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TPS40193 Fiches technique(PDF) 1 Page - Texas Instruments

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No de pièce TPS40193
Description  4.5-V TO 18-V INPUT 10-PIN SYNCHRONOUS BUCK CONTROLLER WITH POWER GOOD
Download  38 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TPS40193 Fiches technique(HTML) 1 Page - Texas Instruments

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1
FEATURES
CONTENTS
DESCRIPTION
APPLICATIONS
1
2
3
4
10
9
8
7
HDRV
SW
BOOT
LDRV
ENABLE
FB
COMP
VDD
TPS40192/3
5
6
BP5
PGD
11
GND
UDG−06063
VOUT
ON/OFF
External Logic
Supply
5V or Less,
or BP5
VIN
VOUT
TPS40192, TPS40193
SLUS719B – MARCH 2007 – REVISED SEPTEMBER 2007
www.ti.com
4.5-V TO 18-V INPUT 10-PIN SYNCHRONOUS BUCK CONTROLLER WITH POWER GOOD
• Input Operating Voltage Range: 4.5 V to 18 V
Device Ratings
3
• Up to 20-A Output Currents
Electrical Characteristics
4
• Supports Pre-Biased Outputs
Typical Characteristics
6
• 0.5% 0.591-V Reference
• 600 kHz (TPS40192) and 300 kHz (TPS40193)
Terminal Information
9
Switching Frequencies
Application Information
11
• Three Selectable Thermally Compensated
Design Example
17
Short Circuit Protection Levels
Additional References
27
• Hiccup Restart from Faults
• Internal 5-V Regulator
• High and Low side FET RDS
ON Current
Sensing
TPS40192
and
TPS40193
are
cost-optimized
synchronous buck controllers that operate from 4.5 V
• 10-Pin 3 mm × 3 mm SON Package
to 18 V input. These controllers implement a
• Internal 4-ms Soft-Start Time
voltage-mode control architecture with the switching
• Thermal Shutdown Protection at 145°C
frequency fixed at either 600 kHz (TPS40192) or 300
kHz (TPS40193). The higher switching frequency
facilitates the use of smaller inductor and output
capacitors,
thereby
providing
a
compact
• Cable Modem CPE
power-supply
solution.
An
adaptive
anti-cross
• Digital Set Top Box
conduction scheme is used to prevent shoot through
• Graphics/Audio Cards
current in the power FETs.
• Entry Level and Mid-Range Servers
SIMPLIFIED APPLICATION DIAGRAM
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.
PRODUCTION DATA information is current as of publication date.
Copyright © 2007, 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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