GMT G1084T33T 5a adjustable low-dropout linear regulator Datasheet

G1084
Global Mixed-mode Technology Inc.
5A Adjustable Low-Dropout Linear Regulator
Features
„
„
„
„
„
General Description
The G1084 is a low dropout linear regulator with a
dropout of 1.2V at 5A of load current. It is available in an adjustable version, which can set the
output from 1.25V to 5V with only two external
resistors.
Available in Adjust Version
TO-220, TO-252,TO-263 and TO-263T
Package
Internal Short Circuit Current Limiting
Internal Over Temperature Protection
Output Current 5A
The G1084 provides over temperature and over
current protection circuits to prevent it from being
damaged by abnormal operating conditions.
The G1084 is available in TO-220, TO-252, TO-263
and TO-263T packages. A minimum of 220µF
tantalum electrolytic capacitor is required at the
output to improve the transient response and stability.
Applications
„
„
„
„
„
Post Regulation for Switching DC/DC Converter
High Efficiency Linear Regulator
Battery Charger
Battery Powered Instrumentation
Motherboard
Ordering Information
ORDER
NUMBER
ORDER NUMBER
MARKING TEMP. RANGE
(Pb free)
G1084T33T
G1084T43U
G1084T33Tf
G1084T43Uf
G1084
G1084
-40°C to +85°C
-40°C to +85°C
PACKAGE
TO-220
TO-252
G1084T53U
G1084T53Uf
G1084
-40°C to +85°C
TO-263
G1084TU3U
G1084TU3Uf
G1084
-40°C to +85°C
TO-263T
* For other package types and pin options, please contact us at [email protected]
Note: T3: TO-220 T4: TO-252 T5: TO-263 TU: TO-263T (thin)
3: Bonding Code
U: Tape & Reel
T: Tube
Package Type
PIN OPTION
2
3
1
GND/ADJ
GND/ADJ
VOUT
VOUT
VIN
VIN
GND/ADJ
GND/ADJ
VOUT
VOUT
VIN
VIN
Typical Application
[Note 4]: Type of COUT
IO
VIN
VIN
Top View
Top View
2
3
TO-252/
TO-263/TO-263T
1
2
VOUT
GND/ADJ
C1
220µF
1
G1084 VOUT
R1
COUT
220µF
R2
3
TO-220
TEL: 886-3-5788833
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Ver: 1.4
Jun 14, 2007
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G1084
Global Mixed-mode Technology Inc.
Absolute Maximum Ratings
(Note 1)
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V
Power Dissipation Internally Limited
(Note 2)
Maximum Junction Temperature . . . . . . . . . . . . 150°C
Storage Temperature Range . . .-65°C ≤ TJ ≤+150°C
Reflow Temperature (soldering, 10sec) . . . . . .260°C
Thermal Resistance Junction to Ambient, (θJA)
TO-252(1). . . . . . . . . . . . . . . . . . . . . . . . . . . . 85°C/W
TO-263(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . .70°C/W
TO-263T(1) . . . . . . . . . . . . . . .. . . . . . . . . . . . 73°C/W
TO-220 No Heatsink . . . . . . . . . . . . . . . . . . 53°C/W
TO-220 with Infinite Heatsink(2). . . . . . . . . . . 23°C/W
Thermal Resistance Junction to Case, (θJC)
TO-220 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5°C/W
TO-252 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..8°C/W
TO-263 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5°C/W
TO-263T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5°C/W
ESD Rating (Human Body Model). . . . . . . . . . . .2kV
Operating Conditions
(Note 1)
(VIN-VADJ) Voltage . . . . . . . . . . . . . . . . . . . . . 2.5V~5.5V
Temperature Range . . . . . . . . . . . . . .-40°C≤TA≤ 85°C
Note (1): See Recommended Minimum Footprint
(2)
: Refer to heatsink package dimension.
