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GM6603-1.8TA3T [GAMMA]

3.0A LOW DROPOUT PRECISION LINEAR REGULATORS; 3.0A低压差精密线性稳压器
GM6603-1.8TA3T
型号： GM6603-1.8TA3T
厂家： GAMMA MICROELECTRONICS INC.    GAMMA MICROELECTRONICS INC.
描述：

3.0A LOW DROPOUT PRECISION LINEAR REGULATORS
3.0A低压差精密线性稳压器

稳压器
文件： 总11页 (文件大小：289K)
中文：  中文翻译
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Features  
Description  
GM6603 of positive adjustable and fixed regulators are de-  
signed to provide 3.0A output with low dropout voltage per-  
formance.  
Adjustable or Fixed Output  
Output Current of 3.0A  
Dropout Voltage (typical) 1.15V @ 3.0A  
Typical Line Regulation 0.04%  
Typical Load Regulation 0.2%  
Fast Transient Response  
On-chip trimming adjusts the reference voltage to 2.0%. To  
work in post regulators or microprocessor power supplies  
where low voltage operation and fast transient response  
are required.  
Current Limit Protection  
Device includes over-current protection and thermal shut-  
down protection as well.  
Thermal Shutdown Protection  
Pin-to-pin compatible with LT1085 family of regulators,  
GM6603 is available in TO-252, TO-220, and surface-  
mount TO-263 packages.  
Application  
Printer Supplies  
Motherboards  
Microprocessor Supply  
Post Regulators for Switching Supplies  
Telecommunication Systems  
TYPICAL APPLICATION CIRCUITS  
(Adjustable Version)  
(Fixed Version)  
GM6603-Adj  
V
IN  
> 4.75V  
GM6603-3.3  
V
OUT  
= 3.45V  
V
IN  
> 4.75V  
3
V
= 3.3V  
OUT  
2
3
V
V
2
OUT  
IN  
V
V
OUT  
IN  
R1  
ADJ  
1
133W  
1.0%  
GND  
1
+
+
+
+
C1  
C2  
C1  
C2  
10µF  
Tant. Min  
10µF  
Tant  
10µF  
10µF  
Tant  
R2  
Tant. Min  
232W  
1.0%  
R2  
R1  
V
OUT  
= V  
REF  
X (1 +  
) + I  
X R2  
ADJ  
Notes:  
1. C1 neededif device isfar from filter capacitors  
2. C2 minimumvalue required forstability  
www.gammamicro.com  
1
MARKING INFORMATION & PIN CONFIGURATIONS(Top View)  
2
TO-263-2 (D PAK)  
TO-220  
TO-252(DPAK)  
GM6603  
VVAYWW  
GM6603  
VVAYWW  
GM6603  
VVAYWW  
V
IN  
V
IN  
V
OUT  
V
OUT  
ADJ/GND*  
ADJ/GND*  
V
IN  
OUT  
ADJ/GND*  
V
Adj  
V V, V = Output Voltage(A =  
= Assembly Location  
= Year  
W W = Weekly  
,33 = 3.3V)  
On fixed versions Pin 1 = GND,  
A
on adjustable versions Pin 1 = ADJ  
Y
Tab = V  
OUT  
ORDERING INFORMATION  
Ordering Number  
Output Voltage  
Package  
Shipping  
Adj  
Adj  
Adj  
Adj  
Adj  
1.5  
1.5  
1.5  
1.8  
1.8  
1.8  
1.8  
1.8  
2.5  
2.5  
2.5  
2.85  
2.85  
2.85  
3.0  
3.0  
3.0  
3.0  
3.0  
TO-263-2  
TO-263-2  
TO-252  
50 Units/ Tube  
GM6603-ATA3T  
800 Units/ Tape&Reel  
GM6603-ATA3R  
GM6603-ATC3T  
GM6603-ATC3R  
GM6603-ATB3T  
GM6603-1.5TA3T  
GM6603-1.5TA3R  
GM6603-1.5TB3T  
GM6603-1.8TA3T  
GM6603-1.8TA3R  
GM6603-1.8TC3T  
GM6603-1.8TC3R  
GM6603-1.8TB3T  
GM6603-2.5TA3T  
GM6603-2.5TA3R  
GM6603-2.5TB3T  
GM6603-2.85TA3T  
GM6603-2.85TA3R  
