GMT G1085-33T53U 3a low-dropout linear regulator Datasheet

G1085-XX
Global Mixed-mode Technology Inc.
3A Low-Dropout Linear Regulator
Features
„
„
„
„
„
General Description
The G1085-XX is a low dropout linear regulator
with a dropout of 0.8V at 3A of load current. It is
available in three fixed voltages: 1.5V, 1.8V, 2.5V
and 3.3V. Refer to the G1085 for the adjustable
version.
Available in 1.5V, 1.8V, 2.5V, 3.3V version
TO-220, TO-263 package
Internal short circuit current limiting
Internal over temperature protection
Output current 3A
The G1085-XX provides over temperature and
over current protection circuits to prevent it from
being damaged by abnormal operating conditions.
Applications
„
„
„
„
Post regulation for switching DC/DC converter
High efficiency linear regulator
Battery powered instrumentation
Motherboard
The G1085-XX is available in TO-220 and TO-263
packages. A minimum of 220µF tantalum electrolytic capacitor is required at the output to improve
the transient response and stability.
Ordering Information
ORDER
NUMBER
ORDER NUMBER
MARKING
(Pb free)
TEMP.
RANGE
PACKAGE
PIN OPTION
2
3
1
G1085-15T33T
G1085-15T33Tf
G1085-15
-40°C to +85°C
TO-220
GND
VOUT
VIN
G1085-18T33T
G1085-25T33T
G1085-18T33Tf
G1085-25T33Tf
G1085-18
G1085-25
-40°C to +85°C
-40°C to +85°C
TO-220
TO-220
GND
GND
VOUT
VOUT
VIN
VIN
G1085-33T33T
G1085-15T53U
G1085-33T33Tf
G1085-15T53Uf
G1085-33
G1085-15
-40°C to +85°C
-40°C to +85°C
TO-220
TO-263
GND
GND
VOUT
VOUT
VIN
VIN
G1085-18T53U
G1085-18T53Uf
G1085-18
-40°C to +85°C
TO-263
GND
VOUT
VIN
G1085-25T53U
G1085-33T53U
G1085-25T53Uf
G1085-33T53Uf
G1085-25
G1085-33
-40°C to +85°C
-40°C to +85°C
TO-263
TO-263
GND
GND
VOUT
VOUT
VIN
VIN
* For other package types and pin options, please contact us at sales @gmt.com.tw
Order Number Identification
GXXXX-XX XX X
X
Packing Type
Pin Option
Package Type
Voltage
Part Number
PACKAGE TYPE
PIN OPTION
T3: TO-220
T5: TO-263
1
GND
3:
Package Type
2
VOUT
PACKING
3
VIN
U: Tape & Reel
T: Tube
Typical Application
[Note 4]: Type of COUT
G1085-XX
V IN
Top View
1
2
3
Top View
1
2
V OUT
GND
C1
220µF
TO-220
V OUT
V IN
IO
C OUT
220µF
3
TO-263
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.5 Preliminary
Nov 12, 2004
1
Global Mixed-mode Technology Inc.
