CSD97394Q4M

1 Features

• 90% System Efficiency at 15 A • Max Rated Continuous Current 20 A, Peak 45 A • High Frequency Operation (up to 2 MHz)

• High Density – SON 3.5 × 4.5 mm Footprint

• Ultra-Low Inductance Package

• System Optimized PCB Footprint

• Ultra-Low Quiescent (ULQ) Current Mode

• 3.3 V and 5 V PWM Signal Compatible

• Diode Emulation Mode with FCCM

• Input Voltages up to 24 V • Tri-State PWM Input

• Integrated Bootsrap Diode

• Shoot Through Protection

• RoHS Compliant – Lead Free Terminal Plating

• Halogen Free

2 Applications

• Ultrabook/Notebook DC/DC Converters

• Multiphase Vcore and DDR Solutions

• Point-of-Load Synchronous Buck in Networking, Telecom, and Computing Systems

3 Description

The CSD97394Q4M NexFET™ Power Stage is a highly-optimized design for use in a high-power, highdensity synchronous buck converter. This product integrates the driver IC and NexFET technology to complete the power stage switching function. The driver IC has a built-in selectable diode emulation function that enables DCM operation to improve light load efficiency. In addition, the driver IC supports ULQ mode that enables connected standby for Windows® 8. With the PWM input in tri-state, quiescent current is reduced to 130 µA, with immediate response. When SKIP# is held at tri-state, the current is reduced to 8 µA (typically 20 µs is required to resume switching). This combination produces a high current, high efficiency, and high speed switching device in a small 3.5 × 4.5 mm outline package. In addition, the PCB footprint is optimized to help reduce design time and simplify the completion of the overall system design.

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