LT3845

`High Voltage Operation: Up to 60V
`Synchronizable Up to 600kHz
`Adjustable Constant Frequency: 100kHz to 500kHz
`Output Voltages Up to 36V
`Adaptive Nonoverlap Circuitry Prevents SwitchShoot-Through
`Reverse Inductor Current Inhibit for Discontinuous Operation Improves Ef ciency with Light Loads
`Programmable Soft-Start
`120A No Load Quiescent Curren
`10A Shutdown Supply Curren
`1% Regulation Accuracy
`Standard Gate N-Channel Power MOSFETs
`Current Limit Unaffected by Duty Cycle
`Reverse Overcurrent Protection
`16-Lead Thermally Enhanced TSSOP Package

The LT^®3845isahighvoltage,synchronous,currentmodecontrollerusedforediumtohighpower,ighefciencysupplies.Itoffersawide 4V to 60V input range(7.5V minimum start-up voltage). An onboard latorsimplieshebiasingrequirements by providing IC power .directly from V_IN

Burst Mode^®operation maintains high ef ciency at lightBurst Modeloads by reducing IC quiescent urrento20A.Lightload fciency is also improved with the reverse inductor current inhibit function which supports discontinuous operation.

Additional features of  LT3845 include adjustable xed operating frequency that can be synchronized to an external clock for noise sensitive applications, gate drivers capable of driving large N-channel MOSFETs, a precision undervoltagelockout, 10A shutdown current, short-circuit protectionand a programmable soft-start.

The LT3845 is available in a 16-lead thermally enhancedTSSOP package.