UTC LD1117/A LINEAR INTEGRATED CIRCUIT
LOW DROP FIXED AND
ADJUSTABLE POSITIVE VOLTAGE
REGULATORS
DESCRIPTION
The UTC LD1117/A is a LOW DROP Voltage Regulator
able to provide up to 0.8/1.0A of Output Current, available
even in adjustable version (Vref=1.25V). Concerning fixed
versions, are offered the following Output Voltages: 1.8V,
2.5V, 2.85V, 3.0V, 3.3V and 5.0V. The 2.85V type is ideal for
SCSI-2 lines active termination. The device is supplied in:
SOT-223, TO-252, TO-263, TO-263-3, SOP-8 and TO-220.
The SOT-223, TO-263, TO-263-3 and TO-252 surface mount
packages optimize the thermal characteristics even offering a
relevant space saving effect. High efficiency is assured by
NPN pass transistor. In fact in the case, unlike than PNP one,
the Quiescent Current flows mostly into the load. Only a very
common 10µF minimum capacitor is needed for stability. On
chip trimming allows the regulator to reach a very tight output
voltage tolerance, within
±1%
at 25°C. The ADJUSTABLE
LD1117/A is pin to pin compatible with the other standard
Adjustable voltage regulators maintaining the better
performances in terms of Drop and Tolerance.
3
2 1
SOT-223
SOP-8
1
1
TO-220
TO-252
1
1
TO-263
SOP-8
1: GND;
4: Vin;
TO-263-3
2,3,6,7: Vout;
5,8: NC
FEATURES
*Low dropout voltage (1V Typ.)
*2.85V device performances are suitable for SCSI-2 active
termination
*Output current up to 0.8/1.0A
*Fixed output voltage of: 1.8V,2.5V, 2,85V, 3.0V, 3.3V, 5.0V
*Adjustable version availability (Vref=1.25V)
*Internal current and thermal limit
*Available in
±1%(at
25°C) and 2% in all temperature range
*Supply voltage rejection: 75dB (TYP)
*Temperature range: 0°C to 125°C
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R102-006,H
UTC LD1117/A LINEAR INTEGRATED CIRCUIT
MARKING INFORMATION
PACKAGE
VOLTAGE PIN CODE PIN 1
CODE
18:1.8V
25:2.5V
SOT-223
28:2.85V
30:3.0V
33:3.3V
50:5.0V
AD:ADJ
TO-220
TO-252
TO-263
TO-263-3
A
B
C
D
A
B
C
D
GND
OUT
GND
IN
GND
OUT
GND
IN
OUT
GND
IN
GND
OUT
GND
IN
GND
IN
IN
OUT
OUT
IN
IN
OUT
OUT
VOLTAGE
CODE
CURRENT
CODE
VOLTAGE
CODE
PIN 2
PIN 3
MARKING
LD1117
PIN CODE
DATE
CODE
1
2
3
UTC
LD1117
CURRENT
CODE
PIN CODE
DATE
CODE
1
2
3
Note: The current code “A” means output current up to 1.0A, while without “A” means output current up to 0.8A.
UTC
UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R102-006,H
UTC LD1117/A LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
VALUE
UNIT
DC Input Voltage
V
IN
15
V
Power Dissipation
Ptot
12
W
Storage temperature
Tstg
-65 ~ +150
°C
Operating Junction
Top
0 ~ +125
°C
Temperature
Note: Absolute Maximum Ratings are those value beyond which damage to the device may occur. Functional
operation under there condition is not implied. Over the above suggested Max Power Dissipation a Short Circuit
could definitively damage the device.
THERMAL DATA
PARAMETER
Thermal Resistance Junction-case
SOT-223
SOP-8
TO-252
TO-220
TO-263
Thermal Resistance Junction-ambient
TO-220
SYMBOL
Rth-case
VALUE
15
20
8
3
3
UNIT
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
Rthj-amb
50
UTC
UNISONIC TECHNOLOGIES CO., LTD.
3
QW-R102-006,H
UTC LD1117/A LINEAR INTEGRATED CIRCUIT
APPLICATION CIRCUIT
LD
1117/A
UTC LD1117/A-1.8 ELECTRICAL CHARACTERISTICS
(refer to the test circuits, Tj=0 to 125°C, Co=10µF unless otherwise specified)
PARAMETER
Output Voltage
Output Voltage
Line Regulation
Load Regulation
Temperature stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
Output Noise Voltage
Supply Voltage
Rejection
Dropout Voltage
SYMBOL
Vo
Vo
∆Vo
∆Vo
∆Vo
∆Vo
Vin
Id
Io
eN
SVR
Vd
TEST CONDITIONS
Vin=3.8V, Io=10mA, Tj=25°C
Io=0 to 800/1000mA, Vin=3.3 to 8V
Vin=3.3 to 8V, Io=0mA
Vin=3.3V, Io=0 to 800/1000mA
1000 hrs, Tj=125°C
Io=100mA
Vin≤8V
Vin=6.8V, Tj=25°C
B=10Hz to 10KHz, Tj=25°C
Io=40mA, f=120Hz, Tj=25°C, Vin=5.5V,
Vripple=1Vpp
Io=100mA
Io=500mA
Io=800mA
Io=1000mA
Ta=25°C, 30ms Pulse
MIN.
1.780
1.760
TYP.
