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LTC3784
60V PolyPhase Synchronous
Boost Controller
Description Features PolyPhaseВ® Operation Reduces Required Input and
Output Capacitance and Power Supply Induced Noise
n Synchronous Operation for Highest Efficiency and
Reduced Heat Dissipatio Wide V Range: 4.5V to 60V (65V Abs Max);
IN
Operates Down to 2.3V After Start-Up
n Output Voltage Up to 60V
n В±1% 1.200V Reference Voltage
n R
SENSE or Inductor DCR Current Sensing
n 100% Duty Cycle Capability for Synchronous MOSFET
n Low Quiescent Current: 28ОјA
n Phase-Lockable Frequency (75kHz to 850kHz)
n Programmable Fixed Frequency (50kHz to 900kHz)
n Power Good Output Voltage Monitor
n Low Shutdown Current, I < 4ВµA
Q
n Internal LDO Powers Gate Drive from VBIAS or EXTV
CC
n Thermally Enhanced Low Profile 28-Pin 4mm Г— 5mm …