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Product Detailed Parameters
- Description：IC REG FLYBACK 1.25A 16MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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#TRPBF is an isolated flyback converter integrated circuit manufactured by Analog Devices Inc. It operates without an opto-coupler, utilizing a proprietary control architecture for feedback regulation. The device supports input voltages ranging from 3V to 40V and provides a regulated output current capability of up to 1.85A in automotive configurations. Packaged in a 16-lead MSOP with exposed pad (EP), it is designed for high-efficiency power conversion in space-constrained applications requiring galvanic isolation.
Feature Summary
- Integrated isolated flyback converter topology eliminating the need for external opto-couplers
- Proprietary constant on-time control architecture for simplified design and improved transient response
- Automotive-grade qualification available for robust performance in demanding environments
- Compact 16-lead MSOP package with exposed thermal pad for efficient heat dissipation
Applications
- Industrial power supplies requiring isolated outputs
- Automotive electronics systems needing galvanic isolation
- Telecommunications equipment power distribution
- Medical device power stages with safety isolation requirements
Procurement Notes
Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm automotive grade availability if operating conditions require AEC-Q100 compliance. Check latest datasheet revisions for updated thermal characteristics and pinout definitions before finalizing PCB layout. Ensure supplier authorization to guarantee component authenticity.
Selection Notes
Select this component when designing isolated DC-DC converters that benefit from reduced component count due to integrated opto-coupler elimination. Consider the 16-lead MSOP package constraints for thermal management and board space. Evaluate input voltage range compatibility with system power sources. Verify output current requirements against the 1.85A automotive rating or standard industrial ratings.
Part Context
This part belongs to the LT3573 family of isolated flyback controllers from Analog Devices. It complements other non-isolated regulators like the LTC3637 by providing galvanic isolation capabilities. The series targets applications where transformer-based isolation is necessary but compact size and minimal external components are critical design drivers.
Replacement Considerations
LT3573EMSE-TRPBF and LT3573EMSE#TRPBF are functionally equivalent variants within the same product line. Cross-reference with LT3573EMSE for bare die or tube packaging options if reel quantities are not required. No direct cross-brand replacements are officially documented; evaluate similar isolated flyback controllers based on pinout and electrical specifications.
