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L1117L-2.85 [ETC]

1A Fixed and Adjustable Low Dropout Linear Regulator (LDO); 1A固定和可调低压差线性稳压器（ LDO ）
L1117L-2.85
型号： L1117L-2.85
厂家： ETC    ETC
描述：

1A Fixed and Adjustable Low Dropout Linear Regulator (LDO)
1A固定和可调低压差线性稳压器（ LDO ）

稳压器
文件： 总10页 (文件大小：101K)
中文：  中文翻译
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L1117 Series  
SOT-223, TO-252,  
TO-220,TO-263  
1A Fixed and Adjustable Low  
Dropout Linear Regulator (LDO)  
NIKO-SEM  
GENERAL DESCRIPTION  
FEATURES  
The L1117 Series are positive and low drop-  
out three-terminal voltage regulators with  
1A output current capability. These devices  
are designed for use in low voltage applica-  
tions that offers lower dropout voltage and  
faster transient response.  
Fixed 2.5V, 2.85V, 3.3V, 5V or adjustable  
output voltage  
Low dropout voltage:  
1.2V typical at up to 1A  
Low ground current  
Fast transient response  
Current & thermal limiting  
Line regulation: 0.5% typical  
Load regulation: 0.5% typical  
SOT-223,TO-220,TO-252,TO-263  
package  
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These devices are fully protected against  
over current faults, over temperature oper-  
ation, reversed input polarity, reversed lead  
insertion, transient voltage spike …etc.  
On-Chips trimming the reference voltage to  
2% and features the low dropout of maxi-  
mum 1.45 volts.  
APPLICATIONS  
2.85V active SCSI terminators  
8-15V to 5V linear regulators  
5V to 2.5V or 3.3V linear regulators  
Low voltage micro-controllers  
Battery Chargers  
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The L1117 Series regulators offer fixed and  
adjustable voltage options available in the  
popular industry standard SOT-223, TO-220,  
TO-252 and TO-263 packages.  
Motherboard clock supplies  
Post regulator for switching supplies  
Micro-controllers  
ABSOLUTE MAXIMUM RATINGS  
Operating Junction  
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Maximum Supply Voltage  
15V*  
0 to 125 °C  
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Temperature Range  
Storage Temperature  
Range  
Lead Temperature  
(Soldering, 10 Seconds)  
Internally  
Limited  
Power Dissipation  
-40 to 150 °C  
260 °C  
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Thermal Resistance  
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16 °C/W  
Junction to Case,  
θJC  
Thermal Resistance  
Junction to Ambient,  
SOT-223  
z
θJA  
158 °C/W  
70 °C/W  
50 °C/W  
60 °C/W  
TO-252  
TO-220  
TO-263  
* When considering short circuits to ground, the maximum input-to-output differential voltage shall not be allowed  
