DATASHEET
ISL6620, ISL6620A
VR11.1 Compatible Synchronous Rectified Buck MOSFET Drivers
FN6494 Rev 0.00 April 25, 2008...
DATASHEET
ISL6620, ISL6620A
VR11.1 Compatible Synchronous Rectified Buck MOSFET Drivers
FN6494 Rev 0.00 April 25, 2008
The ISL6620, ISL6620A 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 ISL6620, ISL6620A 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 ISL6620, ISL6620A 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.
The IC is biased by a single low voltage supply (5V), minimizing driving losses in high MOSFET gate capacitance and high switching frequency applications. Each driver is capable of driving a 3nF load with less than 10ns rise/fall time. Bootstrapping of the upper gate driver is ...