UNISONIC TECHNOLOGIES CO., LTD
LD1117/A LINEAR INTEGRATED CIRCUIT
www.unisonic.com.tw 1 of 15
Copyright © 2012 Unisonic Technologies Co., Ltd QW-R102-006.AG
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
* Support MLCC
ORDERING INFORMATION
Ordering Number Package d
Pin Assignment
e
Packing
Lead Free Halogen Free
LD1117cL-xx-AA3-d-e LD1117cG-xx-AA3-d-eSOT-223
R: Tape Reel
T: Tube
LD1117cL-xx-AB3-d-e LD1117cG-xx-AB3-d-eSOT-89 Pin Code 12
3
LD1117cL-xx-TA3-d-e LD1117cG-xx-TA3-d-eTO-220 A G O I
LD1117cL-xx-TF3-d-e LD1117cG-xx-TF3-d-eTO-220F B O G I
LD1117cL-xx-TN3-d-e LD1117cG-xx-TN3-d-eTO-252 C G I O
LD1117cL-xx-TQ2-d-e LD1117cG-xx-TQ2-d-eTO-263 D I G O
LD1117cL-xx-TQ3-d-e LD1117cG-xx-TQ3-d-eTO-263-3
LD1117cL-xx-S08-d-e LD1117cG-xx-S08-d-eSOP-8 GOOIxOOx
Note: Pin Assignment: I: VIN O: VOUT G: GND/ADJ
(1) R: Tape Reel, T: Tube
(2) refer to Pin Assignment
(3) AA3: SOT-223, AB3: SOT-89, TA3:TO-220,
(3) TF3: TO-220F, TN3: TO-252, TQ2: TO-263,
(3) TQ3: TO-263-3, S08: SOP-8
(4) xx: refer to Marking Information
(5) G: Halogen Free, L: Lead Free
(6) Blank: 800mA, A: 1A
LD1117 L-xx-AA3- -
(1)Packing Type
(2)Pin Assignment
(3)Package Type
(4)Output Voltage Code
(5)Lead Plating
(6)Current Code
LD1117/A LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD 2 of 15
www.unisonic.com.tw QW-R102-006.AG
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-220F
TO-252
TO-263
TO-263-3
Note: Current code: Blank: 0.8A A: 1A
PIN CONFIGURATION of SOP-8
1NC
VIN
GND/
ADJ
VOUT
VOUT
VOUT
VOUT
NC
2
3
4 5
6
7
8
LD1117/A LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD 3 of 15
www.unisonic.com.tw QW-R102-006.AG
BLOCK DIAGRAM
LD1117/A LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD 4 of 15
www.unisonic.com.tw QW-R102-006.AG
ABSOLUTE MAXIMUM RATINGS (TA=25°C)
PARAMETER SYMBOL RATINGS UNIT
DC Input Voltage VIN 18 V
Power Dissipation PD Internally limited
Junction Temperature TJ +150 °C
Storage temperature TSTG -65 ~ +150 °C
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 UNIT
Input Voltage VIN 15 V
Operating Junction Temperature TJ 0 ~ +125 °C
THERMAL DATA
PARAMETER SYMBOL RATINGS UNIT
Junction to Ambient
SOT-223
θJA
165 °C/W
SOT-89 180 °C/W
SOP-8 150 °C/W
TO-252 112 °C/W
TO-220 54 °C/W
TO-263 64 °C/W
Junction to Case
SOT-223
θJC
15 °C/W
SOT-89 50 °C/W
