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TPS40130 Datasheet

  • TPS40130

  • TWO-PHASE, SYNCHRONOUS BUCK CONTROLLER WITH INTEGRATED MOSFE...

  • 33頁

  • TI

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TPS40130
SLUS602 鈥?JUNE 2004 鈥?REVISED AUGUST 2004
TWO-PHASE, SYNCHRONOUS BUCK CONTROLLER WITH INTEGRATED MOSFET
DRIVERS
FEATURES
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Two-Phase Interleaved Operation
3-V to 40-V Power Stage Operation Range
Supports Up to 6-V V
OUT
With External Divider
Requires VIN5 @ 50 mA, Typical, Depending
on External MOSFETs and Switching
Frequency
1-碌A(chǔ) Shutdown Current
Programmable Switching Frequency up to 1
MHz/Phase
Current Mode Control with Forced Current
Sharing
Better than 1% Internal 0.7-V Reference
Resistive Divider Sets Direct Output Over
Voltage Threshold and Sets Input
Undervoltage Lockout
True Remote Sensing Differential Amplifier
Resistive or Inductor鈥檚 DCR Current Sensing
30-pin TSSOP Package
Can Be Used with TPS40120 to Provide a 6-Bit
Digitally Controlled Output
LDRV1
VIN5
SW1
HDRV1
BOOT1
OVSET
VOUT
GSNS
DIFFO
CS1
CSRT1
COMP
VREF
DROOP
FB
1
2
3
4
5
6
7
8
9
10
11
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14
15
DBT PACKAGE
(TOP VIEW)
30
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PGND
LDRV2
SW2
HDRV2
BOOT2
SS
UVLO
BP5
AGND
CS2
CSRT2
RT
PGOOD
ILIM
EN/SYNC
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DESCRIPTION
The TPS40130 is a two-phase synchronous buck
controller that is optimized for low-output voltage,
high-output current applications powered from a
supply between 3 V and 40 V. A multi-phase con-
verter offers several advantages over a single power
stage including lower current ripple on the input and
output capacitors, faster transient response to load
steps, improved power handling capabilities, and
higher system efficiency.
Each phase can be operated at a switching frequency
up to 1 MHz, resulting in an effective ripple frequency
of up to 2 MHz at the input and the output. The two
phases operates 180 degrees out-of-phase.
APPLICATIONS
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Graphic Cards
Internet Servers
Networking Equipment
Telecommunications Equipment
DC Power Distributed Systems
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.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright 漏 2004, Texas Instruments Incorporated

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