PWM1

PWM2

SS

RT

V

CC

V

OUT

V

OUT

V

IN

Multiphase

Controller

CSD95373B

CSD95373B

TSEN

0

5

10

15

20

25

30

35

40

45

30

40

50

60

70

80

90

100

0

2

4

6

8

10

12

14

Output Current (A)

G001

Product

Folder

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CSD95373BQ5M

SLPS462 – JUNE 2014

CSD95373BQ5M Synchronous Buck NexFET™ Smart Power Stage

1 Features

2 Applications

1

•

45 A Continuous Operating Current Capability

•

Multiphase Synchronous Buck Converters

•

92.7% System Efficiency at 25 A

–

High Frequency Applications

•

Low Power Loss of 2.6 W at 25 A

–

High Current, Optimized for Applications With

a Wide Duty Cycle Range

•

High Frequency Operation (up to 1.25 MHz)

•

POL DC-DC Converters

•

Diode Emulation Mode with FCCM

•

Memory and Graphic Cards

•

Temperature Compensated Bi-Directional Current

Sense

•

Desktop and Server VR11.x / VR12.x V-core and

Memory Synchronous Converters

•

Analog Temperature Output (600 mV at 0°C)

•

Fault Monitoring

3 Description

–

Highside Short, Overcurrent, and

The CSD95373BQ5M NexFET™ smart power stage

Overtemperature Protection

is a highly optimized design for use in a high power,

•

3.3 V and 5 V PWM Signal Compatible

high

density

synchronous

buck

converter.

This

product

integrates

the

Driver

IC

and

Power

•

Tri-State PWM Input

MOSFETs to complete the power stage switching

•

Integrated Bootstrap Diode

function. This combination produces high-current,

•

Optimized Deadtime for Shoot Through Protection

high-efficiency, and high-speed switching capability in

•

High Density SON 5 × 6 mm Footprint

a small 5 mm × 6 mm outline package. It also

integrates

the

accurate

current

sensing

and

•

Ultra-Low Inductance Package

temperature sensing functionality to simplify system

•

System Optimized PCB Footprint

design and improve accuracy. In addition, the PCB

•

RoHS Compliant – Lead-Free Terminal Plating

footprint has been optimized to help reduce design

time and simplify the completion of the overall system

•

Halogen Free

design.

Device

Media

Qty

Package

Ship

CSD95373BQ5M

13-Inch Reel

2500

SON 5-mm ×

Tape and

6-mm Package

Reel

CSD95373BQ5MT

7-Inch Reel

250

(1)

For all available packages, see the orderable addendum at

the end of the data sheet.

SPACER

Application Diagram

Typical Power Stage Efficiency and Power Loss

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.