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TPS63020 excessive ringing during switch cycles in boost mode

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Non-Isolated DC/DC



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Non-Isolated DC/DC

Non-Isolated DC/DC

Welcome to the Non-Isolated DC/DC Section of the TI E2E Support Community. Ask questions, share knowledge, explore ideas, and help solve problems with fellow engineers. To post a question, click on the forum tab then "New Post".

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Non-Isolated DC/DC Forum Products covered in this forum are... Low Power DC-DC Controllers & Converters 1,178 May 19, 2012
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Topic Date Replies Views
Michael Day Michael Day
Announcement

Non-Isolated DC/DC Forum Ground Rules

Latest post
by cb1-
Feb 26, 2012 8:55 AM
Posted in Non-Isolated DC/DC Forum
  • 1
  • 1388
1121121 1121121

MC33063 / MC33064 output capacitor type

Latest post
by Ron Michallick
May 19, 2012 2:34 PM
Posted in Non-Isolated DC/DC Forum
  • 3
  • 169
John Wiemeyer John Wiemeyer

TPS63020 Feedback Compensation Question

Latest post
by Michael Peffers
May 19, 2012 2:14 PM
Posted in Non-Isolated DC/DC Forum
  • 4
  • 117
Tom Lee Tom Lee

FET with ultra low Qg in TPS40400 application

Latest post
by Na Kong
May 18, 2012 8:56 PM
Posted in Non-Isolated DC/DC Forum
  • 1
  • 62
David Dipaola David Dipaola

LMZ10503 Output Voltage Setpoint and Compensation

Latest post
by David Dipaola
May 18, 2012 3:03 PM
Posted in Non-Isolated DC/DC Forum
  • 0
  • 22
uMin uMin

TPS61220 with high impedance resistive divider

Latest post
by uMin
May 18, 2012 2:45 PM
Posted in Non-Isolated DC/DC Forum
  • 0
  • 18
Rob Mitrunen Rob Mitrunen

TPS63020 excessive ringing during switch cycles in boost mode

Latest post
by Elwood Friesen
May 18, 2012 2:23 PM
Posted in Non-Isolated DC/DC Forum
  • 8
  • 203
Ravi Radhakrishnan Ravi Radhakrishnan

Need Information - LM2747MTC/NOPB

Latest post
by EricLee1880267
May 18, 2012 12:56 PM
Posted in Non-Isolated DC/DC Forum
  • 1
  • 48
al goodrich al goodrich

tps62420evm-167 problem with USB interface adapter

Latest post
by al goodrich
May 18, 2012 10:09 AM
Posted in Non-Isolated DC/DC Forum
  • 4
  • 127
Ankit Kumar Ankit Kumar

Power supply card shows strange behaviour

Latest post
by Chris Glaser
May 18, 2012 8:47 AM
Posted in Non-Isolated DC/DC Forum
  • 1
  • 57
Jerry Chen82343 Jerry Chen82343

layout guide of LM2733X

Latest post
by Jimmy On-Wing Poon
May 17, 2012 2:48 PM
Posted in Non-Isolated DC/DC Forum
  • 1
  • 76
huang aska huang aska

TPS61085 5V TO 12V

Latest post
by Chris Glaser
May 17, 2012 8:12 AM
Posted in Non-Isolated DC/DC Forum
  • 1
  • 53
bob moss bob moss

minimum pulse width on tps40075

Latest post
by Martin Cardella
May 16, 2012 10:32 PM
Posted in Non-Isolated DC/DC Forum
  • 1
  • 49
Henry Ma65458 Henry Ma65458

How to deal with relative PINs when we don't use PMbus on TPS40400...

Latest post
by Martin Cardella
May 16, 2012 10:01 PM
Posted in Non-Isolated DC/DC Forum
  • 1
  • 56
Kevin Chen Kevin Chen

