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EVALUATION BOARD/KIT/MODULE (EVM)

WARNINGS, RESTRICTIONS AND DISCLAIMERS

For Feasibility Evaluation Only, in Laboratory/Development Environments. Unless otherwise indicated, this EVM is not a finished
electrical equipment and not intended for consumer use. It is intended solely for use for preliminary feasibility evaluation in
laboratory/development environments by technically qualified electronics experts who are familiar with the dangers and application risks
associated with handling electrical mechanical components, systems and subsystems. It should not be used as all or part of a finished end
product.

Your Sole Responsibility and Risk. You acknowledge, represent and agree that:

1.

You have unique knowledge concerning Federal, State and local regulatory requirements (including but not limited to Food and Drug
Administration regulations, if applicable) which relate to your products and which relate to your use (and/or that of your employees,
affiliates, contractors or designees) of the EVM for evaluation, testing and other purposes.

2.

You have full and exclusive responsibility to assure the safety and compliance of your products with all such laws and other applicable
regulatory requirements, and also to assure the safety of any activities to be conducted by you and/or your employees, affiliates,
contractors or designees, using the EVM. Further, you are responsible to assure that any interfaces (electronic and/or mechanical)
between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to
minimize the risk of electrical shock hazard.

3.

You will employ reasonable safeguards to ensure that your use of the EVM will not result in any property damage, injury or death, even
if the EVM should fail to perform as described or expected.

4.

You will take care of proper disposal and recycling of the EVM’s electronic components and packing materials.

Certain Instructions. It is important to operate this EVM within TI’s recommended specifications and environmental considerations per the
user guidelines. Exceeding the specified EVM ratings (including but not limited to input and output voltage, current, power, and
environmental ranges) may cause 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 intended loads. Any loads applied outside of the
specified output range may result in unintended and/or inaccurate operation and/or possible permanent damage to the EVM and/or
interface electronics. Please consult the EVM User's Guide prior to connecting any load to the EVM output. If there is uncertainty as to the
load specification, please contact a TI field representative. During normal operation, some circuit components may have case temperatures
greater than 60°C as long as the input and output are maintained at a normal ambient operating temperature. These components include
but are not limited to linear regulators, switching transistors, pass transistors, and current sense resistors which can be identified using the
EVM schematic located in the EVM User's Guide. When placing measurement probes near these devices during normal operation, please
be aware that these devices may be very warm to the touch. As with all electronic evaluation tools, only qualified personnel knowledgeable
in electronic measurement and diagnostics normally found in development environments should use these EVMs.

Agreement to Defend, Indemnify and Hold Harmless. You agree to defend, indemnify and hold TI, its licensors and their representatives
harmless from and against any and all claims, damages, losses, expenses, costs and liabilities (collectively, "Claims") arising out of or in
connection with any use of the EVM that is not in accordance with the terms of the agreement. This obligation shall apply whether Claims
arise under law of tort or contract or any other legal theory, and even if the EVM fails to perform as described or expected.

Safety-Critical or Life-Critical Applications. If you intend to evaluate the components for possible 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, such as devices
which are classified as FDA Class III or similar classification, then you must specifically notify TI of such intent and enter into a separate
Assurance and Indemnity Agreement.

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...

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