1 Features

• Over 92% System Efficiency at 15 A
• Max Rated Continuous Current 25 A, Peak 60 A
• High-Frequency Operation (up to 2 MHz)
• High-Density SON 3.5-mm x 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 Bootstrap 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 CSD97374Q4M 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-mm × 4.5-mm outline package. In addition, the PCB footprint has been optimized to help reduce design time and simplify the completion of the overall system design.

1. For all available packages, see the orderable addendum at the end of the data sheet.

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Application Diagram

Typical Power Stage Efficiency and Power Loss