LT8618/LT8618-3.3 TYPICAL PERFORMANCE CHARACTERISTICSSwitching WaveformsSwitching Waveforms I L I L 20mA/DIV 25mA/DIV SW SW 5V/DIV 16V/DIV 12VIN TO 3.3VOUT AT 50mA L = 100µH 48VIN TO 3.3VOUT AT 50mA L = 100µH 1µs/DIV 8618 G25 1µs/DIV 8618 G26 Switching WaveformsSwitching Waveforms IL I L 20mA/DIV 20mA/DIV SW SW 4V/DIV 16V/DIV 12VIN TO 3.3VOUT AT 3mA L = 100µH 48VIN TO 3.3VOUT AT 4mA L = 100µH 5µs/DIV 8618 G27 5µs/DIV 8618 G28 Switching WaveformsSwitching Waveforms 100mA 100mA I LOAD I LOAD 25mA/DIV 50mA 25mA/DIV 50mA V OUT V OUT 20mV/DIV 20mV/DIV VIN = 12V VIN = 48V COUT = 22µF COUT = 22µF fSW = 400kHz fSW = 400kHz 100µs/DIV 8618 G29 100µs/DIV 8618 G30 Rev. 0 For more information www.analog.com 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts
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