LD1117AL-12-AA3-A-R [UTC]

LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS; 低压降固定和可调正电压调节器
LD1117AL-12-AA3-A-R
型号: LD1117AL-12-AA3-A-R
厂家: Unisonic Technologies    Unisonic Technologies
描述:

LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
低压降固定和可调正电压调节器

线性稳压器IC 调节器 电源电路
文件: 总12页 (文件大小:344K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
UNISONIC TECHNOLOGIES CO., LTD  
LD1117/A  
LINEAR INTEGRATED CIRCUIT  
LOW DROP FIXED AND  
ADJUSTABLE POSITIVE  
VOLTAGE REGULATORS  
„
DESCRIPTION  
The UTC LD1117/A is a low dropout, 3-terminal positive  
voltage regulator designed to provide output current up to  
800mA/1A, There are adjustable version (VREF=1.25V) and various  
fixed versions.  
„
FEATURES  
* Low dropout voltage  
* Suitable for SCSI-2 active termination if VOUT set to 2.85V  
* Output current up to 0.8A for 1117 and 1.0A for 1117A  
* Built-in current limit and over temperature protection  
* Available in ±1%(at 25°C) and 2% in all temperature range  
* Low current consumption  
*Pb-free plating product number:  
LD1117L-xx / LD1117AL-xx  
„
ORDERING INFORMATION  
Order Number  
Package  
Pin Assignment  
Packing  
Normal  
Lead Free Plating  
LD1117-xx-AA3--③  
LD1117-xx-AB3--③  
LD1117-xx-TA3--③  
LD1117-xx-TN3--③  
LD1117-xx-TQ2--③  
LD1117-xx-TQ3--③  
LD1117-xx-S08--③  
LD1117L-xx-AA3--③  
LD1117L-xx-AB3--③  
LD1117L-xx-TA3--③  
LD1117L-xx-TN3--③  
LD1117L-xx-TQ2--③  
LD1117L-xx-TQ3--③  
LD1117L-xx-S08--③  
SOT-223  
SOT-89  
TO-220  
TO-252  
TO-263  
TO-263-3  
SOP-8  
A: GOI  
B: OGI  
C: GIO  
D: IGO  
R: Tape Reel  
T: Tube  
GOOIxOOx  
Note: Pin Assignment: I:VIN O:VOUT G:GND  
www.unisonic.com.tw  
1 of 12  
Copyright © 2005 Unisonic Technologies Co., Ltd  
QW-R102-006,Q  
LD1117/A  
LINEAR INTEGRATED CIRCUIT  
„
MARKING INFORMATION  
PACKAGE  
VOLTAGE CODE  
MARKING  
SOT-89  
12 :1.2V  
15 :1.5V  
18 :1.8V  
25 :2.5V  
2J :2.85V  
30 :3.0V  
33 :3.3V  
36 :3.6V  
50 :5.0V  
AD :ADJ  
SOT-223  
TO-220  
TO-252  
TO-263  
TO-263-3  
Note: Current code: Blank: 0.8A  
A: 1A  
„
PIN CONFIGURATION  
GND  
NC  
1
2
3
4
8
7
6
5
VOUT  
VOUT  
NC  
VOUT  
VOUT  
VIN  
UNISONIC TECHNOLOGIES CO., LTD  
2 of 12  
QW-R102-006,Q  
www.unisonic.com.tw  
LD1117/A  
LINEAR INTEGRATED CIRCUIT  
„
BLOCK DIAGRAM  
UNISONIC TECHNOLOGIES CO., LTD  
3 of 12  
QW-R102-006,Q  
www.unisonic.com.tw  
LD1117/A  
LINEAR INTEGRATED CIRCUIT  
„
ABSOLUTE MAXIMUM RATINGS (Ta=25)  
PARAMETER  
SYMBOL  
VIN  
RATINGS  
18  
UNIT  
V
DC Input Voltage  
Power Dissipation  
Junction Temperature  
Storage temperature  
PD  
Internally limited  
+150  
TJ  
°C  
°C  
TSTG  
-65 ~ +150  
Note Absolute maximum ratings are those values beyond which the device could be permanently damaged.  
Absolute maximum ratings are stress ratings only and functional device operation is not implied.  
