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LM7905

Part Number	LM7905
Manufacturer	Texas Instruments
Description	3-Terminal Negative Regulator
Published	Sep 11, 2020
Detailed Description	LM7905, LM7912, LM7915 www.ti.com SNOSBQ7C – JUNE 1999 – REVISED MAY 2013 LM79XX Series 3-Terminal Negative Regulator...
Datasheet	LM7905 PDF File

Overview

LM7905, LM7912, LM7915 www.
ti.
com SNOSBQ7C – JUNE 1999 – REVISED MAY 2013 LM79XX Series 3-Terminal Negative Regulators Check for Samples: LM7905, LM7912, LM7915 FEATURES 1 •2 Thermal, Short Circuit and Safe Area Protection • High Ripple Rejection • 1.
5A Output Current • 4% Tolerance on Preset Output Voltage space Connection Diagram DESCRIPTION The LM79XX series of 3-terminal regulators is available with fixed output voltages of −5V, −12V, and −15V.
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 datasheet.
Figure 1.
TO-220 Package Front View See Package Number NDE0003B Typical Applications *Required if regulator is separated from filter capacitor by more than 3″.
For value given, capacitor must be solid tantalum.
25μF aluminum electrolytic may be substituted.
†Required for stability.
For value given, capacitor must be solid tantalum.
25μF aluminum electrolytic may be substituted.
Values given may be increased without limit.
For output capacitance in excess of 100μF, a high current diode from input to output (1N4001, etc.
) will protect the regulator from momentary input shorts.
Figure 2.
Fixed Regulator 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All t...

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