SOP-8 20 °C/W
TO-252 12 °C/W
TO-220 4 °C/W
TO-263 4 °C/W
LD1117/A LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD 5 of 15
www.unisonic.com.tw QW-R102-006.AG
ELECTRICAL CHARACTERISTICS
(TA=25°C, refer to the test circuits, TJ=0 ~ 125°C, CO=10μF unless otherwise specified)
For LD1117/ A-1.2
PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNIT
Output Voltage VOUT V
IN=3.2V, IOUT=10mA, TJ=25°C 1.176 1.200 1.224 V
Output Voltage VOUT
VIN=2.7 to 8V
LD1117 : IOUT=10~800mA
LD1117A : IOUT=10~1000mA
1.176 1.200 1.224 V
Line Regulation ΔVOUT V
IN=2.7 to 8V, IOUT=10mA 1 6 mV
Load Regulation ΔVOUT
VIN=2.7V
LD1117 : IOUT=10~800mA
LD1117A : IOUT=10~1000mA
1 10 mV
Temperature stability ΔVOUT 0.5 %
Long Term Stability ΔVOUT 1000 hrs, TJ=125°C 0.3 %
Operating Input Voltage VIN I
OUT=100mA 15 V
Quiescent Current IQ V
IN≤10V 5 10 mA
Current Limit ILIMIT V
IN=6.2V, TJ=25°C LD1117 800 mA
LD1117A 1000
Minimum Load Current IO
(
MIN
)
V
IN=15V 2 5 mA
Output Noise Voltage eN B=10Hz to 10KHz, TJ=25°C 100 μV
Supply Voltage Rejection SVR IOUT=40mA, f=120Hz, TJ=25°C,
VIN=4.2V, VRIPPLE =1VPP 60 75 dB
Dropout Voltage VD
IOUT=100mA 1.00 1.10
V
IOUT=500mA 1.15 1.25
IOUT=800mA 1.20 1.30
IOUT=1A 1.20 1.30
Thermal Regulation TA=25°C, 30ms Pulse 0.01 0.10 %/W
For LD1117/ A-1.5
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage VOUT V
IN=3.5V, IOUT=10mA, TJ=25°C 1.470 1.500 1.530 V
Output Voltage VOUT
VIN=3 to 8V
LD1117 : IOUT=0~800mA
LD1117A : IOUT=0~1000mA
1.470 1.500 1.530 V
Line Regulation ΔVOUT V
IN=3 to 8V, IOUT=0mA 1 6 mV
Load Regulation ΔVOUT
VIN=3V
LD1117 : IOUT=0~800mA
LD1117A : IOUT=0~1000mA
1 10 mV
Temperature stability ΔVOUT 0.5 %
Long Term Stability ΔVOUT 1000 hrs, TJ=125°C 0.3 %
Operating Input Voltage VIN I
OUT=100mA 15 V
Quiescent Current IQ V
IN≤10V 5 10 mA
Current Limit ILIMIT V
IN=6.5V, TJ=25°C LD1117 800 mA
LD1117A 1000
Output Noise Voltage eN B=10Hz to 10KHz, TJ=25°C 100 μV
Supply Voltage Rejection SVR IOUT=40mA, f=120Hz, TJ=25°C,
VIN=4.5V, VRIPPLE=1VPP 60 75 dB
Dropout Voltage VD
IOUT=100mA 1.00 1.10
V
IOUT=500mA 1.15 1.25
IOUT=800mA 1.20 1.30
IOUT=1A 1.20 1.30
Thermal Regulation TA=25°C, 30ms Pulse 0.01 0.10 %/W
LD1117/A LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD 6 of 15
www.unisonic.com.tw QW-R102-006.AG
ELECTRICAL CHARACTERISTICS(Cont.)