GM6603-2.85TB3T  
GM6603-3.0TA3T  
GM6603-3.0TA3R  
GM6603-3.0TC3T  
GM6603-3.0TC3R  
GM6603-3.0TB3T  
80 Units/ Tube  
2,500 Units/ Tape & Reel  
TO-252  
TO-220  
50 Units/ Tube  
50 Units/ Tube  
800 Units/ Tape&Reel  
50 Units/ Tube  
TO-263-2  
TO-263-2  
TO-220  
TO-263-2  
TO-263-2  
TO-252  
50 Units/ Tube  
800 Units/ Tape&Reel  
80 Units/ Tube  
2,500 Units/ Tape & Reel  
TO-252  
TO-220  
50 Units/ Tube  
50 Units/ Tube  
800 Units/ Tape&Reel  
50 Units/ Tube  
TO-263-2  
TO-263-2  
TO-220  
TO-263-2  
TO-263-2  
TO-220  
50 Units/ Tube  
800 Units/ Tape&Reel  
50 Units/ Tube  
TO-263-2  
TO-263-2  
TO-252  
50 Units/ Tube  
800 Units/ Tape&Reel  
80 Units/ Tube  
2,500 Units/ Tape & Reel  
TO-252  
TO-220  
50 Units/ Tube  
* For detail Ordering Number identification, please see last page.  
2
ORDERING INFORMATION (Continued)  
Ordering Number  
Output Voltage  
Package  
Shipping  
3.3  
3.3  
3.3  
3.3  
3.3  
5.0  
5.0  
5.0  
5.0  
5.0  
GM6603-3.3TA3T  
GM6603-3.3TA3R  
GM6603-3.3TC3T  
GM6603-3.3TC3R  
GM6603-3.3TB3T  
GM6603-5.0TA3T  
GM6603-5.0TA3R  
GM6603-5.0TC3T  
GM6603-5.0TC3R  
GM6603-5.0TB3T  
TO-263-2  
TO-263-2  
TO-252  
50 Units/ Tube  
800 Units/ Tape&Reel  
80 Units/ Tube  
2,500 Units/ Tape & Reel  
TO-252  
TO-220  
50 Units/ Tube  
50 Units/ Tube  
800 Units/ Tape&Reel  
80 Units/ Tube  
TO-263-2  
TO-263-2  
TO-252  
2,500 Units/ Tape & Reel  
TO-252  
TO-220  
50 Units/ Tube  
* For detail Ordering Number identification, please see last page.  
3
ABSOLUTE MAXIMUM RATINGS  
PARAMETER  
SYMBOL  
VALUE  
UNIT  
P
D
Power Dissipation  
Internally limited  
W
V
Input Voltage  
15  
V
IN  
Operating Junction Temperature Range  
Control Section  
T
J
0 to 125  
0 to 150  
°C  
Power Transistor  
T
LEAD  
Lead Temperature(Soldering, 10sec)  
300  
°C  
T
STG  
Storage Temperature Range  
-65 to + 150  
°C  
BLOCK DIAGRAM  
(Adjustable Version)  
V
OUT  
V
IN  
Output  
Current  
Limit  
Thermal  
Error  
Shutdown  
Amplifier  
-
+
Bandgap  
DJ  
A
Reference  
(Fixed Version)  
V
OUT  
V
IN  
Output  
Current  
Limit  
Thermal  
Error  
Shutdown  
Amplifier  
-
+
Bandgap  
Reference  
GND  
4
ELECTRICAL CHARACTERISTICS  
(Typicals and limits appearing in normal type apply for T = 25°C)  
J
Symbol  
Typ  
Parameter  
Condition  
Min  
Max Unit  
I
=10mA, V -V  
=1.5V  
1.238 1.250 1.262  
1.230 1.250 1.270  
1.782 1.800 1.818  
1.764 1.800 1.836  
2.475 2.500 2.525  
2.450 2.500 2.550  
3.267 3.300 3.333  
3.234 3.300 3.366  
4.950 5.000 5.050  
4.900 5.000 5.100  
OUT  
IN OUT  
V
Reference Voltage  
GM6603-Adj  
GM6603-1.8  
GM6603-2.5  
GM6603-3.3  
GM6603-5.0  
V
V
V
V
V
REF  
10mA  
I
3A, 3.3V  
V
IN  
7V  
OUT  
I
=10mA, V =3.3V  
IN  
OUT  
10mA  
I
3A, 3.3V  
V
IN  
7V  
OUT  
I
=10mA, V =4V  
IN  
OUT  
10mA  
I
3A, 4V  
V
IN  
7V  
OUT  
V
Output Voltage  
Line Regulation  
Load Regulation  
O
I
=10mA, V =4.8V  
IN  
