ISL6622A

DATASHEET ISL6622A VR11.1 Compatible Synchronous Rectified Buck MOSFET Drivers FN6601 Rev 2.00 March 19, 2009 The ISL6622A is a high frequency MOSFET driver designed to drive upper and lower power N-Channel MOSFETs in a synchronous rectified buck converter topology. The advanced PWM protocol of ISL6622A is specifically designed to work with Intersil VR11.1 controllers and combined with N-Channel MOSFETs, form a complete core-voltage regulator solution for advanced microprocessors. When ISL6622A detects a PSI protocol sent by an Intersil VR11.1 controller, it activates Diode Emulation (DE) operation; otherwise, it operates in normal Continuous Conduction Mode (CCM) PWM mode. In the 8 Ld SOIC package, the ISL6622A drives the upper gate to 12V while the lower get can be driven from 5V to 12V. The 10 Ld DFN part allows for more flexibility. The upper gate can be driven from 5V to 12V using the UVCC pin and the lower gate can also be driven from 5V to 12V using the LVCC pin. This provide...