1A Low Dropout Positive Adjustable or Fixed-Mode Regulator
APE1117
 
This datasheet contains new product information. Advanced Power Electronics Corp. reserves the rights to modify the product specification without notice. No liability is assumed as 
a result of the use of this product. No rights under any patent accompany the sale of the product. 
 
1/9
                 
 Features 
 
- 1.4V maximum dropout at full load current 
- Fast transient response 
- Output current limiting   
- Built-in thermal shutdown 
- Packages: SOT223,  TO252,  SOT89, 
 
- Good noise rejection
  
-  3-Terminal  Adjustable  or  Fixed  1.5V,  1.8V,  1.9V, 
2.5V, 3.3V, 5.0V
 
- RoHS Compliant 
 
 
 Applications 
 
- PC peripheral 
- Communication 
 
 
 General Description 
 
APE1117  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. 
APE1117  is  also  well  suited  for  other  applications 
such  as  VGA  cards.  APE1117  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. 
 
 
 
 
 
  Ordering Information 
 
APE 1117 X XX
Low Dropout Regulator Package Vout
K : SOT223-3L
H : TO252-3L
G : SOT89-3L
Blank : ADJ
15 : 1.5V
18 : 1.8V
19:  1.9V
25 : 2.5V
33 : 3.3V
50 : 5.0V
 
  Typical Circuit 
C2
100uF
5V
3.3V/1A
Tab is Vout
Vin
Vout
GND
C1
100uF
( 5V/3.3V fixed output )   
R1
121
R2
121
C2
100uF
5V
2.5V/1A
Tab is Vout
Vin
Vout
Adj
C1
100uF
o
V
    ( 5V/2.5V ADJ output )   
)
1
2
REF o
R
R
(1 V V   +  = Note:
 
 
 
1A Low Dropout Positive Adjustable or Fixed-Mode Regulator 
APE1117
 
Advanced  Power  Electronics  Corp. 
www.a-power.com.tw                                                                                                                                                                                                     
2/9
                 
 
  Connection Diagram 
 
3 PIN SOT223 3 PIN TO252 
Vin
Vout
Adj (GND)
Tab is Vout
( Top View )
3
2
1
Vin
Vout
Adj (GND)
Tab is Vout
( Top View )
3 PIN SOT89
Adj (GND)
Vout
Vin
3
2
1
1
3
2
Tab is Vout
 
  Block Diagram 
 
 
3
Thermal
Shutdown 1
2 Vout
Adj
1.25V
+
+
CURRENT
LIMIT
Vin
+
1
GND
(FIXED)
 
1A Low Dropout Positive Adjustable or Fixed-Mode Regulator 
APE1117
 
Advanced  Power  Electronics  Corp. 
www.a-power.com.tw                                                                                                                                                                                                     
3/9 
Pb Free Plating Product
 
  Pin Descriptions   
 
NAME  I/O  PIN #  FUNCTION 
Adj (GND)  I  1 
A resistor divider from this pin to the Vout pin and ground sets the 
output voltage. (Ground only for Fixed-Mode) 
Vout  O  2 
The output of the regulator. A minimum of 10uF capacitor (0.15 
 ESR  20) must be connected from this pin to ground to insure 
stability. 
Vin  I  3 
The  input  pin  of  regulator.  Typically  a  large  storage  capacitor 
(0.15    ESR    20)  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  1.3V  higher  than  Vout  in  order  for  the  device  to 
regulate properly. 
 
 
 Absolute Maximum Ratings 
 
 
Symbol  Parameter  Rating  Unit 
Vin  DC Supply Voltage  -0.3 to 12  V 
PD  Power Dissipation  Internally Limited 
TST  Storage Temperature  -65 to +150 
o
C 
T
OP
  Operating Junction Temperature Range  0 to +150 
o
C 
 
 
 
1A Low Dropout Positive Adjustable or Fixed-Mode Regulator 
APE1117
 
Advanced  Power  Electronics  Corp. 
www.a-power.com.tw                                                                                                                                                                                                     
4/9
                 
 
 Electrical Characteristics (Under Operating Conditions)   
 