For LD1117/ A-1.8
PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNIT
Output Voltage VOUT V
IN=3.8V, IOUT=10mA, TJ=25°C 1.764 1.800 1.836 V
Output Voltage VOUT
VIN=3.3 to 8V
LD1117 : IOUT=0~800mA
LD1117A : IOUT=0~1000mA
1.764 1.800 1.836 V
Line Regulation ΔVOUT V
IN=3.3 to 8V, IOUT=0mA 1 6 mV
Load Regulation ΔVOUT
VIN=3.3V
LD1117 : IOUT=0~800mA
LD1117A : IOUT=0~1000mA
1 10 mV
Temperature stability ΔVOUT 0.5 %
Long Term Stability ΔVOUT 1000 hrs, TJ=125°C 0.3 %
Operating Input Voltage VIN I
OUT=100mA 15 V
Quiescent Current IQ V
IN≤10V 5 10 mA
Current Limit ILIMIT V
IN=6.8V, TJ=25°C LD1117 800 mA
LD1117A 1000
Output Noise Voltage eN B=10Hz to 10KHz, TJ=25°C 100 μV
Supply Voltage Rejection SVR IOUT=40mA, f=120Hz, TJ=25°C,
VIN=5.5V, VRIPPLE=1VPP 60 75 dB
Dropout Voltage VD
IOUT=100mA 1.00 1.10
V
IOUT=500mA 1.15 1.25
IOUT=800mA 1.20 1.30
IOUT=1A 1.20 1.30
Thermal Regulation TA=25°C, 30ms Pulse 0.01 0.10 %/W
For LD1117/ A-2.5
PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNIT
Output Voltage VOUT V
IN=4.5V, IOUT=10mA, TJ=25°C 2.450 2.500 2.550 V
Output Voltage VOUT
VIN=3.9 to 10V
LD1117 : IOUT=0~800mA
LD1117A : IOUT=0~1000mA
2.450 2.500 2.550 V
Line Regulation ΔVOUT V
IN=3.9 to 10V, IOUT=0mA 1 6 mV
Load Regulation ΔVOUT
VIN=3.9V
LD1117 : IOUT=0~800mA
LD1117A : IOUT=0~1000mA
1 10 mV
Temperature stability ΔVOUT 0.5 %
Long Term Stability ΔVOUT 1000 hrs, TJ=125°C 0.3 %
Operating Input Voltage VIN I
OUT=100mA 15 V
Quiescent Current IQ V
IN≤10V 5 10 mA
Current Limit ILIMIT V
IN=7.5V, TJ=25°C LD1117 800 mA
LD1117A 1000
Output Noise Voltage eN B=10Hz to 10KHz, TJ=25°C 100 μV
Supply Voltage Rejection SVR IOUT=40mA, f=120Hz, TJ=25°C,
VIN=5.5V, VRIPPLE =1VPP 60 75 dB
Dropout Voltage VD
IOUT=100mA 1.00 1.10
V
IOUT=500mA 1.15 1.25
IOUT=800mA 1.20 1.30
IOUT=1A 1.20 1.30
Thermal Regulation TA=25°C, 30ms Pulse 0.01 0.10 %/W
LD1117/A LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD 7 of 15
www.unisonic.com.tw QW-R102-006.AG
ELECTRICAL CHARACTERISTICS(Cont.)
For LD1117/ A-2.85
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage VOUT V
IN=4.85V, IOUT=10mA, TJ=25°C 2.793 2.850 2.907 V
Output Voltage VOUT
VIN=4.25 to 10V
LD1117 : IOUT=0~800mA
LD1117A : IOUT=0~1000mA
2.793 2.850 2.907 V
Line Regulation ΔVOUT V
IN=4.25 to 10V, IOUT=0mA 1 6 mV
Load Regulation ΔVOUT
VIN=4.25V
LD1117 : IOUT=0~800mA
LD1117A : IOUT=0~1000mA
1 10 mV
Temperature stability ΔVOUT 0.5 %
Long Term Stability ΔVOUT 1000 hrs, TJ=125°C 0.3 %
Operating Input Voltage VIN I
OUT=100mA 15 V
Quiescent Current IQ V
IN≤10V 5 10 mA
Current Limit ILIMIT V
IN=7.85V, TJ=25°C LD1117 800 mA
LD1117A 1000
Output Noise Voltage eN B=10Hz to 10KHz, TJ=25°C 100 μV
Supply Voltage Rejection SVR IOUT=40mA, f=120Hz, TJ=25°C,
VIN=5.85V, VRIPPLE=1VPP 60 75 dB
Dropout Voltage VD
IOUT=100mA 1.00 1.10
V
IOUT=500mA 1.15 1.25
IOUT=800mA 1.20 1.30
IOUT=1A 1.20 1.30
Thermal Regulation TA=25°C, 30ms Pulse 0.01 0.10 %/W
For LD1117/ A-3.0
PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNIT
