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LT8357 - SEPIC and Flyback Controller

General Description

The LT®8357 is a wide input range, current mode, DC/DC controller which can be configured as a boost, SEPIC or flyback converter.

The LT8357 drives a low side N-channel power MOSFET with 5V split gate drive.

Key Features

  • n Wide Input Voltage Range: 3V to 60V n Low IQ Burst Mode® Operation: 8µA n Up to 95% Efficiency at 2MHz n ±1.5% Internal 1V Voltage Reference n 5V Split Gate Drive for Efficiency and EMI Optimization n 100kHz to 2MHz Fixed Switching Frequency with External Clock Synchronization n Spread Spectrum Frequency Modulation for Low EMI n Accurate Enable Threshold with Hysteresis n Programmable Output Soft-Start and Tracking n Thermally-Enhanced 12-Lead MSOP Package.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LT8357 60V 2MHz Low-IQ Boost, SEPIC and Flyback Controller FEATURES n Wide Input Voltage Range: 3V to 60V n Low IQ Burst Mode® Operation: 8µA n Up to 95% Efficiency at 2MHz n ±1.5% Internal 1V Voltage Reference n 5V Split Gate Drive for Efficiency and EMI Optimization n 100kHz to 2MHz Fixed Switching Frequency with External Clock Synchronization n Spread Spectrum Frequency Modulation for Low EMI n Accurate Enable Threshold with Hysteresis n Programmable Output Soft-Start and Tracking n Thermally-Enhanced 12-Lead MSOP Package APPLICATIONS n Automotive and Industrial Systems n Battery-Powered Systems n Portable Electronic Equipment DESCRIPTION The LT®8357 is a wide input range, current mode, DC/DC controller which can be configured as a boost, SEPIC or flyback converter.