CSD95378BQ5M_15 Datasheet, PDF (1/13 Pages) Texas Instruments – CSD95378BQ5M Synchronous Buck NexFET™ Smart Power Stage

Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
CSD95378BQ5M
SLPS504A – APRIL 2014 – REVISED JULY 2014
CSD95378BQ5M Synchronous Buck NexFET™ Smart Power Stage
1 Features
•1 60 A Continuous Operating Current Capability
• 93.4% System Efficiency at 30 A
• Low Power Loss of 2.8 W at 30 A
• High Frequency Operation (up to 1.25 MHz)
• Diode Emulation Mode With FCCM
• Temperature Compensated Bi-Directional Current
Sense
• Analog Temperature Output (400 mV at 0°C)
• Fault Monitoring
– Highside Short, Overcurrent, and
Overtemperature Protection
• 3.3 V and 5 V PWM Signal Compatible
• Tri-State PWM Input
• Integrated Bootstrap Diode
• Optimized Deadtime for Shoot Through Protection
• High Density SON 5 × 6 mm Footprint
• Ultra-Low Inductance Package
• System Optimized PCB Footprint
• 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 VR11.x / VR12.x V-core and
Memory Synchronous Converters
3 Description
The CSD95378BQ5M NexFET™ smart 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 is optimized
to help reduce design time and simplify the
completion of the overall system design.
Device
CSD95378BQ5M
CSD95378BQ5MT
Device Information⁽¹⁾
Media
Qty
Package
13-Inch Reel
7-Inch Reel
2500
250
SON 5- × 6-
mm Package
Ship
Tape and
Reel
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
SPACER
SPACER
Application Diagram
CSD95378B
V_CC
V_OUT
VOUT
VCC
PWM1
+Is1
-Is2
SS
TSEN
RT
+Is2
-Is2
PWM2
PGND
V_IN
V_OUT
Typical Power Stage Efficiency and Power Loss
100
14
90
12
80
10
70
V_DD = 5V
8
V_IN = 12V
60
V_OUT = 1.2V
6
L_OUT = .225µH
50
f_SW = 500kHz
4
T_A = 25ºC
40
2
30
0
0
10
20
30
40
50
60
Output Current (A)
G001
Multiphase
Controller
CSD95378B
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.