Output Voltage VOUT V
IN=5V, IOUT=10mA, TJ=25°C 2.940 3.000 3.060 V
Output Voltage VOUT
VIN=4.5 to 10V
LD1117 : IOUT=0~800mA
LD1117A : IOUT=0~1000mA
2.940 3.000 3.060 V
Line Regulation ΔVOUT V
IN=4.5 to 12V, IOUT=0mA 1 6 mV
Load Regulation ΔVOUT
VIN=4.5V
LD1117 : IOUT=0~800mA
LD1117A : IOUT=0~1000mA
1 10 mV
Temperature stability ΔVOUT 0.5 %
Long Term Stability ΔVOUT 1000 hrs, TJ=125°C 0.3 %
Operating Input Voltage VIN I
OUT=100mA 15 V
Quiescent Current IQ V
IN≤15V 5 10 mA
Current Limit ILIMIT V
IN=8V, TJ=25°C LD1117 800 mA
LD1117A 1000
Output Noise Voltage eN B=10Hz to 10KHz, TJ=25°C 100 μV
Supply Voltage Rejection SVR IOUT=40mA, f=120Hz, TJ=25°C,
VIN=6V, VRIPPLE=1VPP 60 75 dB
Dropout Voltage VD
IOUT=100mA 1.00 1.10
V
IOUT=500mA 1.15 1.25
IOUT=800mA 1.20 1.30
IOUT=1A 1.20 1.30
Thermal Regulation TA=25°C, 30ms Pulse 0.01 0.10 %/W
LD1117/A LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD 8 of 15
www.unisonic.com.tw QW-R102-006.AG
ELECTRICAL CHARACTERISTICS(Cont.)
For LD1117/ A-3.3
PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNIT
Output Voltage VOUT V
IN=5.3V, IOUT=10mA, TJ=25°C 3.234 3.300 3.366 V
Output Voltage VOUT
VIN=4.75 to 10V
LD1117 : IOUT=0~800mA
LD1117A : IOUT=0~1000mA
3.234 3.300 3.366 V
Line Regulation ΔVOUT V
IN=4.75 to 15V, IOUT=0mA 1 6 mV
Load Regulation ΔVOUT
VIN=4.75V
LD1117 : IOUT=0~800mA
LD1117A : IOUT=0~1000mA
1 10 mV
Temperature stability ΔVOUT 0.5 %
Long Term Stability ΔVOUT 1000 hrs, TJ=125°C 0.3 %
Operating Input Voltage VIN I
OUT=100mA 15 V
Quiescent Current IQ V
IN≤15V 5 10 mA
Current Limit ILIMIT V
IN=8.3V, TJ=25°C LD1117 800 mA
LD1117A 1000
Output Noise Voltage eN B=10Hz to 10KHz, TJ=25°C 100 μV
Supply Voltage Rejection SVR IOUT=40mA, f=120Hz, TJ=25°C,
VIN=6.3V, VRIPPLE=1VPP 60 75 dB
Dropout Voltage VD
IOUT=100mA 1.00 1.10
V
IOUT=500mA 1.15 1.25
IOUT=800mA 1.20 1.30
IOUT=1A 1.20 1.30
Thermal Regulation TA=25°C, 30ms Pulse 0.01 0.10 %/W
For LD1117/ A-3.6
PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNIT
Output Voltage VOUT V
IN=5.6V, IOUT=10mA, TJ=25°C 3.528 3.600 3.672 V
Output Voltage VOUT
VIN=5 to 10V
LD1117 : IOUT=0~800mA
LD1117A : IOUT=0~1000mA
3.528 3.600 3.672 V
Line Regulation ΔVOUT V
IN=5 to 15V, IOUT=0mA 1 6 mV
Load Regulation ΔVOUT
VIN=5V
LD1117 : IOUT=0~800mA
LD1117A : IOUT=0~1000mA
1 10 mV
Temperature stability ΔVOUT 0.5 %
Long Term Stability ΔVOUT 1000 hrs, TJ=125°C 0.3 %
Operating Input Voltage VIN I
OUT=100mA 15 V
Quiescent Current IQ V
IN≤15V 5 10 mA
Current Limit ILIMIT V
IN=8.6V, TJ=25°C LD1117 800 mA
LD1117A 1000
Output Noise Voltage eN B=10Hz to 10KHz, TJ=25°C 100 μV
Supply Voltage Rejection SVR IOUT=40mA, f=120Hz, TJ=25°C,
VIN=6.6V, VRIPPLE=1VPP 60 75 dB
Dropout Voltage VD
IOUT=100mA 1.00 1.10
V
IOUT=500mA 1.15 1.25
IOUT=800mA 1.20 1.30
IOUT=1A 1.20 1.30
Thermal Regulation TA=25°C, 30ms Pulse 0.01 0.10 %/W
LD1117/A LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD 9 of 15
www.unisonic.com.tw QW-R102-006.AG
ELECTRICAL CHARACTERISTICS(Cont.)