„
RECOMMENDED OPERATING RATINGS  
PARAMETER  
SYMBOL  
RATINGS  
15  
UNIT  
Input Voltage  
VIN  
TJ  
V
Operating Junction Temperature Range  
0 ~ +125  
°C  
„
ELECTRICAL CHARACTERISTICS  
(Ta=25, refer to the test circuits, TJ=0 to 125°C, Co=10μF unless otherwise specified)  
For LD1117/A-1.2  
PARAMETER  
Output Voltage  
SYMBOL  
TEST CONDITIONS  
MIN.  
TYP.  
MAX.  
1.212  
UNIT  
V
VOUT VIN=3.2V, IOUT=10mA, TJ=25°C  
VIN=2.7 to 8V  
1.188  
1.200  
Output Voltage  
Line Regulation  
Load Regulation  
VOUT LD1117 : IOUT=0 ~ 800mA  
LD1117A : IOUT=0 ~ 1.0A  
ΔVOUT VIN=2.7 to 8V, IOUT=0mA  
VIN=2.7V  
ΔVOUT LD1117 : IOUT=0 ~ 800mA  
LD1117A : IOUT=0 ~ 1000mA  
ΔVOUT  
1.176  
1.200  
1.224  
6
V
1
1
mV  
mV  
10  
Temperature stability  
Long Term Stability  
Operating Input Voltage  
Quiescent Current  
0.5  
0.3  
%
%
ΔVOUT 1000 hrs, TJ =125°C  
VIN  
IQ  
IOUT=100mA  
15  
10  
V
VIN10V  
5
mA  
LD1117  
800  
Current Limit  
ILIMIT VIN=6.2V, TJ =25°C  
mA  
LD1117A 1000  
Minimum Load Current  
Output Noise Voltage  
IO(MIN) VIN=15V  
2
5
mA  
eN  
B=10Hz to 10KHz, TJ =25°C  
100  
μV  
I
OUT=40mA, f=120Hz, TJ =25°C,  
Supply Voltage Rejection  
SVR  
60  
75  
dB  
VIN=4.2V, VRIPPLE=1Vpp  
IOUT=100mA  
I
I
I
1.00  
1.15  
1.20  
1.20  
0.01  
1.10  
1.25  
1.30  
1.30  
0.10  
V
V
V
OUT=500mA  
OUT=800mA  
OUT=1000 mA  
Dropout Voltage  
VD  
V
Thermal Regulation  
Ta=25°C, 30ms Pulse  
%/W  
UNISONIC TECHNOLOGIES CO., LTD  
4 of 12  
QW-R102-006,Q  
www.unisonic.com.tw  
LD1117/A  
LINEAR INTEGRATED CIRCUIT  
„
ELECTRICAL CHARACTERISTICS(Cont.)  
For LD1117/A-1.5  
PARAMETER  
SYMBOL  
TEST CONDITIONS  
MIN.  
TYP.  
MAX.  
1.515  
UNIT  
V
Output Voltage  
Output Voltage  
Line Regulation  
Load Regulation  
VOUT VIN=3.5V, IOUT=10mA, TJ=25°C  
VIN=3 to 8V  
VOUT LD1117 : IOUT=0 ~ 800mA  
LD1117A : IOUT=0 ~ 1.0A  
ΔVOUT VIN=3 to 8V, IOUT=0mA  
VIN=3V  
ΔVOUT LD1117 : IOUT=0 ~ 800mA  
LD1117A : IOUT=0 ~ 1000mA  
ΔVOUT  
1.485  
1.500  
1.470  
1.500  
1.530  
6
V
1
1
mV  
mV  
10  
Temperature stability  
Long Term Stability  
Operating Input Voltage  
Quiescent Current  
0.5  
0.3  
%
%
ΔVOUT 1000 hrs, TJ =125°C  
VIN  
IQ  
IOUT=100mA  
15  
10  
V
VIN10V  
5
mA  
LD1117  
LD1117A 1000  
B=10Hz to 10KHz, TJ =25°C  
800  
Current Limit  
ILIMIT VIN=6.5V, TJ =25°C  
mA  
μV  
dB  
Output Noise Voltage  
Supply Voltage Rejection  
eN  
100  
75  
I
OUT=40mA, f=120Hz, TJ =25°C,  
SVR  
60  
VIN=4.5V, VRIPPLE=1Vpp  
IOUT=100mA  
1.00  
1.15  
1.20  
1.20  
0.01  
1.10  
1.25  
1.30  
1.30  
0.10  
V
V
V
I
I
I
OUT=500mA  
OUT=800mA  
OUT=1000 mA  
Dropout Voltage  
VD  
V
Thermal Regulation  
Ta=25°C, 30ms Pulse  
%/W  
For LD1117/A-1.8  
PARAMETER  
SYMBOL  
TEST CONDITIONS  
MIN.  
