Data Sheet

©2011 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev. 1.0.3
Features
• Output Current in Excess of 1A
• Output Voltages of -5, -6, -8 , -9, -10, -12, -15, -18 and -
24V
• Internal Thermal Overload Protection
• Short Circuit Protection
• Output Transistor Safe Operating Area Compensation
Description
The LM79XX 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 operating area protection,
making it essentially indestructible.
TO-220 (Single Gauge)
1. GND 2. Input 3. Output
1
Vin
Internal Block Digram
VOLTAGE
REFERENCE
+
-
PROTECTION
CIRCUITRY
R1
R2
Rsc
GND
I1 I2
Out
In
Q1
Q2
Output
Input
LM79XX
3-Terminal 1A Negative Voltage Regulator