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TPS40054PWPR Datasheet(PDF) 1 Page - Texas Instruments

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No. de pieza TPS40054PWPR
Descripción Electrónicos  WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
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TPS40054PWPR Datasheet(HTML) 1 Page - Texas Instruments

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5
13
12
16
15
1
2
3
KFF
RT
BP5
SGND
VIN
HDRV
SW
BP10
4
SYNC
11
ILIM
TPS4005xPWP
6
SS/SD
7
VFB
8
COMP
14
BOOST
LDRV 10
PGND
9
VIN
VO
+
+
UDG-03179
8
TPS40054
TPS40055
TPS40057
www.ti.com
SLUS593H – DECEMBER 2003 – REVISED JULY 2012
WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER
Check for Samples: TPS40054, TPS40055, TPS40057
1
FEATURES
CONTENTS
2
Operating Input Voltage 8 V to 40 V
Device Ratings
2
Input Voltage Feed-Forward Compensation
Electrical Characteristics
3
< 1 % Internal 0.7-V Reference
Pin Descriptions
5
Programmable Fixed-Frequency Up to 1-MHz
Voltage Mode Controller
Application Information
7
Internal Gate Drive Outputs for High-Side and
Design Examples
22
Synchronous N-Channel MOSFETs
Additional References
27
16-Pin PowerPAD™ Package (
θJC = 2°C/W)
Thermal Shutdown
DESCRIPTION
The TPS4005x is a family of high-voltage, wide input
Externally Synchronizable
(8 V to 40 V), synchronous, step-down controllers.
Programmable High-Side Sense Short-Circuit
The TPS4005x family offers design flexibility with a
Protection
variety of user-programmable functions, including
Programmable Closed-Loop Soft-Start
soft-start, UVLO, operating frequency, voltage feed-
forward,
high-side
current
limit,
and
loop
TPS40054 Source Only
compensation.
TPS40055 Source/Sink
The TPS4005x uses voltage feed-forward control
TPS40057 Source/Sink With VO Prebias
techniques to provide good line regulation over the
wide (4:1) input voltage range, and fast response to
APPLICATIONS
input line transients. Near-constant modulator gain
Power Modules
with input variation eases loop compensation. The
externally programmable current limit provides pulse-
Networking/Telecom
by-pulse current limit, as well as hiccup mode
Industrial/Servers
operation utilizing an internal fault counter for longer
duration overloads.
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
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2003–2012, 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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