Description

Low IQ, Dual, 2-Phase Synchronous Step-Down Controller Features: Wide Output Voltage Range: 0.8V ≤ VOUT ≤ 10V Low Operating IQ: 80µA (One Channel On) Out-of-Phase Controllers Reduce Required Input Capacitance and Power Supply Induced Noise OPTI-LOOP® Compensation Minimizes COUT ±1% Output Voltage Accuracy Wide VIN Range: 4V to 36V Operation Phase-Lockable Fixed Frequency 140kHz to 650kHz Selectable Continuous, Pulse Skipping or Low Ripple Burst Mode® Operation at Light Loads Dual N-Channel MOSFET Synchronous Drive Very Low Dropout Operation: 99% Duty Cycle Adjustable Output Voltage Soft-Start or Tracking Output Current Foldback Limiting Power Good Output Voltage Monitor Output Overvoltage Protection Low Shutdown IQ: 8µA Internal LDO Powers Gate Drive from VIN or VOUT Small 28-Lead SSOP Package