OUT  
10mA  
I
3A, 4.8V  
V
IN  
7V  
OUT  
I
=10mA, V =6.5V  
IN  
OUT  
10mA  
I
3A, 6.5V  
V
IN  
7V  
OUT  
I
=10mA,  
0.04  
0.04  
0.04  
0.04  
0.04  
0.2  
0.2  
0.2  
0.2  
0.2  
1.15  
4
0.20  
0.20  
0.20  
0.20  
0.20  
0.40  
0.40  
0.40  
0.40  
0.40  
1.3  
OUT  
GM6603-Adj  
GM6603-1.8  
GM6603-2.5  
GM6603-3.3  
GM6603-5.0  
I
=10mA, 3.3V  
OUT  
V
IN  
7V  
REG  
%
I
I
=10mA, 4V  
OUT  
V
7V  
LINE  
IN  
=10mA, 4.8V  
OUT  
V
7V  
7V  
IN  
IN  
I
=10mA, 6.5V  
OUT  
V
V
V
V
V
V
I
-V =1.5V, 10mA  
IN OUT  
I
3A  
GM6603-Adj  
GM6603-1.8  
GM6603-2.5  
GM6603-3.3  
GM6603-5.0  
O
=3.8V, 10mA  
=4.5V, 10mA  
=5.3V, 10mA  
=7V, 10mA  
=3A  
I
I
I
3A  
3A  
3A  
IN  
IN  
IN  
IN  
O
O
O
REG  
%
LOAD  
I
3A  
O
V
Dropout Voltage  
Current Limit  
V
A
D
OUT  
I
V
-V =3V  
IN OUT  
3
CL  
I
V
IN  
=5V  
Minimum Load Current  
GM6603-Adj  
1.7  
5
5
mA  
O MIN  
V
=3.3V, 10mA  
=4.0V, 10mA  
=4.8V, 10mA  
=6.5V, 10mA  
I
I
I
I
3A  
3A  
3A  
3A  
V
10  
10  
10  
10  
90  
IN  
O
O
O
O
GM6603-1.8  
GM6603-2.5  
GM6603-3.3  
GM6603-5.0  
GM6603-Adj  
V
V
V
I
5
IN  
IN  
IN  
I
Q
Quiescent Current  
mA  
5
5
I
=10mA, 2.65V  
7V  
Adjust Pin Current  
Temperature Coefficient  
Ripple Rejection  
55  
µA  
%/°C  
dB  
ADJ  
OUT  
IN  
T
C
V
-V  
IN OUT  
=1.5V, I  
=10mA  
0.005  
72  
OUT  
R
A
V
-V  
IN OUT  
=1.5V, I  
=3A  
60  
OUT  
5
APPLICATION INFORMATION  
Protection Diodes  
GM6603 series linear regulators provide fixed and ad-  
justable output voltages at currents up to 3.0A. These  
regulators are protected against over current condi-  
tions and include thermal shutdown protection.  
GM6603 has a composite PNP-PN output transistor  
and require an output capacitor for stability.  
When large external capacitors are used with most  
linear regulator, it is wise to add protection diodes. If  
the input voltage of the regulator is shorted, the out-  
put capacitor will discharge into the output of the reg-  
ulator. The discharge current depends on the value  
of capacitor, output voltage, and rate at which V  
A detailed procedure for selecting this capacitor is as  
followed.  
IN  
drops.  
(a),(b)  
FIGURE 1  
. Protection Diode Scheme for  
Large Output Capacitors  
Stability Considerations  
The output compensation capacitor helps to determine  
three main characteristics of a linear regulator's perfor-  
mance: start-up delay, load transient response, and  
loop stability. The capacitor value and type is based on  
cost, availability, size, and temperature constraints. A  
tantalum or aluminum electrolytic capacitor is pre-  
ferred, as a film or ceramic capacitor with almost zero  
ESR can cause instability. An aluminum electrolytic ca-  
pacitor is the least expensive type. But when the circuit  
operates at low temperatures, both the value and ESR  
of the capacitor will vary widely. For optimum perfor-  