TYP.  
MAX.  
1.820  
UNIT  
V
Output Voltage  
VOUT VIN=3.8V, IOUT=10mA, TJ =25°C  
VIN=3.3 to 8V  
1.780  
1.800  
Output Voltage  
Line Regulation  
Load Regulation  
VOUT LD1117 : IOUT=0 ~ 800mA  
LD1117A : IOUT=0 ~ 1000mA  
ΔVOUT VIN=3.3 to 8V, IOUT=0mA  
VIN=3.3V  
ΔVOUT LD1117 : IOUT=0 ~ 800mA  
LD1117A : IOUT=0 ~ 1000mA  
ΔVOUT  
1.760  
1.800  
1.840  
6
V
1
1
mV  
mV  
10  
Temperature stability  
Long Term Stability  
Operating Input Voltage  
Quiescent Current  
0.5  
0.3  
%
%
ΔVOUT 1000 hrs, TJ =125°C  
VIN  
IQ  
IOUT=100mA  
10  
10  
V
VIN8V  
5
mA  
LD1117  
LD1117A 1000  
B=10Hz to 10KHz, TJ =25°C  
800  
Current Limit  
ILIMIT VIN=6.8V, TJ =25°C  
mA  
μV  
dB  
Output Noise Voltage  
Supply Voltage Rejection  
eN  
100  
75  
I
OUT=40mA, f=120Hz, TJ =25°C,  
SVR  
60  
VIN=5.5V, Vripple=1Vpp  
IOUT=100mA  
1.00  
1.15  
1.20  
1.20  
0.01  
1.10  
1.25  
1.30  
1.30  
0.10  
V
V
V
I
I
I
OUT=500mA  
OUT=800mA  
OUT=1000 mA  
Dropout Voltage  
VD  
V
Thermal Regulation  
Ta=25°C, 30ms Pulse  
%/W  
UNISONIC TECHNOLOGIES CO., LTD  
5 of 12  
QW-R102-006,Q  
www.unisonic.com.tw  
LD1117/A  
LINEAR INTEGRATED CIRCUIT  
„
ELECTRICAL CHARACTERISTICS(Cont.)  
For LD1117/A-2.5  
PARAMETER  
SYMBOL  
VOUT  
TEST CONDITIONS  
VIN=4.5V,IOUT=10mA,  
TJ=25°C  
MIN.  
2.475  
2.450  
TYP.  
2.500  
2.500  
MAX.  
2.525  
2.550  
UNIT  
V
1%  
2%  
Output Voltage  
VIN=3.9 to 10V  
LD1117 : IOUT=0 ~ 800mA  
LD1117A : IOUT=0 ~ 1.0A  
2%  
4%  
2.450  
2.400  
2.500  
2.550  
Output Voltage  
Line Regulation  
Load Regulation  
VOUT  
V
2.500  
1
2.600  
6
ΔVOUT VIN=3.9 to 10V, IOUT=0mA  
VIN=3.9V  
mV  
mV  
ΔVOUT LD1117 : IOUT=0 ~ 800mA  
LD1117A : IOUT=0 ~ 1000mA  
ΔVOUT  
1
10  
Temperature stability  
Long Term Stability  
Operating Input Voltage  
Quiescent Current  
0.5  
0.3  
%
%
ΔVOUT 1000 hrs, TJ =125°C  
VIN  
IQ  
IOUT=100mA  
15  
10  
V
VIN10V  
5
mA  
LD1117  
LD1117A  
B=10Hz to 10KHz, TJ =25°C  
OUT=40mA, f=120Hz, TJ =25°C,  
VIN=5.5V, Vripple=1Vpp  
IOUT=100mA  
800  
Current Limit  
ILIMIT VIN=7.5V, TJ =25°C  
mA  
μV  
dB  
1000  
Output Noise Voltage  
Supply Voltage Rejection  
eN  
100  
75  
I
SVR  
60  
1.00  
1.15  
1.20  
1.20  
0.01  
1.10  
1.25  
1.30  
1.30  
0.10  
V
V
V
I
I
I
OUT=500mA  
OUT=800mA  
OUT=1000 mA  
Dropout Voltage  
VD  
V
Thermal Regulation  
Ta=25°C, 30ms Pulse  
%/W  
For LD1117/A-2.85  
PARAMETER  
SYMBOL  
TEST CONDITIONS  
MIN.  
