As implied, I'm looking for a MAX1555 replacement -- to charge a LiPo =20 battery while in-circuit (powering the target app). The substitutes =20 I've found so far are not clear on whether they can only be used as a =20 standalone charger or whether they can also power the target circuit =20 at the same time. I need this for a single 3.7V LiPo cell and target current consumption =20 will be ~100mA (150mA conservative max). FWIW, the MAX1555 is not easily available (surprise, surprise), and =20 I'm building a quick app for a friend, so I need a substitute. Anyone =20 have a preferred chip for this? Thanks, -Neil. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .