器件名称: LM79XX
功能描述: LM79XX Series 3-Terminal Negative Regulators
文件大小: 167.1KB 共10页
简 介:LM79XX Series 3-Terminal Negative Regulators
November 1994
LM79XX Series 3-Terminal Negative Regulators
General Description
The LM79XX series of 3-terminal regulators is available with fixed output voltages of b5V b8V b12V and b15V These devices need only one external component a compensation capacitor at the output The LM79XX series is packaged in the TO-220 power package and is capable of supplying 1 5A of output current These regulators employ internal current limiting safe area protection and thermal shutdown for protection against virtually all overload conditions Low ground pin current of the LM79XX series allows output voltage to be easily boosted above the preset value with a resistor divider The low quiescent current drain of these devices with a specified maximum change with line and load ensures good regulation in the voltage boosted mode For applications requiring other voltages see LM137 data sheet
Features
Y Y Y Y
Thermal short circuit and safe area protection High ripple rejection 1 5A output current 4% tolerance on preset output voltage
Connection Diagrams
TO-220 Package
Typical Applications
Fixed Regulator
TL H 7340 – 3 TL H 7340 – 14
Front View Order Number LM7905CT LM7912CT or LM7915CT See NS Package Number TO3B
Required if regulator is separated from filter capacitor by more than 3 For value given capacitor must be solid tantalum 25 mF aluminum electrolytic may be substituted Required for stability For value given capacitor must be solid tantalum ……
