I WANT ALTERNATE IC WITH SAME OPERATION AS WELL AS SAME NO. OF PINS. IF IT IS NOT POSSIBLE THEN OPERATION SHOULD BE THE SAME (PACKAGE CAN BE COMPROMISED).

I AM USING LM2663 AN INVERTING MODE. 

(IT TAKES INPUT +3V3 AND GIVES OUTPUT -3V3)

I AM LOOKING FOR EASILY AVAILABLE COMPONENT. I CAN ORDER IT ONLINE BUT I DONT HAVE THAT MUCH OF TIME. LM 2663 IS NOT AVAILABLE IN THE LOCAL MARKET. PLEASE REPLY AS EARLY AS POSSIBLE.