GL1117A [GTM]
1A Low Dropout Positive Adjustable or Fixed-Mode Regulator; 1A低压差正可调或固定模式稳压器
| 型号： | GL1117A |
| 厂家： | 
GTM CORPORATION |
| 描述： | 1A Low Dropout Positive Adjustable or Fixed-Mode Regulator |
| 文件： | 总4页 (文件大小：254K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ISSUED DATE :2003/08/02
REVISED DATE :2007/01/12E
GTM
CORPORATION
GL1117A
1A Low Dropout Positive Adjustable or Fixed-Mode Regulator
Description
The GL1117A is a low dropout at positive adjustable or fixed-mode regulator with minimum of 1A output current
capability. The product is specifically designed to provide well-regulated supply for low voltage IC applications
such as high-speed bus termination and low current 3.3V logic supply. GL1117A is also well suited for other
applications such as VGA cards. GL1117A is guaranteed to have lower than 1.4V dropout at full load current
making it ideal to provide well-regulated outputs of 1.25 to 5.0 with 6.4V to 15V input supply.
Features
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1.4Vmaximum dropout full load current
Fast transient response
Output current limiting
Built-in thermal shutdown
Good noise rejection
3-Terminal Adjustable or Fixed 1.5V,1.8V,2.5V,3.3V,5.0V
Applications
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PC peripheral
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Communication
Package Dimensions
SOT-223
Millimeter
Millimeter
Min. Max.
13°TYP.
REF.
REF.
Min.
Max.
7.30
3.10
0.10
10°
A
C
D
E
I
6.70
2.90
0.02
0°
B
J
2.30 REF.
1
2
3
4
5
6.30
6.70
6.70
3.70
3.70
1.80
6.30
3.30
3.30
1.40
0.60
0.25
0.80
0.35
H
Typical Circuit
GL1117A
Page: 1/4
ISSUED DATE :2003/08/02
REVISED DATE :2007/01/12E
GTM
CORPORATION
Block Diagram
Pin Descriptions
Name
I/O
Pin#
Function
A resistor divider from this pin to the Vout pin and ground sets the output voltage (Ground
only for fixed mode)
Adj (GND)
1
The output of the regulator. A minimum of 10uF capacitor must be connected from this pin
to ground to insure stability.
The input pin of regulator. Typically a large storage capacitor is connected from this pin to
ground to insure that the input voltage does not sag below the minimum dropout voltage
during the load transient response. This pin must always be 1.3V higher than Vout in order
for the device to regulate properly.
Vout
Vin
O
I
2
3
Absolute Maximum Ratings
Symbol
Parameter
Ratings
Unit
Vin
DC Supply Voltage
-0.3 to 15
V
PD
Power Dissipation
Internally Limited
TST
TOP
TMJ
Storage Temperature
-65 ~ + 150
0 ~ + 125
150
к
к
к
Operating Junction Temperature Range
Maximum Junction Temperature
GL1117A
Page: 2/4
ISSUED DATE :2003/08/02
REVISED DATE :2007/01/12E
GTM
CORPORATION
Electrical Characteristics
Parameter
Conditions
MIN
TYP
MAX UNIT
Reference Voltage
GL1117AADJ
GL1117A-1.5
GL1117A-1.8
GL1117A-2.5
GL1117A-3.3
GL1117A-5.0
GL1117A-XXX
GL1117AADJ
GL1117A-1.5
GL1117A-1.8
GL1117A-2.5
GL1117A-3.3
GL1117A-5.0
Io=10mA, Tj=25к, (Vin-Vout )=1.5V
Io=10mA, Tj=25к, 3.0V≤Vin≤12V
1.225 1.250 1.275
1.470 1.500 1.530
1.764 1.800 1.836
2.450 2.500 2.550
3.235 3.300 3.365
4.900 5.000 5.100
V
V
Io=10mA, Tj=25к, 3.3V≤Vin≤12V
V
Output Voltage
Line Regulation
Io=10mA, Tj=25к, 4.0V≤Vin≤12V
V
Io=10mA, Tj=25к, 4.8V≤Vin≤12V
V
Io=10mA, Tj=25к, 6.5V≤Vin≤12V
V
Io=10mA, Vout+1.5V<Vin<12V, Tj=25к
Vin=3.3V, Vadj=0, 0mA<Io<1A, Tj=25к(Note 1,2)
Vin=3.0V, 0mA<Io<1A, TJ=25к (Note 1,2)
Vin=3.3V, 0mA<Io<1A, TJ=25к (Note 1,2)
Vin=4.0V, 0mA<Io<1A, TJ=25к (Note 1,2)
Vin=5.0V, 0mA<Io<1A, TJ=25к (Note 1,2)
Vin=8.0V, 0mA<Io<1A, TJ=25к (Note 1,2)
-
-
-
-
-
-
-
-
0.2
1
%
-
%
12
15
20
26
40
15
18
25
33
50
mV
mV
mV
mV
mV
Load Regulation
Dropout Voltage
GL1117A-XXX
GL1117A-XXX
Io=1A, (∆Vout=0.1% Vout)
-
1.3
-
1.4
-
V
A
(VIN-VOUT
)
Current Limit
Vin-Vout=5V
1.1
Minimum Load Current Adjustable model Vin=5V
-
-
-
-
5
50
-
10
100
12
mA
uA
Adjust Pin Current
Quiescent Current
Thermal Regulation
Adjustable model Vin=12V, Io=10mA
fixed model Vin=12V, Io=0mA
=25к,30ms pulse
F=120HZ,COUT=25uF Tantalum, IOUT=1A
GL1117A-XXX IN=VOUT+3V
=10mA
mA
TA
0.008 0.04 %/W
Ripple Rejection
V
-
-
60
70
-
dB
%
Temperature Stability
I
O
0.5
ꢀJA Thermal Resistance
Junction-to-Ambient(No
heat sink ;No air flow)
-
117
-
к/W
ꢀ
JC Thermal Resistance
Control Circuitry/Power Transistor
-
15
-
к/W
Junction-to-Case
Note 1: See thermal regulation specifications for changes in output voltage due to heating effects. Line and load regulation
are measured at a constant junction Temperature by low duty cycle pulse testing. Load regulation is measured at the
output lead =1/18” from the package.
Note 2: Line and load regulation are guaranteed up to the maximum power dissipation of 3W. Power dissipation is
determined by the difference in input and output and the output current. Guaranteed maximum power dissipation will
not be available over the full input/output range.
GL1117A
Page: 3/4
ISSUED DATE :2003/08/02
REVISED DATE :2007/01/12E
GTM
CORPORATION
Characteristics Curve
Important Notice:
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written approval of GTM.
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GTM reserves the right to make changes to its products without notice.
GTM semiconductor products are not warranted to be suitable for use in life-support Applications, or systems.
GTM assumes no liability for any consequence of customer product design, infringement of patents, or application assistance.
Head Office And Factory:
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Taiwan: No. 17-1 Tatung Rd. Fu Kou Hsin-Chu Industrial Park, Hsin-Chu, Taiwan, R. O. C.
TEL : 886-3-597-7061 FAX : 886-3-597-9220, 597-0785
China: (201203) No.255, Jang-Jiang Tsai-Lueng RD. , Pu-Dung-Hsin District, Shang-Hai City, China
TEL : 86-21-5895-7671 ~ 4 FAX : 86-21-38950165
GL1117A
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