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Product Detailed Parameters
- Description：IC REG FLYBACK 420MA 16MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Function：Step-Up/Step-Down
- Output Configuration：Positive or Negative, Isolation Capable
- Topology：Flyback
- Output Type：-
- Number of Outputs：1
- Voltage - Input (Min)：4.5V
- Voltage - Input (Max)：100V
- Voltage - Output (Min/Fixed)：-
- Voltage - Output (Max)：-
- Current - Output：420mA
- Frequency - Switching：40kHz ~ 650kHz
- Synchronous Rectifier：No
- Operating Temperature：-55°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：16-TFSOP (0.118", 3.00mm Width), 12 Leads
- Supplier Device Package：16-MSOP
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Overview
The LT3512MPMS#TRPBF is a high-voltage monolithic switching regulator IC designed for isolated flyback topologies. It operates with an input voltage range of 4.5V to 100V and delivers up to 420mA output current. The device integrates a built-in LDO regulator, overcurrent protection, and external compensation capabilities. It utilizes an internally generated clock set by an external resistor on the RT pin, supporting frequencies from 40kHz to 650kHz. The component is housed in a 12-lead MSOP package.
Feature Summary
- Designed specifically for isolated flyback converter applications without requiring third windings or opto-isolators
- Integrates a built-in low-dropout (LDO) regulator for auxiliary power supply generation
- Features internal overcurrent protection and external compensation for stable operation
Applications
- Isolated DC-DC conversion systems
- Automotive power management circuits
- Industrial control power supplies
Procurement Notes
Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm the manufacturer is Analog Devices Inc. Ensure the part number matches the exact electrical specifications required for your design, particularly the 4.5V to 100V input range and 420mA current capability. Cross-reference the datasheet for the 12-lead MSOP package dimensions.
Selection Notes
Select this component when designing isolated flyback converters requiring high input voltage tolerance up to 100V. It is suitable for applications needing integrated LDO functionality to simplify bias circuitry. Consider the external clock frequency range of 40kHz to 650kHz for EMI and efficiency optimization. Ensure the 12-lead MSOP package fits the PCB layout constraints.
Part Context
The LT3512 series comprises high-voltage switching regulators optimized for isolated topologies. The MPMS variant denotes the MSOP package option. This family eliminates the need for complex feedback loops using opto-isolators, streamlining the design process for isolated power stages while maintaining robust performance under varying load conditions.
Replacement Considerations
Check for direct substitutes within the LT3512 family that match the MSOP package and electrical ratings. Verify compatibility with existing PCB footprints and thermal requirements. Ensure any replacement supports the same 4.5V to 100V input range and flyback topology constraints.
