1A Low Dropout Positive Adjustable or Fixed-Mode Regulator
Pb Free Plating Product
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
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.
Applications
- PC peripheral
- Communication
Ordering Information
APE 1117
Low Dropout Regulator
X XX
Vout
Package
K : SOT223-3L Blank : ADJ
H : TO252-3L 15 : 1.5V
G : SOT89-3L 18 : 1.8V
19: 1.9V
25 : 2.5V
33 : 3.3V
50 : 5.0V
Typical Circuit
5V
C1
100uF
Vin
Vout
GND
Tab is Vout
3.3V/1A
C2
100uF
Vin
Vout
Adj
Tab is Vout
R1
121
Ω
R2
121
Ω
V
o
2.5V/1A
5V
C1
100uF
C2
100uF
( 5V/3.3V fixed output )
( 5V/2.5V ADJ output )
Note: V
o
=
V
REF
∗
(1
+
R
2
)
R
1
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
APE1117
1A Low Dropout Positive Adjustable or Fixed-Mode Regulator
Pb Free Plating Product
Connection Diagram
3 PIN SOT223
( Top View )
3 PIN TO252
( Top View )
Vin
Vout
Adj (GND)
3
2
1
Tab is Vout
3
2
1
Tab is Vout
Vin
Vout
Adj (GND)
3 PIN SOT89
3
2
1
Tab is Vout
Vin
Vout
Adj (GND)
Block Diagram
Vin
3
2
Vout
+
+
－
CURRENT
LIMIT
1.25V
+
1
+
GND
(FIXED)
－
Thermal
Shutdown
1
Adj
Advanced Power Electronics Corp.
www.a-power.com.tw
2/9
APE1117
1A Low Dropout Positive Adjustable or Fixed-Mode Regulator
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)
The output of the regulator. A minimum of 10uF capacitor (0.15Ω
≤
ESR
≤
20Ω) must be connected from this pin to ground to insure
stability.
The input pin of regulator. Typically a large storage capacitor
(0.15Ω
≤
ESR
≤
20Ω) 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.
Vout
O
2
Vin
I
3
Absolute Maximum Ratings
Symbol
Parameter
Rating
Unit
Vin
P
D
T
ST
T
OP
DC Supply Voltage
Power Dissipation
Storage Temperature
Operating Junction Temperature Range
-0.3 to 12
Internally Limited
-65 to +150
0 to +150
V
oC
oC
Advanced Power Electronics Corp.
www.a-power.com.tw
3/9
APE1117
1A Low Dropout Positive Adjustable or Fixed-Mode Regulator
Pb Free Plating Product
Electrical Characteristics
(Under Operating Conditions)
CONDITIONS
o
T
J
=25 C,(V
IN
-
OUT
)=1.5V
Reference Voltage
APE1117-ADJ
I
O
=10mA
o
I
OUT
= 10mA, T
J
= 25 C,
APE1117-1.5
3V≦V
IN
≦12V
o
I
OUT
= 10mA, T
J
= 25 C,
APE1117-1.8
3.3V≦V
IN
≦12V
o
I
OUT
= 10mA, T
J
= 25 C,
APE1117-1.9
3.3V≦V
IN
≦12V
Output Voltage
o
I
OUT
= 10mA, T
J
= 25 C,
APE1117-2.5
4V≦V
IN
≦12V
o
I
OUT
= 10mA, T
J
= 25 C,
APE1117-3.3
4.8V≦V
IN
≦12V
o
I
OUT
= 10mA, T
J
= 25 C,
APE1117-5.0
6.5V≦V
IN
≦12V
I
O
=10mA,V
OUT
+1.5V<V
IN
<12V,
Line Regulation
APE1117-XXX
T
J
=25
o
C
V
IN
=3.3V,Vadj=0,0mA<Io<1A,
APE1117-ADJ
T
J
=25
o
C (Note 1,2)
V
IN
=3V, 0mA<Io<1A,
APE1117-1.5
T
J
=25
o
C (Note 1,2)
V
IN
=3.3V, 0mA<Io<1A,
APE1117-1.8
T
J
=25
o
C (Note 1,2)
V
IN
=3.3V, 0mA<Io<1A,
APE1117-1.9
Load Regulation
T
J
=25
o
C (Note 1,2)
V
IN
=4V, 0mA<Io<1A,
APE1117-2.5
T
J
=25
o
C (Note 1,2)
V
IN
= 5V, 0≦I
OUT
≦1A,
APE1117-3.3
o
T
J
=25 C (Note 1,2)
V
IN
= 8V, 0≦I
OUT
≦1A,
APE1117-5.0
o
T
J
=25 C (Note 1,2)
Dropout Voltage
APE1117-ADJ/1.5/1.8
I
OUT
= 1A ,∆V
OUT
=0.1%V
OUT
(V
IN
-V
OUT
)
/1.9/2.5/3.3/5.0
APE1117-ADJ/1.5/1.8
Current Limit
(V
IN
-V
OUT
) = 5V
/1.9/2.5/3.3/5.0
o
o
0 C≦Tj≦125 C
Minimum Load Current
APE1117-XXX
Thermal Regulation
T
A
=25
o
C, 30ms pulse
F=120Hz,C
OUT
=25uF Tantalum, I
OUT
=1A
Ripple Rejection
APE1117-XXX
V
IN
=V
OUT
+3V
Temperature Stability
I
O
=10mA
θ
JA
Thermal Resistance SOT89
SOT-223
Junction-to-Ambient(No TO-252
heat sink ;No air flow)
SOT89 : Control Circuitry/Power Transistor
θ
JC
Thermal Resistance SOT-223 : Control Circuitry/Power Transistor
TO-252 : Control Circuitry/Power Transistor
Junction-to-Case
PARAMETER
MIN
1.225
1.470
1.764
1.862
2.450
3.235
4.900
TYP
1.250
1.500
1.800
1.900
2.500
3.300
5.000
MAX
1.275
1.530
1.836
1.938
2.550
3.365
5.100
0.2
1
12
15
16
20
26
40
1.3
1. 1
5
0.008
60
0.5
300
117
92
100
15
10
10
0.04
70
15
18
19
25
33
50
1.4
UNIT
V
V
V
V
V
V
V
%
%
mV
mV
mV
mV
mV
mV
V
A
mA
%/W
dB
%
O
C/W
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.
Advanced Power Electronics Corp.
www.a-power.com.tw
4/9
APE1117
1A Low Dropout Positive Adjustable or Fixed-Mode Regulator
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