We have the following requirement:
VIN=12V
VOUT=7V
IOUT=15A
Upto 98% efficiency,Current Mode Control;frequency:200KHz to 600KHz
Whether any device from TI Power Management will be suitable for this application as a suitable replacement for LTC3789?
Please advise.
Best Regards;
Ipsit
You should use the power quick search at power.ti.com. There are many options for you. Note that you only need a buck controller, not a complicated and expensive 4-switch buck boost.
Consider the LM25116 or LM25117. The available evaluation boards won't acheive the desired output power though. Porbably need 2 top and two bottom MOSFETS in parallel.
LM25119 would work if you want 2 phase interleaved approach.
Alan Martin TI / SVA