TYP.  
MAX.  
2.880  
UNIT  
V
Output Voltage  
VOUT VIN=4.85V, IOUT=10mA, TJ =25°C  
2.828  
2.850  
VIN=4.25 to 10V  
VOUT LD1117 : IOUT=0 ~ 800mA  
LD1117A : IOUT=0 ~ 1.0A  
ΔVOUT VIN=4.25 to 10V, Io=0mA  
VIN=4.25V  
ΔVOUT LD1117 : IOUT=0 ~ 800mA  
LD1117A : IOUT=0 ~ 1000mA  
ΔVOUT  
Output Voltage  
Line Regulation  
Load Regulation  
2.790  
2.850  
2.910  
6
V
1
1
mV  
mV  
10  
Temperature stability  
Long Term Stability  
Operating Input Voltage  
Quiescent Current  
0.5  
0.3  
%
%
ΔVOUT 1000 hrs, TJ =125°C  
VIN  
IQ  
IOUT=100mA  
15  
10  
V
VIN10V  
5
mA  
LD1117  
800  
Current Limit  
ILIMIT VIN=7.85V, TJ =25°C  
mA  
μV  
dB  
LD1117A  
1000  
Output Noise Voltage  
Supply Voltage Rejection  
eN  
B=10Hz to 10KHz, TJ =25°C  
OUT=40mA, f=120Hz, TJ =25°C,  
100  
75  
I
SVR  
60  
VIN=5.85V, Vripple=1Vpp  
IOUT=100mA  
1.00  
1.15  
1.20  
1.20  
0.01  
1.10  
1.25  
1.30  
1.30  
0.10  
V
V
V
I
I
I
OUT=500mA  
OUT=800mA  
OUT=1000 mA  
Dropout Voltage  
VD  
V
Thermal Regulation  
Ta=25°C, 30ms Pulse  
%/W  
UNISONIC TECHNOLOGIES CO., LTD  
6 of 12  
QW-R102-006,Q  
www.unisonic.com.tw  
LD1117/A  
LINEAR INTEGRATED CIRCUIT  
„
ELECTRICAL CHARACTERISTICS(Cont.)  
For LD1117/A-3.0  
PARAMETER  
SYMBOL  
TEST CONDITIONS  
MIN.  
2.970  
2.940  
TYP.  
3.000  
3.000  
MAX.  
3.030  
3.060  
UNIT  
V
1%  
2%  
Output Voltage  
VOUT VIN=5V,IOUT=10mA,TJ =25°C  
VIN=4.5 to 10V  
LD1117 : IOUT=0 ~ 800mA  
LD1117A : IOUT=0 ~ 1.0A  
2%  
4%  
2.940  
2.880  
3.000  
3.060  
Output Voltage  
Line Regulation  
Load Regulation  
VOUT  
V
3.000  
1
3.120  
6
ΔVOUT VIN=4.5 to 12V, IOUT=0mA  
VIN=4.5V  
mV  
mV  
ΔVOUT LD1117 : IOUT=0 ~ 800mA  
LD1117A : IOUT=0 ~ 1000mA  
ΔVOUT  
1
10  
Temperature stability  
Long Term Stability  
Operating Input Voltage  
Quiescent Current  
0.5  
0.3  
%
%
ΔVOUT 1000 hrs, TJ =125°C  
VIN  
IQ  
IOUT=100mA  
15  
10  
V
VIN10V  
5
mA  
LD1117  
LD1117A  
B=10Hz to 10KHz, TJ =25°C  
OUT=40mA, f=120Hz, TJ =25°C,  
VIN=6V, VRIPPLE=1Vpp  
IOUT=100mA  
800  
Current Limit  
ILIMIT VIN=8V, TJ =25°C  
mA  
μV  
dB  
1000  
Output Noise Voltage  
Supply Voltage Rejection  
eN  
100  
75  
I
SVR  
60  
1.00  
1.15  
1.20  
1.20  
0.01  
1.10  
1.25  
1.30  
1.30  
0.10  
V
V
V
I
I
I
OUT=500mA  
OUT=800mA  
OUT=1000 mA  
Dropout Voltage  
VD  
V
Thermal Regulation  
Ta=25°C, 30ms Pulse  
%/W  
For LD1117/A-3.3  
PARAMETER  
SYMBOL  
VOUT  
TEST CONDITIONS  
MIN.  
