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Microprocessor Supply
Post Regulators for Switching Supplies
Telecommunication Systems
Description
The GM6605 series of positive adjustable and fixed regula-
tors are designed to provide 5A output with low dropout
voltage performance. On-chip trimming adjusts the refer-
ence voltage with an accuracy of ±1% for adjustable, and
±2% for fixed voltage versions. Put them to work in post
regulators or microprocessor power supplies where low
voltage operation and fast transient response are required.
Device includes over-current protection and thermal shut-
down protection as well.
The GM6605’s are available in TO-220 and surface-
mount TO-263 packages.
Application
Features
Adjustable or Fixed Output
Output Current of 5.0A
Dropout Voltage (typical) 1.2V @ 5.0A
Typical Line Regulation 0.04%
Typical Load Regulation 0.08%
Fast Transient Response
Current Limit Protection
Thermal Shutdown Protection
TYPICAL APPLICATION CIRCUITS
Medical Equipment
Printer Supplies
Motherboards
VOUT
ADJ
VIN
3.3V@3.0A
22µF
5.0V
10µF
5.0V
GM6605-Adj
5.0V
0.1µF
5.0V
200W
1.0%
124W
1.0%
(Adjustable Version)
VOUT
GND
VIN
3.3V@3.0A
10µF
5.0V
GM6605-3.3
(Fixed Version)
GM6605
5.0A PRECISION LINEAR REGULATORS
22µF
5.0V
www.gammamicro.com
1
Power Management
PRELIMINARY
5.0V
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