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IMPORTANT NOTICE

Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements,
and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should
obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are
sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment.

TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard
warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where
mandated by government requirements, testing of all parameters of each product is not necessarily performed.

TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and
applications using TI components. To minimize the risks associated with customer products and applications, customers should provide
adequate design and operating safeguards.

TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right,
or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information
published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a
warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual
property of the third party, or a license from TI under the patents or other intellectual property of TI.

Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied
by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive
business practice. TI is not responsible or liable for such altered documentation. Information of third parties may be subject to additional
restrictions.

Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all
express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not
responsible or liable for any such statements.

TI products are not authorized for use in safety-critical applications (such as life support) where a failure of the TI product would reasonably
be expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governing
such use. Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products
and any use of TI products in such safety-critical applications, notwithstanding any applications-related information or support that may be
provided by TI. Further, Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in
such safety-critical applications.

TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products are
specifically designated by TI as military-grade or "enhanced plastic." Only products designated by TI as military-grade meet military
specifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely at
the Buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use.

TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products are
designated by TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated
products in automotive applications, TI will not be responsible for any failure to meet such requirements.

Following are URLs where you can obtain information on other Texas Instruments products and application solutions:

Products

Applications

Audio

www.ti.com/audio

Communications and Telecom

www.ti.com/communications

Amplifiers

amplifier.ti.com

Computers and Peripherals

www.ti.com/computers

Data Converters

dataconverter.ti.com

Consumer Electronics

www.ti.com/consumer-apps

DLP® Products

www.dlp.com

Energy and Lighting

www.ti.com/energy

DSP

dsp.ti.com

Industrial

www.ti.com/industrial

Clocks and Timers

www.ti.com/clocks

Medical

www.ti.com/medical

Interface

interface.ti.com

Security

www.ti.com/security

Logic

logic.ti.com

Space, Avionics and Defense

www.ti.com/space-avionics-defense

Power Mgmt

power.ti.com

Transportation and

www.ti.com/automotive

Automotive

Microcontrollers

microcontroller.ti.com

Video and Imaging

www.ti.com/video

RFID

www.ti-rfid.com

Wireless

www.ti.com/wireless-apps

RF/IF and ZigBee® Solutions

www.ti.com/lprf

TI E2E Community Home Page

e2e.ti.com

Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265

Copyright © 2011, Texas Instruments Incorporated

Содержание TPS62730

Страница 1: ...l Layouts 5 5 3 Bill of Materials 7 6 Oscilloscope Traces 7 List of Figures 1 EVM Schematic and Evaluation Setup 3 2 TPS62730 EVM Board Schematic 5 3 Assembly Layer 5 4 Top Layer 6 5 Bottom Layer 6 6...

Страница 2: ...IC will be in an unknown state mode and the output voltage could be anywhere between the input voltage and the regulation voltage The EVM has a pullup resistor on the ON BYP pin to Vin so that it stay...

Страница 3: ...d of DMM 2 J5 2 SNS output Negative lead of DMM 2 J6 1 2 GND Negative lead to system load or load resistance J7 1 STAT Positive lead of DMM meter 3 J7 2 GND Negative lead of DMM meter 3 JP1 1 2 ON App...

Страница 4: ...may be required depending on power supply decay single sequence trigger on CH2 and removing input power The phase node is shown going into PFM then disabling switching and then indicating bypass mode...

Страница 5: ...nd Bill of Materials 5 1 Schematic Figure 2 TPS62730 EVM Board Schematic 5 2 Physical Layouts Figure 3 Assembly Layer 5 SLVU455 April 2011 TPS62730 Stepdown Converter With Bypass Mode for Ultralow Pow...

Страница 6: ...f Materials www ti com Figure 4 Top Layer Figure 5 Bottom Layer 6 TPS62730 Stepdown Converter With Bypass Mode for Ultralow Power Wireless SLVU455 April 2011 Applications Submit Documentation Feedback...

Страница 7: ...g 0 100 inch 2 54 mm 3 PEC02SAAN Sullins 1 L1 2 2 H Inductor SMT 0 8 A 0 23 0805 LQM21PN2R2NGC muRata 1 R1 10 0 k Resistor chip 1 16W 1 0603 Std Std 1 R2 1 00 M Resistor chip 1 16W 1 0603 Std Std 1 U1...

Страница 8: ...e CH2 Output Ripple 0 2 s div Figure 8 PFM Mode at Low Load 11 mA CH1 Phase CH2 Output Ripple 1 s div 8 TPS62730 Stepdown Converter With Bypass Mode for Ultralow Power Wireless SLVU455 April 2011 Appl...

Страница 9: ...Input Power CH1 Phase Node CH2 STAT Pin Figure 10 Transition From Converter Switch Mode to Bypass Mode by Pulling ON BYP Pin Low 9 SLVU455 April 2011 TPS62730 Stepdown Converter With Bypass Mode for...

Страница 10: ...erter Switch Mode by Pulling ON BYP Pin High Figure 12 Startup by Hot Plugging the Input Power Source 10 TPS62730 Stepdown Converter With Bypass Mode for Ultralow Power Wireless SLVU455 April 2011 App...

Страница 11: ...ad Step From 50 mA to 100 mA Figure 14 Transient Output Load Step From 100 mA to 50 mA 11 SLVU455 April 2011 TPS62730 Stepdown Converter With Bypass Mode for Ultralow Power Wireless Applications Submi...

Страница 12: ...ct This notice contains important safety information about temperatures and voltages For additional information on TI s environmental and or safety programs please contact the TI application engineer...

Страница 13: ...orized for use in safety critical applications such as life support where a failure of the TI product would reasonably be expected to cause severe personal injury or death unless officers of the parti...

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