The ISL6571 is a MOSFET driver and synchronous half-bridge switch from Intersil that can implement synchronous rectifier buck switching regulators. The ISL6571 can replace two power MOSFETs, a Schottky diode, two gate drivers and synchronous control circuitry. ISL6571's main application ranges are high-density power conversion circuits, including multi-phase topology computer microprocessor core power regulators, ASIC and memory array regulators, etc. Another useful feature of the ISL6571 is the compatibility with three-state input control: if the input is open, the PWM input will turn off both output drives. The ISL6571 operates in continuous conduction mode to reduce EMI constraints and enable high bandwidth operation.
The Intersil ISL6571 is designed to implement a synchronous rectified buck switching regulator by replacing discrete components like power MOSFETs, Schottky diodes, and gate drivers. It features adaptive shoot-through deadtime control and operates in continuous conduction mode to reduce EMI constraints.
The device supports three-state input control where leaving the PWM input open turns off both output drives. Available in a low-profile QFN package with near chip-scale footprint, it is suitable for multiphase power regulators and high-power-density applications.
| Switching Frequency | up to 1MHz |
|---|---|
| MOSFET Bias Supply (PVCC) | +5V to +10V |
| Ambient Temperature Range | -40°C to 70°C |
| Maximum Junction Temperature | 125°C |
| Nominal Bias Supply Current (PWM Open) | 3.6 mA |
It addresses high-density power conversion circuits including multiphase-topology computer microprocessor core power regulators, ASIC and memory array regulators.
Yes, Pb-free versions are available and are RoHS compliant.