For LD1117/ A-5.0
PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNIT
Output Voltage VOUT V
IN=7V, IOUT=10mA, TJ=25°C 4.900 5.000 5.100 V
Output Voltage VOUT
VIN=6.5 to 15V
LD1117 : IOUT=0~800mA
LD1117A : IOUT=0~1.0A
4.900 5.000 5.100 V
Line Regulation ΔVOUT V
IN=6.5 to 15V, IOUT=0mA 1 10 mV
Load Regulation ΔVOUT
VIN=6.5V
LD1117 : IOUT=0~800mA
LD1117A : IOUT=0~1000mA
1 15 mV
Temperature stability ΔVOUT 0.5 %
Long Term Stability ΔVOUT 1000 hrs, TJ=125°C 0.3 %
Operating Input Voltage VIN I
OUT=100mA 15 V
Quiescent Current IQ V
IN≤15V 5 10 mA
Current Limit ILIMIT V
IN=10V, TJ=25°C LD1117 800 mA
LD1117A 1000
Output Noise Voltage eN B=10Hz to 10KHz, TJ=25°C 100 μV
Supply Voltage Rejection SVR IOUT=40mA, f=120Hz, TJ=25°C,
VIN=8V, VRIPPLE=1VPP 60 75 dB
Dropout Voltage VD
IOUT=100mA 1.00 1.10
V
IOUT=500mA 1.15 1.25
IOUT=800mA 1.20 1.30
IOUT=1A 1.20 1.30
Thermal Regulation TA=25°C, 30ms Pulse 0.01 0.10 %/W
For LD1117/A-ADJ
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Reference Voltage VREF V
IN-VOUT=2V, IOUT=10mA, TJ=25°C 1.225 1.25 1.275 V
Reference Voltage VREF
VIN-VOUT=1.4 to 10V
LD1117 : IOUT=10~800mA
LD1117A : IOUT=10~1000mA
1.225 1.25 1.275 V
Line Regulation ΔVOUT V
IN-VOUT=1.5 to 13.75V, IOUT=10mA 0.035 0.2 %
Load Regulation ΔVOUT
VIN-VOUT=3V
LD1117 : IOUT=10~800mA
LD1117A : IOUT=10~1000mA
0.1 0.4 %
Temperature stability ΔVOUT 0.50 %
Long Term Stability ΔVOUT 1000 hrs, TJ=125°C 0.3 %
Operating Input Voltage VIN 15 V
Adjustment Pin Current IADJ V
IN≤15V 60 120 μA
Adjustment Pin Current Change ΔIADJ
VIN-VOUT=1.4 to 10V,
LD1117 : IOUT=10 ~ 800mA
LD1117A : IOUT=10 ~ 1000mA
1 5 μA
Minimum Load Current IO(MIN) V
IN=15V 2 5 mA
Current Limit ILIMIT V
IN-VOUT=5V, TJ=25°C LD1117 800 mA
LD1117A 1000
Output Noise (%VO) eN B=10Hz to 10KHz, TJ=25°C 0.003 %
Supply Voltage Rejection SVR IOUT=40mA, f=120Hz, TJ=25°C,
VIN-VOUT=3V, VRIPPLE=1VPP 60 75 dB
Dropout Voltage VD
IOUT=100mA 1.00 1.10
V
IOUT=500mA 1.15 1.25
IOUT=800mA 1.20 1.30
IOUT=1A 1.20 1.30
Thermal Regulation TA=25°C, 30ms Pulse 0.01 0.10 %/W
LD1117/A LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD 10 of 15
www.unisonic.com.tw QW-R102-006.AG
TYPICAL APPLICATIONS
IN OUT
UTC LD1117/A-XX
++
10µF 100µF
VIN
GND/ADJ
VOUT
Fig.1 Tyncal Application Circuit
IN OUT
UTC LD1117/A-XX
10µF 10µF
VIN
GND/ADJ
VOUT
Fig.2 Tyncal Application Circuit (FOR MLCC)
Fig.3 Negative Supply
LD1117/A LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD 11 of 15
www.unisonic.com.tw QW-R102-006.AG
TYPICAL APPLICATIONS(Cont.)