3.267  
3.235  
TYP.  
3.300  
3.300  
MAX.  
3.333  
3.365  
UNIT  
V
VIN=5.3V,IOUT=10mA,  
TJ=25°C  
1%  
2%  
Output Voltage  
VIN=4.75 to 10V  
LD1117 : IOUT=0 ~ 800mA  
LD1117A : IOUT=0 ~ 1.0A  
2%  
4%  
3.235  
3.160  
3.300  
3.365  
Output Voltage  
Line Regulation  
Load Regulation  
VOUT  
V
3.300  
1
3.440  
6
ΔVOUT VIN=4.75 to 15V, IOUT=0mA  
VIN=4.75V  
mV  
mV  
ΔVOUT LD1117 : IOUT=0 ~ 800mA  
LD1117A : IOUT=0 ~ 1000mA  
ΔVOUT  
1
10  
Temperature stability  
Long Term Stability  
Operating Input Voltage  
Quiescent Current  
0.5  
0.3  
%
%
ΔVOUT 1000 hrs, TJ =125°C  
VIN  
IQ  
IOUT=100mA  
15  
10  
V
VIN15V  
5
mA  
LD1117  
LD1117A  
B=10Hz to 10KHz, TJ =25°C  
OUT=40mA, f=120Hz, TJ =25°C,  
VIN=6.3V, VRIPPLE=1Vpp  
IOUT=100mA  
800  
Current Limit  
ILIMIT VIN=8.3V, TJ =25°C  
mA  
μV  
dB  
1000  
Output Noise Voltage  
Supply Voltage Rejection  
eN  
100  
75  
I
SVR  
60  
1.00  
1.15  
1.20  
1.20  
0.01  
1.10  
1.25  
1.30  
1.30  
0.10  
V
V
V
I
I
I
OUT=500mA  
OUT=800mA  
OUT=1000 mA  
Dropout Voltage  
VD  
V
Thermal Regulation  
Ta=25°C, 30ms Pulse  
%/W  
UNISONIC TECHNOLOGIES CO., LTD  
7 of 12  
QW-R102-006,Q  
www.unisonic.com.tw  
LD1117/A  
LINEAR INTEGRATED CIRCUIT  
„
ELECTRICAL CHARACTERISTICS(Cont.)  
For LD1117/A-3.6  
PARAMETER  
SYMBOL  
TEST CONDITIONS  
MIN.  
TYP.  
MAX.  
3.636  
UNIT  
V
3.564  
3.600  
Output Voltage  
Output Voltage  
Line Regulation  
Load Regulation  
VOUT VIN=5.6V, IOUT=10mA, TJ =25°C  
VIN=5 to 10V  
3.528  
3.600  
3.672  
6
VOUT LD1117 : IOUT=0 ~ 800mA  
LD1117A : IOUT=0 ~ 1.0A  
ΔVOUT VIN=5 to 15V, IOUT=0mA  
VIN=5V  
ΔVOUT LD1117 : IOUT=0 ~ 800mA  
LD1117A : IOUT=0 ~ 1000mA  
ΔVOUT  
ΔVOUT 1000 hrs, TJ =125°C  
VIN  
IQ  
V
1
1
mV  
mV  
10  
Temperature stability  
Long Term Stability  
Operating Input Voltage  
Quiescent Current  
0.5  
0.3  
%
%
IOUT=100mA  
15  
10  
V
VIN15V  
5
mA  
LD1117  
800  
Current Limit  
ILIMIT VIN=8.6V, Tj=25°C  
mA  
μV  
dB  
LD1117A  
1000  
Output Noise Voltage  
Supply Voltage Rejection  
eN  
B=10Hz to 10KHz, TJ =25°C  
OUT=40mA, f=120Hz, TJ =25°C,  
100  
75  
I
SVR  
60  
VIN=6.6V, VRIPPLE=1Vpp  
IOUT=100mA  
1.00  
1.15  
1.20  
1.20  
0.01  
1.10  
1.25  
1.30  
1.30  
0.10  
V
V
V
I
I
I
OUT=500mA  
OUT=800mA  
OUT=1000 mA  
Dropout Voltage  
VD  
V
Thermal Regulation  
Ta=25°C, 30ms Pulse  
%/W  
For LD1117/A-5.0  
PARAMETER  
SYMBOL  
TEST CONDITIONS  
MIN.  
