MIC2132 - Microchip

MIC2132 Advanced COT Buck Controller

MIC2132 is a constant on-time, dual phase synchronous buck controller featuring a unique adaptive on-time control architecture with a stackable feature of up to eight phases. MIC2132 operates over an input supply range from 8V to 75V. The output voltage is adjustable down to 0.6V with an ensured accuracy of ±1% at the FBS pin. The device operates with progra.

Features

• Input Voltage Range: 8V to 75V
• Input Down to 2V when VDD = 5V from External Supply
• Adjustable Output Voltage from 0.6V to 28V
• Adaptive Constant On-Time Control: - High DeltaV™ operation - Any Capacitor™ stable
• 0.6V Internal Reference with ±1% Accuracy
• Novel Ripple Injection Method to Allow Greater than 50% Duty Cycle Operation
• Operates in CCM, Stackable for Multiphase Operation up to Eight Phases
• Accurate Current Balancing Between Phases
• Accurate 180° Phasing of Outputs
• 100 kHz to 1 MHz Switching Frequency per Phase
• Secondary LDO to Improve System Efficiency
• Supports St.