CSD95377Q4M Datasheet, PDF (1/20 Pages) Texas Instruments – Synchronous Buck NexFET Power Stage

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CSD95377Q4M
SLPS584 – DECEMBER 2015
CSD95377Q4M Synchronous Buck NexFET™ Power Stage
1 Features
•1 Above 94% System Efficiency at 15 A
• Max Rated Continuous Current 30 A
• High Frequency Operation (up to 2 MHz)
• High Density – SON 3.5 mm × 4.5 mm Footprint
• Ultra-Low Inductance Package
• System-Optimized PCB Footprint
• 3.3 V and 5 V PWM Signal Compatible
• Diode Emulation Mode With Forced Continuous
Conduction Mode (FCCM)
• Input Voltages to 16 V
• Tri-State PWM Input
• Integrated Bootstrap Diode
• Shoot Through Protection
• RoHS Compliant – Lead Free Terminal Plating
• Halogen Free
SPACER
Application Diagram
V_IN
2 Applications
• Point-of-Load Synchronous Buck in Server,
Networking, Telecom Systems
• Multiphase Vcore, DDR, and Graphics Solutions
3 Description
The CSD95377Q4M 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. The
driver IC has built-in selectable diode emulation
function enables discontinuous conduction mode
(DCM) operation to improve light load efficiency. This
combination produces high current, high efficiency,
and high speed switching capability in a small 3.5 mm
× 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 Information⁽¹⁾
ORDER NUMBER
PACKAGE
MEDIA AND QTY
CSD95377Q4M
CSD95377Q4MT
SON 3.5 × 4.5 mm
Plastic Package
13-inch reel 2500
7-inch reel 250
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Power Stage Efficiency and Power Loss
100
9
CSD95377Q4M
90
7.5
V_CC
V_OUT
VOUT
VCC
PWM1
+Is1
-Is2
SS
RT
-Is2
+Is2
PWM2
PGND
V_OUT
80
6
V_DD = 5 V
70
V_IN = 12 V
4.5
V_OUT = 1.8 V
L_OUT = 0.29 PH
60
f_SW = 500 kHz
3
T_A = 25qC
50
1.5
40
0
0
5
10
15
20
25
30
Output Current (A)
D000
Multi-Phase
Controller
CSD95377Q4M
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.