Absolute Maximum Ratings
(Note 1)
Input Voltage…………………….………….…………8V
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
TO-220(1), TO-263(1)………………………….…92°C/W
Thermal Resistance Junction to Case
TO-220,TO-263……..……………………………6°C/W
ESD Rating (Human Body Model)………...………2kV
G1085-XX
Operating Conditions
(Note 1)
Input Voltage……….……………………………2.2V~7V
Temperature Range…………….….-40°C ≤ TA ≤85°C
Note (1): See Recommended Minimum Footprint
Electrical Characteristics
VIN = 5V, CIN = COUT = 220µF, TA = TJ = 25°C unless otherwise specified. (Note3)
PARAMETER
CONDITION
MIN
Output Voltage
Line Regulation
Load Regulation
Dropout Voltage
Current Limit
Short Circuit Current
10mA < IOUT < 3A
(VOUT + 0.7V) < VIN < 5.5V, IOUT = 10mA
G1085-18 VIN=3.8V, 10mA < IOUT < 3A
G1085-25 VIN=5V, 10mA < IOUT < 3A
G1085-33 VIN=5V, 10mA < IOUT < 3A
G1085-18 ∆VOUT = 2%, IOUT = 3A
G1085-25 ∆VOUT = 2%, IOUT = 3A
G1085-33 ∆VOUT = 2%, IOUT = 3A
(VIN - VOUT) = 2V
G1085-18 VIN = 5V
G1085-25 VIN = 5V
G1085-33 VIN = 5V
f = 120Hz, COUT = 10µF Tantalum,
Ripple Rejection
(VIN - VOUT) = 3V, IOUT = 1A
Thermal Resistor Junction-to-Ambient TO-220; Recommended Minimum Footprint
(No heat sink; No air flow)
TO-263; Recommended Minimum Footprint
TO-220
Thermal Resistance Junction-to-Case
TO-263
Thermal Shutdown
Junction Temperature
Quiescent Current
TYP
MAX
UNIT
-2%
---
VO
0.1
2%
1
V
%
---
1
2
%
----------0.5
0.5
0.5
1
0.8
0.65
5.5
1
1.7
2.1
2.4
1.2
1
0.85
----5
5
5
---
50
---
-----------
92
92
6
6
150
-----------
V
A
A
mA
dB
°C/W
°C/W
°C
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.
Definitions
Load Regulation
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.
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.
Maximum Power Dissipation
The maximum total device dissipation for which the
regulator will operate within specifications.
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.
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: 0.5 Preliminary
Nov 12, 2004
2
G1085-XX
Global Mixed-mode Technology Inc.
Electrical Characteristics
VIN-VOUT = 3V, CIN = 220µF, COUT = 220µF, TA=25°C, unless otherwise noted.
Line Transient Response
Load Transient Response
Short Circuit Current
Ripple Rejection
70
Ripple Rejection (dB)
60
IL=1A
50
40
IL=2A
30
IL=3A
20
10
0
10
100
1000
10000
100000
1000000
Frequency (Hz)
G1085-33 Overcurrent
Protection Characteristics
G1085-33 Start-up
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.5 Preliminary
Nov 12, 2004
3
G1085-XX
Global Mixed-mode Technology Inc.
Typical Performance Characteristics (continued)
G1085-18 Overcurrent Protection Characteristics
G1085-18-Start-up
G1085 Max. Power Dissipation vs. TAMB
4.5
4.5
4
4
Max. Dissipation Power (W)
Max. Dissipation Power (W)
G1085 Max. Power Dissipation
vs. PCB Top Copper Area
3.5
3
2.5
2
1.5
1
Unit : in2
A=0.5
A=1.0
3.5
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
0.5
1.5
2.5
3.5
PCB Top Copper Area (in2)
4.5
A=5.0
25
35
45
55
65
TAMB (°C)
75
85
G1085-18 Dropout Voltage vs. IL
G1085-18 Quiescent Current vs. Temperature
2.0
3.0
1.8
1.6
2.5
Dropout Voltage (V)
Quiescent Current (mA)
IL=10mA
2.0
1.5
VIN=4V
1.4
1.2
1.0
0.8
0.6
TA=85°C
0.4
VIN=5V
TA=-25°C
0.2
1.0
TA=25°C
0.0
-25 -15 -5
5
15 25 35 45 55 65 75 85
Temperature (°C)
1
1.5
2
IL (A)
2.5
3
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.5 Preliminary
Nov 12, 2004
4
G1085-XX
Global Mixed-mode Technology Inc.
