SubscribeLTC3858 step-down switching regulator controller
Linear Technology has introduced the LTC3858 step-down switching regulator controller that drives all N-channel synchronous power MOSFET stages.
The LTC3858 uses a constant frequency, current mode step-down architecture with the two controller channels operating 180 degrees out of phase.
Main features of the LTC3858 step-down switching regulator are : Low Operating IQ: 170μA (One Channel On) , Wide Output Voltage Range: 0.8V ≤ VOUT ≤ 24V , Wide VIN Range: 4V to 38V , RSENSE or DCR Current Sensing , Out-of-Phase Controllers Reduce Required Input , Capacitance and Power Supply Induced Noise , OPTI-LOOP® Compensation Minimizes COUT , Phase-Lockable Frequency (75kHz-850kHz) , Programmable Fixed Frequency (50kHz-900kHz) , Very Low Dropout Operation: 99% Duty Cycle , Adjustable Output Voltage Soft-Start , Power Good Output Voltage Monitor , Output Overvoltage Protection , Output Latch-Off Protection During Short Circuit , Low Shutdown IQ: 8μA , Internal LDO Powers Gate Drive from VIN or EXTVCC .
LTC3858 step down regulator controller can be used in applications like : automotive systems , battery operated digital devices ,distributed DC power systems and other .
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