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Global Mixed-mode Technology
Global Mixed-mode Technology


G1084

5A Adjustable Low-Dropout Linear Regulator


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G1084 pdf
Global Mixed-mode Technology Inc.
G1084
5A Adjustable Low-Dropout Linear Regulator
Features
„ 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
Applications
„ Post Regulation for Switching DC/DC Con-
verter
„ High Efficiency Linear Regulator
„ Battery Charger
„ Battery Powered Instrumentation
„ Motherboard
General Description
The G1084 is a low dropout linear regulator with a
dropout of 1.2V at 5A of load current. It is avail-
able in an adjustable version, which can set the
output from 1.25V to 5V with only two external
resistors.
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 sta-
bility.
Ordering Information
ORDER
NUMBER
ORDER NUMBER
(Pb free)
MARKING
TEMP. RANGE
PACKAGE
G1084T33T
G1084T43U
G1084T53U
G1084TU3U
G1084T33Tf
G1084T43Uf
G1084T53Uf
G1084TU3Uf
G1084
G1084
G1084
G1084
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TO-220
TO-252
TO-263
TO-263T
* For other package types and pin options, please contact us at sales@gmt.com.tw
Note: T3: TO-220 T4: TO-252 T5: TO-263 TU: TO-263T (thin)
3: Bonding Code
U: Tape & Reel T: Tube
1
GND/ADJ
GND/ADJ
GND/ADJ
GND/ADJ
PIN OPTION
23
VOUT
VOUT
VOUT
VOUT
VIN
VIN
VIN
VIN
Package Type
Top View
123
TO-252/
TO-263/TO-263T
Top View
12 3
TO-220
Typical Application
[Note 4]: Type of COUT
IO
VIN VIN G1084 VOUT
GND/ADJ
VOUT
C1
220µF
R1
R2
C22O0UµTF
Ver: 1.4
Jun 14, 2007
TEL: 886-3-5788833
http://www.gmt.com.tw
1



No Preview Available !

G1084 pdf
Global Mixed-mode Technology Inc.
G1084
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°CTA85°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
Reference Voltage
Line Regulation
Load Regulation
Dropout Voltage
Current Limit
Adjust Pin Current Change
Minimum Load Current
Quiescent Current
Ripple Rejection
Temperature Stability
RMS Output Noise (% of VOUT)
Thermal Shutdown
Thermal Shutdown Hysteresis
CONDITION
VIN - VOUT = 2V, IOUT = 10mA
(VOUT + 1.5V) < VIN < 5.5V, IOUT = 10mA
(VIN - VOUT) = 2V, 10mA < IOUT <5A
ΔVOUT = 2%, IOUT = 5A
(VIN - VOUT) = 2V
VIN - VOUT = 2V, 10mA < IOUT < 5A
1.5V < (VIN - VOUT) < 5.25V
VIN - VOUT = 2V
f = 120Hz, COUT = 10µF Tantalum,
(VIN - VOUT) = 3V, IOUT = 1A
VIN = 4V, IO =10mA
TA = 25°C, 10Hz < f < 10kHz, ILOAD = 10mA
Junction Temperature
MIN
1.225
---
---
---
---
---
10
---
TYP
1.250
0.5
0.04
1.3
5.4
0.15
---
80
--- 45
--- 0.3
--- 0.007
--- 150
--- 30
MAX
1.275
1
0.5
1.5
---
---
---
150
---
---
---
---
---
UNIT
V
%
%
V
A
µA
mA
µA
dB
%
%
°C
°C
Note 1:
Note2:
Note3:
Note4:
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.
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.
Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
The type of output capacitor should be tantalum or aluminum.
Ver: 1.4
Jun 14, 2007
TEL: 886-3-5788833
http://www.gmt.com.tw
2



Part Number G1084
Description 5A Adjustable Low-Dropout Linear Regulator
Maker Global Mixed-mode Technology - Global Mixed-mode Technology
Total Page 11 Pages
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