25A/35A DrMOS Module with Diode Emulation and PS4

The ISL99125B and ISL99135B are high-performance DrMOS power modules designed for high-frequency power conversion. By combining a high-performance FET driver and MOSFETs in an advanced package, high-density DC/DC converters may be created. Combined with an Intersil PWM controller, a complete voltage regulator solution can be created with reduced external components and minimum overall PCB real estate.

The ISL99125B and ISL99135B feature a three-state PWM input that, working together with Intersil’s 5V PWM controllers (such as ISL6398, ISL9585x, ISL637x, ISL633x, ISL636x, and ISL68201), will provide a robust solution in the event of abnormal operating conditions.

特性 Features

? VIN range: 0V to 25V

? Current capability: 25A (ISL99125B), 35A (ISL99135B)

? Supports three-state 5.0V PWM input

? 0.5Ω ON-resistance and 4A sink current capability

? Diode emulation for enhanced light-load efficiency

? Ultra low shutdown supply current (3μA) for PS4 operation

? Low three-state hold-off time

? Adaptive shoot-through protection

? Integrated high-side gate-to-source resistor to prevent self

? ?turn-on due to high input bus dv/dt

? VCC undervoltage lockout

? Switching frequencies up to 2MHz

? Pb-free (RoHS compliant)

? 3.5x5 QFN 24 Ld package

Applications

? High-efficiency and high-density VRM and VRD

? Core, graphic, and memory regulators for microprocessors

? High-density VR for server, networking, and cloud computing

? POL DC/DC converters and video gaming consoles