mance over the full operating temperature range, a tan-  
talum capacitor is the best. A 22µF tantalum capacitor  
will work fine in most applications. But with high current  
regulators, such as GM6603 higher capacitance values  
will improve the transient response and stability. Most  
applications for the GM6603's involve large changes in  
load current, so the output capacitor must supply in-  
stantaneous load current. The ESR of the output ca-  
pacitor causes an immediate drop in output voltage  
given by:  
(a) Fixed Version  
IN4002  
V
V
V
OUT  
IN  
V
IN  
OUT  
GM6603-3.3  
GND  
C2  
C1  
(b) Adjustable Version  
IN4002  
V
IN  
V
IN  
V
OUT  
V
OUT  
GM6603-Adj  
C2  
ADJ  
R1  
C1  
C
ADJ  
R2  
DV = DI x ESD  
In GM6603 linear regulators, the discharge path is  
through a large junction, and protection diodes are  
normally not needed. However, if the regulator is  
used with large output capacitance values and the in-  
put voltage is instantaneously shorted to ground,  
damage can occur. In this case, a diode connected  
as shown above in Figure 1.  
In microprocessor applications an output capacitor net-  
work of several tantalum and ceramic capacitors in par-  
allel is commonly used. This reduces overall ESR and  
minimizes the instantaneous output voltage drop under  
transient load conditions. The output capacitor network  
should be placed as close to the load as possible for  
the best results.  
6
The thermal characteristics of an IC depend on four  
factors:  
Output Voltage Sensing  
1. Maximum Ambient Temperature T (°C)  
A
GM6603 series is three terminal regulator, so they can-  
not provide true remote load sensing. Load regulation  
is limited by the resistance of the conductors connect-  
ing the regulator to the load. For best results, GM6603  
should be connected as shown in Figure 2.  
2. Power Dissipation P (Watts)  
D
3. Maximum Junction Temperature T (°C)  
J
4. Thermal Resistance Junction to ambient R  
JA  
Q
(°C/W)  
These relationship of these four factors is expressed  
by equation (1):  
Conductor  
Parasitic  
R
V
V
V
C
OUT  
T = T + P X R  
J A D  
IN  
IN  
Resistance  
Q
JA  
GM6603-3.3  
Maximum ambient temperature and power dissipa-  
tion are determined by the design while the maxi-  
mum junction temperature and thermal resistance  
depend on the manufacturer and the package type.  
R
GND  
LOAD  
(a) Fixed Version  
The maximum power dissipation for a regulator is ex-  
pressed by equation (2):  
Conductor  
Parasitic  
P
D(max)  
={V -V } I  
IN(max) OUT(min) OUT(max)  
+ V I  
IN(max) Q  
V
R
V
Resistance  
V
IN  
C
OUT  
IN  
GM6603-A  
where:  
R1  
A
DJ  
R
V
is the maximum input voltage,  
LOAD  
IN(max)  
V
is the minimum output voltage,  
OUT(min)  
R2  
I
is the maximum output current  
OUT(max)  
(b) Adjustable Version  
I is the maximum quiescent current at I  
Q
.
OUT(max)  
