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TPS62065/67EVM-347 Assembly Drawings and Layout

Figure 16. TPS62065/67EVM Bottom-Side Copper (Bottom View)

17

SLVU364 – March 2010

TPS62065/67EVM

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Copyright © 2010, Texas Instruments Incorporated

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Summary of Contents for TPS62065

Page 1: ...awings and Layout 12 8 Bill of Materials 18 List of Figures 1 TPS62065EVM Schematic 3 2 TPS62067EVM Schematic 3 3 Hardware Board Connection 6 4 TPS62065 TPS62067 Efficiency vs Load Current 8 5 TPS62065 Startup into 2 2 Ω Load 8 6 TPS62067 Startup into 2 2 Ω Load 9 7 TPS62067 Shutdown No Load 9 8 TPS62065 Output Voltage Ripple PFM Mode 10 9 TPS62065 Output Voltage Ripple PWM Mode 10 10 TPS62065 Gai...

Page 2: ...edia players DSP supply 2 Electrical Performance Specifications Table 1 summarizes the TPS62065 67EVM performance specifications Table 1 TPS62065 67EVM Performance Characteristics Notes and Parameter Symbol Conditions Min Typ Max Units Input Characteristics Input Voltage VIN 3 0 6 0 V Falling 1 73 1 78 1 83 V Input Undervoltage Lockout VIN_UVLO UVLO Rising 1 9 1 95 1 98 V Output Characteristics Li...

Page 3: ...rates the TPS62067EVM schematic Figure 1 TPS62065EVM Schematic Figure 2 TPS62067EVM Schematic NOTE These diagrams are provided for reference only See Table 2 the Bill of Materials for specific component values 3 SLVU364 March 2010 TPS62065 67EVM Submit Documentation Feedback Copyright 2010 Texas Instruments Incorporated ...

Page 4: ...ctions for the output of the converter Connect a voltmeter or the sense connection of an electronic load or oscilloscope to this header 4 1 6 J15 GND J15 is the return connection of the converter A load can be connected between J15 and J13 VOUT The converter is capable of carrying a load current up to 2000 mA 4 1 7 JP10 EN This jumper enables disables the TPS62065 on the EVM Shorting jumper JP10 b...

Page 5: ...e positive output of the step down converter The output voltage of the TPS62067 is adjustable with the feedback resistors R20 and R21 On the EVM the output voltage is set to 3 3 V by default NOTE There is a feed forward capacitor required Refer to the TPS6206x data sheet SLVS833 for detailed information 4 2 5 J24 S S J24 S S are the sense connections for the converter output Connect a voltmeter or...

Page 6: ...up resistor is connected between VIN and EN Removing jumper JP20 also turns on the converter 4 2 9 J27 VOUT SMA This SMA connector is connected to the output voltage of the TPS62067 It can be used to easily analyze the noise spectrum of the output voltage with a spectrum analyzer By default J27 is not assembled on the EVM 5 Test Configuration 5 1 Hardware Setup Figure 3 illustrates a typical hardw...

Page 7: ...ble and twisted 2 Connect a dc voltmeter or oscilloscope to the output sense connection of the EVM J14 on the TPS62065EVM J24 on the TPS62067EVM 3 A load can be connected between J13 and J15 on the TPS62065EVM or J23 and J25 on the TPS62067EVM 4 To enable the converter connect the shorting bar on JP10 JP20 between EN and ON on the TPS62065EVM TPS62067EVM 5 The TPS62065EVM has a feature to allow th...

Page 8: ... performance curves for the TPS62065 67EVM Actual performance data can be affected by measurement techniques and environmental variables therefore these curves are presented for reference and may differ from actual results obtained by some users 6 1 Efficiency Figure 4 shows the typical efficiency performance for the TPS62065 and TPS62067 Figure 4 TPS62065 TPS62067 Efficiency vs Load Current 6 2 S...

