Advanced Power
Electronics Corp.
FEATURES
1.5V Maximum Dropout at Full Load Current
Fast Transient Response
Output Current Limiting
Built-in Thermal Shutdown
Good Noise Rejection
Low-ESR Ceramic Capacitor (MLCC) Required
for Stability.
3-Terminal Adjustable or Fixed 1.2V, 1.5V,
1.8V, 2.5V, 3.3V, 5.0V
Packages : SOT-223, TO-252, SOT-89.
Halogen Free Product
APE1117L
1A LOW DROPOUT LINEAR REGULATOR
DESCRIPTION
APE1117L is a low dropout positive adjustable or fixed-
mode regulator with minimum of 1A output current
capability. The product is specifically designed to provide
well-regulated supply for low voltage IC applications such as
high-speed bus termination and low current 3.3V logic
supply. APE1117L is also well suited for other applications
such as VGA cards. APE1117L is guaranteed to have lower
than 1.4V dropout at full load current making it ideal to
provide well-regulated outputs of 1.25 to 5.0 with 6.4V to
12V input supply.
TYPICAL APPLICATION
(1) Using Multilayer Ceramic Capacitor (MLCC)
Fixed Output
VIN=5V
U1
VIN
VOUT
VOUT=3.3V
VIN=5V
U1
VIN
VOUT
ADJ Output
VOUT=3.3V
R1
C1
10uF
APE1117L-33
GND
C2
10uF
C1
10uF
APE1117L-ADJ
R2
390
ADJ
240
C2
10uF
V
OUT
=
V
REF
×
(1
+
(2) Using Aluminum Electrolytic Capacitor (AL)
Fixed Output
VIN=5V
U1
VIN
VOUT
VOUT=3.3V
R
2
);
V
REF
=
1.250
V
R
1
ADJ Output
VIN=5V
U1
VIN
VOUT
VOUT=3.3V
R1
C1
10uF
APE1117L-33
GND
C2
0.1uF
C3
10uF
C1
10uF
240
ADJ
APE1117L-ADJ
C2
0.1uF
C3
10uF
R2
390
V
OUT
=
V
REF
×
(1
+
R
2
);
V
REF
=
1.250
V
R
1
Data and specifications subject to change without notice
1
201208066
Advanced Power
Electronics Corp.
ABSOLUTE MAXIMUM RATINGS
(at T
A
=25°C)
DC Supply Voltage(V
IN
) ----------------------------------
Power Dissipation(P
D
) ------------------------------------
-0.3V to 15V
(T
J
-T
A
)/R
thja
W
APE1117L
Storage Temperature Range(T
ST
) --------------------- -65°C To 150°C
Operating Junction Temperature Range(T
J
) -------- -40°C To 125°C
Maximum Junction Temperature(T
MJ
) ---------------- 150°C
Thermal Resistance from Junction to Case(R
thjc
)
SOT-223 ------ 15°C/W
SOT-89 -------- 100°C/W
TO-252 -------- 10°C/W
Thermal Resistance from Junction to Ambient(R
thja
)
Note
SOT-223 ------ 117°C/W
SOT-89 -------- 300°C/W
TO-252 -------- 92°C/W
Note. No heat sink; No air flow)
ORDERING/PACKAGE INFORMATION
APE1117L X–XX - HF
Halogen Free
Package Type
K : SOT-223
G : SOT-89
H : TO-252
Output Voltage
Blank : ADJ
12 : 1.2V
15 : 1.5V
18 : 1.8V
25 : 2.5V
33 : 3.3V
50 : 5.0V
(Top View)
Tab is VOUT
(Top View)
Tab is VOUT
(Top View)
Tab is VOUT
SOT-223
1
2
3
SOT-89 (G)
1
2
3
TO-252
1
2
VOUT
ADJ/
GND
VIN
3
ADJ/
GND
VOUT
VIN
ADJ/
GND
VOUT VIN
ELECTRICAL SPECIFICATIONS
(T
A
=25°C, unless otherwise specified)
Parameter
Operation Input Voltage
Dropout Voltage(V
IN
-V
OUT
)
TEST CONDITION
APE1117LX-
ADJ/12/15/18 I
OUT
= 1A ,
δV
OUT
=1%V
OUT
/25/33/50
APE1117LX-
ADJ/15/18/25 (V
IN
-V
OUT
) = 3V
/33/50
APE1117LX-XX
0°C≦T
J
≦125°C
APE1117LX-XX
MIN
2.75
-
TYP
-
1.3
MAX
12
1.5
UNITS
V
V
Current Limit
Minimum Load Current
Line Regulation
1.1
-
-
-
5
0.2
-
10
0.5
A
mA
%
I
OUT
=10mA, V
OUT
+1.5V<V
IN
<V
OUT
<12V,
T
J
=25°C (Note 1,2)
2
Advanced Power
Electronics Corp.
ELECTRICAL SPECIFICATIONS(Cont.)
