TPS53014_15 Datasheet, PDF (1/21 Pages) Texas Instruments – Single Synchronous Step-down Controller for Low Voltage Power Rails

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TPS53014
SLVSBF1 – MAY 2012
Single Synchronous Step-down Controller for Low Voltage Power Rails
Check for Samples: TPS53014
FEATURES
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•2 D-CAP2™ Mode Control
– Fast Transient Response
– No External Parts Required For Loop
Compensation
– Compatible with Ceramic Output
Capacitors
• High Initial Reference Accuracy (±1%)
• Wide Input Voltage Range: 4.5 V to 28 V
• Output Voltage Range: 0.77 V to 7.0 V
• Low-Side R_DS(on) Loss-Less Current Sensing
• Adjustable Soft Start
• Non-Sinking Pre-Biased Soft Start
• 500 kHz Switching Frequency
• Cycle-By-Cycle Over Current Limiting Control
• Auto-Skip Eco-Mode^TM for High Efficiency at
Light load
• OCL/OVP/UVP/UVLO/TSD Protections
• Adaptive Gate Drivers with Integrated Boost
PMOS Switch
• Thermally Compensated OCP, 4000 ppm/°C
• 10 pin VSSOP
APPLICATIONS
• Point-of-Load Regulation in Low Power
Systems for Wide Range of Applications
– Digital TV Power Supply
– Networking Home Terminal
– Digital Set Top Box (STB)
– DVD Player / Recorder
– Gaming Consoles and Other
DESCRIPTION
The TPS53014 is a single, adaptive on-time D-CAP2™ mode synchronous buck controller. The TPS53014
enables system designers to complete the suite of various end equipment's power bus regulators with cost
effective low external component count and low standby current solution. The main control loop for the
TPS53014 uses the D-CAP2™ mode control which provides a very fast transient response with no external
compensation components. The Adaptive on-time control supports seamless transition between PWM mode at
higher load condition and Eco-mode™ operation at light load. Eco-mode™ allows the TPS53014 to maintain high
efficiency during lighter load conditions. The TPS53014 is also able to adapt to both low equivalent series
resistance (ESR) output capacitors such as POSCAP or SP-CAP and ultra-low ESR ceramic capacitors. The
device provides convenient and efficient operation with input voltages from 4.5 V to 28 V and output voltage from
0.77 V to 7.0 V.
The TPS53014 is available in the 3.0mm x 3.0 mm 10-pin VSSOP (DGS) package, and is specified for an
ambient temperature range of –40°C to 85°C.
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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.
D-CAP2, Eco-mode, Eco-Mode are trademarks of Texas Instruments.
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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 © 2012, Texas Instruments Incorporated