0.6A Low Dropout Positive Adjustable or Fixed-Mode Regulator
Features
•
•
•
•
•
•
•
General Description
AP1115 is a low dropout positive adjustable or
fixed-mode regulator with minimum of 0.6A 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.
AP1115 is also well suited for other applications
such as VGA cards. AP1115 is guaranteed to have
<1.3V dropout at full load current making it ideal to
provide well regulated outputs of 1.25V to 5V with
up to 18V input supply.
1.3V maximum dropout at full load current
Fast transient response
Output current limiting
Built-in thermal shutdown
Packages: SOT89, TO92
Good noise rejection
3-Terminal Adjustable or Fixed 1.5V / 1.8V / 2.5V
/ 2.8V / 3.0V /3.3V / 5.0V
Applications
•
•
PC peripheral
Communication
Connection Diagram (Top View)
AP1115A-3 PIN SOT89
3
2
1
Tab is Pin2
AP1115B-3 PIN SOT89
3
2
1
Tab is Pin2
Vout
Vin
Adj (GND)
AP1115B-3 PIN TO92
Vin
Adj (GND)
Vout
AP1115A-3 PIN TO92
3 Vout
2 GND
1 Vin
3 Vout
2 Vin
1 GND
Pin Descriptions
NAME
Adj
(GND)
Vout
Vin
I/O
I
O
I
FUNCTION
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 must be connected from
this pin to ground to insure stability.
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 1.3V
higher than Vout in order for the device to regulate properly.
This datasheet contains new product information. Anachip 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.
Rev.1.0 May.19, 2004
1/7
AP1115
0.6A Low Dropout Positive Adjustable or Fixed-Mode Regulator
Ordering Information
AP 1115 X X XX X X
Low Dropout Regulator
Lead Free
Packing
Blank : Tube
A: Pin1:Vout
Y : SOT89-3L Blank : ADJ
Blank : Normal
2:Adj(GND) V : TO92-3L
15 : 1.5V
L : Lead Free Package
A : Taping
3:Vin
B: Pin1:Adj(GND)
2:Vin
3:Vout
18 : 1.8V
25 : 2.5V
28 : 2.8V
30 : 3.0V
33 : 3.3V
50 : 5.0V
Pin Version
Package
Vout
Typical Circuit
5V
C1
100uF
Vin
GND
Vout
3.3V/0.5A
C2
100uF
5V
C1
100uF
Vin
Adj
Vout
R1
121O
R2
121O
V
O
2.5V/0.5A
C2
100uF
AP1115A (5V/3.3V fixed output)
AP1115A (5V/2.5V Adj output)
5V
5V
C1
100uF
Vout
Vin
GND
3.3V/0.5A
C2
100uF
Vout
Vin
Adj
C1
100uF
V
O
C2
R1
100uF
121O
R2
121O
2.5V/0.5A
AP1115B (5V/3.3V fixed output)
AP1115B (5V/2.5V Adj output)
Note: V
o
=
V
REF
∗
(1
+
Anachip Corp.
www.anachip.com.tw
2/7
R
2
)
R
1
Rev.1.0 May.19, 2004
AP1115
0.6A Low Dropout Positive Adjustable or Fixed-Mode Regulator
Absolute Maximum Ratings
Symbol
V
IN
P
D
T
ST
T
OP
Parameter
DC Supply Voltage
Power Dissipation
Storage Temperature
Operating Junction Temperature Range
Rating
-0.3 to 18 V
Internally Limited
-65 to +150
0 to +150
Unit
V
o
o
C
C
Electrical Characteristics
(Under Operating Conditions)
PARAMETER
Reference Voltage
AP1115-ADJ
AP1115-1.5
AP1115-1.8
AP1115-2.5
Output Voltage
AP1115-2.8
AP1115-3.0
AP1115-3.3
AP1115-5.0
Line Regulation
AP1115-XXX
AP1115-ADJ
AP1115-1.5
AP1115-1.8
AP1115-2.5
Load Regulation
AP1115-2.8
AP1115-3.0
AP1115-3.3
AP1115-5.0