Typical Performance Characteristics (continued)
G1085-18 Output Voltage vs. Temperature
G1085-18 Output Voltage vs. IL
1.825
1.824
IL=10mA
1.814
Output Voltage (V)
Output Voltage (V)
1.820
1.815
1.810
IL=5A
IL=4A
1.805
1.804
1.794
VIN=4V
VIN=5V
1.784
1.774
TA=25°C
1.764
1.800
5
15
25
35
45
55
Temperature (°C)
65
75
0
85
0.5
1
1.5
2
2.5
3
IL (A)
G1085-33 Dropout Voltage vs.IL
G1085-33 Quiescent Current vs. Temperature
4.0
1400
Dropout Voltage (mV)
Quiescent Current (mA)
1200
3.5
VIN=6V
3.0
2.5
600
400
200
2.0
5
800
TA=85°C
VIN=5V
-25 -15 -5
1000
TA=-25°C TA=25°C
0
1.0
15 25 35 45 55 65 75 85
1.5
2.0
2.5
3.0
IL (A)
Temperature (°C)
G1085-33-Output Voltage vs. Temperature
G1085-33 Output Voltage vs. IL
3.334
3.334
3.314
3.314
VIN=6V
Output Voltage (V)
Output Voltage (V)
TA=25°C
3.294
3.274
VIN=5V
3.254
VIN=6V
3.294
3.274
VIN=5V
3.254
IL=200mA
3.234
3.234
-25
-5
15
35
55
75
0
Temperature (°C)
1
IL (A)
2
3
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.5 Preliminary
Nov 12, 2004
5
G1085-XX
Global Mixed-mode Technology Inc.
Typical Performance Characteristics (continued)
G1085-25 Dropout Voltage vs.IL
G1085-25 Quiescent Current vs. Temperature
1800
3.50
Dropout Voltage (mV)
Quiescent Current (mA)
1600
3.00
2.50
2.00
VIN=6V
VIN=5V
1.50
1400
1200
1000
800
600
TA=85°C
400
TA=25°C
200
TA=-25°C
0
1.00
-25 -15 -5
5
15
25 35
45
55
65
75
1
85
1.5
2
2.5
3
IL (A)
Temperature (°C)
G1085-25 Output Voltage vs. IL
G1085-25 Output Voltage vs. Temperature
2.55
2.59
2.54
Output Voltage (V)
Output Voltage (V)
TA=25°C
2.53
2.57
2.55
2.53
2.51
VIN=5V
VIN=4V
2.49
2.52
2.51
2.5
2.49
VIN=4V
2.48
VIN=5V
2.47
2.47
2.46
IL=10mA
2.45
2.45
-25
-5
15
35
55
0
75
0.5
1
1.5
2
2.5
3
IL (A)
Temperature (°C)
Recommend Minimum Footprint
TO-263
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.5 Preliminary
Nov 12, 2004
6
G1085-XX
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
A1
4.318
2.46
4.826
2.72
0.170
0.097
0.190
0.107
b
b1
C
D
D1
d
0.69
1.143
0.304
3.429
8.53
2.62
0.94
1.397
0.460
3.683
9.04
2.87
0.027
0.045
0.012
0.135
0.336
0.103
0.037
0.055
0.018
0.145
0.356
0.113
E
9.906
10.40
0.390
0.410
E1
DIA
4.953
3.708
5.22
3.962
0.195
0.146
0.206
0.156
e
e1
F
L
I
2.29
4.83
1.143
13.589
3.56
2.79
5.33
1.397
14.351
4.06
0.090
0.190
0.045
0.535
0.140
0.110
0.210
0.055
0.565
0.16
TEL: 886-3-5788833
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Ver: 0.5 Preliminary
Nov 12, 2004
7
G1085-XX
Global Mixed-mode Technology Inc.
A
E
A1
L3
D
H
C
L1
L
e
L2
A2
e1
b
b1
TO-263 (T5) Package
SYMBOL
A
A1
A2
b
b1
C
D
E
e
e1
H
L
L1
L2
L3
MILLIMETER
INCH
MIN
MAX
MIN
MAX
4.30
1.22
2.45
0.69
1.22
0.36
8.64
9.70
2.29
4.83
14.60
4.70
1.20
2.24
4.70
1.32
2.69
0.94
1.40
0.56
9.652
10.54
2.79
5.33
15.78
5.84
1.778
2.84
0.169
0.048
0.104
0.027
0.048
0.014
0.340
0.382
0.090
0.190
0.575
0.185
0.047
0.088
0.185
0.055
0.106
0.037
0.055
0.022
0.380
0.415
0.110
0.210
0.625
0.230
0.070
0.111
1.40MAX
0.055MAX
Taping Specification
F eed D irectio n
TO -2 63 P a ck ag e O rien tatio n
PACKAGE
Q’TY/REEL
TO-220
-----
Q’TY/TUBE
50 ea
TO-263
1,000 ea
-----
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: 0.5 Preliminary
Nov 12, 2004
8
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