background image

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

Automotive and Transportation

www.ti.com/automotive

Amplifiers

amplifier.ti.com

Communications and Telecom

www.ti.com/communications

Data Converters

dataconverter.ti.com

Computers and Peripherals

www.ti.com/computers

DLP

®

Products

www.dlp.com

Consumer Electronics

www.ti.com/consumer-apps

DSP

dsp.ti.com

Energy and Lighting

www.ti.com/energy

Clocks and Timers

www.ti.com/clocks

Industrial

www.ti.com/industrial

Interface

interface.ti.com

Medical

www.ti.com/medical

Logic

logic.ti.com

Security

www.ti.com/security

Power Mgmt

power.ti.com

Space, Avionics and Defense

www.ti.com/space-avionics-defense

Microcontrollers

microcontroller.ti.com

Video and Imaging

www.ti.com/video

RFID

www.ti-rfid.com

OMAP Mobile Processors

www.ti.com/omap

Wireless Connectivity

www.ti.com/wirelessconnectivity

TI E2E Community Home Page

e2e.ti.com

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

Copyright

©

2012, Texas Instruments Incorporated

Summary of Contents for TPS62125EVM-044

Page 1: ...t of Figures 1 Efficiency R1 R2 and R3 not installed JP1 connected between ON and EN 3 2 Load Regulation 4 3 Line Regulation With Iout 250 mA 4 4 Loop Response With Vin 12 V and Iout 250 mA 4 5 Input...

Page 2: ...efficiency 93 3 Soft start time Ramp time of the output voltage 330 s 1 3 Modifications The printed circuit board PCB for this EVM accommodates additional input and output capacitors as well as a feed...

Page 3: ...n off the IC Do not install the supplied jumper to utilize the adjustable enable threshold voltage feature of the IC JP2 PG PG pin pullup voltage jumper Place the supplied jumper on JP2 to connect the...

Page 4: ...0 30 0 30 60 90 120 150 180 Phase deg 60 50 40 30 20 10 0 10 20 30 40 50 60 Gain dB 100 1k 10k 100k 1M Frequency Hz Phase Gain TPS62125EVM 044 Test Results www ti com Figure 2 Load Regulation Figure 3...

Page 5: ...ime 500 ns div www ti com TPS62125EVM 044 Test Results Figure 5 Input Voltage Ripple With Vin 12 V and Iout 250 mA Figure 6 Output Voltage Ripple With Vin 12 V and Iout 250 mA 5 SLVU659A March 2012 Re...

Page 6: ...Vin 5 V div Vout 1 V div PG 2 V div TPS62125EVM 044 Test Results www ti com Figure 7 Load Transient Response With Vin 12 V Figure 8 Start Up on Vin With 250 mA Load 6 TPS62125EVM 044 Evaluation Module...

Page 7: ...G 2 V div t Time 100 s div m www ti com TPS62125EVM 044 Test Results Figure 9 Start Up on EN With 250 mA Load Figure 10 Shutdown on EN With 250 mA Load 7 SLVU659A March 2012 Revised March 2012 TPS6212...

Page 8: ...Test Results www ti com Figure 11 Prebias Start Up and Shutdown on EN With 250 mA Load Figure 12 Thermal Performance With Vin 12 V and Iout 250 mA 8 TPS62125EVM 044 Evaluation Module SLVU659A March 20...

Page 9: ...ovides the TPS62125EVM 044 board layout and illustrations Figure 13 Top Silk Layer Figure 14 Top Layer 9 SLVU659A March 2012 Revised March 2012 TPS62125EVM 044 Evaluation Module Submit Documentation F...

Page 10: ...ww ti com Figure 15 Bottom Layer Figure 16 Top Assembly Layer 10 TPS62125EVM 044 Evaluation Module SLVU659A March 2012 Revised March 2012 Submit Documentation Feedback Copyright 2012 Texas Instruments...

Page 11: ...7 SW 8 PG 9 ETPAD U1 TPS62125DSG 1 2 JP2 C5 22uF C2 10uF C4 1 2 3 JP1 C3 C6 TP1 VIN VIN www ti com Schematic and Bill of Materials 5 Schematic and Bill of Materials This section provides the TPS62125E...

Page 12: ...03 Std Std 1 R3 274k Resistor Chip 1 16W 1 0603 Std Std 1 R5 576k Resistor Chip 1 16W 1 0603 Std Std 1 R6 100k Resistor Chip 1 16W 1 0603 Std Std 1 U1 TPS62125 IC 3V 17V 300mA Buck Converter with Adju...

Page 13: ...ncy energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC or ICES 003 rules which are designed to provide reasonable protection against radio fr...

Page 14: ...na type and its gain should be so chosen that the equivalent isotropically radiated power e i r p is not more than that necessary for successful communication This radio transmitter has been approved...

Page 15: ...oduct only after you obtained the license of Test Radio Station as provided in Radio Law of Japan with respect to this product or 3 Use of this product only after you obtained the Technical Regulation...

Page 16: ...property damage personal injury or death If there are questions concerning these ratings please contact a TI field representative prior to connecting interface electronics including input power and in...

Page 17: ...or 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...

Page 18: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments TPS62125EVM 044...

Reviews: