CSD95372AQ5M Datasheet, PDF (1/24 Pages) Texas Instruments – Synchronous Buck NexFET™ Power Stage

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Synchronous Buck NexFET™ Power Stage
CSD95372AQ5M
SLPS416 – JUNE 2013
FEATURES
1
•23 60A Continuous Operating Current Capability
• 92.4% System Efficiency at 30A
• Ultra Low Power Loss of 3.3W at 30A
• High Frequency Operation (up to 2 MHz)
• High Density - SON 5x6-mm Footprint
• Ultra Low Inductance Package
• System Optimized PCB Footprint
• 3.3V and 5V PWM Signal Compatible
• Diode Emulation Mode with FCCM
• Analog Temperature Output
• Input Voltages up to 16V
• Three-State PWM Input
• Integrated Bootstrap Switch
• Optimized Dead Time for Shoot Through
Protection
• RoHS Compliant – Lead Free Terminal Plating
• Halogen Free
APPLICATIONS
• Multiphase Synchronous Buck Converter
– High Frequency Applications
– High Current, Low Duty Cycle Applications
• Point-of-Load DC-DC Converters
• Memory and Graphic Cards
• Desktop and Server VR11.x and VR12.x for
VCore Synchronous Buck Converters
ORDERING INFORMATION
Device
Package
Media Qty
CSD95372AQ5M
SON 5 × 6-mm
Plastic Package
13-Inch
Reel
2500
Ship
Tape and
Reel
DESCRIPTION
The CSD95372AQ5M NexFET™ Power Stage is a highly optimized design for use in a high power, high density
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. This combination produces high current, high efficiency, and high
speed switching capability in a small 5x6mm outline package. It also integrates the temperature sensing
functionality to simplify system design and improve accuracy. In addition, the PCB footprint has been optimized
to help reduce design time and simplify the completion of the overall system design.
CSD95372A
V_CC
V_OUT
VCC
PWM1
+Is1
VOUT
-Is2
+NTC
SS
-NTC
RT
+Is2
-Is2
PWM2
PGND
V_IN
V_OUT
100
16
90
14
80
12
70
10
60
V_DD = 5V
8
50
V_IN = 12V
6
V_OUT = 1.2V
40
L_OUT = .22µH
4
f_SW = 500kHz
30
T_A = 25ºC
2
20
0
0
10
20
30
40
50
60
Output Current (A)
G001
Multi-Phase
Controller
CSD95372A
Figure 1. Application Diagram
Figure 2. Efficiency and Power Loss
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
NexFET is a trademark of Texas Instruments.
2
All other trademarks are the property of their respective owners.
3
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2013, Texas Instruments Incorporated