0.1 µF

LM3480IM3-5.0

3

2

1

5 V, 100 mA OUT

6.5 V IN

0.1 µF

LM3480

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SNVS011H – JUNE 1999 – REVISED SEPTEMBER 2015

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 LM3480 is a linear voltage regulator with 1.2-V ensured maximum dropout and 100-mA ensured minimum

load current. This device has 3.3-V, 5-V, 12-V, and 15-V versions. The implementation of LM3480 is discussed in

this section.

8.2 Typical Application

8.2.1 Design Requirements

DESIGN PARAMETER

EXAMPLE VALUE

Input voltage

6.5 V

Output voltage

5 V

Output current

100 mA

8.2.2 Detailed Design Procedure

8.2.2.1 External Capacitors

A minimum input and output capacitance value of 0.1 µF is required for stability and adequate transient

performance. There is no specific ESR limitation, although excessively high ESR will compromise transient

performance. There is no specific limitation on a maximum capacitance value on the input or the output.

8.2.2.1.1

Output Capacitor

The minimum output capacitance required to maintain stability is 0.1 µF. Larger values of output capacitance can

be used to improve transient behavior.

8.2.3 Application Curves

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