VIN=3V ΔVOUT LD1117 : IOUT=0 ~ 800mA
LD1117A : IOUT=0 ~ 1000mA
ΔVOUT
ΔVOUT 1000 hrs, TJ =125°C
VIN IOUT=100mA
IQ VIN≤10V
ILIMIT VIN=6.5V, TJ =25°C
LD1117 LD1117A
LD1117①L-xx-TQ3-②-③ LD1117①L-xx-S08-②-③
Note: Pin Assignment: I:VIN O:VOUT G:GND
Package
SOT-223 SOT-89 TO-220 TO-252 TO-263 TO-263-3 SOP-8
② Pin Assignment
Dropout Voltage
Thermal Regulation
SYMBOL
TEST CONDITIONS
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
For LD1117/A-1.5 PARAMETER
Output Voltage
Output Voltagon
Temperature stability Long Term Stability Operating Input Voltage Quiescent Current Current Limit Output Noise Voltage Supply Voltage Rejection
LD1117/A
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS (Ta=25℃)
PARAMETER
SYMBOL
RATINGS
DC Input Voltage
VIN
18
Power Dissipation
PD
Internally limited
Junction Temperature
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
IOUT=1000 mA
Ta=25°C, 30ms Pulse
TYP. 1.200
1.200
1
1
0.5 0.3
5
2 100 75 1.00 1.15 1.20 1.20 0.01
MAX. 1.212 1.224
6 10
15 10
5
1.10 1.25 1.30 1.30 0.10
UNIT V
V
mV
mV
UNIT V
°C °C
RECOMMENDED OPERATING RATINGS
PARAMETER Input Voltage Operating Junction Temperature Range
SYMBOL VIN TJ
RATINGS 15
0 ~ +125
UNIT V °C
ELECTRICAL CHARACTERISTICS
Dropout Voltage
Thermal Regulation
IO(MIN) VIN=15V
eN B=10Hz to 10KHz, TJ =25°C
SVR IOUT=40mA, f=120Hz, TJ =25°C,
60
VIN=4.2V, VRIPPLE=1Vpp
IOUT=100mA
VD
IOUT=500mA IOUT=800mA
TJ
+150
Storage temperature
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.
LD1117 LD1117A
eN SVR
B=10Hz to 10KHz, TJ =25°C IOUT=40mA, f=120Hz, TJ =25°C, VIN=5.5V, Vripple=1Vpp
Output Voltage
Line Regulation
Load Regulation
Temperature stability Long Term Stability Operating Input Voltage Quiescent Current Current Limit
VOUT
VOUT
ΔVOUT
ΔVOUT VIN=3.3 to 8V, IOUT=0mA
ΔVOUT
VIN=3.3V LD1117 : IOUT=0 ~ 800mA LD1117A : IOUT=0 ~ 1000mA
ΔVOUT ΔVOUT 1000 hrs, TJ =125°C
VIN IOUT=100mA IQ VIN≤8V
ILIMIT VIN=6.8V, TJ =25°C

2 of 12
QW-R102-006,Q
LD1117/A
BLOCK DIAGRAM
LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD

3 of 12
QW-R102-006,Q
LD1117①-xx-TA3-②-③ LD1117①-xx-TN3-②-③ LD1117①-xx-TQ2-②-③
LD1117①L-xx-TA3-②-③ LD1117①L-xx-TN3-②-③ LD1117①L-xx-TQ2-②-③
LD1117①-xx-TQ3-②-③ LD1117①-xx-S08-②-③
③ Packing
A: GOI B: OGI C: GIO D: IGO
R: Tape Reel T: Tube
GOOIxOOx
Copyright © 2005 Unisonic Technologies Co., Ltd
1 of 12
QW-R102-006,Q
Note: Current code: Blank: 0.8A A: 1A
PIN CONFIGURATION
GND 1
VOUT
2
VOUT
3
VIN
4
LINEAR INTEGRATED CIRCUIT
MARKING
8 NC
7
VOUT
6 VOUT
5 NC
UNISONIC TECHNOLOGIES CO., LTD
Dropout Voltage
Thermal Regulation
SYMBOL
TEST CONDITIONS
VOUT VIN=3.8V, IOUT=10mA, TJ =25°C
VOUT
VIN=3.3 to 8V LD1117 : IOUT=0 ~ 800mA LD1117A : IOUT=0 ~ 1000mA
LD1117/A
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
SOT-89
SOT-223
TO-220 TO-252 TO-263 TO-263-3
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
ΔVOUT
ΔVOUT ΔVOUT
VIN IQ ILIMIT
VIN=3.2V, IOUT=10mA, TJ=25°C VIN=2.7 to 8V LD1117 : IOUT=0 ~ 800mA LD1117A : IOUT=0 ~ 1.0A VIN=2.7 to 8V, IOUT=0mA VIN=2.7V LD1117 : IOUT=0 ~ 800mA LD1117A : IOUT=0 ~ 1000mA
(Ta=25℃, refer to the test circuits, TJ=0 to 125°C, Co=10μF unless otherwise specified)
For LD1117/A-1.2
PARAMETER
SYMBOL
TEST CONDITIONS
MIN.
Output Voltage
% % V mA mA
mA μV dB V V V V %/W
UNISONIC TECHNOLOGIES CO., LTD

4 of 12
QW-R102-006,Q
LD1117/A
LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS(Cont.)