Electrical Characteristics
Operating Conditions: VIN ≤ 5.5V, TA =TJ = 25°C unless otherwise specified. [Note3]
PARAMETER
CONDITION
Reference Voltage
Line Regulation
VIN - VOUT = 2V, IOUT = 10mA
(VOUT + 1.5V) < VIN < 5.5V, IOUT = 10mA
Load Regulation
Dropout Voltage
(VIN - VOUT) = 2V, 10mA < IOUT <5A
ΔVOUT = 2%, IOUT = 5A
MIN
TYP
MAX
UNIT
1.225
---
1.250
0.5
1.275
1
V
%
-----
0.04
1.3
0.5
1.5
%
V
Current Limit
(VIN - VOUT) = 2V
---
5.4
---
A
Adjust Pin Current Change
Minimum Load Current
VIN - VOUT = 2V, 10mA < IOUT < 5A
1.5V < (VIN - VOUT) < 5.25V
--10
0.15
---
-----
µA
mA
Quiescent Current
VIN - VOUT = 2V
---
80
150
µA
---
45
---
dB
-------
0.3
0.007
150
-------
%
%
°C
---
30
---
°C
Ripple Rejection
Temperature Stability
RMS Output Noise (% of VOUT)
Thermal Shutdown
f = 120Hz, COUT = 10µF Tantalum,
(VIN - VOUT) = 3V, IOUT = 1A
VIN = 4V, IO =10mA
TA = 25°C, 10Hz < f < 10kHz, ILOAD = 10mA
Junction Temperature
Thermal Shutdown Hysteresis
Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Conditions are
conditions under which the device functions but the specifications might not be guaranteed. For guaranteed specifications
and test conditions see the Electrical Characteristics.
Note2: The maximum power dissipation is a function of the maximum junction temperature, TJmax ; total thermal resistance, θJA,
and ambient temperature TA. The maximum allowable power dissipation at any ambient temperature is Tjmax-TA / θJA. If
this dissipation is exceeded, the die temperature will rise above 150°C and IC will go into thermal shutdown.
Note3: Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
Note4: The type of output capacitor should be tantalum or aluminum.
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.4
Jun 14, 2007
2
Global Mixed-mode Technology Inc.
G1084
Definitions
Line Regulation
The change in output voltage for a change in input
voltage. The measurement is made under conditions
of low dissipation or by using pulse techniques such
that average chip temperature is not significantly affected.
Output Voltage
The G1084 provides an adjustable output voltage from
1.25V to 5V. with two external resistors. It can be formulated as:
VOUT = 1.25V x (1+
R2
R1
) + IADJ x R2
Load Regulation
The change in output voltage for a change in load
current at constant chip temperature. The measurement is made under conditions of low dissipation or by
using pulse techniques such that average chip temperature is not significantly affected.
IADJ = 80µA (TYP.)
Dropout Voltage
The input/output Voltage differential at which the
regulator output no longer maintains regulation against
further reductions in input voltage. Measured when the
output drops 2% below its nominal value. Dropout
voltage is affected by junction temperature, load current and minimum input supply requirements.
Maximum Power Dissipation
The maximum total device dissipation for which the
regulator will operate within specifications.
Quiescent Bias Current
Current which is used to operate the regulator chip
and is not delivered to the load.
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.4
Jun 14, 2007
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G1084
Global Mixed-mode Technology Inc.
Typical Performance Characteristics
(VIN-VOUT = 3V, VOUT = 1.25V, CIN = 220µF, COUT = 220µF, TA=25°C, unless otherwise noted.)
Line Transient Response
Load Transient Response
Short Circuit-Current
Output Noise
Ripple Rejection
Line Regulation
70
1.275
1.270
60
1.260
625mA
40
VOUT (V)
Ripple Rejection (dB)
1.265
50
1A
30
20
1.250
1.245
T = -25°
1.240
(VIN-VOUT)>Vdropout
Vripple<0.5VP-P
COUT = 220µF
10
T = 25°C
1.255
1.235
1.230
0
1.225
10
100
1000
10000
100000
1000000
2.5
3
3.5
4
4.5
5
5.5
6
VIN (V)
Frequency (Hz)
TEL: 886-3-5788833
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Ver: 1.4
Jun 14, 2007
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G1084
Global Mixed-mode Technology Inc.
