High Voltage Synchronous Rectified Buck MOSFET Driver

The ISL6208A is a high frequency, dual MOSFET driver, optimized to drive two N-Channel power MOSFETs in a synchronous-rectified buck converter topology. It is especially suited for mobile computing applications that require high efficiency and excellent thermal performance. This driver, combined with an Intersil multiphase Buck PWM controller, forms a complete single-stage core-voltage regulator solution for advanced mobile microprocessors.

Features

• Dual MOSFET Drives for Synchronous Rectified Bridge

• Adaptive Shoot-Through Protection

- Active Gate Threshold Monitoring

- Programmable Dead-Time

•0.5ΩOn-Resistance and 4A Sink Current Capability

• Supports High Switching Frequency up to 2MHz

- Fast Output Rise and Fall Time

- Low Propagation Delay

• Three-State PWM Input for Power Stage Shutdown

• Internal Bootstrap Schottky Diode

• Low Bias Supply Current (5V, 100µA)

• Diode Emulation for Efficiency and Pre-Biased Startup

• VCC POR (Power-On-Reset) Feature Integrated

• Pin-to-pin Compatible with ISL6207, ISL6208, ISL6209

• QFN Package:

  - Compliant to JEDEC PUB95 MO-220

    QFN - Quad Flat No Leads - Package Outline

  - Near Chip Scale Package footprint, which improves

    PCB efficiency and has a thinner profile

• Pb-Free Plus Anneal Available (RoHS Compliant)

Applications

• 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