Datasheet Linear Technology LTC3890EGN-3#PBF — 数据表

LTC3890-3
60V Low IQ, Dual, 2-Phase
Synchronous Step-Down
DC/DC Controller
Description Features n n n n n n n n n n Wide VIN Range: 4V to 60V (65V Abs Max)
Low Operating IQ: 50µA (One Channel On)
Wide Output Voltage Range: 0.8V ≤ VOUT ≤ 24V
RSENSE or DCR Current Sensing
Out-of-Phase Controllers Reduce Input Capacitance
and Power Supply Induced Noise
Phase-Lockable Frequency (75kHz to 850kHz)
Programmable Fixed Frequency (50kHz to 900kHz)
Selectable Continuous, Pulse-Skipping or Low Ripple
Burst Mode® Operation at Light Loads
Very Low Dropout Operation: 99% Duty Cycle
Adjustable Output Voltage Soft-Start or Tracking
Power Good Output Voltage Monitor
Low Shutdown IQ: 8V.100µA
SENSE1+, SENSE2+, SENSE1–
SENSE2– Voltages. –0.3V to 28V
PLLIN/MODE, INTVCC Voltage. –0.3V to 6V
FREQ Voltage. –0.3V to INTVCC
EXTVCC . –0.3V to 14V …