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LM341, LM78M05

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SNVS090F – MAY 2004 – REVISED DECEMBER 2016

Product Folder Links: LM341 LM78M05

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Copyright © 2004–2016, Texas Instruments Incorporated

8 Application and Implementation

NOTE

Information in the following applications sections is not part of the TI component

specification, and TI does not warrant its accuracy or completeness. TI’s customers are

responsible for determining suitability of components for their purposes. Customers should

validate and test their design implementation to confirm system functionality.

8.1 Application Information

The LM341 and LM78Mxx devices are fixed voltage regulators meaning no external feedback resistors are

required to set the output voltage. Input and output capacitors are also not required for the device to be stable.

However input capacitance helps filter noise from the supply and output capacitance improves the transient

response.

8.2 Typical Application

*Required if regulator input is more than 4 inches from input filter capacitor (or if no input filter capacitor is used).

**Optional for improved transient response.

Figure 11. Typical Application

8.2.1 Design Requirements

For this design example, use the parameters listed in Table 1 as the input parameters.

Table 1. Design Parameters

PARAMETER

VALUE

0.33 µF

0.1 µF

8.2.2 Detailed Design Procedure

8.2.2.1 Input Voltage

Regardless of the output voltage option being used (5 V, 12 V, 15 V), the input voltage must be at least 2 V

greater to ensure proper regulation (7 V, 14 V, 17 V).