ISL6622B
ISL6622B is VR11.1 Compatible Synchronous Rectified Buck MOSFET Drivers manufactured by Renesas.
VR11.1 patible Synchronous Rectified Buck MOSFET Drivers
FN6602 Rev 1.00 March 19, 2009
The ISL6622B 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 ISL6622B is specifically designed to work with Intersil VR11.1 controllers and bined with N-Channel MOSFETs, form a plete core-voltage regulator solution for advanced microprocessors. When ISL6622B detects a PSI PWM 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 ISL6622B drives the upper gate to 12V while the lower drive voltage is fixed at 5.75V. The 10 Ld DFN part offers more flexibility: the upper gate can be driven from 5V to 12V via the UVCC pin, while the lower gate has a resistor-selectable drive voltage of 5.75V, 6.75V, and...
