AME1117BCBT datasheet(10/15 Pages) AME

Part #	AME1117BCBT

Description	1A Low Dropout Positive Voltage Regulator

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Manufacturer	AME [Analog Microelectronics]

Direct Link	http://www.ame.com.tw/

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Analog Microelectronics, Inc.

10

AME1117

1A Low Dropout Positive

Voltage Regulator

5. Thermal Consideration

The AME1117 series contain thermal limiting cir-

cuitry designed to protect itself from over-tem-

perature conditions. Even for normal load condi-

tions, maximum junction temperature ratings must

not be exceeded. As mentioned in thermal protec-

tion section, we need to consider all sources of

thermal resistance between junction and ambient.

It includes junction-to-case, case-to-heat-sink in-

terface and heat sink thermal resistance itself.

Junction-to-case thermal resistance is specified

from the IC junction to the bottom of the case di-

rectly below the die. Proper mounting is required

to ensure the best possible thermal flow from this

area of the package to the heat sink. The case of

all devices in this product series is electrically con-

nected to the output. Therefore, if the case of the

device must be electrically isolated, a thermally con-

ductive spacer is recommended.

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