Description

Dual, Multiphase Step-Down Voltage Mode DC/DC Controller with Accurate Current Sharing Features: Operates with Power Blocks, DrMOS or External Gate Drivers and MOSFETs Constant-Frequency Voltage Mode Control with Accurate Current Sharing ±0.75% 0.6V Voltage Reference Dual Differential Output Voltage Sense Amplifiers Multiphase Capability—Up to 12-Phase Operation Programmable Current Limit Safely Powers a Prebiased Load Programmable or PLL-Synchronizable Switching Frequency Up to 2.25MHz Lossless Current Sensing Using Inductor DCR or Precision Current Sensing with Sense Resistor VCC Range: 3V to 5.5V VIN Range: 3V to 24V Power Good Output Voltage Monitor Output Voltage Tracking Capability Programmable Soft-Start Available in a 36-Pin 5mm × 6mm QFN Package