UNISONIC TECHNOLOGIES CO., LTD
LD1117/A
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 (V
REF
=1.25V) and various
fixed versions.
LINEAR INTEGRATED CIRCUIT
FEATURES
* Low dropout voltage
* Suitable for SCSI-2 active termination if V
OUT
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
Lead-free:
LD1117L-xx / LD1117AL-xx
Halogen-free: LD1117G-xx / LD1117AG-xx
ORDERING INFORMATION
Ordering Number
Normal
Lead Free
Halogen Free
LD1117 -xx-AA3- - LD1117 L-xx-AA3- - LD1117 G-xx-AA3-
LD1117 -xx-AB3- - LD1117 L-xx-AB3- - LD1117 G-xx-AB3-
LD1117 -xx-TA3- - LD1117 L-xx-TA3- - LD1117 G-xx-TA3-
LD1117 -xx-TF3- - LD1117 L-xx-TF3- - LD1117 G-xx-TF3-
LD1117 -xx-TN3- - LD1117 L-xx-TN3- - LD1117 G-xx-TN3-
LD1117 -xx-TQ2- - LD1117 L-xx-TQ2- - LD1117 G-xx-TQ2-
LD1117 -xx-TQ3- - LD1117 L-xx-TQ3- - LD1117 G-xx-TQ3-
LD1117 -xx-S08- - LD1117 L-xx-S08- - LD1117 G-xx-S08-
Note: Pin Assignment: I:V
IN
O:V
OUT
G:GND/ADJ
Package
-
-
-
-
-
-
-
-
SOT-223
SOT-89
TO-220
TO-220F
TO-252
TO-263
TO-263-3
SOP-8
Pin Assignment
A: GOI
B: OGI
C: GIO
D: IGO
GOOIxOOx
Packing
R: Tape Reel
T: Tube
www.unisonic.com.tw
Copyright © 2011 Unisonic Technologies Co., Ltd
1 of 15
QW-R102-006.AC
LD1117/A
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
LINEAR INTEGRATED CIRCUIT
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
GND/
ADJ
V
OUT
V
OUT
V
IN
1
2
3
4
8
7
6
5
NC
V
OUT
V
OUT
NC
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 15
QW-R102-006.AC
LD1117/A
BLOCK DIAGRAM
LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
3 of 15
QW-R102-006.AC
LD1117/A
ABSOLUTE MAXIMUM RATINGS
(T
a
=25°C)
LINEAR INTEGRATED CIRCUIT
PARAMETER
SYMBOL
RATINGS
UNIT
DC Input Voltage
V
IN
18
V
Power Dissipation
P
D
Internally limited
Junction Temperature
T
J
+150
°C
Storage temperature
T
STG
-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
Input Voltage
Operating Junction Temperature Range
SYMBOL
V
IN
T
J
RATINGS
15
0 ~ +125
UNIT
V
°C
THERMAL DATA
PARAMETER
SOT-223
SOT-89
SOP-8
TO-252
TO-220
TO-263
SOT-223
SOT-89
SOP-8
TO-252
TO-220
TO-263
SYMBOL
RATINGS
165
180
150
112
54
64
15
50
20
12
4
4
UNIT
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
Junction to Ambient
θ
JA
Junction to Case
θ
JC
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 15
QW-R102-006.AC
LD1117/A
ELECTRICAL CHARACTERISTICS
For LD1117/A-1.2
PARAMETER
Output Voltage
Output Voltage
Line Regulation
Load Regulation
Temperature stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Current Limit
Minimum Load Current
Output Noise Voltage
Supply Voltage Rejection
LINEAR INTEGRATED CIRCUIT
(Ta=25°C, refer to the test circuits, T
J
=0 to 125°C, Co=10μF unless otherwise specified)
SYMBOL
TEST CONDITIONS
V
OUT
V
IN
=3.2V, I
OUT
=10mA, T
J
=25°C
V
IN
=2.7 to 8V
V
OUT
LD1117 : I
OUT
=10~800mA
LD1117A : I
OUT
=10~1000mA
ΔV
OUT
V
IN
=2.7 to 8V, I
OUT
=10mA
V
IN
=2.7V
ΔV
OUT
LD1117 : I
OUT
=10~800mA
LD1117A : I
OUT
=10~1000mA
ΔV
OUT
ΔV
OUT
1000 hrs, T
J
=125°C
V
IN
I
OUT
=100mA
I
Q
V
IN
≤10V
LD1117
I
LIMIT
V
IN
=6.2V, T
J
=25°C
LD1117A
I
O(MIN)
V
IN
=15V
eN
B=10Hz to 10KHz, T
J
=25°C
I
OUT
=40mA, f=120Hz, T
J
=25°C,
SVR
V
IN
=4.2V, V
RIPPLE
=1Vpp
I
OUT
=100mA
I
OUT
=500mA
V
D
I
OUT
=800mA
I
OUT
=1A
T
a
=25°C, 30ms Pulse
SYMBOL
TEST CONDITIONS
V
OUT
V
IN
=3.5V, I
OUT
=10mA, T
J
=25°C
V
IN
=3 to 8V
V
OUT
LD1117 : I
OUT
=0~800mA
LD1117A : I
OUT
=0~1000mA
ΔV
OUT
V
IN
=3 to 8V, I
OUT
=0mA
V
IN
=3V
ΔV
OUT
LD1117 : I
OUT
=0~800mA
LD1117A : I
OUT
=0~1000mA
ΔV
OUT
ΔV
OUT
1000 hrs, T
J
=125°C
V
IN
I
OUT
=100mA
I
Q
V
IN
≤10V
LD1117
I
LIMIT
V
IN
=6.5V, T
J
=25°C
LD1117A
eN
B=10Hz to 10KHz, T
J
=25°C
I
OUT
=40mA, f=120Hz, T
J
=25°C,
SVR
V
IN
=4.5V, V
RIPPLE
=1Vpp
I
OUT
=100mA
I
OUT
=500mA
V
D
I
OUT
=800mA
I
OUT
=1A
T
a
=25°C, 30ms Pulse
MIN.
1.176
1.176
TYP.
1.200
1.200
1
1
0.5
0.3
5
800
1000
2
100
60
75
1.00
1.15
1.20
1.20
0.01
MIN
1.470
1.470
TYP
1.500
1.500
1
1
0.5
0.3
5
800
1000
100
60
75
1.00
1.15
1.20
1.20
0.01
1.10
1.25
1.30
1.30
0.10
15
10
1.10
1.25
1.30
1.30
0.10
MAX
1.530
1.530
6
10
5
15
10
MAX.
1.224
1.224
6
10
UNIT
V
V
mV
mV
%
%
V
mA
mA
mA
μV
dB
Dropout Voltage
Thermal Regulation
For LD1117/A-1.5
PARAMETER
Output Voltage
Output Voltage
Line Regulation
Load Regulation
Temperature stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Current Limit
Output Noise Voltage
Supply Voltage Rejection
V
%/W
UNIT
V
V
mV
mV
%
%
V
mA
mA
μV
dB
Dropout Voltage
Thermal Regulation
V
%/W
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 15
QW-R102-006.AC
