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TPS40071 Fiches technique(PDF) 1 Page - Texas Instruments

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No de pièce TPS40071
Description  HIGH-EFFICIENCY MIDRANGE INPUT SYNCHRONOUS BUCK CONTROLLER WITH VOLTAGE FEED-FORWARD
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TPS40071 Fiches technique(HTML) 1 Page - Texas Instruments

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1
FEATURES
DESCRIPTION
APPLICATIONS
SIMPLIFIED APPLICATION DIAGRAM
VDG−03170
5
13
12
16
15
1
2
3
KFF
RT
LVBP
SGND
VDD
HDRV
SW
DBP
4
PGD
11
ILIM
TPS40070PWP
6
SS
7
FB
8
COMP
14
BOOST
LDRV
10
PGND
9
Powergood
VOUT
VDD
VOUT
VDD
TPS40070
TPS40071
www.ti.com .................................................................................................................................................. SLUS582J – DECEMBER 2003 – REVISED APRIL 2009
HIGH-EFFICIENCY MIDRANGE INPUT SYNCHRONOUS
BUCK CONTROLLER WITH VOLTAGE FEED-FORWARD
2
• Operation Over 4.5-V to 28-V Input Range
• Programmable Fixed-Frequency up to 1-MHz
The TPS4007x is a mid voltage, wide input (4.5 V to
28 V), synchronous, step-down converter.
Voltage-Mode Controller
• Predictive Gate Drive™ With Anti-Cross
The TPS4007x offers design flexibility with a variety
Conduction Circuitry
of user programmable functions, including; soft-start,
UVLO, operating frequency, voltage feed-forward and
• <1% Internal 700-mV Reference
high-side FET sensed short circuit protection.
• Internal Gate Drive Outputs for High-Side and
The TPS4007x incorporates MOSFET gate drivers for
Synchronous N-Channel MOSFETs
external
N-channel
high-side
and
synchronous
• 16-Pin PowerPAD™ Package
rectifier (SR) MOSFETs. Gate drive logic incorporates
• Thermal Shutdown Protection
predictive anti-cross conduction circuitry to prevent
simultaneous high-side and synchronous rectifier
• TPS40070: Source Only
conduction, while minimizing to eliminating current
• TPS40071: Source/Sink
flow in the body diode of the SR FET. The TPS40071
• Programmable High-Side Sense Short Circuit
allows the supply output to sink current at all times.
Protection
The TPS40070 implements a source-only power
supply.
• Power Modules
• Networking/Telecom
• PCI Express
• Industrial
• Servers
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
Predictive Gate Drive, PowerPAD are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2003–2009, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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