Typical Performance Characteristics (continued)
Dropout Voltage vs. IOUT
Load Regulation
5
Output Voltage Deviation (mV)
2
Dropout Voltage (V)
T = 25°C
1.5
1
0.5
IL = 10mA~2.5A
3
1
VIN = 3V
-1
VIN = 5V
-3
-5
0
0
1
2
3
-50
4
-30
IOUT (A)
10
30
50
70
Temperature (°C)
Adj Pin Current vs. Temperature
Output Voltage vs. Temperature
100
1.255
90
Adj Pin Current (µA)
VIN = 5V
1.253
1.250
VOUT (V)
-10
VIN = 3V
1.248
1.245
1.243
80
VIN = 5V
70
60
50
VIN = 3V
40
IL = 2.5A
IL = 2.5A
1.240
30
-50
-30
-10
10
30
50
70
-50
-30
Temperature (°C)
-10
10
30
50
70
Temperature (°C)
G1084T43(TO-252) Max. Power
Dissipation vs. TAMB (still air)
( Different PCB Top Copper Area )
G1084T43(TO-252) Max. Power
Dissipation vs. PCB Top Copper
Area TAMB = 25°C ; Still Air
4
4
3.5
3.5
Unit : in2
Max. Dissipation Power (W)
Max. Dissipation Power (W)
A=0.1
3
2.5
2
1.5
1
A=0.2
A=0.3
3
A=0.4
A=0.5
2.5
A=1.0
A=1.5
2
A=2.0
A=2.5
1.5
A=3.0
A=3.5
1
A=4.0
0.5
0.5
0
0
A=4.5
A=5.0
0
1
2
3
4
5
25
35
45
55
65
75
85
TAMB (°C)
2
PCB Top Copper Area (in )
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.4
Jun 14, 2007
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G1084
Global Mixed-mode Technology Inc.
Typical Performance Characteristics (continued)
G1084T53(TO-263) Max. Power
Dissipation vs. TAMB (still air)
( Different PCB Top Copper Area )
4
4
3.5
3.5
Max. Dissipation Power (W)
Max. Dissipation Power (W)
G1084T53(TO-263) Max. Power
Dissipation vs. PCB Top Copper
Area TAMB = 25°C ; Still Air
3
2.5
2
1.5
1
Unit : in2
A=1.0
A=1.5
3
A=2.0
2.5
A=2.5
2
A=3.0
1.5
A=3.5
A=4.0
1
A=4.5
0.5
0.5
0
0
A=5.0
1
2
3
4
5
25
35
45
55
65
75
85
T AMB (°C)
2
PCB Top Copper Area (in )
G1084T33 (TO-220) Max. Power
Dissipation vs. Temperature
Max. Dissipation Power (W)
6
5
Heatsink
4
3
No Heatsink
2
1
0
25
35
45
55
65
75
85
Temperature (°C)
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.4
Jun 14, 2007
6
G1084
Global Mixed-mode Technology Inc.
Recommended Minimum Footprint
TO-252
TO-263T
TO-263
Heatsink Package Dimension
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.4
Jun 14, 2007
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G1084
Global Mixed-mode Technology Inc.
Package Information
E
A
E1
E1
DIA
F
d
D
D1
I
L
e
C
A1
b
e1
b1
TO-220 (T3) Package
SYMBOL
MILLIMETER
INCH
MIN
MAX
MIN
MAX
A
4.318
4.826
0.170
0.190
A1
b
2.46
0.69
2.72
0.94
0.097
0.027
0.107
0.037
b1
C
1.143
0.304
1.397
0.460
0.045
0.012
0.055
0.018
D
D1
d
E
E1
DIA
3.429
8.53
2.62
9.906
4.953
3.708
3.683
9.04
2.87
10.40
5.22
3.962
0.135
0.336
0.103
0.390
0.195
0.146
0.145
0.356
0.113
0.410
0.206
0.156
e
e1
F
2.29
4.83
1.143
2.79
5.33
1.397
0.090
0.190
0.045
0.110
0.210
0.055
L
I
13.589
3.56
14.351
4.06
0.535
0.140
0.565
0.16
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.4
Jun 14, 2007
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G1084
Global Mixed-mode Technology Inc.
