CSD87381P_15 Datasheet, PDF (1/25 Pages) Texas Instruments – CSD87381P Synchronous Buck NexFET™ Power Block II

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CSD87381P
SLPS405F – MARCH 2013 – REVISED MARCH 2015
CSD87381P Synchronous Buck NexFET™ Power Block II
1 Features
•1 Half-Bridge Power Block
• 90% System Efficiency at 10 A
• Up to 15 A Operation
• High Density – 3 × 2.5 mm LGA Footprint
• Double Side Cooling Capability
• Ultra-Low Profile – 0.48 mm Max
• Optimized for 5 V Gate Drive
• Low Switching Losses
• Low Inductance Package
• RoHS Compliant
• Halogen Free
• Pb Free
2 Applications
• Synchronous Buck Converters
– High Current, Low Duty Cycle Applications
• Multiphase Synchronous Buck Converters
• POL DC-DC Converters
3 Description
The CSD87381P NexFET™ power block II is a highly
optimized design for synchronous buck applications
offering high current and high efficiency capability in a
small 3 mm × 2.5 mm outline. Optimized for 5 V gate
drive applications, this product offers an efficient and
flexible solution capable of providing a high density
power supply when paired with any 5 V gate driver
from an external controller/driver.
TEXT ADDED FOR SPACING
Device Information⁽¹⁾
Device
Media
Qty
Package
CSD87381P
CSD87381PT
13-Inch Reel
7-Inch Reel
2500
250
3 × 2.5 LGA
Ship
Tape and
Reel
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
TEXT ADDED FOR SPACING
1
V_IN
TG
VDD
ENABLE
PWM
Typical Circuit
VDD
GND
ENABLE
PWM
Driver IC
BOOT
DRVH
LL
DRVL
VIN
TG
VSW
BG
PGND
CSD87381P
P_GND
BG
V_SW
Typical Power Block Efficiency and Power Loss
VIN
100
7
90
6
80
V_GS = 5V
5
V_IN = 12V
VOUT
70
V_OUT = 1.3V
L_OUT = 0.95µH
4
60
f_SW = 500kHz
3
T_A = 25ºC
50
2
40
1
30
0
3
6
9
12
Output Current (A)
0
15
G001
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.