SG78xxA/78xx

Microsemi

Analog Mixed Signal Group

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

Page 2

Copyright

© 1997

Rev. 1.5, 2010-07-13

TM

®

Positive Fixed Voltage Regulator

ABSOLUTE MAXIMUM RATINGS

Device Output Voltage

Input Voltage

Input Voltage

(Transient)(Note 3)

Input Voltage Differential

(Output Shorted to Ground)

5V

35V

50V

35V

12V

35V

50V

35V

15V

35V

50V

35V

Operating Junction Temperature .........................................................................................................................................................150°C

Storage Temperature Range ................................................................................................................................................. -65

°C to 150°C

Lead Temperature (Soldering 10 seconds) ..........................................................................................................................................300

°C

Note: Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. Currents are positive into, negative out of

specified terminal

.

Note 3: Operation at high input voltages is dependent upon load current. When load current is less than 5mA, output will rise out of regulation as input-

output differential increases beyond 30V. Note also from figure 1, that maximum load current is reduced at high voltages. The 50V input rating of the

SG78xxA series refers to ability to withstand high line or transient conditions without damage. Since the regulator’s maximum current capability is

reduced, the output may fall out of regulation at high input voltages under nominal loading.

THERMAL DATA

K

TO-3 3-Terminal Metal Can (Two pins and case)

THERMAL RESISTANCE

θ

JC

3.0

°C/W

THERMAL RESISTANCE

θ

JA

35

°C/W

T

TO-39 3-Pin Metal Can

THERMAL RESISTANCE

θ

JC

15

°C/W

THERMAL RESISTANCE

θ

JA

120

°C/W

G

TO-257 3-Pin Hermetic

THERMAL RESISTANCE

θ

JC

3.5

°C/W

THERMAL RESISTANCE

θ

JA

42

°C/W

IG

TO-257 3-Pin Hermetic (Isolated)

THERMAL RESISTANCE

θ

JC

4.0

°C/W

THERMAL RESISTANCE

θ

JA

42

°C/W

L

Leadless Chip Carrier 20-Pin Ceramic

THERMAL RESISTANCE

θ

JC

35

°C/W

THERMAL RESISTANCE

θ

JA

120

°C/W

The

θ