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Product Detailed Parameters
- Description：IC REG FLYBACK 3.6A 8SOIC
- 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)：2.8V
- Voltage - Input (Max)：42V
- Voltage - Output (Min/Fixed)：-
- Voltage - Output (Max)：-
- Current - Output：3.6A
- Frequency - Switching：Down to 12kHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Supplier Device Package：8-SOIC-EP
- Grade：-
- Qualification：-
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Overview
The LT8302ES8E#TRPBF is a high voltage isolated flyback switching regulator from Analog Devices, designed for ultra-low quiescent current applications. It operates with an input voltage range of 2.8V to 42V and supports output voltages up to 65V with a switch current capability of 3.6A. The device features a minimum switching frequency of 12.7kHz and a typical quiescent current of 380µA. It utilizes a no-optocoupler architecture for isolation feedback and is housed in an 8-lead SOIC package with an exposed pad.
Feature Summary
- Ultra-low quiescent current operation enables extended battery life in standby modes
- No-optocoupler isolated feedback architecture reduces component count and improves reliability
- Wide input voltage range accommodates various power source configurations
- Integrated high-voltage switch handles up to 65V output stress
Applications
- Battery-powered industrial sensors requiring long operational life
- Isolated DC-DC conversion in low-power medical devices
- Auxiliary power supplies for communication equipment
- High-voltage isolated gate drive circuits
Procurement Notes
Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm the ES8E designation matches the required temperature grade and package variant against the official datasheet. Ensure compatibility with the intended PCB footprint for the 8-SOIC EP package. Cross-reference the manufacturer part number directly with Analog Devices documentation to avoid counterfeit or obsolete stock issues.
Selection Notes
Select this component when ultra-low standby current is critical for system efficiency. The no-opto design simplifies layout but requires careful transformer design to maintain regulation accuracy. Verify that the 3.6A switch current rating meets peak load requirements. Consider thermal performance due to the exposed pad requirement for heat dissipation in the SOIC-8 package.
Part Context
This part belongs to the LT8302 family of high-voltage isolated flyback converters. It shares architectural similarities with other members like the LT8302MPS8E#PBF but differs in packaging and temperature specifications. The series is characterized by its ability to provide galvanic isolation without traditional optocouplers, targeting cost-sensitive and space-constrained designs.
Replacement Considerations
LT8302MPS8E#PBF offers similar electrical characteristics in a tube package. LT8302HS8E#WTRPBF provides automotive-grade qualification with identical functionality in tape and reel format. Verify pinout and thermal pad connectivity before substitution.