D
A
D1
C1
B
V
E
A1
L
b1
L3
L1
L2
b
e
e1
C
TO-252 (T4) Package
SYMBOL
MILLIMETERS
INCHES
MIN.
MAX.
MIN.
MAX.
A
A1
B
2.190
0.000
0.880
2.400
0.127
1.650
0.086
0.000
0.035
0.094
0.005
0.065
b
b1
0.500
0.700
0.880
0.900
0.020
0.028
0.035
0.035
C
C1
0.430
0.430
0.580
0.580
0.017
0.017
0.023
0.023
D
D1
E
e
e1
L
L1
6.350
5.200
5.400
6.730
5.460
6.220
0.250
0.205
0.213
0.265
0.215
0.245
4.500
8.830
2.550
4.700
10.77
2.900
0.177
0.348
0.100
0.185
0.424
0.114
L2
L3
1.400
0.350
1.780
1.020
0.055
0.014
0.070
0.040
V
3.800
4.320
0.150
0.170
2.300 TYP
0.091 TYP
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.4
Jun 14, 2007
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G1084
Global Mixed-mode Technology Inc.
A
D
c1
B
V
L3
E
b1
L
A1
L1
b
L2
e
e1
c
TO-263 (T5) Package
SYMBOL
MILLIMETER
INCH
MIN
MAX
MIN
MAX
A
A1
4.470
0.000
4.670
0.150
0.176
0.000
0.184
0.006
B
b
1.170
0.710
1.370
0.910
0.046
0.028
0.054
0.036
b1
c
1.170
0.310
1.370
0.530
0.046
0.012
0.054
0.021
c1
D
1.170
10.010
1.370
10.310
0.046
0.394
0.054
0.406
E
e
8.500
8.900
0.335
e1
L
4.980
15.050
5.180
15.450
0.196
0.593
0.204
0.608
L1
L2
L3
V
5.080
2.340
1.300
5.480
2.740
1.700
0.200
0.092
0.051
0.216
0.108
0.067
2.540 TYP
0.350
0.100 TYP
5.600 REF
0.220 REF
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.4
Jun 14, 2007
10
G1084
Global Mixed-mode Technology Inc.
D
A
D1
c1
B
V
E
L1
L
L3
L2
b
c
e
e1
TO-263T (TU) Package
DIMENSIONS IN INCH
DIMENSIONS IN MILLIMETER
MIN
NOM
MAX
MIN
NOM
MAX
A
B
1.750
0.880
2.000
1.280
2.250
1.680
0.069
0.345
0.079
0.050
0.089
0.066
b
c
1.255
0.381
1.295
0.406
1.335
0.431
0.049
0.015
0.051
0.016
0.053
0.017
c1
D
0.356
9.660
0.406
10.160
0.456
10.660
0.014
0.380
0.016
0.400
0.018
0.420
D1
E
8.380
6.900 REF
8.680
8.980
0.330
0.272 REF
0.342
0.354
e
e1
---------
2.540
5.080
---------
---------
0.100
0.200
---------
L
L1
13.74
-----
14.240
4.280
14.740
-----
0.541
-----
0.561
0.169
0.580
-----
L2
L3
V
2.290
---------
2.540
----7.280
2.790
1.778
-----
0.090
---------
0.100
----0.287
0.110
0.070
-----
SYMBOL
Taping Specification
PACKAGE
Q’TY/REEL
Q’TY/TUBE
TO-220
TO-252
TO-263
TO-263T
----2,500 ea
800 ea
1,500 ea
50 ea
-------------
Feed Direction
Feed Direction
TO-252 Package Orientation TO-263/TO-263T Package Orientation
GMT Inc. does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and GMT Inc. reserves the right at any time without notice to change said circuitry and specifications.
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.4
Jun 14, 2007
11
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