English
Language : 

GM6603 Datasheet, PDF (1/10 Pages) List of Unclassifed Manufacturers – 3.0A PRECISION LINEAR REGULATORS
GM6603
3.0A PRECISION LINEAR REGULATORS
Power Management
Description
The GM6603 series of positive adjustable and fixed regula-
tors are designed to provide 3.0A output with low dropout
voltage performance.
On-chip trimming adjusts the reference voltage to 2.0%.
Put them to work in post regulators or microprocessor
power supplies where low voltage operation and fast tran-
sient response are required.
Device includes over-current protection and thermal shut-
down protection as well.
Pin-to-pin compatible with the LT1085 family of regulators,
the GM6603's are available in TO-252, TO-220 and sur-
face-mount TO-263 packages.
Features
Adjustable or Fixed Output
Output Current of 3.0A
Dropout Voltage (typical) 1.3V @ 3.0A
Typical Line Regulation 0.015%
Typical Load Regulation 0.05%
Fast Transient Response
Current Limit Protection
Thermal Shutdown Protection
Application
Microprocessor Supply
Post Regulators for Switching Supplies
Telecommunication Systems
Printer Supplies
Motherboards
TYPICAL APPLICATION CIRCUITS
(Adjustable Version)
GM6603-Adj
VIN> 4.75V 3
VIN
VOUT 2
ADJ
+
1
C1
10µF
Tant
(Fixed Version)
VOUT= 3.45V
VIN> 4.75V
GM6603-3.3
3 VIN
VOUT 2
VOUT= 3.3V
R1
133W
1.0%
R2
232W
1.0%
+
C2
10µF
Tant. Min
+
C1
10µF
Tant
GND
1
+
C2
10µF
Tant. Min
R2
VOUT= VREF X (1 + R1 ) + IADJ X R2
Notes:
1. C1 needed if device is far from filter capacitors
2. C2 minimum value required for stability
www.gammamicro.com 1
PRELIMINARY