General Description

The RT9612A/B is a high frequency, synchronous rectified, single phase dual MOSFET driver designed to adapt from normal MOSFET driving applications to high performance CPU VR driving capabilities. The RT9612A/B can be utilized under both VCC= 5V or VCC= 12V applications. The RT9612A/B also builds in an internal power switch to replace external boot strap diode. The RT9612A/B can support switching frequency efficiently up to 500kHz. The RT9612A/B has the UGATE driving circuit and the LGATE driving circuit for synchronous rectified DC/DC converter applications. The driving rise/fall time capability is designed within 30ns and the shoot through protection mechanism is designed to prevent shoot through of high side and low side power MOSFETs. The RT9612A/B has PWM tri-state shut down function which can force driver output into high impedance.

特性 Features

Drive Two N-MOSFETs

Adaptive Shoot Through Protection

Embedded Bootstrap Diode

Support High Switching Frequency

Fast Output Rise Time

Tri-State Input for Bridge Shutdown

Small SOP-8, SOP-8 (Exposed Pad) and 8-Lead WDFN Packages

RoHS Compliant and Halogen Free

Applications

Core Voltage Supplies for Desktop, Motherboard CPU

High Frequency Low Profile DC/DC Converters

High Current Low Voltage DC/DC Converters