PARAMETER  CONDITIONS  MIN  TYP  MAX  UNIT
Reference Voltage  APE1117-ADJ 
T
J
=25
o
C,(V
IN
-
OUT
)=1.5V 
I
O
=10mA 
1.225 1.250  1.275 V 
APE1117-1.5 
I
OUT
 = 10mA, T
J
 = 25
o
C,   
3V V
IN
 12V 
1.470 1.500  1.530 V 
APE1117-1.8 
I
OUT
 = 10mA, T
J
 = 25
o
C,   
3.3V V
IN
 12V 
1.764 1.800  1.836 V 
APE1117-1.9 
I
OUT
 = 10mA, T
J
 = 25
o
C,   
3.3V V
IN
 12V 
1.862 1.900  1.938 V 
APE1117-2.5 
I
OUT
 = 10mA, T
J
 = 25
o
C,   
4V V
IN
 12V 
2.450 2.500  2.550 V 
APE1117-3.3 
I
OUT
 = 10mA, T
J
 = 25
o
C,   
4.8V V
IN
 12V 
3.235 3.300  3.365 V 
Output Voltage 
APE1117-5.0 
I
OUT
 = 10mA, T
J
 = 25
o
C,   
6.5V V
IN
 12V 
4.900 5.000  5.100 V 
Line Regulation  APE1117-XXX 
I
O
=10mA,V
OUT
+1.5V<V
IN
<12V, 
T
J
=25
o
C 
    0.2  % 
APE1117-ADJ 
V
IN
=3.3V,Vadj=0,0mA<Io<1A, 
T
J
=25
o
C (Note 1,2) 
    1  % 
APE1117-1.5 
V
IN
=3V, 0mA<Io<1A, 
T
J
=25
o
C (Note 1,2) 
  12  15  mV 
APE1117-1.8 
V
IN
=3.3V, 0mA<Io<1A, 
T
J
=25
o
C (Note 1,2) 
  15  18  mV 
APE1117-1.9 
V
IN
=3.3V, 0mA<Io<1A, 
T
J
=25
o
C (Note 1,2) 
  16  19  mV 
APE1117-2.5 
V
IN
=4V, 0mA<Io<1A, 
T
J
=25
o
C (Note 1,2) 
  20  25  mV 
APE1117-3.3 
V
IN 
= 5V, 0 I
OUT
 1A,   
T
J
=25
o
C (Note 1,2) 
  26  33  mV 
Load Regulation 
APE1117-5.0 
V
IN 
= 8V, 0 I
OUT
 1A, 
T
J
=25
o
C (Note 1,2) 
  40  50  mV 
Dropout Voltage 
(V
IN
-V
OUT
) 
APE1117-ADJ/1.5/1.8 
/1.9/2.5/3.3/5.0 
I
OUT 
= 1A ,V
OUT
=0.1%V
OUT
    1.3  1.4  V 
Current Limit 
APE1117-ADJ/1.5/1.8 
/1.9/2.5/3.3/5.0 
(V
IN
-V
OUT
) = 5V  1. 1      A 
Minimum Load Current  APE1117-XXX  0
o
C Tj 125
o
C    5  10  mA 
Thermal Regulation  T
A
=25
o
C, 30ms pulse    0.008  0.04  %/W 
F=120Hz,C
OUT
=25uF Tantalum, I
OUT
=1A         
Ripple Rejection 
APE1117-XXX  V
IN
=V
OUT
+3V    60  70  dB 
Temperature Stability  I
O
=10mA    0.5    % 
JA
 Thermal Resistance 
Junction-to-Ambient(No 
heat sink ;No air flow) 
SOT89 
SOT-223 
TO-252 
 
300 
117 
92 
 
 
O
C/W
 
JC
 Thermal Resistance 
Junction-to-Case 
SOT89    : Control Circuitry/Power Transistor 
SOT-223 : Control Circuitry/Power Transistor 
TO-252    : Control Circuitry/Power Transistor
 
 
100 
15 
  10 
 
 
 
O
C/W
 
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. 
 
