CYStech Electronics Corp.
Three Terminal Medium Current Positive
Spec. No. : C520M3
Issued Date : 2014.05.08
Revised Date : 2017.03.03
Page No. : 1/10
The LM78MXXM3 series of three-terminal positive regulators are available in the SOT-89 package and with 5V, 6V,
8V, 9V, 12V, 15V, 18V and 24V fixed output voltages, making them useful in a wide range of applications.
These regulators can provide local on-card regulation, eliminating the distribution problems associated
with single point regulation. Each type employs internal current-limiting ,thermal shut-down and safe
operating area protection, making them essentially indestructible. If adequate heat sinking is provided, they
can deliver over 500mA output current. Although designed primarily as fixed voltage regulators, these devices
can be used with external components to obtain adjustable voltages and currents.
Absolute Maximum Ratings (Ta=25°C)
Operating Temperature Range
-40 ~ +125
Storage Temperature Range
-65 ~ +150
Total Power Dissipation
Note : When mounted on minimum pad size and tested in free air condition, without heat sinking.
C1 and C2 are required if regulator is
located far from power supply filter
and load, or oscillation may induced
on the loop.
CYStek Product Specification