Because of the Thanksgiving holiday in the U.S., TI E2E™ design support forum responses may be delayed from November 25 through December 2. Thank you for your patience.
Dear Xiuhe -
Please review:
TMP708, TMP709, these devices have the SAME FUNCTIONALITY and PINOUT as the competitors device, but are NOT an exact equivalents
http://www.ti.com/product/TMP708 , http://www.ti.com/product/TMP709
and
LM26 and LM27 these devices…