DATA SHEET
VOLTAGE REGULATOR
PS1117-XX
1A Low Dropout Positive Voltage Regulator
Contents
General Description
Features
Pin Configuration
Schematic Diagram
Ordering information
Absolute Maximum Ratings
Electrical Characteristics
Typical Application Circuit
Application Information
Physical Dimension
Page
2
2
2
3
3
4
5
6
6
8
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1
DATA SHEET
GENERAL DESCRIPTION
VOLTAGE REGULATOR
The PS1117 series is a positive low dropout regulator designed to provide up to 1A of output current.
The device is available in an adjustable version and fixed output voltages of 1.5V, 1.8V, 2.5V, 3.3V
and 5.0V. All internal circuitry is designed to operate down to 1.3V input to output differential. On
chip trimming adjusts the reference/output voltage to within ±1%.
FEATURES
n
n
n
n
n
n
n
Adjustable or Fixed Output
-
Available Fixed Output: 1.5V, 1.8V, 2.5V, 3.3V and 5.0V
Output Current of 1A
Low Dropout, 1.5V
(max)
at 1A Output Current
0.04% Line Regulation
0.2% Load Regulation
Fast Transient Response
Available in SOT-89, SOT-223, TO-252, TO-263-2 and TO-220 Packages
PIN CONFIGURATION
FUNCTION
DESCRIPTION
Adjustable pad for output ADJ version.
Ground pad for fixed output version
Voltage output pin
Supply power input pin
PIN
1
2
3
SYMBOL
ADJ/GND
OUT
IN
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2
DATA SHEET
SCHEMATIC DIAGRAM
VOLTAGE REGULATOR
ORDERING INFORMATION
Part Number
PS1117△-□□□-T89R
PS1117△-□□□-T43R
PS1117△-□□□-TC2T
PS1117△-□□□-TC2R
PS1117△-□□□-TA2T
PS1117△-□□□-TA2R
PS1117△-□□□-TB3T
Package
SOT-89
SOT-223
TO-252
TO-252
TO-263-2
TO-263-2
TO-220
Shipping
Tape Reel
Tape Reel
Tube
Tape Reel
Tube
Tape Reel
Tube
Notes:
1.
△:
none is for Lead Free package;
“G” is for Halogen Free package.
2.
□□□:
Output voltage
1.5
à
1.5V
1.8
à
1.8V
2.5
à
2.5V
3.3
à
3.3V
5.0
à
5.0V
ADJ
à
Adjustable version
Other output voltage versions are also available on V
OUT
= 1.5V to 5.0V.
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DATA SHEET
Marking Information:
VOLTAGE REGULATOR
1117-□□
LS YWW
Marking Code: 1117
□□:
Output Voltage
15
à
1.5V
18
à
1.8V
25
à
2.5V
33
à
3.3V
50
à
5.0V
AD
à
Adjustable version
Date Code: Y: Year;
WW: Week;
ABSOLUTE MAXIMUM RATINGS
T
A
= 25°C, unless otherwise specified.
(Note 3)
PARAMETER
Sustained Input Voltage
SOT-89
SOT-223
Thermal Resistance Junction-Air
TO-252
TO-263-2
TO-220
SOT-89
SOT-223
Power Dissipation
(Note 4)
TO-252
TO-263-2
TO-220
Operating Junction Temperature Range
Junction Temperature Range
Storage Temperature Range
Lead Temperature (Soldering 10 sec)
SYMBOL
V
SUS
RATING
15
180
155
UNIT
V
R
θ
JA
90
70
60
550
900
°C /W
P
D
1200
1750
2000
mW
T
opr
T
j
T
stg
T
LEAD
-40 ~ +125
-55 ~ +150
-65 ~ +150
300
°C
°C
°C
°C
Notes:
3. Absolute Maximum Ratings are those values beyond which the device could be permanently damaged. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability.
4. Maximum power dissipation is a function of T
J(max)
, R
θ
JA
and T
A
. The maximum allowable power dissipation at any
allowable ambient temperature is P
D
= (T
J(max)
−
T
A
)/ R
θ
JA
. Operating at the absolute maximum T
J
of 125°C can affect
reliability. Due to variations in individual device electrical characteristics and thermal resistance, the built-in
thermal-overload protection may be activated at power levels slightly above or below the rated dissipation. R
θ
JA
will
depend upon the printed circuit layout.
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DATA SHEET
ELECTRICAL CHARACTERISTICS
VOLTAGE REGULATOR
I
LOAD
= 0mA, C
OUT
= 22µF and T
J
= 25°C, unless otherwise noted. (The “＊” denotes specifications which apply over the
temperature range, -40°C
≤
T
J
≤
+125°C.)
PARAMETER
Adjustable Version Only
TEST CONDITIONS
MIN
TYP MAX UNIT
V
IN
= 5V, I
LOAD
= 10mA
1.238
＊
1.225
＊
＊
1.25
3
40
1.263
1.275
7
90
V
mA
µA
Reference Voltage
(Note 5)
V
IN
– V
OUT
= 1.5V ~ 10V,
I
LOAD
= 10mA ~ 1A
V
IN
=5V, V
ADJ
= 0V
V
IN
– V
OUT
= 1.5V ~ 10V, I
LOAD
= 10mA
Minimum Load Current
Adjust Pin Current
Fixed Output Version Only
Output Voltage
(Note 5)
V
IN
– V
OUT
= 1.5V,
Variable from nominal V
OUT
V
IN
– V
OUT
= 1.5V ~ 10V,
I
LOAD
= 0mA ~ 1A,
Variable from nominal V
OUT
V
IN
– V
OUT
= 1.5V, I
LOAD
= 10mA ~ 1A
-1
V
OUT
+1
%
+2
7
10
mA
＊
＊
-2
Ground Pin Current
System
Line Regulation
(Note 5)
Load Regulation
Output Current
Ripple Rejection
(Note 6)
Dropout Voltage
(Note 5 & 7)
Temperature Coefficient
(Note 5)
I
LOAD
= 10mA, V
IN
– V
OUT
= 1.5V ~ 10V
V
IN
– V
OUT
= 1.5V, I
LOAD
= 10mA ~ 1A
V
IN
– V
OUT
= 1.5V
V
IN
– V
OUT
= 3V + 1.0V
PP
, I
LOAD
= 1A
I
LOAD
= 1A
V
IN
– V
OUT
= 1.5V, I
LOAD
= 10mA
＊
＊
＊
＊
＊
＊
1
60
0.04
0.2
1.4
65
1.3
0.005
0.2
0.4
%
A
dB
1.5
V
%/°C
Notes:
5.
Low duty pulse testing with Kelvin connections required.
6.
120Hz input ripple (C
ADJ
for ADJ = 25µF, C
OUT
= 25µF).
7.
ΔV
OUT
,
ΔV
REF
= ±1%
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