TPS63020 5W Halogen lamp application

Latest post
by Daniel Acevedo
May 16, 2012 9:38 AM
Posted in Non-Isolated DC/DC Forum
  • 3
  • 101
12345»
Design Notes
  • Design Notes
  • Boost with MPPT?
  • Does TPS61240 EN pin have an internal pull-down or pull-up resistor?
  • + FAQ
  • FW: TPS61041 Question
  • IBIS Model Request
  • Output Capacitor of TPS51124/TPS51125/TPS51218
  • REG710 - Reducing inrush current
  • REG710 - The REG710 datasheet shows a different pinout between the QFN and SOT-23 package. Is this correct?
  • RoHs/HF - Pb Free - Lead Free compliance info
  • test
  • TL2575HV-05 recomendation
  • TLC5927 driver max voltage.
  • TLV61224 EVM available?
  • TLV62065 with output supercap
  • TLV62065: use 2.2uH instead of 1.0uH/1.2uH
  • TLV62130- transient response and VOS pin connection
  • TPS40021 Predictive gate delay
  • TPS54160 EN input protection
  • TPS54226/326 latching after short circuit
  • TPS54231 Vggm
  • TPS54260 maximum temperature
  • TPS54292 datasheet vs SwitcherPRO
  • TPS54320 SS/TR and Power Good Relationship
  • TPS54383 / TPS54386 Efficiency
  • TPS54616PWP ESD Question from General Dynamics
  • TPS54620 Enable pin absolute maximum value
  • TPS54620 VIN input current
  • TPS60150 Load Regulation
  • TPS60151 ENA pin pull down
  • TPS60204 application when inserting the batteries with reverse polarity
  • TPS60230 Iset=GND (IDx=50mA)
  • TPS60241 - Vout Abs Max
  • TPS60400 - Cfly and Co > 1uF
  • TPS61020 - Is there an ESD diode between EN and VCC?
  • TPS61025 powerpad not connected.
  • TPS61025_Efficiency when Power Save Mode is disabled
  • TPS61026 boot up problem
  • TPS61026 Overload Data
  • TPS61028 - LBO max current
  • TPS61028 : Efficiency vs Current
  • TPS61029 and TPS61020 - differences between TPS61029 and TPS61020
  • TPS6102x - can I use ceramic output caps
  • TPS61030 - No Power Save Mode with external sync clock correct?
  • TPS61030 - work in LDO mode?
  • TPS61030 soft start switch current limit
  • TPS61030_How to use ceramic output capacitor.
  • TPS61032 FB pin connection
  • TPS61032 output voltage accuracy
  • TPS61041 switching frequency
  • TPS61043 PowerPad connection
  • TPS61045 Output Voltage Variation
  • TPS6104x - Inductor Selection
  • TPS61060: Can ILED (pin3) be floating?
  • TPS61070 - Can the TPS61070 maintain output voltage regulation when the input voltage is higher than the output voltage?
  • TPS61070 overvoltage protection?
  • TPS61070 problem in shutdown mode
  • TPS61070 Reverse Polarity Protection
  • TPS61070 UVLO
  • TPS61090 - start-up into 1A load
  • TPS61090 able to use for the solar cell input application?
  • TPS61090 Output Shot-Circuit Protection and Output Over Current Protection
  • TPS61090 start up issues
  • TPS61093 BODE Calculation tool
  • TPS61093 Short Circuit Protection?
  • TPS61093 Thermal Pad package information
  • TPS61097 operation with Vin > Vout
  • TPS61130 - LBI hysteresis
  • TPS61170 UVLO for VIN Rising
  • TPS61175 external sync pull-down resistor
  • TPS61175 shutdown delay
  • tps61200 - increased output power
  • TPS61200 VAUX Current Capability
  • TPS61200 Vout prebias above programmed value
  • TPS61201EVM-179 resistor size
  • TPS61202 package options--DRC vs DSC
  • TPS61220 Minimum Output Voltage
  • TPS61220 Preformance with Vin near Vout
  • TPS61220 switching frequency
  • TPS61240 Overload Current / Maximum Output Current
  • TPS61241 :  Pre-bias is applicable?
  • TPS61251 Current Limit
  • TPS61251 Current Limit in LDO mode
  • TPS61251 Minimum Output Capacitance for Stability
  • TPS61253 - operation for Vin > Vout
  • TPS61256 - EVM start up into resistive load?
  • TPS61325 - INDLED (O) pin termination when not used
  • TPS62050 - Cff Capacitor, how to optimize for transient response.
  • TPS62050 compensation details
  • TPS62050 Max Output Voltage
  • TPS62051 Differences with TPS62050
  • TPS6205x Iq
  • TPS6205x PG
  • TPS62060 inductor selection
  • TPS62060/5/7 - minimum recommended feedback resistor value selection
  • TPS62065 AVIN and PVIN working voltages
  • TPS62065 current limit
  • TPS62065/7 minimum operating voltage
  • TPS62067 transient response
  • TPS6206x - can it start into a pre-biased output?
  • TPS6206x - does it have a minimum on time?
  • TPS62102 output ripple voltage
  • TPS62110 - Can device power up into a pre-bias condition?
  • TPS62110 - Can the TPS62110 be synchronized to less than 800kHz?
