Part Number : 78M56A, NJM78M56
Function : 5.6, Voltage regulator
Package : TO-220 Type
Maker : Japan Radio Corporation
Image : 
Description :
It is marked 78M56A and identified on the pcb as NJM78M56. it's a TO-220 (mfr is JRC).
The NJM78M00 series of 3-Terminal Positive Voltage Regulators is constructed using the New JRC Planar epitaxial process. These regulators employ internal current-limiting, thermal-shutdown and safe-area compensation making them essentially indestructible. If adequate heat sinking is provided, they can deliver in excess of 500mA output current.
Features
1. Internal Short Circuit Current Limit
2. Internal Thermal Overload Protection
3. Excellent Ripple Rejection
4. Guaranteed 500mA Output Current
Reference Page : http://www.electronicspoint.com/threads/mystery-regulator.54606/
Datasheet PDF Download : 
Others datasheet of same file :
78M56, NJM78M56
