ISL6206
High Voltage Synchronous Rectified Buck MOSFET Driver
Typical Diagram
Key Features
- Drives Two N-Channel MOSFETs
- Adaptive Shoot-Through Protection
- 30V Operation Voltage
- Supports High Switching Frequency
- Fast Output Rise Time
- Propagation Delay 15ns
- Three-state Input for Output Stage Shutdown
- Internal Bootstrap Schottky Diode
Description
The ISL6206 is a high voltage, high frequency, dual MOSFET driver specifically designed to drive two N-Channel power MOSFETs in a synchronous-rectified buck converter topology in mobile computing applications. This driver combined with an Intersil Multiphase Buck PWM controller forms a complete single-stage core-voltage regulator solution for advanced mobile microprocessors.
The ISL6206 features a three-state PWM input that, working together with any Intersil multiphase PWM controllers, will prevent a negative transient on the output voltage when the output is being shut down. This feature eliminates the Schottky diode that is usually seen in a microprocessor power system for protecting the microprocessor from reversed-output-voltage damage.
The output drivers in the ISL6206 has the capacity to efficiently switch power MOSFETs at frequencies up to 2MHz. Each driver is capable of driving a 3000pF load with a 15ns propagation delay and 20ns transition time. This product implements bootstrapping on the upper gate, reducing implementation complexity and allowing the use of higher performance, cost effective, N-Channel MOSFETs. Adaptive shoot-through protection is integrated to prevent both MOSFETs from conducting simultaneously.
Applications
- Core Voltage Supplies for Intel and AMD® Mobile Microprocessors
- High Frequency Low Profile DC-DC Converters
- High Current Low Output Voltage DC-DC Converters
- High Input Voltage DC-DC Converters
