CSD95490Q5MC Datasheet, PDF (1/14 Pages) Texas Instruments – Synchronous Buck NexFET Smart Power Stage

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CSD95490Q5MC
SLPS669 – MARCH 2017
CSD95490Q5MC Synchronous Buck NexFET™ Smart Power Stage
1 Features
•1 75-A Continuous Operating Current Capability
• Over 95% System Efficiency at 30 A
• High-Frequency Operation (up to 1.25 MHz)
• Diode Emulation Function
• Temperature Compensated Bi-Directional Current
Sense
• Analog Temperature Output
• Fault Monitoring
• 3.3-V and 5-V PWM Signal Compatible
• Tri-State PWM Input
• Integrated Bootstrap Switch
• Optimized Dead Time for Shoot-Through
Protection
• High-Density QFN 5-mm × 6-mm Footprint
• Ultra-Low-Inductance Package
• System Optimized PCB Footprint
• Thermally Enhanced Topside Cooling
• RoHS Compliant – Lead-Free Terminal Plating
• Halogen Free
2 Applications
• Multiphase Synchronous Buck Converters
– High-Frequency Applications
– High-Current, Low-Duty Cycle Applications
• POL DC-DC Converters
• Memory and Graphic Cards
• Desktop and Server VR12.x / VR13.x V-Core
Synchronous Buck Converters
• High-Current POL for Network Communications
3 Description
The CSD95490Q5MC 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 power MOSFETs to
complete the power stage switching function. This
combination produces high-current, high-efficiency,
and high-speed switching capability in a small 5-mm
× 6-mm outline package. It also integrates the
accurate current sensing and 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.
Application Diagram
TPS53679
AVSP
AVSN
PWM1
ASKIP#
VREF
ADDR
3.3V
V3P3
P12V
VIN_CSNIN
VCCIO
CSPIN
BEN_VCCIO
SCLK
SDIO
SALERT#
PIN_ALT#
VR_HOT#
SMB_CLK
SMB_ALERT#
SMB_DIO
AVR_RDY
BVR_RDY
AVR_EN
VR_FAULT#
RESET#
AGND
ACSP1
TSEN
APWM6
ACSP6
VREF
BVSN
BVSP
BPWM1
BSKIP#
BCSP1
P12V
VIN
BOOT BOOT_R
PWM CSD95490Q5MC VOS
EN/FCCM
P5V
VSW
VDD
TAO
LSET PGND IOUT REFIN
P12V
VIN
BOOT BOOT_R
PWM CSD95490Q5MC VOS
P5V ^EN/FCCM
VSW
VDD
TAO
LSET PGND IOUT REFIN
P12V
VIN
BOOT BOOT_R
PWM CSD95492QVM VOS
P5V ^EN/FCCM
VSW
VDD
TAO
PVDD
LSET PGND IOUT REFIN
Device Information⁽¹⁾
DEVICE
MEDIA QTY
PACKAGE
SHIP
CSD95490Q5MC 13-Inch Reel 2500
CSD95490Q5MCT 7-Inch Reel 250
QFN
5.00-mm × 6.00-mm
Package
Tape
and
Reel
LOAD
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Power Stage Efficiency and Power Loss
100
21
90
18
80
15
V_DD = 5 V
70 V_IN = 12 V
12
V_OUT = 1.8 V
60
L_OUT = 150 nH
f_SW = 600 kHz
9
T_A = 25qC
50
6
LOAD
40
3
30
0
0
15
30
45
60
75
Output Current (A)
D000
Copyright © 2016, Texas Instruments Incorporated
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.