4.950  
4.900  
TYP.  
5.000  
5.000  
MAX.  
5.050  
5.100  
UNIT  
V
1%  
2%  
Output Voltage  
VOUT VIN=7V,IOUT=10mA, TJ =25°C  
VIN=6.5 to 15V  
LD1117 : IOUT=0 ~ 800mA  
LD1117A : IOUT=0 ~ 1.0A  
2%  
4%  
4.900  
4.800  
5.000  
5.100  
Output Voltage  
Line Regulation  
Load Regulation  
VOUT  
V
5.000  
1
5.200  
6
ΔVOUT VIN=6.5 to 15V, IOUT=0mA  
VIN=6.5V  
mV  
mV  
ΔVOUT LD1117 : IOUT=0 ~ 800mA  
LD1117A : IOUT=0 ~ 1000mA  
ΔVOUT  
1
10  
Temperature stability  
Long Term Stability  
Operating Input Voltage  
Quiescent Current  
0.5  
0.3  
%
%
ΔVOUT 1000 hrs, TJ =125°C  
VIN  
IQ  
IOUT=100mA  
15  
10  
V
VIN15V  
5
mA  
LD1117  
LD1117A  
B=10Hz to 10KHz, TJ =25°C  
OUT=40mA, f=120Hz, TJ =25°C,  
VIN=8V, VRIPPLE=1Vpp  
IOUT=100mA  
800  
Current Limit  
ILIMIT VIN=10V, TJ =25°C  
mA  
μV  
dB  
1000  
Output Noise Voltage  
Supply Voltage Rejection  
eN  
100  
75  
I
SVR  
60  
1.00  
1.15  
1.20  
1.20  
0.01  
1.10  
1.25  
1.30  
1.30  
0.10  
V
V
V
I
I
I
OUT=500mA  
OUT=800mA  
OUT=1000 mA  
Dropout Voltage  
VD  
V
Thermal Regulation  
Ta=25°C, 30ms Pulse  
%/W  
UNISONIC TECHNOLOGIES CO., LTD  
8 of 12  
QW-R102-006,Q  
www.unisonic.com.tw  
LD1117/A  
LINEAR INTEGRATED CIRCUIT  
„
ELECTRICAL CHARACTERISTICS(Cont.)  
For LD1117/A-ADJUSTABLE  
PARAMETER  
SYMBOL  
TEST CONDITIONS  
MIN  
TYP  
1.25  
MAX  
UNIT  
V
Reference Voltage  
VREF VIN-VOUT=2V, IOUT=10mA, TJ =25°C  
VIN-VOUT=1.4 to 10V  
1.238  
1.262  
Reference Voltage  
Line Regulation  
Load Regulation  
VREF LD1117 : IOUT=10 ~ 800mA  
LD1117A : IOUT=10 ~ 1000mA  
ΔVOUT VIN-VOUT=1.5 to 13.75V, IOUT=10mA  
VIN-VOUT=3V  
ΔVOUT LD1117 : IOUT=10 ~ 800mA  
LD1117A : IOUT=10 ~ 1000mA  
ΔVOUT  
1.225  
1.275  
0.200  
0.400  
V
%
%
0.035  
0.10  
Temperature stability  
Long Term Stability  
0.50  
0.3  
%
%
V
ΔVOUT 1000 hrs, TJ =125°C  
VIN  
Operating Input Voltage  
Adjustment Pin Current  
15  
IADJ  
VIN15V  
60  
1
120  
μA  
VIN-VOUT=1.4 to 10V,  
Adjustment Pin Current Change  
ΔIADJ LD1117 : IOUT=10 ~ 800mA  
LD1117A : IOUT=10 ~ 1000mA  
IO(MIN) VIN=15V  
5
5
μA  
Minimum Load Current  
Current Limit  
2
mA  
mA  
%
LD1117  
800  
ILIMIT VIN-VOUT=5V, TJ =25°C  
LD1117A 1000  
Output Noise (%Vo)  
Supply Voltage Rejection  
eN  
B=10Hz to 10KHz, TJ =25°C  
0.003  
75  
I
OUT=40mA, f=120Hz, TJ =25°C,  
SVR  
60  
dB  
VIN-VOUT=3V, Vripple=1Vpp  
IOUT=100mA  
1.00  
1.15  
1.20  
1.20  
0.01  
1.10  
1.25  
1.30  
1.30  
0.10  
V
V
V
I
I
I
OUT=500mA  
OUT=800mA  
OUT=1000mA  
Dropout Voltage  
VD  
V
Thermal Regulation  
Ta=25°C, 30ms Pulse  
%/W  
„
THERMAL DATA  
PARAMETER  
SYMBOL  
RATINGS  
UNIT  
SOT-223  
SOP-8  
15  
20  
12  
4
Thermal Resistance Junction-Case  
θJC  
°C/W  
TO-252  
TO-220  
TO-263  
SOT-223  
SOP-8  
4
