The ISL6605 is a high-frequency MOSFET driver optimized to drive two N-Channel power MOSFETs in a synchronous-rectified buck converter topology.
The ISL6605 is a high‑frequency MOSFET driver optimized for driving two N‑Channel power MOSFETs in a synchronous‑rectified buck converter. It operates from a single low‑voltage supply (5 V–6 V) and provides adaptive shoot‑through protection, a three‑state PWM input, and an internal bootstrap Schottky diode.
The device is offered in QFN and SOIC packages, supports up to 4 A sink current on the lower gate, and features an 8 ns typical propagation delay with a 3000 pF load capability. It is suitable for core‑voltage supplies for Intel® and AMD® microprocessors, high‑frequency DC/DC converters, and isolated power supplies.
| Input Voltage range | -0.3 V to VCC + 0.3 V |
|---|---|
| BOOT Voltage range | -0.3 V to 22 V (DC) or 33 V (<200 ns) |
| PHASE Voltage range | GND - 0.3 V (DC) to 28 V (<200 ns) |
| Maximum Junction Temperature | 150 °C |
| Bias Supply Current (EN low, 0 °C‑70 °C) | 15 pA |
| PWM Input Current (VCC = 5 V) | 250 pA |
| UGATE Rise Time (5 V, 3 nF load) | 8 ns |
| LGATE Rise Time (5 V, 3 nF load) | 8 ns |
| Lower Gate Driver Sink Current | 4 A typical |
The driver has an 8 ns typical propagation delay when driving a 3000 pF load.
The lower gate driver can sink up to 4 A typical current.
The ISL6605 is offered in QFN and SOIC (small‑outline plastic) packages.
The device is rated for a maximum junction temperature of 125 °C in normal operation.