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TPS544B20 Fiches technique(PDF) 1 Page - Texas Instruments

No de pièce TPS544B20
Description  TPS544x20 4.5-V to 18-V, 20-A, and 30-A SWIFT??Synchronous Buck Converters with PMBus?
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TPS544B20 Fiches technique(HTML) 1 Page - Texas Instruments

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Load Current (A)
0.6 V
0.8 V
1.0 V
1.2 V
1.8 V
2.5 V
3.3 V
C003
V
IN = 12 V
L = 410 nH
Snubber = Open
f
SW = 500 kHz
R
DCR = 0.3 mŸ
R
BOOT = 0 Ÿ
Output Voltage
Product
Folder
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Technical
Documents
Tools &
Software
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Community
TPS544B20, TPS544C20
SLUSB69 – MAY 2014
TPS544x20 4.5-V to 18-V, 20-A, and 30-A SWIFT™
Synchronous Buck Converters with PMBus™
1 Features
3 Description
The
TPS544B20
and
TPS544C20
devices
are
1
PMBus-Enabled Converters: 20 A, 30 A
PMBus compatible, non-isolated DC-DC Integrated
4.5-V to 18-V input, 0.6-V to 5.5-V Output
FET converters, capable of high-frequency operation
5 mm × 7 mm LQFN Package with 0.5-mm Pitch
and delivering 20-A , or 30-A current output from a
5 mm × 7 mm package, enabling high-power density
Single Thermal Pad
and fast transient performance with minimal PCB
Integrated 4.5-m
Ω and 2.0-mΩ Stacked
area. The PMBus interface provides for converter
NexFET™ Power Stage
configuration as well as monitoring of key parameters
600-mV, 0.5% Reference
including output voltage, current and an optional
external
temperature.
High-frequency,
low-loss
Lossless, Low-Side MOSFET Current Sensing
switching, provided by an integrated NexFET power
Selectable D-CAP™ and D-CAP2™ Mode Control
stage and optimized drivers, allows for very high-
Differential Remote Sensing
density power solutions and reduced inductor and
Monotonic Start-Up into Pre-Biased Output
filter capacitor sizes. Response to fault conditions can
be set to either restart or latch off depending on
Output Voltage Margin and Trim
system requirements.
Output Voltage and Output Current Reporting
External Temperature Monitoring with 2N3904
Device Information(1)
Programmable via PMBus
PART NAME
PACKAGE
BODY SIZE (NOM)
TPS544B20
Overcurrent Protection
LQFN (40)
5.00 mm × 7.00 mm
TPS544C20
UVLO, Soft-Start
(1) For all available packages, see the orderable addendum at
PGOOD, OV, UV, OT Levels
the end of the datasheet.
Fault Responses
Turn-On and Turn-Off Delays
Efficiency vs Output Current
Thermal Shutdown
Pin Compatible 20-A, 30-A Converters
2 Applications
Test and Instrumentation
Ethernet Switches, Optical Switches, Routers,
Base Stations
Servers
Enterprise Storage SSD
High-Density Power Solutions
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.


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