MC79XX Datasheet, PDF (1/15 Pages) Fairchild Semiconductor – 3-TERMINAL 1A NEGATIVE VOLTAGE REGULATORS

MC79XX (LM79XX) (KA79XX/A)
FIXED VOLTAGE REGULATOR (NEGATIVE)
3-TERMINAL 1A NEGATIVE VOLTAGE REGULATORS
The MC79XX series of three-terminal negative regulators are available in
TO-220 package and with several fixed output voltages, making them useful
in a wide range of applications. Each type employs internal current limiting,
thermal shut-down and safe area protection, making it essentially indestructible.
TO-220
FEATURES
• Output Current in Excess of 1A
• Output Voltages of -5, -6, -8, -12, -15, -18, -24V
• Internal Thermal Overload Protection
• Short Circuit Protection
• Output Transistor Safe-Area Compensation
1: GND 2: Input 3: Output
ORDERING INFORMATION
Device
MC79XXCT (LM79XXCT) (KA79XX)
KA79XXA
Output Voltage
Tolerance
± 4%
± 2%
Package
TO-220
Operating Temperature
0 ~+125°C
BLOCK DIAGRAM
GND
VOLTAGE
REFERENCE
+
-
I1
I2
R1
R2
Out
Q1
PROTECTION
CIRCUITRY
Q2
Rsc
In
©1999 Fairchild Semiconductor Corporation
Rev. C