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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 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 and TO-263 packages. A minimum of 220F 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 powered instrumentation Motherboard
Ordering Information
ORDER NUMBER
G1084-15T43U G1084-18T43U G1084-25T43U G1084-33T43U G1084-15T53U G1084-18T53U G1084-25T53U G1084-33T53U
ORDER NUMBER MARKING (Pb free)
G1084-15T43Uf G1084-18T43Uf G1084-25T43Uf G1084-33T43Uf G1084-15T53Uf G1084-18T53Uf G1084-25T53Uf G1084-33T53Uf G1084-15 G1084-18 G1084-25 G1084-33 G1084-15 G1084-18 G1084-25 G1084-33
TEMP. RANGE
-40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C
PACKAGE
TO-252 TO-252 TO-252 TO-252 TO-263 TO-263 TO-263 TO-263
1
GND GND GND GND GND GND GND GND
PIN OPTION 2
VOUT VOUT VOUT VOUT VOUT VOUT VOUT VOUT
3
VIN VIN VIN VIN VIN VIN 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
T4: TO-252 T5: TO-263 3:
PIN OPTION
1 GND 2 VOUT 3 VIN
PACKING
U: Tape & Reel
Package Type
Typical Application
[Note 4]: Type of COUT
G1084-XX
VIN VIN GND VOUT IO VOUT
Top View
C1 220F
COUT 220F
1 3 2 TO-252 TO-263
Ver: 0.6 Preliminary Apr 27, 2006
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 . . . . . . . . . . . . . . .150C Storage Temperature Range . . . . .-65C TJ +150C Reflow Temperature (soldering, 10sec) . . . . . . 260C Thermal Resistance Junction to Ambient TO-252(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95C/W TO-263(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92C/W Thermal Resistance Junction to Case TO-252 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8C/W TO-263 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..6C/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 . . . . . . . . . . . . . -40C TA 85C
Electrical Characteristics
VIN = 5V, CIN = COUT = 220F, TA = TJ = 25C unless otherwise specified. (Note3) PARAMETER
Output Voltage Line Regulation Load Regulation
CONDITION
10mA < IOUT < 5A (VOUT + 0.7V) < VIN < 5.5V, IOUT = 10mA G1084-18 VIN = 3.8V, 10mA < IOUT < 5A G1084-25 VIN = 5V, 10mA < IOUT < 5A G1084-33 VIN = 5V, 10mA < IOUT < 5A G1084-18 VOUT = 2%, IOUT = 5A G1084-25 VOUT = 2%, IOUT = 5A G1084-33 VOUT = 2%, IOUT = 5A (VIN - VOUT) = 2V G1084-18 VIN = 5V G1084-25 VIN = 5V G1084-33 VIN = 5V f = 120Hz, COUT = 10F Tantalum, (VIN - VOUT) = 3V, IOUT = 1A Junction Temperature
MIN
-2% -------------------------
TYP
VO 0.1 1 1.6 1.3 1.1 5.5 1 1.7 2.1 2.4 50 150
MAX
2% -------------------------
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, TJmax ; total thermal resistance, JA, and ambient temperature TA. The maximum allowable power dissipation at any ambient temperature is Tjmax-TA / JA. If this dissipation is exceeded, the die temperature will rise above 150C 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 current and minimum input supply requirements. 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. 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. 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.
Ver: 0.6 Preliminary Apr 27, 2006
TEL: 886-3-5788833 http://www.gmt.com.tw
2
Global Mixed-mode Technology Inc.
Typical Performance Characteristics
VIN-VOUT = 3V, CIN = 220F, COUT = 220F, TA=25C, unless otherwise noted.
Line Transient Response
G1084-XX
Load Transient Response
Short Circuit Current
70 60
Ripple Rejection (dB)
Ripple Rejection
IL=1A
50 40 IL=2A 30 20 10 0 10 IL=3A
100
1000
10000
100000 1000000
Frequency (Hz)
G1084-33 Overcurrent Protection Characteristics
G1084 Start-up
Ver: 0.6 Preliminary Apr 27, 2006
TEL: 886-3-5788833 http://www.gmt.com.tw
3
Global Mixed-mode Technology Inc.
Typical Performance Characteristics (continued)
G1084-18 Overcurrent Protection Characteristics
G1084-XX
G1084-18 Start-up
G1084 Max. Power Dissipation vs. PCB Top Copper Area
4.5 4
Max. Dissipation Power (W) Max. Dissipation Power (W)
G1084 Max. Power Dissipation vs. TAMB
4.5 4 3.5 3
A=2.0 Unit : in2 A=0.5 A=1.0 A=1.5
3.5 3 2.5 2 1.5 1 0.5 0 0.5 1.5 2.5 3.5 PCB Top Copper Area (in2) 4.5
2.5 2 1.5 1 0.5 0 25 35 45 55 65 75 85 TAMB (C)
A=2.5 A=3.0 A=3.5 A=4.0 A=4.5 A=5.0
G1084-18 Quiescent Current vs. Temperature
3.0 IL=10mA
Quiescent Current (mA)
G1084-18 Dropout Voltage vs. IL
2.0 1.8
Dropout Voltage (V)
2.5
1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 1 1.5 2 TA=-25C TA=25C TA=85C
2.0
1.5 V IN=4V 1.0 -25 -15 -5 5 15 25 35 45 55 65 75 85 Temperature ( C) V IN=5V
2.5
3 3.5 IL (A)
4
4.5
5
Ver: 0.6 Preliminary Apr 27, 2006
TEL: 886-3-5788833 http://www.gmt.com.tw
4
Global Mixed-mode Technology Inc.
