CSD87335Q3D Datasheet, PDF (1/23 Pages) Texas Instruments – Synchronous Buck NexFET Power Block

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CSD87335Q3D
SLPS574 – FEBRUARY 2016
CSD87335Q3D Synchronous Buck NexFET™ Power Block
1 Features
•1 Half-Bridge Power Block
• Up to 27-V V_IN
• 93.5% System Efficiency at 15 A
• Up to 25-A Operation
• High-Frequency Operation (Up To 1.5 MHz)
• High-Density SON 3.3 mm × 3.3 mm Footprint
• Optimized for 5-V Gate Drive
• Low Switching Losses
• Ultralow Inductance Package
• RoHS Compliant
• Halogen Free
• Pb-Free Terminal Plating
2 Applications
• Synchronous Buck Converters
– High-Frequency Applications
– High-Current, Low-Duty Cycle Applications
• Multiphase Synchronous Buck Converters
• POL DC-DC Converters
• IMVP, VRM, and VRD Applications
3 Description
The CSD87335Q3D NexFET™ power block is an
optimized design for synchronous buck applications
offering high-current, high-efficiency, and high-
frequency capability in a small 3.3 mm × 3.3 mm
outline. Optimized for 5-V gate drive applications, this
product offers a flexible solution capable of offering a
high density power supply when paired with any 5-V
gate drive from an external controller/driver.
Figure 1. Top View
V_{IN 1}
8 ^V_SW
V_{IN 2}
T_{G 3}
P_GND
(Pin 9)
7 ^V_SW
6 ^V_SW
T_{GR 4}
5 B_G
P0116-01
.
Ordering Information⁽¹⁾
Device
Media
Qty
Package
CSD87335Q3D 13-Inch Reel 2500 _{SON 3.3 mm × 3.3}
CSD87335Q3DT 7-Inch Reel 250 ^{mm Plastic Package}
Ship
Tape and
Reel
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
TEXT ADDED FOR SPACING
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Typical Circuit
VDD
ENABLE
PWM
VDD
GND
BOOT
DRVH
ENABLE
PWM
LL
DRVL
Driver IC
VIN
TG
Control
FET
TGR
BG
VSW
Sync
FET
PGND
CSD87335Q3D
Typical Power Block Efficiency and Power Loss
VIN
100
6
90
4.5
VOUT
80 ^{VGS = 5 V}
3
V_IN = 12 V
V_OUT = 1.3 V
L_OUT = 950 nH
70
f_SW = 500 kHz
T_A = 25qC
1.5
60
0
0
5
10
15
20
25
Output Current (A)
D000
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.