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1 Features

1? 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, high-

density 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.