165  
150  
112  
54  
64  
Thermal Resistance Junction-Ambient  
θJA  
TO-252  
TO-220  
TO-263  
°C/W  
UNISONIC TECHNOLOGIES CO., LTD  
9 of 12  
QW-R102-006,Q  
www.unisonic.com.tw  
LD1117/A  
LINEAR INTEGRATED CIRCUIT  
„
TYPICAL APPLICATIONS  
UTC LD1117/A-5.0V  
IN  
VIN  
OUT  
+
+
GND  
10μF  
100μF  
VOUT = -5V  
Floating Input  
FIG.1 Negative Supply  
110  
110  
110  
UTC LD1117/A-  
18-27  
Lines  
2.85V  
IN  
22μF  
+
+
GND  
4.75V  
to  
110  
10μF  
5.25V  
FIG.2 Active Terminator for SCSI-2 BUS  
FIG.3 Circuit for Increasing Output Voltage  
UNISONIC TECHNOLOGIES CO., LTD  
10 of 12  
QW-R102-006,Q  
www.unisonic.com.tw  
LD1117/A  
LINEAR INTEGRATED CIRCUIT  
„
APPLICATION NOTE of LD1117/A ADJUSTABLE  
The LD1117/A ADJUSTABLE has a reference voltage of between the OUT and ADJ pins. IADJ is 60μA typ.  
(120μA max.) and ΔIADJ is 1μA typ. (5μA max.).  
R1 is normally fixed to 120Ω.  
From figure 4 we obtain:  
VOUT=VREF+R2(IADJ + IR1)=VREF + R2(IADJ + VREF / R1)=VREF(1+R2/R1) + R2 x IADJ.  
Usually R2 value is in the range of few K, so the R2 X IADJ product could be neglected; then the above  
expression becomes: VOUT=VREF(1+R2/R1)  
For better load regulation, realize a good Kelvin connection of R1 and R2 is important. Particularly R1  
connection must be realized very close to OUT and ADJ pin, while R2 ground connection must be placed as  
near as possible to the negative Load pin. Ripple rejection can be improved by introducing a 10μF electrolytic  
capacitor placed in parallel to the R2 resistor (See Fig. 5)  
UTC LD1117/A  
VIN  
VOUT  
IN  
OUT  
+
+
ADJ  
10μF  
10μF  
R1  
120Ω  
VREF  
R2  
FIG.4 Adjustable Output Voltage Application Circuit  
FIG.5 Adjustable Output Voltage Application with improved Ripple Rejection.  
UNISONIC TECHNOLOGIES CO., LTD  
11 of 12  
QW-R102-006,Q  
www.unisonic.com.tw  
LD1117/A  
LINEAR INTEGRATED CIRCUIT  
„
TYPICAL PERFORMANCE CHARACTERISTICS  
UTC assumes no responsibility for equipment failures that result from using products at values that  
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or  
other parameters) listed in products specifications of any and all UTC products described or contained  
herein. UTC products are not designed for use in life support appliances, devices or systems where  
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in  
whole or in part is prohibited without the prior written consent of the copyright owner. The information  
presented in this document does not form part of any quotation or contract, is believed to be accurate  
and reliable and may be changed without notice.  
UNISONIC TECHNOLOGIES CO., LTD  
12 of 12  
QW-R102-006,Q  
www.unisonic.com.tw  

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