MacBook Pro Air Power Management Buck Controller IC 51125 A1342 A1278 A1286

This IC is the buck controller for the 3.3V and 5V power rails.
Identified in many schematics and board view files as U7200 or U7201.
1 – Power Management Buck Controller IC (VQFN-24)

MacBook 13″ Unibody A1342

• MacBook6,1 Late 2009: MC207LL/A (2.26 GHz Core 2 Duo)
• MacBook7,1 Mid 2010: MC516LL/A (2.4 GHz Core 2 Duo)

MacBook Pro 13″ Unibody A1278

• MacBookPro5,5 Mid 2009: MB990LL/A (2.26 GHz Core 2 Duo)
• MacBookPro5,5 Mid 2009: MB991LL/A (2.53 GHz Core 2 Duo)
• MacBookPro7,1 Mid 2010: MC374LL/A (2.4 GHz Core 2 Duo)
• MacBookPro7,1 Mid 2010: MC375LL/A (2.66 GHz Core 2 Duo)
• MacBookPro8,1 Early 2011: MC700LL/A (2.3 GHz Core i5)
• MacBookPro8,1 Early 2011: MC724LL/A (2.7 GHz Core i7)
• MacBookPro8,1 Late 2011: MD313LL/A (2.4 GHz Core i5)
• MacBookPro8,1 Late 2011: MD314LL/A (2.8 GHz Core i7)
• MacBookPro9,2 Mid 2012: MD101LL/A (2.5 GHz Core i5)
• MacBookPro9,2 Mid 2012: MD102LL/A (2.9 GHz Core i7)

MacBook Pro Unibody 15″ A1286

• MacBookPro5,1 Late 2008: MB470LL/A (2.4 GHz Core 2 Duo)
• MacBookPro5,1 Late 2008: MB471LL/A (2.53 GHz Core 2 Duo)
• MacBookPro5,1 Late 2008: MB471LL/A (2.8 GHz Core 2 Duo)
• MacBookPro5,1 Early 2009: MC026LL/A (2.66 GHz Core 2 Duo)
• MacBookPro5,1 Early 2009: MC026LL/A (2.93 GHz Core 2 Duo)
• MacBookPro5,3 Mid 2009: MB985LL/A (2.66 Ghz Core 2 Duo)
• MacBookPro5,3 Mid 2009: MB986LL/A (2.8 GHz Core 2 Duo)
• MacBookPro5,3 Mid 2009: MB986LL/A (3.06 GHz Core 2 Duo)
• MacBookPro5,3 Mid 2009: MC406LL/A (2.8 GHz Core 2 Duo) (Anti-Glare Display)
• MacBookPro5,3 Mid 2009: MC406LL/A (3.06 GHz Core 2 Duo) (Anti-Glare Display)
• MacBookPro5,4 Mid 2009: MC118LL/A (2.53 GHz Core 2 Duo)
• MacBookPro6,2 Mid 2010: MC371LL/A (2.4 GHz Core i5)
• MacBookPro6,2 Mid 2010: MC372LL/A (2.53 GHz Core i5)
• MacBookPro6,2 Mid 2010: MC373LL/A (2.66 GHz Core i7)
• MacBookPro6,2 Mid 2010: MC373LL/A (2.8 GHz Core i7)