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Global Mixed-mode Technology Inc.
G1117
1A Adjustable Low-Dropout Linear Regulator
Features
Available in adjust version Space saving TO-252, SOT-223 and TO-92 package Internal short circuit current limiting Internal over temperature protection Output current in excess of 1A Output current in excess of 100mA with TO-92 package
General Description
The G1117 is a low dropout linear regulator with a dropout of 1.2V at 800mA of load current and 1.3V at 1A 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. The G1117 provides over temperature and over current protection circuits to prevent it from being damaged by abnormal operating conditions. The G1117 is available in TO-252, SOT-223 and TO-92 packages. A minimum of 10F 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
G1117T43U G1117T63U -----
ORDER NUMBER
(Pb free)
G1117T43Uf G1117T63Uf G1117TD3B
MARKING
G1117 G1117 G1117
TEMP.
RANGE
-40C~85C -40C~85C -40C~85C
PACKAGE
TO-252 SOT-223 TO-92
1
GND/ADJ GND/ADJ GND/ADJ
PIN OPTION 2
VOUT VOUT VOUT
3
VIN VIN VIN
* For other package types and pin options, please contact us at sales@gmt.com.tw
Order Number Identification
GXXXX XX X X Packing Type Pin Option Package Type Part Number PACKAGE TYPE
T4:TO-252 T6: SOT-223 TD: TO-92
PIN OPTION
1 3: GND/ADJ 2 VOUT 3 VIN
PACKING
U: Tape & Reel B: Bag
Package Type
Typical Application
[Note 4]: Type of COUT
IO
Top View
Top View
Top View
VIN
VIN
G1117 VOUT
GND/ADJ
VOUT
C1 1F
R1 R2
COUT 10F
1
2
3
1
2
3
TO-252
SOT-223
1
2
3
TO-92
Ver: 1.9 Mar 07, 2007
TEL: 886-3-5788833 http://www.gmt.com.tw
1
Global Mixed-mode Technology Inc.
Absolute Maximum Ratings (Note 1) Input Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7V Power Dissipation Internally Limited (Note 2) Maximum Junction Temperature . . . . . . . . . . . . . .150C Reflow Temperature (soldering, 10sec) . . . . . . 260C Thermal Resistance Junction to Ambient, (JA) SOT-223 . . . . . . . . . . . . . . . . . . . . . . . . . . . .116C/W Thermal Resistance Junction to Case, (Jc) SOT-223 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21C/W
Note (1): See Recommended Minimum Footprint
G1117
Operating Conditions (Note 1) (VIN-VADJ) Voltage. . . . . . . . . . . . . . . . . . . . . .2.5V~6.5V Temperature Range. . . . . . . . . . . . . .-40C TA 85C
Electrical Characteristics
Operating Conditions: VIN 6.5V, TJ = 25C 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 Thermal Regulation Temperature Stability RMS Output Noise (% of VOUT)
CONDITIONS
VIN - VOUT = 2V, IOUT = 10mA (VOUT + 1.5V) < VIN < 6.5V, IOUT = 10mA (VIN - VOUT) = 2V, 10mA < IOUT < 1A VOUT = 2%, IOUT = 800mA VOUT = 2%, IOUT = 1A (VIN - VOUT) = 2V VIN - VOUT = 2V, 10mA < IOUT < 1A 1.5V < (VIN - VOUT) < 5.25V VIN - VOUT = 2V f = 120Hz, COUT = 10F Tantalum, (VIN - VOUT) = 3V, IOUT = 800mA TA = 25C, 30ms pulse VIN = 4V, IO =10mA TA = 25C, 10Hz < f < 10kHz, ILOAD = 10mA
MIN
1.225 --------1000 --10 30 ---------------
TYP
1.250 1.32 0.04 1.2 1.3 1200 0.15 --80 50 0.004 0.3 0.007 116 150 10
MAX
1.275 ----1.3 1.4 ------150 --0.02 -----------
UNITS
V % % V mA A mA A dB %/W % % C/W C C
Thermal Resistor Junction-to-Ambient SOT-223; Recommended Minimum Footprint (No heat sink; No air flow) Thermal Shutdown Junction Temperature Thermal Shutdown Hysteresis Note1:
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, 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. For the G1117 in SOT-223 package; JA is 116C/W (See recommend minimum footprint). 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: 1.9 Mar 07, 2007
TEL: 886-3-5788833 http://www.gmt.com.tw
2
Global Mixed-mode Technology Inc.
Definitions
Output Voltage The G1117 provides an adjustable output voltage from 1.25V to 5V. With two external resistors. It can be formulated as: VOUT = 1.25V x (1+ IADJ = 80A (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. Line Regulation The change in output voltage for a change in input R2 R1
G1117
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.
) + IADJ x R2
Ver: 1.9 Mar 07, 2007
TEL: 886-3-5788833 http://www.gmt.com.tw
3
Global Mixed-mode Technology Inc.
Typical Performance Characteristics
VIN= 4V, CIN= 10F, COUT=10F, TA=25C, unless otherwise noted.
