LM78XX

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

10 of 10

www.unisonic.com.tw

QW-R101-006,J

TYPICAL CHARACTERISTICS

Fig.1 Ambient temperature vs. Power

dissipation

Fig.2 Output Voltage vs. Ambient

temperature

-50

-25

0

75

8

12

14

16

Ambient Temperature, Ta (℃)

Ambient Temperature, Ta (℃)

-50

0

50

100

4.8

4.9

5.0

5.1

5.2

θ

HS=0℃/W

4

25

50

0

105

125

150

=5℃/W

=65℃/W

No Heatsink

θ

HS=5℃/W

θ

HS=15℃/W

Fig.3 Dropout Voltage

025

50

100

1.0

1.5

2.0

2.5

0.5

DROPOUT CONDITIONS

75

125

UTC assumes no responsibility for equipment failures that result from using products at values that

exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or

other parameters) listed in products specifications of any and all UTC products described or contained

herein. UTC products are not designed for use in life support appliances, devices or systems where

malfunction of these products can be reasonably expected to result in personal injury. Reproduction in

whole or in part is prohibited without the prior written consent of the copyright owner. The information

presented in this document does not form part of any quotation or contract, is believed to be accurate

and reliable and may be changed without notice.