1.800
1
1
0.5
0.3
5
950
100
75
1.00
1.05
1.10
1.15
0.01
MAX.
1.820
1.840
6
10
UNIT
V
V
mV
mV
%
%
V
mA
mA
µV
dB
V
V
V
V
%/W
800
60
10
10
1200
Thermal Regulation
1.10
1.15
1.20
1.25
0.10
UTC LD1117/A-2.5 ELECTRICAL CHARACTERISTICS
(refer to the test circuits, Tj=0 to 125°C, Co=10µF unless otherwise specified)
PARAMETER
Output Voltage
Output Voltage
Line Regulation
Load Regulation
Temperature stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
SYMBOL
Vo
Vo
∆Vo
∆Vo
∆Vo
∆Vo
Vin
Id
Io
TEST CONDITIONS
Vin=4.5V, Io=10mA, Tj=25°C
Io=0 to 800/1000mA,
Vin=3.9 to 10V
Vin=3.9 to 10V, Io=0mA
Vin=3.9V, Io=0 to 800/1000mA
1000 hrs, Tj=125°C
Io=100mA
Vin≤10V
Vin=7.5V, Tj=25°C
±1%
±2%
±2%
±4%
MIN.
2.475
2.450
2.450
2.400
TYP.
2.500
2.500
MAX.
2.525
2.550
2.550
2.600
6
10
UNIT
V
V
V
V
mV
mV
%
%
V
mA
mA
1
1
0.5
0.3
5
950
800
15
10
1200
UTC
UNISONIC TECHNOLOGIES CO., LTD.
4
QW-R102-006,H
UTC LD1117/A LINEAR INTEGRATED CIRCUIT
PARAMETER
Output Noise Voltage
Supply Voltage
Rejection
Dropout Voltage
SYMBOL
eN
SVR
Vd
TEST CONDITIONS
B=10Hz to 10KHz, Tj=25°C
Io=40mA, f=120Hz, Tj=25°C, Vin=5.5V,
Vripple=1Vpp
Io=100mA
Io=500mA
Io=800mA
Io=1000mA
Ta=25°C, 30ms Pulse
MIN.
60
TYP.
100
75
1.00
1.05
1.10
1.15
0.01
MAX.
UNIT
µV
dB
Thermal Regulation
1.10
1.15
1.20
1.25
0.10
V
V
V
V
%/W
UTC LD1117/A-2.85 ELECTRICAL CHARACTERISTICS
(refer to the test circuits, Tj=0 to 125°C, Co=10µF unless otherwise specified)
PARAMETER
Output Voltage
Output Voltage
Line Regulation
Load Regulation
Temperature stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
Output Noise Voltage
Supply Voltage
Rejection
Dropout Voltage
SYMBOL
Vo
Vo
∆Vo
∆Vo
∆Vo
∆Vo
Vin
Id
Io
eN
SVR
Vd
TEST CONDITIONS
Vin=4.85V, Io=10mA, Tj=25°C
Io=0 to 800/1000mA,Vin=4.25 to 10V
Vin=4.25 to 10V, Io=0mA
Vin=4.25V, Io=0 to 800/1000mA
1000 hrs, Tj=125°C
Io=100mA
Vin≤10V
Vin=7.85V, Tj=25°C
B=10Hz to 10KHz, Tj=25°C
Io=40mA, f=120Hz, Tj=25°C, Vin=5.85V,
Vripple=1Vpp
Io=100mA
Io=500mA
Io=800mA
Io=1000mA
Ta=25°C, 30ms Pulse
MIN.
2.82
2.79
TYP.
2.85
1
1
0.5
0.3
5
950
100
75
1.00
1.05
1.10
1.15
0.01
MAX.
2.88
2.91
6
10
UNIT
V
V
mV
mV
%
%
V
mA
mA
µV
DB
V
V
V
V
%/W
800
60
15
10
1200
Thermal Regulation
1.10
1.15
1.20
1.25
0.10
UTC LD1117/A-3.0 ELECTRICAL CHARACTERISTICS
(refer to the test circuits, Tj=0 to 125°C, Co=10µF unless otherwise specified)
PARAMETER
Output Voltage
Output Voltage
Line Regulation
Load Regulation
Temperature stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
Output Noise Voltage
Supply Voltage
Rejection
SYMBOL
Vo
Vo
∆Vo
∆Vo
∆Vo
∆Vo
Vin
Id
Io
eN
SVR
TEST CONDITIONS
Vin=5V, Io=10mA, Tj=25°C
Io=0 to 800/1000mA,
Vin=4.5 to 10V
Vin=4.5 to 12V, Io=0mA
Vin=4.5V, Io=0 to 800/1000mA
1000 hrs, Tj=125°C
Io=100mA
Vin≤12V
Vin=8V, Tj=25°C
B=10Hz to 10KHz, Tj=25°C
Io=40mA, f=120Hz, Tj=25°C, Vin=6V,
Vripple=1Vpp
±1%
±2%
±2%
±4%
MIN.
2.97
2.94
2.94
2.88
TYP.
3.00
3.00
MAX.
3.03
3.06
3.06
3.12
6
10
UNIT
V
V
V
V
mV
mV
%
%
V
mA
mA
µV
dB
1
1
0.5
0.3
5
950
100
75
800
60
15
10
1200
UTC
UNISONIC TECHNOLOGIES CO., LTD.
5
QW-R102-006,H
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