Parameter
APE1117LX-ADJ
APE1117L
TEST CONDITION
V
IN
=3.3V,10mA≦I
OUT
≦1A,
T
J
=25°C
V
IN
=2.75V, 10mA
≦
I
OUT
≦
1A,
T
J
=25°C (Note 1,2)
V
IN
=3V, 10mA≦I
OUT
≦1A,
T
J
=25°C
(Note 1,2)
V
IN
=3.3V, 0mA≦I
OUT
≦
1A, T
J
=25°
C (Note 1,2)
V
IN
=4V, 10mA≦I
OUT
≦1A,
T
J
=25°C
(Note 1,2)
V
IN
=5V,10mA≦I
OUT
≦1A,
T
J
=25°C
(Note 1,2)
V
IN
=6.5V,10mA≦I
OUT
≦1A,
T
J
=25°
C (Note 1,2)
I
OUT
=10mA, T
J
= 25°C, 2.75V≦V
IN
≦12V
I
OUT
= 10mA, T
J
= 25°C, 3V≦V
IN
≦
12V
I
OUT
= 10mA, T
J
= 25°C, 3.3V≦V
IN
≦12V
I
OUT
= 10mA, T
J
= 25°C, 4V≦V
IN
≦
12V
I
OUT
= 10mA, T
J
= 25°C, 4.8V≦V
IN
≦12V
I
OUT
= 10mA, T
J
= 25°C, 6.5V≦V
IN
≦12V
F=120Hz,C
OUT
=10uF, APE1117LX-
XX, (V
IN
-V
OUT
) = 3V, I
OUT
= 1A
I
OUT
=10mA
MIN
-
-
-
-
-
-
-
1.225
1.176
1.47
1.764
2.45
3.235
4.9
-
-
TYP
0.4
10
12
15
20
26
40
1.25
1.2
1.5
1.8
2.5
3.3
5
60
0.5
MAX
1
12
15
18
25
33
50
1.275
1.224
1.53
1.836
2.55
3.365
5.1
70
-
UNITS
%
mV
mV
mV
mV
mV
mV
V
V
V
V
V
V
V
dB
%
APE1117LX-12
APE1117LX-15
APE1117LX-18
APE1117LX-25
APE1117LX-33
APE1117LX-50
Load Regulation
Reference Voltage
APE1117LX-ADJ
I
OUT
= 10mA, T
J
=25°C, (V
IN
-V
OUT
)=1.5V
APE1117LX-12
APE1117LX-15
APE1117LX-18
Output Voltage
APE1117LX-25
APE1117LX-33
APE1117LX-50
Ripple Rejection
Temperature Stability
Note1: See thermal regulation specifications for changes in output voltage due to heating effects. Line and load regulation are measured at a
constant junction temperature by low duty cycle pulse testing. Load regulation is measured at the output lead = 1/18” from the package.
Note2: Line and load regulation are guaranteed up to the maximum power dissipation of 15W. Power dissipation is determined by the difference
between input and output differential and the output current. Guaranteed maximum power dissipation will not be available over the full input/output
range.
Note3: Quiescent current is defined as the minimum output current required in maintaining regulation. At 12V input/output differential the device is
guaranteed to regulate if the output current is greater than 10mA.
3
Advanced Power
Electronics Corp.
PIN DESCRIPTIONS
PIN SYMBOL
ADJ/GND
VOUT
PIN DESCRIPTION
APE1117L
A resistor divider from this pin to the V
OUT
pin and ground sets the output voltage.
(Ground only for Fixed-Mode)
The output of the regulator. (Note1,2)
The input pin of regulator. Typically a large storage capacitor is connected from
this pin to ground to insure that the input voltage does not sag below the minimum
dropout voltage during the load transient response. This pin must always be 1.5V
higher than VOUT in order for the device to regulate properly. (Note1)
VIN
Note1: To prevent oscillation, a 4.7uF minimum X7R or X5R dielectric is strongly recommended if ceramics are used as output capacitors.
Note2: A minimum of 4.7uF EL capacitor to 100uF must be connected from this pin to ground to insure stability.
BLOCK DIAGRAM
Vin
3
2
Vout
+
+
-
CURRENT
LIMIT
1.25V
+
1
+
Thermal
Shutdown
GND
(FIXED)
-
1
Adj
4
Advanced Power
Electronics Corp.
TYPICAL PERFORMANCE CHARACTERISTICS
1.6
APE1117L
0.20
Output Voltage Deviation (%)
1.4
1.2
Tj=25℃
0
I load=800mA
-0.20
Dropout Voltage (V)
1
0.8
0.6
Tj= 125℃
0.4
0.2
0
0
0.2
0.4
0.6
0.8
1
-0.40
-0.80
-1
Output Current (A)
Dropout Voltage vs Output Current
-25
0
25
50
75
100
125
Temperature (℃)
Load Regulation vs Temperature
2
1.5
1
0.8
Output Voltage Change (%)
1
0. 5
0
-0.5
-1
-1.5
-2
-50
-25
0
25
50
75
100
125
150
Output Voltage Deviation (%)
0.6
0.4
0.2
0
Temperature (℃)
2
4
6
8
10
12
Percent Change in Output
Voltage vs Temperature
Input Voltage (V)
Line Regulation
Output VoltageDeviation (mV) Input Voltage (V)
Load Current (A) Output Voltage Deviation ( mV)
7.5
6.5
5.5
40
20
0
-20
-40
0
Cin=1uF
Cout 10 uF Tantalum
=
30
20
10
0
- 10
- 20
2
1
0
-1
0
C in =1uF
C out= 10 uF Tantalum
Preload= 100mA
20
40
60
80
100 120 140 160 180 200
TIME (us)
10
20
30
40
50
60
70
80
90
100
TIME (us)
Line Transient Response
Load Transient Response
5
