Global Mixed-mode Technology Inc.
G1084-XX
5A Low-Dropout Linear Regulator
Features
Available in 1.5V, 1.8V, 2.5V, 3.3V version
TO-252,TO-263 and TO-263T package
Internal short circuit current limiting
Internal over temperature protection
Output current 5A
General Description
The G1084-XX is a low dropout linear regulator
with a dropout of 1.3V at 5A of load current. It is
available in three fixed voltages: 1.5V, 1.8V, 2.5V
and 3.3V. Refer to the G1084 for the adjustable
version.
The G1084-XX provides over temperature and
over current protection circuits to prevent it from
being damaged by abnormal operating conditions.
The G1084-XX is available in TO-252, TO-263 and
TO-263T packages. A minimum of 220µF tanta-
lum electrolytic capacitor is required at the output
to improve the transient response and stability.
Applications
Post regulation for switching DC/DC con-
verter
High efficiency linear regulator
Battery powered instrumentation
Motherboard
Ordering Information
ORDER
NUMBER
G1084-15T43U
G1084-18T43U
G1084-25T43U
G1084-33T43U
G1084-15T53U
ORDER NUMBER
MARKING
(Pb free)
G1084-15T43Uf
G1084-18T43Uf
G1084-25T43Uf
G1084-33T43Uf
G1084-15T53Uf
G1084-15
G1084-18
G1084-25
G1084-33
G1084-15
TEMP.
RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PACKAGE
TO-252
TO-252
TO-252
TO-252
TO-263
1
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
PIN OPTION
2
V
OUT
V
OUT
V
OUT
V
OUT
V
OUT
V
OUT
V
OUT
V
OUT
V
OUT
V
OUT
V
OUT
V
OUT
3
V
IN
V
IN
V
IN
V
IN
V
IN
V
IN
V
IN
V
IN
V
IN
V
IN
V
IN
V
IN
G1084-18T53U
G1084-18T53Uf
G1084-18 -40°C to +85°C
TO-263
G1084-25T53U
G1084-25T53Uf
G1084-25 -40°C to +85°C
TO-263
G1084-33T53U
G1084-33T53Uf
G1084-33 -40°C to +85°C
TO-263
G1084-15TU3U
G1084-15TU3Uf
G1084-15 -40°C to +85°C
TO-263T
G1084-18TU3U
G1084-18TU3Uf
G1084-18 -40°C to +85°C
TO-263T
G1084-25TU3U
G1084-25TU3Uf
G1084-25 -40°C to +85°C
TO-263T
G1084-33TU3U
G1084-33TU3Uf
G1084-33 -40°C to +85°C
TO-263T
* For other package types and pin options, please contact us at sales@gmt.com.tw
Note: T4: TO-252 T5: TO-263
TU: TO-263T (thin)
3: Bonding Code
U: Tape & Reel
Package Type
Typical Application
[Note 4]: Type of C
OUT
I
O
V
OUT
G1084-XX
V
IN
V
IN
GND
V
OUT
Top View
C1
220µF
C
OUT
220µF
3
2
TO-252/
TO-263/TO-263T
1
Ver: 0.9
Jun 14, 2007
TEL: 886-3-5788833
http://www.gmt.com.tw
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
≤
T
J
≤+150°C
Reflow Temperature (soldering, 10sec) . . . . . . 260°C
Thermal Resistance Junction to Ambient
TO-252
(1)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95°C/W
TO-263
(1)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80°C/W
TO-263T
(1)
. . . . . . . . . . . . . . . . . . . . . . . . . . . .82°C/W
Thermal Resistance Junction to Case
TO-252 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8°C/W
TO-263 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..6°C/W
TO-263T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6°C/W
ESD Rating (Human Body Model) . . . . . . . . . . . . .2kV
Note
(1)
: See Recommended Minimum Footprint
G1084-XX
Operating Conditions
(Note 1)
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . .2.2V~7V
Temperature Range . . . . . . . . . . . . . -40°C
≤
T
A
≤85°C
Electrical Characteristics
V
IN
= 5V, C
IN
= C
OUT
= 220µF, T
A
= T
J
= 25°C unless otherwise specified. (Note3)
PARAMETER
Output Voltage
Line Regulation
Load Regulation
CONDITION
10mA < I
OUT
< 5A
(V
OUT
+ 0.7V) < V
IN
< 5.5V, I
OUT
= 10mA
G1084-18 V
IN
= 3.8V, 10mA < I
OUT
< 5A
G1084-25 V
IN
= 5V, 10mA < I
OUT
< 5A
G1084-33 V
IN
= 5V, 10mA < I
OUT
< 5A
G1084-18
ΔV
OUT
= 2%, I
OUT
= 5A
G1084-25
ΔV
OUT
= 2%, I
OUT
= 5A
G1084-33
ΔV
OUT
= 2%, I
OUT
= 5A
(V
IN
- V
OUT
) = 2V
G1084-18 V
IN
= 5V
G1084-25 V
IN
= 5V
G1084-33 V
IN
= 5V
f = 120Hz, C
OUT
= 10µF Tantalum,
(V
IN
- V
OUT
) = 3V, I
OUT
= 1A
Junction Temperature
MIN
-2%
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TYP
V
O
0.1
1
1.6
1.3
1.1
5.5
1
1.7
2.1
2.4
50
150
MAX
2%
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UNIT
V
%
%
Dropout Voltage
Current Limit
Short Circuit Current
Quiescent Current
Ripple Rejection
Thermal Shutdown
V
A
A
mA
dB
°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, T
Jmax
; total thermal resistance,
θ
JA
,
and ambient temperature T
A
. The maximum allowable power dissipation at any ambient temperature is T
jmax
-T
A
/
θ
JA
. 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
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 cur-
rent and minimum input supply requirements.
Line Regulation
The change in output voltage for a change in input volt-
age. The measurement is made under conditions of low
dissipation or by using pulse techniques such that av-
erage chip temperature is not significantly affected.
Ver: 0.9
Jun 14, 2007
Load Regulation
The change in output voltage for a change in load
current at constant chip temperature. The measure-
ment is made under conditions of low dissipation or by
using pulse techniques such that average chip tem-
perature is not significantly affected.
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
2
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