1 Features
1• 92.5% System Efficiency at 12 A
• Ultra-Low Power Loss of 1.8 W at 12 A
• Max Rated Continuous Current of 20 A and Peak
Current of 45 A
• High-Frequency Operation (up to 2 MHz)
• High-Density SON 3.3-mm × 3.3-mm Footprint
• Ultra-Low Inductance Package
• System Optimized PCB Footprint
• Low Quiescent (LQ) and Ultra-Low Quiescent
(ULQ) Current Mode
• 3.3-V and 5-V PWM Signal Compatible
• Diode Emulation Mode with FCCM
• Tri-State PWM Input
• Integrated Bootstrap Diode
• Shoot-Through Protection
• RoHS Compliant – Lead-Free Terminal Plating
• Halogen Free

2 Applications
• NVDC Notebook and Ultrabook PCs
• Tablets
• Point of Load Synchronous Buck in Networking,
Telecom, and Computing Systems

3 Description
The CSD95379Q3M NexFET™ power stage is a
highly optimized design for use in high-power, highdensity
synchronous buck converters. 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 high-current, high-efficiency, and highspeed
switching capability in a small 3.3-mm × 3.3-
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.