78L05 datasheet(5/46 Pages) STMICROELECTRONICS

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L78L

Maximum ratings

Table 1. Absolute maximum ratings

Symbol

Parameter

Value

Unit

DC Input voltage

VO = 3.3 to 9 V

VO = 12 to 15 V

VO = 18 to 24 V

Output current

100

Power dissipation

Internally limited (1)

Our SO-8 package used for voltage regulators is modified internally to have pins 2, 3, 6 and 7 electrically communed to the

die attach flag. This particular frame decreases the total thermal resistance of the package and increases its ability to

dissipate power when an appropriate area of copper on the printed circuit board is available for heat-sinking. The external

dimensions are the same as for the standard SO-8.

TSTG

Storage temperature range

-65 to 150

°C

TOP

Operating junction temperature range

for L78LxxAC /

L78LxxC

0 to 125

°C

for L78LxxAB

-40 to 125

Table 2. Thermal data

Symbol

Parameter

SO-8

TO-92

SOT-89

Unit

RthJC

Thermal resistance junction-case (max)

°C/W

RthJA

Thermal resistance junction-ambient (max)

55 (1)

200

55 (1)

°C/W

Considering 6 cm² of copper Board heat-sink.

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