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
*Pb-free plating product number:
LD1117L-xx / LD1117AL-xx
ORDERING INFORMATION
Order Number
Normal
Lead Free Plating
LD1117①-xx-AA3-②-③
LD1117①L-xx-AA3-②-③
LD1117①-xx-AB3-②-③
LD1117①L-xx-AB3-②-③
LD1117①-xx-TA3-②-③
LD1117①L-xx-TA3-②-③
LD1117①-xx-TN3-②-③
LD1117①L-xx-TN3-②-③
LD1117①-xx-TQ2-②-③
LD1117①L-xx-TQ2-②-③
LD1117①-xx-TQ3-②-③
LD1117①L-xx-TQ3-②-③
LD1117①-xx-S08-②-③
LD1117①L-xx-S08-②-③
Note: Pin Assignment: I:V
IN
O:V
OUT
G:GND
Package
SOT-223
SOT-89
TO-220
TO-252
TO-263
TO-263-3
SOP-8
②
Pin Assignment
A: GOI
B: OGI
C: GIO
D: IGO
GOOIxOOx
③
Packing
R: Tape Reel
T: Tube
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Copyright © 2005 Unisonic Technologies Co., Ltd
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QW-R102-006,Q
LD1117/A
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
LINEAR INTEGRATED CIRCUIT
MARKING
SOT-89
SOT-223
12
15
18
25
2J
30
33
36
50
AD
:1.2V
:1.5V
:1.8V
:2.5V
:2.85V
:3.0V
:3.3V
:3.6V
:5.0V
:ADJ
TO-220
TO-252
TO-263
TO-263-3
Note: Current code:
Blank: 0.8A
A: 1A
PIN CONFIGURATION
GND
1
8
NC
V
OUT
2
7
V
OUT
V
OUT
3
6
V
OUT
V
IN
4
5
NC
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QW-R102-006,Q
LD1117/A
BLOCK DIAGRAM
LINEAR INTEGRATED CIRCUIT
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QW-R102-006,Q
LD1117/A
ABSOLUTE MAXIMUM RATINGS
(Ta=25℃)
PARAMETER
LINEAR INTEGRATED CIRCUIT
SYMBOL
RATINGS
DC Input Voltage
V
IN
18
Power Dissipation
P
D
Internally limited
Junction Temperature
T
J
+150
Storage temperature
T
STG
-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.
UNIT
V
°C
°C
RECOMMENDED OPERATING RATINGS
PARAMETER
Input Voltage
Operating Junction Temperature Range
SYMBOL
V
IN
T
J
RATINGS
15
0 ~ +125
UNIT
V
°C
ELECTRICAL CHARACTERISTICS
(Ta=25
℃
, refer to the test circuits, T
J
=0 to 125°C, Co=10μF unless otherwise specified)
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
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
=0 ~ 800mA
LD1117A : I
OUT
=0 ~ 1.0A
ΔV
OUT
V
IN
=2.7 to 8V, I
OUT
=0mA
V
IN
=2.7V
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
=6.2V, 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
=1000 mA
Ta=25°C, 30ms Pulse
MIN.
1.188
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
1.10
1.25
1.30
1.30
0.10
5
15
10
MAX.
1.212
1.224
6
10
UNIT
V
V
mV
mV
%
%
V
mA
mA
mA
μV
dB
V
V
V
V
%/W
Dropout Voltage
Thermal Regulation
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4 of 12
QW-R102-006,Q
LD1117/A
ELECTRICAL CHARACTERISTICS(Cont.)
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
LINEAR INTEGRATED CIRCUIT
Dropout Voltage
Thermal Regulation
For LD1117/A-1.8
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
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 ~ 1.0A
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
=1000 mA
Ta=25°C, 30ms Pulse
MIN.
1.485
1.470
TYP.
1.500
1.500
1
1
0.5
0.3
5
MAX.
1.515
1.530
6
10
UNIT
V
V
mV
mV
%
%
V
mA
mA
15
10
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
μV
dB
V
V
V
V
%/W
Dropout Voltage
Thermal Regulation
SYMBOL
TEST CONDITIONS
V
OUT
V
IN
=3.8V, I
OUT
=10mA, T
J
=25°C
V
IN
=3.3 to 8V
V
OUT
LD1117 : I
OUT
=0 ~ 800mA
LD1117A : I
OUT
=0 ~ 1000mA
ΔV
OUT
V
IN
=3.3 to 8V, I
OUT
=0mA
V
IN
=3.3V
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
≤8V
LD1117
I
LIMIT
V
IN
=6.8V, 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
=5.5V, Vripple=1Vpp
I
OUT
=100mA
I
OUT
=500mA
V
D
I
OUT
=800mA
I
OUT
=1000 mA
Ta=25°C, 30ms Pulse
MIN.
1.780
1.760
TYP.
1.800
1.800
1
1
0.5
0.3
5
MAX.
1.820
1.840
6
10
UNIT
V
V
mV
mV
%
%
V
mA
mA
10
10
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
μV
dB
V
V
V
V
%/W
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 12
QW-R102-006,Q
嵌入式系统
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