1A Low Dropout Positive Adjustable or Fixed-Mode Regulator 
APE1117
 
Advanced  Power  Electronics  Corp. 
www.a-power.com.tw                                                                                                                                                                                                     
5/9 
Pb Free Plating Product
 
  Typical Performance Characteristics 
 
Temperature (
o
C)
Percent Change in Output Voltage vs Temperature
O
u
t
p
u
t
 
V
o
l
t
a
g
e
 
C
h
a
n
g
e
 
(
%
)
-50 -25 0 25 50 75 100 125 150
- 2
-1.5
- 1
-0.5
0
0. 5
1
1.5
2
Input Voltage (V)
Line Regulation
O
u
t
p
u
t
 
V
o
l
t
a
g
e
 
D
e
v
i
a
t
i
o
n
 
(
%
)
0
0.2
0.4
0.6
0.8
1
2 4 6 8 10 12
TIME (us)
Line Transient Response
O
u
t
p
u
t
 
V
o
l
t
a
g
e
 
D
e
v
i
a
t
i
o
n
 
(
m
V
)
I
n
p
u
t
 
V
o
l
t
a
g
e
 
(
V
)
-40
-20
0
20
40
5.5
6.5
7.5
Cin=1uF
Cout=10uF Tantalum
0 20 40 60 80 100 120 140 160 180 200
TIME (us)
Load Transient Response
L
o
a
d
 
C
u
r
r
e
n
t
 
(
A
)
O
u
t
p
u
t
 
V
o
l
t
a
g
e
 
D
e
v
i
a
t
i
o
n
 
(
m
V
)
0 10 20 30 40 50 60 70 80 90 100
-1
0
1
2
-20
-10
0
10
20
30
C in = 1uF
C out = 10 uF  Tantalum
Preload = 100mA
Temperature (
o
C)
Load Regulation vs Temperature
O
u
t
p
u
t
 
V
o
l
t
a
g
e
 
D
e
v
i
a
t
i
o
n
 
(
%
)
-25 0 25 50 75 100 125
- 1
-0.80
-0.40
-0.20
0
0.20
I load=800mA
Dropout Voltage vs Output Current
Output Current (mA)
D
r
o
p
o
u
t
 
V
o
l
t
a
g
e
 
(
V
)
0
0. 2
0. 4
0. 6
0. 8
1. 0
1. 2
1. 4
1. 6
1. 8
2. 0
0 250 500 750 1000
Tj = 125 
o
C
Tj = 25 
o
C
 
 
1A Low Dropout Positive Adjustable or Fixed-Mode Regulator 
APE1117
 
Advanced  Power  Electronics  Corp. 
www.a-power.com.tw                                                                                                                                                                                                     
6/9
                 
  Marking Information 
 
(1)  SOT223-3L 
 
 
X XX XXX
1 1 1 7 
Output Type:
1117: Adjustable
117-15: 1.5V
117-18: 1.8V
117-19: 1.9V
117-25: 2.5V
117-33: 3.3V
117-50: 5.0V
Year:
(Top view)
"2" =  2002
"1" =  2001
Xth Week: 01~52 
Sequence:
001~
 
 
 
 
(2) TO252-3L 
 
117- 33
Output Type:
1117: Adjustable
117-15: 1.5V
117-18: 1.8V
117-19: 1.9V
117-25: 2.5V
117-33: 3.3V
117-50: 5.0V
Logo
Xth Week: 01~52 
Year:
(Top view)
"2" =  2002
"1" =  2001
X XX XXX
~
Sequence:
001~
 
 
(3) SOT89-3L 
 
1 3 2
Date Code
Year: 
 1 =2001
 2 =2002
Xth week: 
 01~52
Sequence:
 0~9, A~
Identification Code
( See the table )  
XX
X XX X  
 
Identification 
code 
Output version 
EA  APE1117-ADJ 
EB  APE1117-1.5V 
EC  APE1117-1.8V 
EG  APE1117-1.9V 
ED  APE1117-2.5V 
EE  APE1117-3.3V 
EF  APE1117-5.0V 
 
1A Low Dropout Positive Adjustable or Fixed-Mode Regulator 
APE1117
 
Advanced  Power  Electronics  Corp. 
www.a-power.com.tw                                                                                                                                                                                                     
7/9
                 
  Package Dimension 
 
(1)  SOT223 
 
H E
K
D
B1
e
e1
B
c
L
A
1
a
Seating Plane
A
3.3
1
.
6
6
.
4
2.3
1.2
1
.
6
Land Pattern Recommendation (Unit: mm)
 
