Description

No RSENSE, Low EMI, Synchronous DC/DC Controller Features: No Current Sense Resistor Required Selectable Spread Spectrum Frequency Modulation for Low Noise Operation Constant Frequency Current Mode Operation for Excellent Line and Load Transient Response True PLL for Frequency Locking or Adjustment (Frequency Range: 250kHz to 750kHz) Wide VIN Range: 2.75V to 9.8V Wide VOUT Range: 0.6V to VIN 0.6V ±1.5% Reference Low Dropout Operation: 100% Duty Cycle Selectable Burst Mode®/Pulse-Skipping/Forced Continuous Operation Auxiliary Winding Regulation Internal Soft-Start Circuitry Output Overvoltage Protection Micropower Shutdown: IQ = 9µA Tiny Thermally Enhanced Leadless (3mm × 3mm) DFN and 10-lead MSOP Packages