CSD95379Q3MT.B中文资料德州仪器数据手册PDF规格书

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.