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Product Detailed Parameters
- Description：IC REG FLYBACK 1.25A 16MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Function：Step-Up/Step-Down
- Output Configuration：Positive or Negative, Isolation Capable
- Topology：Flyback
- Output Type：-
- Number of Outputs：1
- Voltage - Input (Min)：3V
- Voltage - Input (Max)：40V
- Voltage - Output (Min/Fixed)：-
- Voltage - Output (Max)：-
- Current - Output：1.25A
- Frequency - Switching：40kHz ~ 1MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-TFSOP (0.118", 3.00mm Width) Exposed Pad
- Supplier Device Package：16-MSOP-EP
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Overview
The LT3573EMSE#PBF is an isolated flyback converter IC from Analog Devices, designed for applications requiring galvanic isolation without the need for an opto-coupler. It operates with an input voltage range of 3V to 40V and provides a single adjustable output. The device integrates a 1.85A switch and supports automotive-grade reliability. Packaged in a 16-lead MSOP with exposed pad, it facilitates compact power supply designs.
Feature Summary
- Eliminates the requirement for an opto-coupler in isolated power conversion topologies
- Integrates a high-current switch for efficient flyback converter implementations
- Supports adjustable output voltage settings for flexible design configurations
Applications
- Isolated DC-DC converter designs
- Automotive power supply systems
- Industrial control power modules
Procurement Notes
Verify the exact part number suffix against official Analog Devices documentation to ensure correct packaging and temperature grade specifications. Confirm availability status through authorized distributors as supply conditions may vary. Ensure compatibility with your board layout requirements regarding the MSOP package thermal pad.
Selection Notes
Select this component when an isolated topology is required but opto-coupler compensation complexity must be avoided. Consider the 1.85A internal switch capability for moderate power levels. Evaluate the 3V to 40V input range against your system's supply variations. Verify that the MSOP package fits within your spatial constraints.
Part Context
This part belongs to the LT3573 family of isolated flyback converters. It is distinct from non-isolated regulators like the LTC3873 or buck converters such as the LT1373. The EMSE#PBF designation indicates a specific commercial/automotive grade variant in a plastic small outline package.
Replacement Considerations
LT3573EMSEPBF and LT3573EMSE-TRPBF are related variants within the same functional family. Verify pinout and electrical specifications before substitution.