greater than approximate 2~3V at values of supply voltage in excess of 10V, continuous short-circuits can exceed  
the power dissipation ratings and cause eventual destruction.  
JUL-27-2001  
1
L1117 Series  
SOT-223, TO-252,  
TO-220,TO-263  
1A Fixed and Adjustable Low  
Dropout Linear Regulator (LDO)  
NIKO-SEM  
ELECTRICAL CHARACTERISTICS for ADJUSTABLE(Unless otherwise specified, TA = 25°C)  
Parameter  
Symbol  
Test Conditions  
Typical  
1.25V  
VO  
Limits  
Reference Voltage  
(Adjustable version)  
Output Voltage  
(Fixed version)  
Dropout Voltage  
1.23VMin  
1.27VMax  
0.98VO(Min)  
1.02VO(Max)  
1.45V  
VREF VIN = 5V, IOUT = 10mA  
VO  
VIN = 5V, IOUT = 10mA  
REF = 1%, IOUT = 1A  
VD  
REG(LINE)  
1.2V  
0.5%  
0.5%  
V
Δ
Line Regulation  
2%  
2.5%  
(VOUT + 1.5V) V  
15V, IOUT = 10mA  
≤
≤
IN  
Load Regulation  
Minimum Load  
Current  
Adjust Pin Current  
Current Limit  
REG  
(LOAD) (V -V ) = 2V, 10mA I  
≤
OUT  
1A  
≤
IN  
OUT  
IO  
IADJ  
ICL  
10mA  
1.5V (V -V ) 5.75V  
≤
≤
IN  
OUT  
55 A  
100 A  
µ
µ
VIN - VOUT = 2V  
1.2A  
1.1A (Min)  
0.003%  
of VOUT  
RMS Output Noise  
VN  
RA  
Ripple Rejection  
Ratio  
f = 120Hz, CADJ = 22 F for ADJ pin,  
VIN = 5V, IOUT = 1A  
µ
72dB  
60dB (Min)  
(Unless otherwise specified, TA = 25 °C)  
ELECTRICAL CHARACTERISTICS for L1117-2.5  
Parameter  
Symbol  
Test Conditions  
Typical  
Limits  
Output Voltage  
(Fixed version)  
Dropout Voltage  
Line Regulation  
Load Regulation  
2.45V(Min)  
2.55V(Max)  
1.45V  
VO  
VIN = 5V, IOUT = 10mA  
V = 1%, IOUT = 1A  
VO  
VD  
REG(LINE)  
1.2V  
0.5%  
0.5%  
Δ
O
2.0%  
2.0%  
(VOUT + 1.5V) V  
15V, IOUT = 10mA  
≤
≤
IN  
REG  
(LOAD) (V -V ) = 2V, 10mA I  
≤
OUT  
1A  
≤
IN  
OUT  
Minimum Load  
Current  
GND Pin Current  
IO  
IGND  
ICL  
10mA  
1.5V (V -V ) 5.75V  
≤
≤
IN  
OUT  
55 A  
100 A  
µ
µ
Current Limit  
VIN - VOUT = 2V  
1.2A  
1.1A (Min)  
0.003%  
of VOUT  
RMS Output Noise  
VN  
RA  
Ripple Rejection  
Ratio  
f = 120Hz, Co=22Uf,VIN = 5V,  
IOUT = 1A  
72dB  
60dB (Min)  
JUL-27-2001  
2
L1117 Series  
SOT-223, TO-252,  
TO-220,TO-263  
1A Fixed and Adjustable Low  
Dropout Linear Regulator (LDO)  
NIKO-SEM  
(Unless otherwise specified, TA = 25 °C)  
ELECTRICAL CHARACTERISTICS for L1117-2.85  
Parameter  
Symbol  
Test Conditions  
Typical  
Limits  
Output Voltage  
(Fixed version)  
Dropout Voltage  
Line Regulation  
Load Regulation  
2.793V(Min)  
2.907V(Max)  
1.45V  
VO  
VIN = 5V, IOUT = 10mA  
V = 1%, IOUT = 1A  
VO  
VD  
REG(LINE)  
1.2V  
0.5%  
0.5%  
Δ
O
2.0%  
2.0%  
(VOUT + 1.5V) V  
8V, IOUT = 10mA  
≤
≤
IN  
REG  
(LOAD) (V -V ) = 2V, 10mA I  
≤
OUT  
1A  
≤
IN  
OUT  
Minimum Load  
Current  
