GM7800_09 Datasheet, PDF (1/11 Pages) Gamma Microelectronics Inc. – 1.5A POSITIVE VOLTAGE REGULATOR

GM7800 Series
1.5A POSITIVE VOLTAGE REGULATOR
Description
The GM7800 series are classic regulators, which
are useful in a wide range of applications. For
example, they can be used for local on-card
regulation to eliminate the distribution and
problems associated with single point regulation.
The wide range of output voltages (5V to 27V)
make this series versatile in most applications.
Although the 7800 series is designed as fixed
output voltage regulators, they can be used as
adjustable output voltage options by a few
external components.
These virtually indestructible positive voltage
regulators are protected by thermal shut down
and internal current limiting. Most applications
require no external components.
Current limiting prevents the peak output current
to a safe value. Safe area protection of the output
transistor limits in thermal power dissipation. In
case of internal power dissipation becomes too
high for the heat sinking provided the thermal shut
down circuit will activate to prevent the regulators
from overheating.
The GM7800 series are available in TO-220, TO-
252, TO-263 packages.
Features
„ Output current up to 1.5A
„ Output Voltages 5V, 6V, 8V, 9V, 10V, 12V,
15V, 18V, 20V, 24V and 27V
„ 3- Terminal Regulators
„ Internal Thermal Overload Protection
„ Internal Short-Circuit Current Limiting
„ Output Transistor Safe-Area Protection
„ TO-220, TO-252 and TO-263 Packages
„ High Power Dissipation Capability
„ _{Direct replacements for LM78xx series}
Typical Application Circuit
V_IN
C_IN
0.33µF
GM7800
C_OUT
0.1µF
V_OUT
1.5A
For a positive regulator, a 0.33µF bypass capacitor should be used on the input terminals. While not
necessary for stability, an output capacitor of 0.1µF may be used to improve the transient response of the
regulator. These capacitors should be on or as near as possible _{to the regulator terminals .}
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