Other Parts Discussed in Thread: TPS65251 , TPS65261 , TPS65261-1 , TPS65400 , TPS562200 Hi TI
Do you have any spreadsheet tool for TPS 65251 converter or any reference schematic with formulas for calculation of discretes
regards
AGXIN.J
Part Number: TPS65251 The customer uses only the BUCK1 converter. BUCK 2 and BUCK 3 are unused.
I want to confirm the termination of the following pins of the unused BUCK converter. (x is 2 or 3)
LXx BSTx FBx CMPx SSx RLIMx ENx VINx
* I found the following…
Other Parts Discussed in Thread: TPS65251 We are using the TPS65251 to generate 1.1v, 1.8v and 3.3v for a Sitara processor along with external memory (MT47H64M16NF-25E:M) and a few peripheral chips. Input to the TPS65251 is +15 VDC, from an external power…
Other Parts Discussed in Thread: TPS65251-3 , TPS65251-2 , TPS65251-Q1 , TPS65251-1 , TPS65251 Hello,
Please advice how to process following terminals when I do not use back2.
LX2
VIN2
BST2
EN2
RLIM2
SS2
CMP2
FB2
Best Regards.
Other Parts Discussed in Thread: TPS65251 Hi all Would you mind if we ask TPS65251?
The datasheet shows followings; -The PGOOD pin is pulled low when any buck converter is pulled below 85% of the nominal output voltage. -The PGOOD is pulled up when all three…
Hi, Dino
1. The V3V and V7V can be used at same time, but the MAX current capability is only 10mA(see EC table in page6 of datasheet), they supply current to internal LV circuit, no recommend for external using.
2. Yes, you can use webench to simulate this…
Part Number: TPS65251 I have a set of boards with TPS65251 and I'm getting a periodic shutoff of the output with a clock frequency of ~1MHz.
It oscillates with no load. The soft start pin oscillates at 29.4Hz.
I am trying to drive 5V @ 2A on buck…
Other Parts Discussed in Thread: TPS65251 Hi
I have done the calculation for the TPS65251 With three different O/P voltages as 3.7,3.3,1.8
I need to check this values we are having few doubts in the calculation of compensation circuit ?
Are the compensation…
Hello Nate-san,
Thank you for your answer.
TPS65251 and TPS65251-Q1 is similar but datasheet has little difference.
TPS65251-Q1 Data sheet (SLVSBF2B) page 7, Figure 1 and it explaines Start-up Sequence as I attached on my post dated Mar 03 2014 07:03 AM…
Other Parts Discussed in Thread: TPS65251 , TPS65251-Q1 Hello,
My customer would like to know about R1/R2 shown on page 13 in the datasheet. It shows 40.2kOhm to improve efficiency for llight load, but it's not E24 parts. It also requires R2 > 47kohm…