GND Pin Current  
IO  
IGND  
ICL  
10mA  
1.5V (V -V ) 5.75V  
≤
≤
IN  
OUT  
55 A  
100 A  
µ
µ
Current Limit  
VIN - VOUT = 2V  
1.2A  
1.1A (Min)  
0.003%  
of VOUT  
RMS Output Noise  
VN  
RA  
Ripple Rejection  
Ratio  
f = 120Hz, Co=22Uf,VIN = 5V,  
IOUT = 1A  
72dB  
60dB (Min)  
(Unless otherwise specified, TA = 25 °C)  
ELECTRICAL CHARACTERISTICS for L1117-3.3  
Parameter  
Symbol  
Test Conditions  
Typical  
Limits  
Output Voltage  
(Fixed version)  
Dropout Voltage  
Line Regulation  
Load Regulation  
3.234V(Min)  
3.367V(Max)  
1.45V  
VO  
VIN = 5V, IOUT = 10mA  
V = 1%, IOUT = 1A  
VO  
VD  
REG(LINE)  
1.2V  
0.5%  
0.5%  
Δ
O
2.0%  
2.0%  
(VOUT + 1.5V) V  
15V, IOUT = 10mA  
≤
≤
IN  
REG  
(LOAD) (V -V ) = 2V, 10mA I  
≤
OUT  
1A  
≤
IN  
OUT  
Minimum Load  
Current  
GND Pin Current  
IO  
IGND  
ICL  
10mA  
1.5V (V -V ) 5.75V  
≤
≤
IN  
OUT  
55 A  
100 A  
µ
µ
Current Limit  
VIN - VOUT = 2V  
1.2A  
1.1A (Min)  
0.003%  
of VOUT  
RMS Output Noise  
VN  
RA  
Ripple Rejection  
Ratio  
f = 120Hz, Co=22Uf,VIN = 5V,  
IOUT = 1A  
72dB  
60dB (Min)  
JUL-27-2001  
3
L1117 Series  
SOT-223, TO-252,  
TO-220,TO-263  
1A Fixed and Adjustable Low  
Dropout Linear Regulator (LDO)  
NIKO-SEM  
(Unless otherwise specified, TA = 25 °C)  
ELECTRICAL CHARACTERISTICS for L1117-5  
Parameter  
Symbol  
Test Conditions  
Typical  
Limits  
Output Voltage  
(Fixed version)  
Dropout Voltage  
Line Regulation  
Load Regulation  
4.90V(Min)  
5.10V(Max)  
1.45V  
VO  
VIN = 8V, IOUT = 10mA  
V = 1%, IOUT = 1A  
VO  
VD  
REG(LINE)  
1.2V  
0.5%  
0.5%  
Δ
O
1.0%  
1.0%  
(VOUT + 1.5V) V  
15V, IOUT = 10mA  
≤
≤
IN  
REG  
(LOAD) (V -V ) = 2V, 10mA I  
≤
OUT  
1A  
≤
IN  
OUT  
Minimum Load  
Current  
GND Pin Current  
IO  
IGND  
ICL  
10mA  
1.5V (V -V ) 5.75V  
≤
≤
IN  
OUT  
55 A  
100 A  
µ
µ
Current Limit  
VIN - VOUT = 2V  
1.2A  
1.1A (Min)  
0.003%  
of VOUT  
RMS Output Noise  
VN  
RA  
Ripple Rejection  
Ratio  
f = 120Hz, Co=22uf,VIN = 8V,  
IOUT = 1A  
72dB  
60dB (Min)  
DEVICE SELECTION GUIDE  
L1117L  
ADJ  
SOT-223  
L1117L  
L1117D L1117L-2.5 L1117L-2.85 L1117L-3.3 L1117D-3.3 L1117L-5  
Device  
Voltage Version  
Package  
ADJ  
2.5  
2.85  
3.3  
3.3  
5
TO-252  
SOT-223  
SOT-223  
SOT-223  
TO-252  
SOT-223  
L1117D L1117L-2.5 L1117L-2.85 L1117L-3.3 L1117D-3.3 L1117L-5  
Marking  
L1117D-5  
5
TO-252  
L1117D-5  
L1117T L1117T-3.3 L1117T-5  
L1117S-5  
5
TO-263  
L1117S-5  
Device  
Voltage Version  
Package  
ADJ  
3.3  
5
TO-220  
TO-220  
TO-220  
L1117T L1117T-3.3 L1117T-5  
Marking  
JUL-27-2001  
4
L1117 Series  
SOT-223, TO-252,  
TO-220,TO-263  
1A Fixed and Adjustable Low  
Dropout Linear Regulator (LDO)  
