CSD87335Q3D Block Datasheet

CSD87335Q3D Datasheet PDF, Equivalent


Part Number

CSD87335Q3D

Description

Synchronous Buck Power Block

Manufacture

etcTI

Total Page 23 Pages
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CSD87335Q3D
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CSD87335Q3D
SLPS574B – FEBRUARY 2016 – REVISED APRIL 2018
CSD87335Q3D Synchronous Buck NexFET™ Power Block
1 Features
1 Half-Bridge Power Block
• Up to 27-V VIN
• 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
• Ultra-Low Inductance Package
• RoHS Compliant
• Halogen Free
• Lead-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 or driver.
Top View
VIN 1
8 VSW
VIN 2
TG 3
PGND
(Pin 9)
7 VSW
6 VSW
TGR 4
5 BG
P0116-01
DEVICE
CSD87335Q3D
CSD87335Q3DT
Device Information(1)
MEDIA
QTY
PACKAGE
13-Inch Reel
7-Inch Reel
2500
250
SON
3.30-mm × 3.30-mm
Plastic Package
SHIP
Tape
and
Reel
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
VDD
ENABLE
PWM
Typical Circuit
VDD
GND
BOOT
DRVH
ENABLE
PWM
LL
DRVL
Driver IC
VIN
TG Control
FET
TGR
BG
VSW
Sync
FET
PGND
CSD87335Q3D
VIN
VOUT
Copyright © 2017, Texas Instruments Incorporated
Typical Power Block Efficiency and Power Loss
100 6
90
80 VGS = 5 V
VIN = 12 V
VOUT = 1.3 V
LOUT = 950 nH
70
fSW = 500 kHz
TA = 25qC
60
0 5 10 15 20
Output Current (A)
4.5
3
1.5
0
25
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.

CSD87335Q3D
CSD87335Q3D
SLPS574B – FEBRUARY 2016 – REVISED APRIL 2018
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Specifications......................................................... 3
5.1 Absolute Maximum Ratings ...................................... 3
5.2 Recommended Operating Conditions....................... 3
5.3 Thermal Information .................................................. 3
5.4 Power Block Performance ........................................ 3
5.5 Electrical Characteristics........................................... 4
5.6 Typical Power Block Device Characteristics............. 5
5.7 Typical Power Block MOSFET Characteristics......... 7
6 Applications and Implementation ...................... 10
6.1 Application Information............................................ 10
6.2 Power Loss Curves ................................................ 12
6.3 Safe Operating Curves (SOA) ................................ 12
6.4 Normalized Curves.................................................. 12
6.5 Calculating Power Loss and SOA .......................... 13
7 Recommended PCB Design Overview .............. 15
7.1 Electrical Performance ............................................ 15
7.2 Thermal Performance ............................................. 16
8 Device and Documentation Support.................. 17
8.1 Receiving Notification of Documentation Updates.. 17
8.2 Community Resources............................................ 17
8.3 Trademarks ............................................................. 17
8.4 Electrostatic Discharge Caution .............................. 17
8.5 Glossary .................................................................. 17
9 Mechanical, Packaging, and Orderable
Information ........................................................... 18
9.1 Q3D Package Dimensions...................................... 18
9.2 Land Pattern Recommendation .............................. 19
9.3 Stencil Recommendation ........................................ 19
9.4 Q3D Tape and Reel Information ............................. 20
9.5 Pin Configuration..................................................... 20
4 Revision History
Changes from Revision A (October 2017) to Revision B
Page
• Updated Figure 33 top layer showing pins 1 and 2 connected. .......................................................................................... 16
Changes from Original (February 2016) to Revision A
Page
• Corrected X & Y axis labels on Figure 29 ............................................................................................................................ 11
• Corrected X & Y axis labels on Figure 30 ............................................................................................................................ 11
2 Submit Documentation Feedback
Copyright © 2016–2018, Texas Instruments Incorporated
Product Folder Links: CSD87335Q3D


Features Product Folder Order Now Technical Doc uments Tools & Software Support & Com munity CSD87335Q3D SLPS574B – FEBRUA RY 2016 – REVISED APRIL 2018 CSD87335 Q3D Synchronous Buck NexFET™ Power Bl ock 1 Features •1 Half-Bridge Power Block • Up to 27-V VIN • 93.5% Syst em Efficiency at 15 A • Up to 25-A Op eration • High-Frequency Operation (U p to 1.5 MHz) • High-Density SON 3.3- mm × 3.3-mm Footprint • Optimized fo r 5-V Gate Drive • Low-Switching Loss es • Ultra-Low Inductance Package • RoHS Compliant • Halogen Free • Le ad-Free Terminal Plating 2 Applications • Synchronous Buck Converters – Hi gh-Frequency Applications – High-Curr ent, Low-Duty Cycle Applications • Mu ltiphase Synchronous Buck Converters POL DC-DC Converters • IMVP, VRM, a nd VRD Applications 3 Description The CSD87335Q3D NexFET™ power block is an optimized design for synchronous buck applications offering high-current, hig h-efficiency, and highfrequency capability in a small 3.3-mm × 3.3-mm outline. Optimized for 5-V gate drive .
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