMS8E package variant distinguishes it from other pinout or thermal configurations within the same functional series.
Replacement Considerations
LT3663EMS8E#PBF is the tube-packaged equivalent of the same electrical specification. LT3663IMS8E#TRPBF shares identical electrical performance but may differ in manufacturing lot or minor traceability details.
