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TPS53127PWR Datasheet(PDF) 1 Page - Texas Instruments

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Part # TPS53127PWR
Description  DUAL SYNCHRONOUS STEP-DOWN CONTROLLER FOR LOW VOLTAGE POWER RAILS
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS53127PWR Datasheet(HTML) 1 Page - Texas Instruments

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TPS53127
www.ti.com
SLVSA93 – MARCH 2010
DUAL SYNCHRONOUS STEP-DOWN CONTROLLER
FOR LOW VOLTAGE POWER RAILS
Check for Samples: TPS53127
1
FEATURES
700-kHz Switching Frequency
2
D-CAP2™ Mode Control
Cycle-by-Cycle Over-Current Limiting Control
Fast Transient Response
30-mV to 300-mV OCP Threshold Voltage
No External Parts Required for Loop
Thermally Compensated OCP by 4000 ppm/°C
Compensation
at ITRIP
Compatible With Ceramic Output
APPLICATIONS
Capacitors
Point-of-Load Regulation in Low Power
High Initial Reference Accuracy (±1%)
Systems for Wide Range of Applications
Low Output Ripple
Digital TV Power Supply
Wide Input Voltage Range: 4.5 V to 24 V
Networking Home Terminal
Output Voltage Range: 0.76 V to 5.5 V
Digital Set-Top Box (STB)
Low-Side RDS(ON) Loss-Less Current Sensing
DVD Player/Recorder
Adaptive Gate Drivers with Integrated Boost
Gaming Consoles
Diode
Adjustable Soft Start
Non-Sinking Pre-Biased Soft Start
DESCRIPTION
The TPS53127 is a dual, adaptive on-time D-CAP2™ mode synchronous buck controller. The part enables
system designers to cost effectively complete the suite of various end equipment's power bus regulators with a
low external component count and low standby consumption. The main control loop for the TPS53127 uses the
D-CAP2™ Mode topology which provides a very fast transient response with no external component.
The TPS53127 also has a proprietary circuit that enables the device to adapt not only low equivalent series
resistance (ESR) output capacitors such as POSCAP/SP-CAP, but also ceramic capacitor. The part provides a
convenient and efficient operation with conversion voltages from 4.5 V to 24 V and output voltage from 0.76 V to
5.5 V.
The TPS53127 is available in the 24 pin RGE/PW package, and is specified from –40°C to 85°C ambient
temperature range.
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
D-CAP2 is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2010, 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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