CSD95375Q4M_15 Datasheet, PDF (1/23 Pages) Texas Instruments – CSD95375Q4M Synchronous Buck NexFET™ Power Stage

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CSD95375Q4M
SLPS430A – AUGUST 2013 – REVISED AUGUST 2014
CSD95375Q4M Synchronous Buck NexFET™ Power Stage
1 Features
•1 93% System Efficiency at 15 A
• Max Rated Continuous Current 25 A, Peak 60 A
• High Frequency Operation (up to 2 MHz)
• High Density - SON 3.5 × 4.5-mm Footprint
• Ultra-Low Inductance Package
• System Optimized PCB Footprint
• 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
• Ultrabook/Notebook DC/DC Converters
• Multiphase Vcore and DDR Solutions
• Point of Load Synchronous Buck in Networking,
Telecom, and Computing Systems
3 Description
The CSD95375Q4M 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 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 a high current, high efficiency, and high
speed switching device in a small 3.5 × 4.5-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.
Device
CSD95375Q4M
CSD95375Q4MT
Device Information⁽¹⁾
Media
Qty
Package
Ship
13-Inch Reel 2500 _{SON 3.5 × 4.5 mm Tape and}
7-Inch Reel 250 ^{Plastic Package}
Reel
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
SPACER
Application Diagram
CSD95375
V_CC
V_OUT
VCC
PWM1
+Is1
VOUT
-Is2
+NTC
SS
-NTC
RT
+Is2
-Is2
PWM2
PGND
V_IN
V_OUT
Typical Power Stage Efficiency and Power Loss
100
7
90
6
80
V_DD = 5V
5
V_IN = 12V
70
V_OUT = 1.8V
4
L_OUT = .29µH
60
f_SW = 500kHz
3
T_A = 25ºC
50
2
40
1
30
0
5
10
15
20
Output Current (A)
0
25
G001
Multi-Phase
Controller
1
CSD95375
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.