https://e2e.ti.com/support/power-management-group/power-management/<p style="display:none;">blank</p>en-USTelligent Community 13https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1679434/lmr60440-q1-emi-filter-buck-selection/6473946Fri, 04 Sep 2026 17:40:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:47708275-5fad-46d2-ab33-ccad57b1e097Joshua AustriaHi, I believe your first question is being asked in a different thread. For your second question, there should not be any risk. You will need to design your passives however to accommodate for the increased current limits. Please utilize the datasheet recommendations for the 4A device and please ensure that your inductor is rated for at least the high side switch current limit of the 4A device (8.2A). Thank you, Joshua Austriahttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1678919/tps1200-q1-negative-reverse-voltage-protection-while-vs-is-0v-or-powered/6473944Fri, 04 Sep 2026 17:38:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:cca10e4c-b05f-4dbc-9e65-7fad3a62b62dAnders KagerinThanks Sarah, But this is still ambiguous to me. Perhaps the better questions are: Will holding INP = off while VS&gt;POR keep the MOSFET off even if VBAT or VOUT are -12V? If VS=0V, will the MOSFET be off if VBAT or VOUT are -12V?https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1679355/lmr60440-q1-clarification-on-the-rationale-for-the-rfbt-rfbb-3kohm-requirement-in-lmr60440-q1-datasheet/6473943Fri, 04 Sep 2026 17:37:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:2d2879b2-0fb6-43ef-9c0a-11a2ff4300b1Joshua AustriaHi Ryu, There is an impedance detection network on the FB pin that will choose if the device is to use its internal feedback resistor divider or set the device into adjustable mode and utilize the externally provided resistor ladder to set VOUT. If your parallel combination is below 3kohm, the device may enter its fixed output voltage mode at startup. Thank you, Joshua Austriahttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1679395/lmr23630-q1-pin-fmea-document-of-lmr23630-q1/6473939Fri, 04 Sep 2026 17:35:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:ed4bc4c0-0850-44c4-9208-0681bb56982fJoshua AustriaHi, There are no plans to create this type of document for this device at this time. Thank you, Joshua Austriahttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1679537/lmr51450evm-altium-project-files-about-the-lmr51450evm/6473934Fri, 04 Sep 2026 17:30:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:599c8566-d5b3-42c5-8560-2102602547deJoshua AustriaHi Sean, Do you have an email I can reach you at? Alternatively, we can connect on E2E and I can send you those files through DM. Thank you, Joshua Austriahttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1676085/tps548a23-multiple-devices-failing-short-after-a-few-power-cycles/6473925Fri, 04 Sep 2026 17:25:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:126bba51-b12f-4d14-b2d5-2d0ed520f4a5Steve TakataCalan, I appreciate your feedback on this design. I&#39;ve made a few updates to my board and captured some additional waveforms specifically on the SW node. I changed the smallest/closest capacitors to 2.2&#181;F and added a 22&#181;F on top of the 10&#181;F cap on each side of the IC. I measure about 150&#181;F total on VSYS with a DMM due to other caps on that net. Like I mentioned before, I have changed CFG[3:5] for FCCM. I captured several runs with 7.5V input from a bench power supply with varying load on the output. 50Ω, 25Ω, 12Ω for output current of 100mA, 200mA, 400mA. The thermal image below is from a 12Ω/400mA test that ran for a minute or so. Package temperature was about 58&#176;C at this limited output load. A similar test on the TPS548B21EVM configured similarly had a package temp of only 26&#176;C. Can you please take a look at the SW node waveforms below? What do you see that could point me in the direction of a solution? What other nodes would be helpful to measure for diagnosis?https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1679347/tps548b28-vin-is-off-vout-drops-abnormally/6473924Fri, 04 Sep 2026 17:24:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:96621d88-590a-4088-aa2c-b1298fe21b69Carson HarramanAllen, So there is no blip on 10.9A, but there is on 10A? Is there anything else in system or at load that could be enabled or disabled by that difference in current? Also, how is Iout measured here? I am wondering if something else occurs in system that pulls a bit more current that causes that small droop, but the current spike is not seen due to measurement location. Carsonhttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1679097/bq25720-where-is-the-wafer-fabrication-site-for-bq25720rsnr-dc-2151/6473921Fri, 04 Sep 2026 17:21:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:3af52293-90d4-418f-9c96-ee328cac2fd8Tiger Zhoue2e.ti.com/.../bq25720-where-is-the-wafer-fabrication-site-for-bq25720rsnrhttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1679094/bq25720-where-is-the-wafer-fabrication-site-for-bq25720rsnr/6473918Fri, 04 Sep 2026 17:20:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:acd86b4c-ce6d-4033-b13b-cc10d6e0bcb4Tiger ZhouHi, Thanks for your inquiry. We have multiple sites for part fabrication. We need more information to track the fab info. Could you provide the lot number on the packing slip? or the part marking on top of the device? A datecode DC 2151 alone could not trace the fab site. Regards, Tigerhttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1679632/tida-010933-hardware-for-reference-designFri, 04 Sep 2026 17:17:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:5c0819db-a3ec-41f1-b678-2b9cd5622cccBJEPart Number: TIDA-010933 Is there a 3rd party company or TI partner who can assemble and supply the hardware for the TIDA-010933 reference design .TIDA-010933https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1678333/lmr33640-output-voltage-drop-down-under-load/6473896Fri, 04 Sep 2026 