A heat sink effectively increases the surface area of  
the package to improve the flow of heat away from  
the IC into the air. Each material in the heat flow  
path between the IC and the environment has a ther-  
mal resistance. Like series electrical resistances,  
(a),(b)  
FIGURE 2  
Conductor Parasitic Resistance Effects are  
Minimized by this Grounding Scheme For Fixed  
and Adjustable Output Regulators  
Calculating Power Dissipation and Heat  
Sink Requirements  
these resistances are summed to determine R  
,
QJA  
the total thermal resistance between the junction  
and the air. This is expressed by equation (3):  
GM6603 series precision linear regulators include ther-  
mal shutdown and current limit circuitry to protect the  
devices. However, high power regulators normally oper-  
ate at high junction temperatures so it is important to  
calculate the power dissipation and junction tempera-  
tures accurately to be sure that you use and adequate  
R
= R + R + R  
QJC QCS  
QJA  
QSA  
Where all of the following are in °C/W:  
R
R
R
is thermal resistance of junction to case,  
is thermal resistance of case to heat sink,  
is thermal resistance of heat sink to ambient  
QJC  
QCS  
QSA  
heat sink. The case is connected to V  
on GM6603  
OUT  
air  
so electrical isolation may be required for some appli-  
cations. Thermal compound should always be used  
with high current regulators like the GM6603.  
The value for R  
is calculated using equation (3)  
QJA  
and the result can be substituted in equation (1).  
The value for R is 3.5°C/W for a given package  
QJC  
type based on an average die size. For a high cur-  
rent regulator such as GM6603, the majority of the  
heat is generated in the power transistor section.  
7
Typical Performance Characteristics  
+0.3  
+0.2  
+0.1  
0
1.20  
1.15  
T
= 0°C  
CASE  
1.10  
1.05  
1.00  
0.95  
0.90  
0.85  
0.80  
0.75  
T
= 25°C  
CASE  
-0.1  
-0.2  
-0.3  
T
= 125°C  
CASE  
0
0.30 0.60 0.90 1.20 1.50 1.80 2.10 2.40 2.70 300  
Qutput Current(A)  
0
30  
60  
90  
120  
T °C  
J
Figure 4. Bandgap Reference Voltage Deviation  
vs. Temperature  
Figure 3. Dropout Voltage vs. Output Current  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0.65  
0.60  
0.55  
0.50  
0.45  
0.40  
T
= 0°C  
CASE  
T
= 25°C  
CASE  
T
= 125°C  
CASE  
1
2
3
4
5
6
1
2
3
4
5
6
7
8
10  
10  
10  
10  
10  
10  
V
- V  
OUT(V)  
Frequency(Hz)  
IN  
Figure 5. Ripple Rejection vs. Frequency  
Figure 6. Minimum Load Current vs.  
- V  
V
IN  
OUT(V)  
8
TO-220 PACKAGE OUTLINE DIMENSIONS  
4.50 ± 0.20  
9.90 ± 0.20  
8.0  
7.0  
3.60 ± 0.20  
8.70  
+0.1  
2.80 ± 0.10  
1.30  
-0.05  
1.30 ± 0.10  
1.70  
3.70 ± 0.20  
1.50 DP0.20  
3°  
0.9  
7.0  
4.60  
8.40  
3°  
3°  
1.46  
1.00  
45°  
3.00  
3-R0.2  
1.27 ± 0.10  
+0.1  
0.80 ± 0.10  
0.50  
-0.05  
1.52 ± 0.10  
2.54 TYP  
2.40 ± 0.20  
(2.54 ± 0.20)  
3°  
3°  
2 - R 0.3  
