________________________________________________________________________

http://www.union-ic.com Rev.05 Jan.2015

5/13

UM1770

Absolute Maximum Ratings (Note 1)

Symbol

Parameter

Value

Unit

Supply Voltage on IN Pin

-0.3 to +7.5

V

V

SHDN

___________

Voltage on SHDN

___________

Pin

-0.3 to +7.5

V

Voltage on OUT Pin

-0.3 to +7.5

V

Voltage on FB Pin

-0.3 to +7.5

V

Operating Junction Temperature (Notes 2, 3)

-40 to +125

°C

Storage Temperature Range

-65 to +150

°C

Lead Temperature for Soldering 10 seconds

+300

°C

(Notes 4)

Power Dissipation@25°C

DFN6 2.0×2.0

0.9

W

SOT89-5

1.5

θ

JA

Package Thermal Resistance

DFN6 2.0×2.0

110

°C/W

SOT89-5

66

Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be

impaired.

Specifications over the –40℃ to 125℃ operating junction temperature range are assured

by design, characterization and correlation with statistical process controls.

Note 3: This IC includes over-temperature protection that is intended to protect the device during

momentary overload conditions. Junction temperature will exceed 125℃ when

over-temperature protection is active. Continuous operation above the specified

maximum operating junction temperature may impair device reliability.

excessive die temperature and the regulator will go into thermal shutdown.