Description

2-Phase, Dual Output Synchronous Boost Controller Features: Synchronous Operation for Highest Efficiency and Reduced Heat Dissipation Wide Input Range: 4.5V to 38V (40V Abs Max) and Operates Down to 2.5V After Start-Up Output Voltages Up to 60V ±1% 1.2V Reference Voltage RSENSE or Inductor DCR Current Sensing 100% Duty Cycle Capability for Synchronous MOSFET Low Quiescent Current: 125μA Phase-Lockable Frequency (75kHz to 850kHz) Programmable Fixed Frequency (50kHz to 900kHz) Selectable Current Limit Adjustable Output Voltage Soft-Start Power Good Output Voltage Monitors Low Shutdown Current IQ: <8μA Internal LDO Powers Gate Drive from VBIAS or EXTVCC Thermally Enhanced Low Profile 32-Pin 5mm × 5mm QFN Package