NIKO-SEM  
TYPICAL APPLICATION  
Vin  
Vin  
Vout  
L1117  
IN  
OUT  
Cout  
4.3v-8V  
IN  
OUT  
L1117-2.85  
ADJ  
Iadj  
Vref  
R1  
R2  
GND  
Cin  
Cout  
10uF  
Cin  
+
+
+
+
18~27 Lines  
10uF  
10uF  
22uF  
Vo = Vref (1+R2/R1) + Iadj x R2  
1. Cin needed if device is far from from filter capacitors.  
2. Cout required for stability.  
- Basic Adjustable Regulator Circuit -  
- Active SCSI Bus Terminators -  
Vin > 4.75V  
Vout=3.3V  
Vin > 4.00V  
Vout=2.5V  
IN  
OUT  
IN  
OUT  
L1117-3.3  
GND  
L1117-2.5  
GND  
Cin  
Cout  
22uF  
+
+
RL  
Cin  
Cout  
22uF  
+
+
10uF  
RL  
10uF  
Basic Fixed Output Regulator Circuit  
Basic Fixed Output Regulator Circuit  
Vin>6.5V  
IN  
OUT  
L1117-5  
GND  
Cin  
Cout  
22uF  
+
+
RL  
10uF  
Basic Fixed Output Regulator Circuit  
JUL-27-2001  
5
L1117 Series  
SOT-223, TO-252,  
TO-220,TO-263  
1A Fixed and Adjustable Low  
Dropout Linear Regulator (LDO)  
NIKO-SEM  
PIN CONFIGURATIONS  
Pin #  
Function  
Adjust/Ground  
Output  
1
2
3
Input  
Note: TAB is Output Pin  
JUL-27-2001  
6
L1117 Series  
SOT-223, TO-252,  
TO-220,TO-263  
1A Fixed and Adjustable Low  
Dropout Linear Regulator (LDO)  
NIKO-SEM  
SOT-223 MECHANICAL DATA  
mm  
mm  
Dimension  
Dimension  
Min.  
Typ.  
0.7  
7
Max.  
0.73  
7.3  
Min.  
3.3  
Typ.  
3.5  
Max.  
3.7  
A
B
C
D
E
F
0.67  
6.7  
H
I
0.63  
0.65  
0.32  
0.67  
0.4  
2.9  
3
3.1  
J
2.27  
4.57  
1.5  
2.3  
4.6  
1.6  
6.5  
2.33  
4.63  
1.7  
K
L
0
10  
°
°
0.03  
0.1  
M
N
G
6.3  
6.7  
JUL-27-2001  
7
L1117 Series  
SOT-223, TO-252,  
TO-220,TO-263  
1A Fixed and Adjustable Low  
Dropout Linear Regulator (LDO)  
NIKO-SEM  
TO-252 (DPAK) MECHANICAL DATA  
mm  
mm  
Dimension  
Dimension  
Min.  
Typ.  
Max.  
10.1  
2.4  
Min.  
Typ.  
0.8  
Max.  
A
B
C
D
E
F
9.35  
2.2  
H
I
6.4  
5.2  
6.6  
5.4  
1
0.48  
0.89  
0.45  
0.03  
6
0.6  
J
1.5  
K
L
0.6  
0.6  
0.64  
4.4  
0.9  
4.6  
0.23  
6.2  
M
N
G
JUL-27-2001  
8
L1117 Series  
SOT-223, TO-252,  
TO-220,TO-263  
1A Fixed and Adjustable Low  
Dropout Linear Regulator (LDO)  
NIKO-SEM  
TO-220 (3-Lead) MECHANICAL DATA  
mm  
mm  
Dimension  
Dimension  
Min.  
Typ.  
10.16  
2.74  
20  
Max.  
10.54  
2.87  
Min.  
2.4  
Typ.  
2.54  
1.27  
4.6  
Max.  
2.68  
1.35  
4.8  
A
B
C
D
E
F
9.78  
2.61  
H
I
1.19  
4.4  
J
28.5  
14.6  
8.4  
28.9  
15.0  
8.8  
29.3  
15.4  
9.2  
K
L
1.14  
2.3  
1.27  
2.6  
1.4  
2.9  
M
N
0.26  
0.46  
0.66  
G
0.72  
0.8  
0.88  
7
°
JUL-27-2001  
9
L1117 Series  
SOT-223, TO-252,  
TO-220,TO-263  
1A Fixed and Adjustable Low  
Dropout Linear Regulator (LDO)  
NIKO-SEM  
TO-263 (D2PAK) MECHANICAL DATA  
mm  
mm  
Dimension  
Dimension  
Min.  
Typ.  
15  
Max.  
15.8  
4.7  
Min.  
1.0  
Typ.  
1.5  
Max.  
1.8  
A
B
C
D
E
F
14.5  
4.2  
H
I
9.8  
10.3  
1.20  
1.35  
J
6.5  
1.5  
2.8  
0.4  
K
L
0.3  
-0.102  
8.5  
0.5  
0.203  
9.5  
0.7  
1.4  
M
N
4.83  
5.08  
5.33  
G
9
JUL-27-2001  
10  

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