16:57:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:a1d4c839-34e0-43b9-802d-fbc0aaf84cd6Joshua AustriaHi Uwe, Can you please label what these scope shots are showing and with what conditions? Thank you, Joshua Austriahttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1678015/lmq66410-q1-webench-maximum-inductance/6473881Fri, 04 Sep 2026 16:42:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:b68fb5ed-06ba-43df-afa0-2aec4e7ae462Joshua AustriaHi, No, but it is likely limited by either the data we have or some quirk of the switching frequency being reduced at 200mA in PFM that Webench is taking into account. Going from the datasheet equations, 10uH would give you about 19.2% ripple at 12VIN which should be proper. If you want to use that inductance, you should also double your output capacitance from the recommended 22uF to 2x22uF. Please also ensure that your ratings of your inductance and capacitances are proper. You will want to rate your inductor for the high side switch current limit and your output capacitors for at least 2x the voltages they are expected to experience to avoid significant de-rating. Thank you, Joshua Austriahttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1679278/bq25730-looking-for-samples-for-prototype-testing/6473877Fri, 04 Sep 2026 16:38:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:5f771d15-a080-47a1-a3fb-98812913239fRobert MohrChristian, Thanks for the reply. We are using the part in a transmission line monitoring device. The chip is being used as the charge controller to charge the hybrid lithium ion supercapacitors the unit uses when the transmission line current drops below the threshold required for our CT harvester to provide enough output to continuously power the device. We are preparing for our third small run of beta units. Part availability hadn&#39;t been a problem with previous board turns, however this time around it seems someone bought up all the inventory everywhere. Our board supplier did manage to find enough for this current run, however I expect one more turn for our production candidate. Factory lead times are long enough I was hoping to aquire some chips to support that final turn, which will be in mid-October. We are too far along in the design process to switch to another part, Is availability of this component going to be a problem long term? We had no indication it was slated fro EOL. Robhttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1679123/tps7a4501-sp-lib-file/6473872Fri, 04 Sep 2026 16:35:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:8838e3f2-b160-4f9f-95c6-8ac4edb727c9Sarah KochHi Ken, Was just about to reply. If you&#39;re still designing, the TPS7H1301-SP may be a good fit for you. It has a 500kHz charge pump followed by an integrated LDO to take a positive input and generate a regulated negative output to support up to 400mA loads. We can get these sim files to you if needed. The TPS7A4501-SP has an unencrypted transient model on it&#39;s part webpage: https://www.ti.com/product/TPS7A4501-SP#design-tools-simulation Thanks, Sarahhttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1679123/tps7a4501-sp-lib-file/6473869Fri, 04 Sep 2026 16:33:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:9716d2bb-f15c-42c8-acbd-a5cb005c9240Kenneth AquinoHi Sarah, Would you please provide me with the transient model. I&#39;m pretty sure that will resolve this.https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1678936/lm654b0-q1-bias-pin-design-for-1v-output/6473868Fri, 04 Sep 2026 16:33:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:3634918e-8550-4fec-9ad8-1da981bb0ee4Joshua AustriaHi Weixu, At a 1VOUT, there should not be any risk. The internal LDO supply to VCC would just be powered by VIN and you would see no improvement in efficiency. Thank you, Joshua Austriahttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1679625/tpsm82912-tpsm82912-webench-model-not-availableFri, 04 Sep 2026 16:32:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:5a838dab-0cb8-420a-9e1c-9fb4e7bba993Ioan CojocariuPart Number: TPSM82912 Other Parts Discussed in Thread: TPSM82913 Since there is a PSPICE TPSM82912 Simulation available under slcmdz0, why the TPSM82912 model is not available under Webench also? It will help with selection of the external parts. Can Webench TPSM82913 model be used also for TPSM82912 design up to 2A? Are there any significant diffrences between these devices regarding the internal conpensation networks, or MOSFETs that may affect efficiency?TPSM82913Wireless InfrastructureTPSM82912https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1679362/tps25751-does-tps25751-need/6473862Fri, 04 Sep 2026 16:28:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:9bd95780-4d1a-4192-a529-244d611b270bKatilynn MarHello Sai, Thank you for reaching out on E2E. I recommend moving to the TPS25751A. See here for details; let me know if you have any follow up questions regarding the TPS25751A. The USB2.0 mux is necessary if both BC1.2 detection and USB 2.0/3.0 host data enumeration is supported. BC1.2 charging requires the GPIO signals from GPIO4/5 and external circuity such as the pulldown resisters on Dp/Dm. For USB3.0 data, the Dp/Dm lines are also used for the high speed data on a type-A connector. The mux is used to isolate the BC1.2 hardware from the USB 2.0/3.0 host data enumeration. Thank you, Katilynnhttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1668005/tpsm64404-regarding-the-output-short-circuit-issue-with-tlvm14404-and-tpsm64404/6473861Fri, 04 Sep 2026 16:26:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:a30156f6-a21f-4035-a350-c1162975c5edJoshua AustriaHi Ryusuke, Yup! No problem! Thank you, Joshua Austriahttps://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1678390/bq25792evm-interfacing-with-mspm0l2227/6473854Fri, 04 Sep 2026 16:20:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:7907deb8-472d-40d3-ae0d-d888ae3401e0Pritam MalusareYes. I&#39;ll check with fast mode and other parameters like clock stretching etc and let you know.