Page 9: ...ti com TPS62065 67EVM Test Data 6 3 Start up and Shutdown TPS62067 Figure 6 and Figure 7 illustrate the typical start up and shutdown behavior respectively for the TPS62067 using the TPS62067EVM Conditions VIN 4 2 V VOUT 3 3 V Figure 6 TPS62067 Startup into 2 2 Ω Load Conditions VIN 4 2 V VOUT 3 3 V Figure 7 TPS62067 Shutdown No Load 9 SLVU364 March 2010 TPS62065 67EVM Submit Documentation Feedbac...

Page 10: ... 8 V IN OUT L 1 2 H C 10 F m m OUT I 500 mA MODE GND OUT TPS62065 67EVM Test Data www ti com 6 4 Output Voltage Ripple Power Save Mode Figure 8 and Figure 9 show the typical output voltage ripple for the TPS62065 in PFM and PWM modes respectively with the TPS62065EVM Figure 8 TPS62065 Output Voltage Ripple PFM Mode Figure 9 TPS62065 Output Voltage Ripple PWM Mode 10 TPS62065 67EVM SLVU364 March 20...

Page 11: ... respectively using the TPS62025EVM Conditions VIN 3 6 V VOUT 1 8 V IOUT 1 6 A bandwidth 224 kHz phase margin 59 Figure 10 TPS62065 Gain and Phase vs Frequency Conditions VIN 5 0 V VOUT 1 8 V IOUT 1 6 A bandwidth 271 kHz phase margin 54 Figure 11 TPS62065 Gain and Phase vs Frequency 11 SLVU364 March 2010 TPS62065 67EVM Submit Documentation Feedback Copyright 2010 Texas Instruments Incorporated ...

Page 12: ... top and bottom layers to allow the user to easily view probe and evaluate the TPS62025 67 control ICs in a practical double sided application environment Moving components to both sides of the PCB or using additional internal layers can offer additional size reduction for space constrained systems NOTE Board layouts are not to scale These figures are intended to show how the board is laid out the...

Page 13: ... 72 mm 1 80 inch www ti com TPS62065 67EVM 347 Assembly Drawings and Layout Figure 12 TPS62065 67EVM Component Placement Top View 13 SLVU364 March 2010 TPS62065 67EVM Submit Documentation Feedback Copyright 2010 Texas Instruments Incorporated ...

Page 14: ...7EVM 347 Assembly Drawings and Layout www ti com Figure 13 TPS62065 67EVM Top Side Copper Top View 14 TPS62065 67EVM SLVU364 March 2010 Submit Documentation Feedback Copyright 2010 Texas Instruments Incorporated ...

Page 15: ...065 67EVM 347 Assembly Drawings and Layout Figure 14 TPS62065 67EVM Internal Layer 2 X Ray View from Top 15 SLVU364 March 2010 TPS62065 67EVM Submit Documentation Feedback Copyright 2010 Texas Instruments Incorporated ...

Page 16: ...47 Assembly Drawings and Layout www ti com Figure 15 TPS62065 67EVM Internal Layer 1 X Ray View from Top 16 TPS62065 67EVM SLVU364 March 2010 Submit Documentation Feedback Copyright 2010 Texas Instruments Incorporated ...

Page 17: ...S62065 67EVM 347 Assembly Drawings and Layout Figure 16 TPS62065 67EVM Bottom Side Copper Bottom View 17 SLVU364 March 2010 TPS62065 67EVM Submit Documentation Feedback Copyright 2010 Texas Instruments Incorporated ...

Page 18: ... chip 1 16W 1 0603 Standard Std 2 R11 R21 180 kΩ Resistor chip 1 16W 1 0603 Standard Std 1 R20 820 kΩ Resistor chip 1 16W 1 0603 Standard Std R12 R13 4 1 00 MΩ Resistor chip 1 16W 1 0603 Standard Std R22 R23 1 U10 TPS62065DSG IC step down converter 3 MHz 1 6 A SON 8 TPS62065DSG TI 1 U20 TPS62067DSG IC step down converter 3 MHz 1 6 A SON 8 TPS62067DSG TI 1 These assemblies are ESD sensitive ESD pre...

Page 19: ...uct 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 or visit www ti com esh No license is granted under any patent right or other intellectual property right of TI covering or relating to any machine process or combination in which such TI products or...

Page 20: ...ch 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 o...

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