IN
UTC LD1117/A-
2.85V
+22µF
10µF
+
110
110
110
110
18-27
Lines
4.75V
to
5.25V
OUT
GND/ADJ
Fig.4 Active Terminator for SCSI-2 BUS
Fig.5 Circuit for Increasing Output Voltage
LD1117/A LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD 12 of 15
www.unisonic.com.tw QW-R102-006.AG
APPLICATION NOTE of LD1117/A ADJUSTABLE
The LD1117/A adjustable has a reference voltage of between the OUT and ADJ/GND 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 KΩ, 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/GND 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. 8)
Fig.6 Adjustable Output Voltage Application Circuit
Fig.7 Adjustable Output Voltage Application Circuit (FOR MLCC)
Fig.8 Adjustable Output Voltage Application with improved Ripple Rejection.
LD1117/A LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD 13 of 15
www.unisonic.com.tw QW-R102-006.AG
TYPICAL CHARACTERISTICS
Output Voltage
Deviation(mV)
Load
Current(mA)
Output Voltage
Deviation(mV)
Input Voltage
Change(V)
Ripple Rejection (dB)
Dropout Voltage, VD (V)
LD1117/A LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD 14 of 15
www.unisonic.com.tw QW-R102-006.AG
TYPICAL CHARACTERISTICS(Cont.)
Output Voltage Deveiation (%)
Temperature (°C)
Load Regulation
Short-Circuit Current
Short Circuit Current (A)
Input/Output Differential (V)
05 10
0
1.6
2.4
0.4
1.2
2.8
0.8
2.0
TJ=25°C
TJ=125°C
-0.12
-0.04
0.08
0.16
0
0.12
-0.08
-50 0 75 125
25-25 50 100
ΔILOAD=1A
0.04
Reference Voltge vs. Temperature Output Voltage vs. Temperautre
-75
Junction Temperature(°C)
Reference Voltage, VREF (V)
Junction Temperature, TJ(°C)
-75
Output Voltage, VOUT(V)
3.20
Maximum Power Dissipation
25 65 105
4
6
8
10
Case Temperature, TC(°C)
Power (W)
TO-263 & TO-252
SOT-223
2
1.255
1.205
1.210
1.215
1.220
1.225
1.230
1.235
1.240
1.245
1.250
-25 0 25 50 75 100 125 150 175
3.25
3.30
3.35
3.40
3.45
3.50
3.55
3.60
3.65
3.70
-50 -25 0 25 50 75 100 125 150 175
VOUT=3.3V
VOUT Set With 1% Resistors
45 85 125
0
Output Voltage vs. Temperautre
Junction Temperature, TJ(°C)
-75
Output Voltage, VOUT(V)
1.55
1.60
1.65
1.70
1.75
1.80
1.85
1.90
1.95
2.00
2.05
-50 -25 0 25 50 75 100 125 150 175
VOUT=1.8V
VOUT Set With 1% Resistors
-50
LD1117/A LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD 15 of 15
www.unisonic.com.tw QW-R102-006.AG
TYPICAL CHARACTERISTICS(Cont.)
Junction Temperature, TJ(°C)
-75
2.20
2.25
2.30
2.35
2.40
2.45
2.50
2.55
2.60
2.65
2.70
-50 -25 0 25 50 75 100 125 150 175
VOUT=2.5V
VOUT Set With 1% Resistors
024 6810
0
2
4
6
8
10
CO(µF)
Safe Operating Area vs. Capacitor ESR
IO=10mA~1.0A
Output Voltage vs. Temperautre
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.
