Description

Low IQ, Dual, 2-Phase Synchronous Step-Down Controller Features: Low Operating IQ: 50μA (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) 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 Output Overvoltage Protection Low Shutdown IQ: <8μA Internal LDO Powers Gate Drive from VIN or EXTVCC No Current Foldback During Start-Up Narrow SSOP Package