LM2941, LM2941C

SNVS770I – JUNE 1999 – REVISED JANUARY 2015

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11 Device and Documentation Support

11.1 Device Support

11.1.1 Definition of Terms

Dropout Voltage The input-voltage differential at which the circuit ceases to regulate against further reduction in

input voltage. Measured when the output voltage has dropped 100 mV from the nominal value

temperature.

Input-Output Differential The voltage difference between the unregulated input voltage and the regulated

output voltage for which the regulator will operate.

Input Voltage The DC voltage applied to the input terminals with respect to ground.

Line Regulation The change in output voltage for a change in the input voltage. The measurement is made

under conditions of low dissipation or by using pulse techniques such that the average chip

temperature is not significantly affected.

Load Regulation The change in output voltage for a change in load current at constant chip temperature.

Long Term Stability Output voltage stability under accelerated life-test conditions after 1000 hours with

maximum rated voltage and junction temperature.

Output Noise Voltage The rms AC voltage at the output, with constant load and no input ripple, measured over

a specified frequency range.

Quiescent Current That part of the positive input current that does not contribute to the positive load current.

The regulator ground lead current.

Ripple Rejection The ratio of the peak-to-peak input ripple voltage to the peak-to-peak output ripple voltage.

temperature to either temperature extreme.

11.2 Documentation Support

11.2.1 Related Documentation

•

AN-1520: A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (SNVA183)

•

AN-1187: Leadless Leadframe Package (LLP) (SNOA401)

•

AN-2020: Thermal Design By Insight, Not Hindsight (SNVA419)

11.3 Related Links

Table 1 below lists quick access links. Categories include technical documents, support and community

resources, tools and software, and quick access to sample or buy.

Table 1. Related Links

TECHNICAL

TOOLS &

SUPPORT &

PARTS

PRODUCT FOLDER

SAMPLE & BUY

DOCUMENTS

SOFTWARE

COMMUNITY

LM2941

Click here

Click here

Click here

Click here

Click here

LM2941C

Click here

Click here

Click here

Click here

Click here

11.4 Trademarks

All trademarks are the property of their respective owners.

11.5 Electrostatic Discharge Caution

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

18

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