 
 
 
 
Dimensions In Millimeters  Dimensions In Inches 
Symbol 
Min.  Nom.  Max.  Min.  Nom.  Max. 
A  1.50  1.65  1.80  0.059  0.065  0.071   
A1  0.02  0.05  0.08  0.001  0.002  0.003   
B  0.60  0.70  0.80  0.024  0.028  0.031   
B1  2.90  -  3.15(Ref.) 0.114  -  0.124(Ref.) 
c  0.28  0.30  0.32  0.011  0.012  0.013   
D  6.30  6.50  6.70  0.248  0.256  0.264   
E  3.30  3.50  3.70  0.130  0.138  0.146   
e  2.3 Basic  0.091 Basic 
e1  4.6 Basic  0.181 Basic 
H  6.70  7.00  7.30  0.264  0.276  0.287   
L  0.91  1.00  1.10  0.036  0.039  0.043   
K  1.50  1.75  2.00  0.059  0.069  0.079   
\   0  5
o
  10  0  5
o
  10 
]   -  13
o
  -  -  13
o
  - 
 
 
 
1A Low Dropout Positive Adjustable or Fixed-Mode Regulator 
APE1117
 
Advanced  Power  Electronics  Corp. 
www.a-power.com.tw                                                                                                                                                                                                     
8/9
                 
 
(3)  TO252 
 
b2
E
e
b
L
2
e1
D
L
1
H
A
C
1
C
A
1
SEATING PLANE
S
E
E
 
N
O
T
E
2
L
5
.
6
1
1
.
0
5.6
2
.
0
2.25
Land Pattern Recommendation (Unit: mm)
7
.
2
1.2
 
Notes: 
1.  JEDEC Outline: TO-252 AB 
2.  Mils suggested for positive contact at mounting. 
 
 
Dimensions In Millimeters  Dimensions In Inches 
Symbol 
Min.  Nom.  Max.  Min.  Nom.  Max. 
A  2.18  2.29  2.40  0.086  0.090  0.094 
A1  0.89  -  1.14  0.035  -  0.045 
b  0.61 TYP.  0.024 TYP. 
b2  5.20  5.35  5.50  0.205  0.211  0.217 
C  0.45  0.52  0.58  0.018  0.020  0.023 
C1  0.45  0.52  0.58  0.018  0.020  0.023 
D  5.40  5.57  6.20  0.213  0.219  0.244 
E  6.35  6.58  6.80  0.250  0.259  0.268 
e  2.28 BSC.  0.090 BSC. 
e1  4.57 BSC.  0.180 BSC. 
H  9.00  9.70  10.40  0.354  0.382  0.409 
L  0.51  -  -  0.020  -  - 
L1  0.64  0.83  1.02  0.025  0.033  0.040 
L2  0.88  -  1.27  0.035  -  0.050 
 
 
 
1A Low Dropout Positive Adjustable or Fixed-Mode Regulator 
APE1117
 
Advanced  Power  Electronics  Corp. 
www.a-power.com.tw                                                                                                                                                                                                     
9/9 
Pb Free Plating Product
(5)  SOT89   
 
L
H
E
E
D1
e1
e
A
D
b1
b b
8
0
(2x)
1.7
C
0.4
0.9
2
.
7
1
.
3
1
.
9
5
0
(2x)
Land Pattern Recommendation (Unit: mm)
1.5
 
 
Dimensions In Millimeters  Dimensions In Inches 
Symbol 
Min.  Nom.  Max.  Min.  Nom.  Max. 
A  1.40  1.50  1.60  0.055  0.059  0.063 
B  0.36  0.42  0.48  0.014  0.016  0.018 
b1  0.41  0.47  0.53  0.016  0.043  0.051 
C  0.35  0.39  0.43  0.014  0.015  0.017 
D  4.40  4.50  4.60  0.173  0.177  0.181 
D1  1.40  1.60  1.75  0.055  0.062  0.069 
e  2.90  3.00  3.10  0.114  0.118  0.122 
e1  1.45  1.50  1.55  0.057  0.059  0.061 
E  2.35  2.48  2.60  0.093  0.098  0.102 
HE  3.94  -  4.25  0.155  -  0.167 
L  0.80  -  1.20  0.031  -  0.047