Typical Performance Characteristics (continued)
G1084-XX
G1084-18 Output Voltage vs. IL
G1084-18 Output Voltage vs. Temperature
1.825 IL=10mA 1.820 Output Voltage (V) Output Voltage (V) 1.824 1.814
V IN=5V 1.804 1.794 V IN=4V 1.784 1.774 1.764 TA =25C
1.815
1.810 V IN=4V 1.805
V IN=5V
1.800 5 15 25 35 45 55 65 75 85 Temperature ( C)
0
0.5
1
1.5
2
2.5 3 IL (A)
3.5
4
4.5
5
G1084-33 Quiescent Current vs. Temperature
4.0 1400 1200
Quiescent Current (mA) Dropout Voltage (mV)
G1084-33 Dropout Voltage vs. I L
3.5
1000 800 600 400 200 0 1.0 TA =-25C TA =25C TA =85C
3.0
V IN=6V
2.5
V IN=5V
2.0 -25 -15 -5 5 15 25 35 45 55 65 75 85 Temperature (C)
1.5
2.0
2.5
3.0 3.5 IL (A)
4.0
4.5
5.0
G1084-33 Output Voltage vs. Temperature
3.334 3.334
G1084-33 Output Voltage vs. IL
3.314 Output Voltage (V)
Output Voltage (V)
V IN=6V
3.314
TA =25C V IN=6V
3.294
3.294
3.274 V IN=5V 3.254 IL=200mA 3.234 -25 -5 15 35 55 75 Temperature (C)
3.274
V IN=5V
3.254
3.234 0 1 2 IL (A) 3 4 5
Ver: 0.6 Preliminary Apr 27, 2006
TEL: 886-3-5788833 http://www.gmt.com.tw
5
Global Mixed-mode Technology Inc.
Typical Performance Characteristics (continued)
G1084-25 Quiescent Current vs. Temperature
3.50 1800 1600 3.00
Quiescent Current (mA)
G1084-XX
G1084-25 Dropout Voltage vs. IL
1400 V IN=6V
Dropout Voltage (mV)
1200 1000 800 600 400 200 TA =-25C TA =25C TA =85C
2.50
2.00 V IN=5V 1.50
1.00 -25 -15 -5 5 15 25 35 45 55 65 75 85 Temperature ( C)
0 1 2 3 IL (A) 4 5
G1084-25-Output Voltage vs. Temperature
2.59 2.57 Output Voltage (V) Output Voltage (V) 2.55 2.53 2.51 2.49 IL=10mA 2.47 2.45 -25 V IN=4V V IN=5V 2.55 2.54 2.53 2.52 2.51 2.5 2.49 2.48 2.47 2.46 2.45 -5 15 35 55 Temperature ( C) 75 0
G1084-25 Output Voltage vs. IL
TA=25C
V IN=4V V IN=5V
1
2 IL (A)
3
4
5
Recommend Minimum Footprint
TO-252 TO-263
Ver: 0.6 Preliminary Apr 27, 2006
TEL: 886-3-5788833 http://www.gmt.com.tw
6
Global Mixed-mode Technology Inc.
Package Information
E
G1084-XX
A F
E1 L1
D
H
L2 b e1 e
A1 L3
C
TO-252 (T4) Package SYMBOL
A A1 b C D E E1 e e1 F L1 L2 L3 H
MILLIMETER MIN.
2.19 0.89 0.64 0.46 5.97 6.35 5.21 2.26BSC 3.96 0.46 0.89 0.64 2.40 9.40 0 5.18 0.58 2.03 1.02 2.80 10.40 4 0.156 0.018 0.035 0.025 0.095 0.370 0
INCH MAX.
2.38 1.27 0.89 0.58 6.22 6.73 5.46
MIN.
0.086 0.035 0.025 0.018 0.235 0.250 0.205 0.09BSC
MAX.
0.094 0.050 0.035 0.023 0.245 0.265 0.215 0.204 0.023 0.080 0.040 0.110 0.410 4
Ver: 0.6 Preliminary Apr 27, 2006
TEL: 886-3-5788833 http://www.gmt.com.tw
7
Global Mixed-mode Technology Inc.
G1084-XX
A A1
E
L3
D
H C
L1
e L2 e1 b b1 A2
L
TO-263 (T5) Package SYMBOL
A A1 A2 b b1 C D E e e1 H L L1 L2 L3
MILLIMETER MIN
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 1.40MAX
INCH MAX
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
MIN
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 0.055MAX
MAX
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
Taping Specification
PACKAGE
TO-252 TO-263
Feed Direction TO-252 Package Orientation Feed Direction TO-263 Package Orientation
Q'TY/REEL
2,500 ea 800 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.
Ver: 0.6 Preliminary Apr 27, 2006
TEL: 886-3-5788833 http://www.gmt.com.tw
8

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