Part Number: LM2678 Tool/software: Hello,
I am designing a two-layer 1.6 mm thick PCB which requires a 5 VDC supply to the processor on it. However, the board has been designed to accept 12 VDC inputs and consequently, LM2678S-5.0 (TO-263 package) is…
Part Number: LM2678 Tool/software: I have implemented a LM2678SD-5.0/NOPB in my design, and have run into some trouble. VIN = 24VDC, VOUT = 5VDC. I need 2 to 3A of output current but when attached to a load it will only output 800mA before the output…
Part Number: LM2678 Tool/software:
Dear TI Support Team, We recently ordered the LM2678SX-5.0/NOPBCT-ND component from Digi-Key (Order Number: 89501670). However, we are encountering an issue with the output voltage in this latest batch. In our circuit…
Part Number: LM2678 Other Parts Discussed in Thread: LM2679 , LM22679 , LM22678 , LM2677 , LM22677 ,
Dear support,
On my adjustable output voltage application I currently use the LM2678SX-ADJ reference but I would need some alternative references…
Part Number: LM2678 Hi,
The peak current pulse of Iout is over rated current 5A in my schematic.
The peak current pulse is 7A at 264us.
The continuous current is 1.7Arms.
In this case, The current limit don’t work.
I want to know that what value…
Part Number: LM2678 Other Parts Discussed in Thread: LM3880 , Hi,
I use the LM3880 of power sequencer and LM2678 of DCDC.
Please see attached my schematic.
I have a problem.
The ON/OFF voltage of LM2678 becomes approximately 4V.
My expectation…
Part Number: LM2678 Hi there!
I'm designing a buck converter that converts the voltage around 20v-40v to 5.5v at 3.5A. I followed the WEBench guides, but I don't know exactly what's wrong with my design, below are pictures of the circuit. I believe…
Part Number: LM2678 Hi Team,
Good day. I am posting this inquiry on behalf of the customer.
"I plan to use LM2678S-12 as 26-27V regulator driving feedback (FB pin) through resistor instead of direct voltage output, see below.
Used formula from…
Part Number: LM2678 I want to design a power supply that can switch between 5V and 12V outputs, 4.5 amps max, 34-38V input. Looking at LM2678. Using the design information Cin, Cout, and L1 are quite different between a 5V design and a 12V design. Which…
