GM6603
3.0A LOW DROPOUT
PRECISION REGULATOR
Description
GM6603 series of positive adjustable and fixed
regulators is designed to provide 3A output current
with low dropout voltage performance.
On-chip trimming adjusts the reference voltage with
an accuracy of
±2%.
Besides the features
mentioned, GM6603 works well in post regulators
or micro-processor power supplies where low
voltage operation and fast transient response are
required. GM6603 includes over current protection
and thermal shutdown protection as well.
GM6605 is available in TO-220 and surface-mount TO-
252 and TO-263 packages.
Features
Adjustable or Fixed Output
Output Current of 3.0A
Low Dropout, 1.15V max at 3A
Output Current
0.04% Line Regulation
0.2 % Load Regulation
Current Limit Protection
100% Thermal Limit Burn-In
Fast Transient Response
Applications
Microprocessor Supply
Post Regulators for Switching Supplies
Telecommunication Systems
Printer Supplies
Motherboards
Typical Application Circuit
V
IN
> 4.75V
3
V
IN
GM6603-3.3
1
GND
2
V
OUT
V
OUT
= 3.3V
3.0A
C
OUT
10µF
V
IN
> 4.75V
3
V
IN
GM6603-adj
1
ADJ
2
V
OUT
V
OUT
=3.45V
3.0A
R1
133
1%
C
IN
10µF
C
IN
10µF
C
OUT
10µF
Fixed Output Voltage Version
Notes:
1. C
IN
needed if device is far from filter capacitors
2. C
OUT
minimum value required for stability
Adjustable Output Voltage Version
1
GM6603
V1.00
R2
232
1%
GM6603
3.0A LOW DROPOUT
PRECISION REGULATOR
Marking Information and Pin Configurations (Top View)
TO 252
(D-PAK)
TO 220
TO 263
(D
2
-PAK)
GM6603
VVAYWW
GM6603
VVAYWW
1.GND/ADJ
2. V
OUT
3. V
IN
GM6603
VVAYWW
2. V
OUT
1. GND/ADJ
3. V
IN
2 V
OUT
VV: Output Voltage Codes (05: 5.0V, …A: ADJ)
A: Assembly/Test Site Code
Y: Year
WW: Week
1. GND/ADJ
3. V
IN
GM6603
V1.00
2
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