Line transient
G1117
Load Transient
Dropout Voltage vs. Load Current
1.06 1.04
Dropout Voutput (V)
IADJ Current vs. Load Current
94 91 85C
1.02 1 0.98 0.96 0.94 0.92 0.9 0 200
85C
IADJ Current (A)
88 85 82 79 76 73 70 -45C 25C
25C
-45C
400 600 Output Current (mA)
800
1000
0
100
200
300
400
500
600
700
800
Load Current (mA)
Ripple Rejection
60 50
Ripple Rejection (dB) Output Voltage Change (%)
Temperature Stability
1
IOUT = 100mA (V IN - V OUT ) > 3V IOUT = 800mA
0.5
40 30 20 10 0 10
0
COUT = 10F IOUT = 0.1A~0.8A
-0.5
-1 -40 100 1000 10000 Frequency (Hz) 100000
-20
0
20
40
60
80
100
Temperature (C)
Ver: 1.9 Mar 07, 2007
TEL: 886-3-5788833 http://www.gmt.com.tw
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Global Mixed-mode Technology Inc.
Typical Performance Characteristics (continued)
Output Noise
1.60 V IN = 4.5V IOUT = 10mA 1.50 Short-Circuit current (A) 1.40 1.30 1.20 1.10 1.00 0.90 25oC 115oC
G1117
Short-Circuit Current
-45oC
0.80 1.25 1.75 2.25 2.75 3.25 3.75 4.25 4.75 5.25 (V IN-V OUT ) Diffrential (V)
Load Regulation
0.15
Output Voltage Deviation (%)
Overcurrent Protection Characteristics
0.1
0.05
0
-0.05
-0.1 -40 -25 -10
5
20
35
50
65
80
95 110
Temperature( C)
SOT-223 Max. Power Dissipation vs. PCB Top Copper Area
3 2.5 2 1.5 1 0.5 0 0.5 1 1.5 2 2.5 3 3.5 4 PCB Top Copper Area (in2) 4.5 5 3 2.5 2 1.5 1 0.5 0 25
SOT-223 Max. Power Dissipation vs. TAMB
Unite:in2 A=0.5 A=1.0 A=1.5 A=2.0 A=2.5 A=3.0 A=3.5 A=4.0 A=4.5 A=5.0
Max. Dissipation Power (W)
Max. Dissipation Power (W)
45 TAMB ( oC)
65
85
Ver: 1.9 Mar 07, 2007
TEL: 886-3-5788833 http://www.gmt.com.tw
5
Global Mixed-mode Technology Inc.
Recommended Minimum Footprint
SOT-223 TO-252
G1117
Ver: 1.9 Mar 07, 2007
TEL: 886-3-5788833 http://www.gmt.com.tw
6
Global Mixed-mode Technology Inc.
Package Information
D D1 C1 B
G1117
A
V L b1 L3 L2 e e1 b C L1 A1 E
TO-252 (T4) Package SYMBOL
A A1 B b b1 C C1 D D1 E e e1 L L1 L2 L3 V
MILLIMETERS MIN.
2.190 0.000 0.880 0.500 0.700 0.430 0.430 6.350 5.200 5.400 2.300 TYP 4.500 8.830 2.550 1.400 0.350 3.800 4.700 10.77 2.900 1.780 1.020 4.320 0.177 0.348 0.100 0.055 0.014 0.150
INCHES MAX.
2.400 0.127 1.650 0.880 0.900 0.580 0.580 6.730 5.460 6.220
MIN.
0.086 0.000 0.035 0.020 0.028 0.017 0.017 0.250 0.205 0.213 0.091 TYP
MAX.
0.094 0.005 0.065 0.035 0.035 0.023 0.023 0.265 0.215 0.245 0.185 0.424 0.114 0.070 0.040 0.170
Ver: 1.9 Mar 07, 2007
TEL: 886-3-5788833 http://www.gmt.com.tw
7
Global Mixed-mode Technology Inc.
A D B1
G1117
C
13(4X)
H
E
L e e1 L2
13(4X)
A1 B
SOT-223 (T6) Package SYMBOLS
A A1 B B1 C D E e e1 H L L2 0
MILLIMETERS MIN
1.55 0.02 0.60 2.90 0.24 6.30 3.30 2.30 BSC 4.60 BSC 6.70 0.90 MIN 0.06 BSC 10 0 7.30 0.264
INCHES MAX
1.80 0.12 0.80 3.10 0.32 6.70 3.70
MIN
0.061 0.0008 0.024 0.114 0.009 0.248 0.130 0.090 BSC 0.181 BSC
MAX
0.071 0.0047 0.031 0.122 0.013 0.264 0.146
0.287 0.036 MIN 0.0024 BSC 10
Ver: 1.9 Mar 07, 2007
TEL: 886-3-5788833 http://www.gmt.com.tw
8
Global Mixed-mode Technology Inc.
G1117
L b
E e
D
C A1 D1 G
A
TO-92 (TD) Package
SYMBOL
A A1 b E C L e G D D1
MILLIMETER MIN
3.35 1.0414 0.254 4.34 0.254 14.53 1.143 3.683 4.29 4.34
INCH MAX
3.86 1.55 0.508 4.85 0.508 15.04 1.397 4.191 4.80 4.85
MIN
0.132 0.041 0.010 0.171 0.010 0.572 0.045 0.145 0.169 0.171
MAX
0.152 0.061 0.020 0.191 0.020 0.592 0.055 0.165 0.189 0.191
Package Specification
PACKAGE
TO-252 SOT-223 TO-92
Q'TY/REEL
2,500 ea 2,500 ea -----
Q'TY/BY BAG
--------2,000 ea
Feed Direction TO-252 Package Orientation
Feed Direction SOT-223 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.
Ver: 1.9 Mar 07, 2007
TEL: 886-3-5788833 http://www.gmt.com.tw
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