ISL6608 is a high frequency, MOSFET driver optimized to drive two N-Channel power MOSFETs in a synchronous- rectified buck converter topology.
The ISL6608 driver is optimized for driving two N‑Channel MOSFETs in a synchronous‑rectified buck converter. It operates from a single 5 V supply, offers a 4 A sink current, and includes features such as adaptive shoot‑through protection, three‑state PWM input, diode emulation and an internal bootstrap Schottky diode.
Typical applications include core‑voltage supplies for FPGAs, PowerPC microprocessors, point‑of‑load modules and high‑frequency DC‑DC converters. The device is available in SOIC‑8 and 3×3 mm QFN packages with lead‑free options.
| BOOT Voltage range | -0.3 V to 22 V |
|---|---|
| Ambient Temperature (operating) | -40 °C to 85 °C |
| Lower driver sink current | 4 A |
| Maximum switching frequency | up to 2 MHz |
It monitors the MOSFET gate voltages and ensures one MOSFET is off before the other turns on, preventing simultaneous conduction.
It enhances converter efficiency at light‑load conditions and prevents a negative transient during pre‑biased startup.