Unit: mm  
10.00 ± 0.20  
TO-263-2 PACKAGE OUTLINE DIMENSIONS  
9.90 ± 0.20  
4.50 ± 0.20  
+0.1  
1.30  
15°  
-0.05  
0.40  
1.20  
Pad Layout  
3°  
0.63  
17.02  
1.50 DP0.20  
9.20 ± 0.20  
0.33  
8.38  
0.12  
3.05  
15.3 ± 0.20  
0.10 ± 0.01  
R0.30  
3°  
3°  
1.4 ± 0.20  
2.40 ± 0.20  
0.42  
10.66  
2.00 ± 0.10  
0.24  
6.096  
4.90 ± 0.20  
2.54 ± 0.10  
0.75  
+0.1  
0.50  
-0.05  
0.90 ± 0.10  
R0.30  
1.27 ± 0.10  
0.04  
1.016  
2.54 TYP  
(2.54 ± 0.20)  
10.0 ± 0.20  
7.0  
4.0  
Inches  
0.40  
0.90  
(
)
mm  
3°  
3°  
R 0.3  
R 0.45  
7.2  
9.20 ± 0.20  
10.00 ± 0.20  
4.90 ± 0.20  
9
Unit: mm  
TO-252 PACKAGE OUTLINE DIMENSIONS  
6.50 ± 0.05  
2.30 ± 0.05  
5.340 ± 0.05  
0.508 ± 0.0127  
29° ± 0.5°  
Pad Layout  
REF 0.6  
7°  
1.0 ± 0.05  
0.244  
6.20  
6.10 ± 0.05  
0.118  
3.0  
0.070 ± 0.05  
7.20 ± 0.05  
9.900  
7°  
0.75 ± 0.10  
2.70 ± 0.10  
7°  
0.75 ± 0.10  
0.243  
6.172  
0.228  
5.80  
0.89 ± 0.05  
1.525 ± 0.10  
R 0.25 ± 0.13  
0.81 ± 0.038  
0.063  
0.101  
2.58  
1.6  
Inches  
mm  
(
)
Unit: mm  
R0.15 max  
2°  
ORDERING NUMBER  
GM 6603 1.8 TB3 T  
Gamma Micro.  
Shipping  
T: Tube  
R: Tape & Reel  
Circuit Type  
Package  
TA3: TO-263-2  
TB3: TO-220  
TC3: TO-252  
Output Voltage  
A: Adj, 1.5: 1.5V  
1.8: 1.8V, 2.5: 2.5V  
2.85: 2.85V, 3.0: 3.0V  
3.3: 3.3V, 5.0: 5.0V  
10  
11  

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SI9130DB

 5- and 3.3-V Step-Down Synchronous Converters

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SI9135LG-T1

 SMBus Multi-Output Power-Supply Controller

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SI9135LG-T1-E3

 SMBus Multi-Output Power-Supply Controller

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SI9135_11

 SMBus Multi-Output Power-Supply Controller

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SI9136_11

 Multi-Output Power-Supply Controller

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SI9130CG-T1-E3

 Pin-Programmable Dual Controller - Portable PCs

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SI9130LG-T1-E3

 Pin-Programmable Dual Controller - Portable PCs

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SI9130_11

 Pin-Programmable Dual Controller - Portable PCs

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SI9137

 Multi-Output, Sequence Selectable Power-Supply Controller for Mobile Applications

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SI9137DB

 Multi-Output, Sequence Selectable Power-Supply Controller for Mobile Applications

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SI9137LG

 Multi-Output, Sequence Selectable Power-Supply Controller for Mobile Applications

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SI9122E

 500-kHz Half-Bridge DC/DC Controller with Integrated Secondary Synchronous Rectification Drivers

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