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Product Detailed Parameters
- Description：IC REG BUCK 5V 1.2A 8MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Fixed
- Number of Outputs：1
- Voltage - Input (Min)：7.5V
- Voltage - Input (Max)：36V
- Voltage - Output (Min/Fixed)：5V
- Voltage - Output (Max)：-
- Current - Output：1.2A
- Frequency - Switching：1MHz
- 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 LT3663IMS8E-5#TRPBF is a current mode step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 7 V to 36 V and delivers a fixed output voltage of 5 V at up to 1.2 A. The device features a 1 MHz switching frequency, programmable output current limit, and shutdown capability. It functions within a temperature range of -40°C to +125°C and utilizes an MSOP-8 package.
Feature Summary
- Current mode control architecture for precise regulation
- Programmable output current limit to manage power dissipation
- Integrated shutdown pin for low-power standby modes
Applications
- General-purpose DC to DC conversion in industrial systems
- Power supply stages for embedded controllers requiring 5V rails
- Battery-powered equipment utilizing wide input voltage ranges
Procurement Notes
Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the manufacturer is Analog Devices Inc. Ensure the part number matches the exact electrical specifications required for your design, particularly the 5V output and 1.2A current rating. Cross-reference the MSOP-8 package dimensions with your PCB footprint requirements before finalizing procurement.
Selection Notes
Select this component when a synchronous buck converter with high efficiency and compact size is needed. The 1 MHz frequency allows for smaller passive components compared to lower frequency alternatives. The programmable current limit provides flexibility for protecting downstream loads without external sensing circuitry. Consider thermal performance under maximum load conditions given the small package size.
Part Context
This part belongs to the LT3663 family of high-efficiency, high-voltage synchronous step-down converters. The IMS8E designation specifies the industrial temperature grade and MSOP-8 enhanced package. The #TRPBF suffix denotes the specific reel packaging format for automated assembly processes.
Replacement Considerations
Direct replacements include other parts from the LT3663 family such as LT3663EMS8E-5 or LT3663HMS8E-5, which share similar electrical characteristics but may differ in temperature grades or packaging options. Verify compatibility with existing PCB footprints and control loop compensation when substituting.