  • TPS62110 - Ground Connections
  • TPS62110 - LED application with multiple parallel strings requires tighter current matching.
  • TPS62110 Temperature of device restart
  • TPS62110 external switching frequency limit
  • TPS62110 low side FET current limit?
  • TPS62110 start-up figure 14 of D/S
  • TPS62110 sync threshold voltage
  • TPS62110 unused open drain-output
  • TPS62110 Voltage setpoint after transient
  • TPS62110: feedback resistors and Cff
  • TPS62112 efficiency Vs inductor DC resistance
  • TPS62112 Vref min max specification?
  • TPS6211x configuration for 1.2V output
  • TPS62120 - output voltages below 1.2V
  • TPS62120 - start into pre-bias?
  • TPS62120 Efficiency too low
  • TPS62120 output voltage with no input
  • TPS62120 overload figure
  • TPS62122 - 0V8 Reference min/typ/max
  • TPS62122 Output Voltage Range
  • TPS62130 /40/50 EVM loop gain - Bode plot measurement
  • TPS6213x/6214x/6215x/6216x/6217x Internal connection of exposed pad
  • TPS62140 Regulation Near 100% Duty Cycle
  • TPS62150 UVLO and Hysteresis Specs
  • TPS62170 -- LC filter (SLVA463)
  • TPS62200 – feedback voltage accuracy spec
  • TPS62200 Efficiency Lower Than Expected
  • TPS62200 vs. TPS62220
  • TPS62220 inductor value
  • TPS62230 - MODE pin pulldown?
  • TPS62230 mode pin
  • TPS622311EVM efficiency not matching datasheet
  • TPS62233 - what if Vin < Vout?
  • TPS62239 output voltage accuracy
  • TPS6223X External Resistor Divider
  • TPS6223x MODE pin: can dynamically change MODE during operation?
  • TPS6223x VIN Open condition
  • TPS62240/260/290/560/590 Enable pin control
  • TPS62240/60/90 - can it start into a pre-biased output?
  • TPS62260 sink current?
  • TPS62260 SW switching waveform
  • TPS62260 Vin Iout efficency below 2.3V
  • TPS62260, TPS62240, TPS62290, TPS62065: control method
  • TPS62260, TPS62240, TPS62290, TPS62065: how to select inductor
  • TPS62261-Q1: Momentary minus voltage on SW node
  • TPS62262 verus TPS62260 Vout tolerance
  • TPS62290 - EN > Vin?
  • TPS62290 feedback divider R1 and R2
  • TPS62300 - Can't set output voltage correctly
  • TPS62300 a TPS62290 using DAC to vontrol Vout
  • TPS62300 leakage from switch pin charging output when unloaded and device is disabled
  • TPS62321 sync = PWM or PFM mode?
  • TPS62360 Non-I2C operation?
  • TPS62400 Input Bias Current for ADJ2
  • TPS62400 MODE pin: can dynamically change MODE during operation?
  • TPS62400: Feed-Forward
  • TPS62410 , DC output voltage load regulation
  • TPS62410, maximum output capacitance.
  • TPS62410, OCP, thermal limit during Softstart.
  • TPS62420 efficiency at 1.2V/1A output
  • TPS62420 EVM Software Installation Issues
  • TPS62420 USB-TO-GPIO Code 10
  • TPS62421 EN before Vin
  • TPS62560 undershoot & overshoot when switching feedback network
  • TPS6261x EN and MODE states
  • TPS62690 EVM
  • TPS63000 Buck/Boost Transition
  • TPS63000 COUT ESR value
  • TPS63000 EN, SYNC > Vin?
  • TPS63000 ESD rating
  • TPS63000 VINA Connection
  • TPS63001 accuracy
  • TPS63010 Efficiency Graph
  • TPS63010 vs. TPS63020 power dissipation
  • TPS63011 Max input current
  • TPS63020 Additional Input/Output Capacitors
  • TPS63020 and BQ24020 Ground and Power Ground (GND & PGND)
  • TPS63020 Buck-Boost Operation
  • TPS63020 Line and Load Regulation Spec
  • TPS63020 Pgood sink current capability question?
  • TPS63020 Power Save Mode Connection (PS/SYNC)
  • TPS63020 split supply operation
  • TPS63020 VINA Pin Connection
  • TPS63020 Vout deviation in power save mode
  • TPS63020: VINA not connected to VIN, any issues?
  • TPS63030 - Pre-bias greater than set output voltage
  • TPS63030 about OVP
  • TPS63030 FB pin resistor values
  • TPS63030 output ripple for PWM MODE
  • TPS63030 power consumption when enable=low
  • TPS63030 Startup Enable Time Delay
  • TPS63060: Pre-biased output startup?
  • TPS63700 - UVLO behaviour
  • TPS63700 EN
  • TPS63700 Vref source current
  • TPS63700: negative output voltage out of regulation
  • TPS63xxx - minimum duty cycle in buck mode
  • TPS64203, input voltage range.
  • TPS65051 – Can LDO3/4 be enabled and operated if Vcc is removed from the chip?
  • TPS65130 or TPS65131: negative output voltage (VNEG) out of regulation
  • TPS82671: Enable Control
  • TPS8267x EN pin pull down
  • V(CTRL) > VIN for TPS61170 and TPS6116x?
  • What is a buck-boost converter?
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