I found the features on the KA7812

[galody]

The KA7812 is designed as one kind of 3-terminal 1A negative voltage regulator that is available in TO-220 package and with several fixed output voltages, making them useful in a wide range of applications. Features of the KA7812 are1)output current in excess of 1A; (2)output voltages of 5, 6, 8, 9, 10, 12, 15, 18, 24V; (3)internal thermal overload protection; (4)short circuit protection; (5)output transistor safe operating area protection.

The electrical characteristics of the KA7812 can be summarized as1)Output Voltage: 4.8 to 5.2 mV;(2)Output Noise Voltage: 42 μV/Vo;(3)Ripple Rejection: 62 to 73 dB;(4)Dropout Voltage: 2 V;(5)Short Circuit Current: 230 mA;(6)Peak Current: 2.2 A.