General Description
●The LM25116 is a synchronous buck controller intended for step-down regulator applications from a high voltage or widely varying input supply. The control method is based upon current mode control utilizing an emulated current ramp.
●Features
●Emulated peak current mode
●Wide operating range up to 42V
●Low IQ shutdown (<10µA)
●Drives standard or logic level MOSFETs
●Robust 3.5A peak gate drive
●Free-run or synchronous operation to 1MHz
●Optional diode emulation mode
●Programmable output from 1.215V to 36V
●Precision 1.5% voltage reference
●Programmable current limit
●Programmable soft-start
●Programmable line under-voltage lockout
●Automatic switch to external bias supply
●TSSOP-20EP exposed pad
●Thermal shutdown