Dropout Voltage
(V
IN
-V
OUT
)
Current Limit
Minimum Load Current
Thermal Regulation
CONDITIONS
o
T
J
=25 C,(V
IN
-
OUT
)=1.5V
I
O
=10mA
I
OUT
= 10mA, T
J
= 25
o
C,
3V≦V
IN
≦12V
I
OUT
= 10mA, T
J
= 25
o
C,
3.3V≦V
IN
≦12V
o
I
OUT
= 10mA, T
J
= 25 C,
4V≦V
IN
≦12V
o
I
OUT
= 10mA, T
J
= 25 C,
4.3V≦V
IN
≦12V
o
I
OUT
= 10mA, T
J
= 25 C,
4.5V≦V
IN
≦12V
o
I
OUT
= 10mA, T
J
= 25 C,
4.8V≦V
IN
≦12V
I
OUT
= 10mA, T
J
= 25
o
C,
6.5V≦V
IN
≦12V
I
O
=10mA,V
OUT
+1.5V<V
IN
<15V,
o
T
J
=25 C
V
IN
=3.3V,Vadj=0,0mA<Io<0.6A,
o
T
J
=25 C (Note 1,2)
V
IN
=3V, 0mA<Io<0.6A,
o
T
J
=25 C (Note 1,2)
V
IN
=3.3V, 0mA<Io<0.6A,
T
J
=25
o
C (Note 1,2)
V
IN
=4V, 0mA<Io<0.6A,
T
J
=25
o
C (Note 1,2)
V
IN
=4.3V, 0mA<Io<0.6A,
o
T
J
=25 C (Note 1,2)
V
IN
=5V, 0≦I
OUT
≦0.6A,
o
T
J
=25 C (Note 1,2)
V
IN
=5V, 0≦I
OUT
≦0.6A,
T
J
=25
o
C (Note 1,2)
V
IN
=8V, 0≦I
OUT
≦0.6A,
T
J
=25
o
C (Note 1,2)
MIN
1.225
1.470
1.764
2.450
2.744
2.940
3.235
4.900
-
-
-
-
-
-
-
-
-
-
0.7
-
-
TYP
1.250
1.500
1.800
2.500
2.800
3.000
3.300
5.000
-
-
12
15
20
22
23
26
40
1.1
-
5
0.008
MAX
1.275
1.530
1.836
2.550
2.856
3.060
3.365
5.100
0.2
1
15
18
25
28
30
33
50
1.3
-
10
0.04
UNIT
V
V
V
V
V
V
V
V
%
%
mV
mV
mV
mV
mV
mV
mV
V
A
mA
%/W
AP1115-ADJ/1.5/1.8
I
OUT
= 0.6A,
∆V
OUT
=0.1%V
OUT
2.5/2.8/3.0/3.3/5.0
AP1115-ADJ/1.5/1.8
(V
IN
-V
OUT
) = 5V
2.5/2.8/3.0/3.3/5.0
0
o
C≦Tj≦125
o
C
AP1115-XXX
T
A
=25
o
C, 30ms pulse
This datasheet contains new product information. Anachip 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.
Rev.1.0 May.19, 2004
3/7
AP1115
0.6A Low Dropout Positive Adjustable or Fixed-Mode Regulator
Electrical Characteristics (Continued)
(Under Operating Conditions)
Ripple Rejection
Temperature Stability
F=120Hz,C
OUT
=25uF Tantalum, I
OUT
=0.6A
AP1115-XXX
V
IN
=V
OUT
+3V
I
O
=10mA
Thermal Resistance Junction-to-Ambient (No
heat sink; No air flow)
SOT89: Control Circuitry/Power Transistor
Thermal Resistance Junction-to-Case
-
-
-
-
-
60
0.6
300
160
100
70
-
-
-
-
dB
%
o
o
θ
JA
θ
JC
SOT89
TO92
C/W
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 5W. Power dissipation is determined by the
input/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 to maintain regulation. At 12V input/output differential the
device is guaranteed to regulate if the output current is greater than 10mA.
Marking Information
Identification Code
Output
version
ADJ
1.5V
1.8V
2.5V
2.8V
3.0V
3.3V
5.0V
Part Number
AP1115A
AP1115B
JO
JP
JQ
JR
JC
JM
JS
JT
JU
JV
JW
JX
JD
JN
JY
JZ
Date Code
Month: A~L
Year: 0~9
XX
XX X
1
2
3
Identification Code
( See the table )
Blank: normal
L: Lead Free Package
SOT89-3
(Top View)
Part Number: AP1115
A: A version
B: B version
Output voltage
Blank: ADJ
15:1.5V
18:1.8V
25:2.5V
28:2.8V
30:3.0V
33:3.3V
50:5.0V
Anachip Corp.
www.anachip.com.tw
4/7
1115
X XX
Y WW X X
Blank: normal
L: Lead Free Package
Internal code: Blank or A~Z
Xth Week: 01~52
Year: "1"=2001
"2"=2002
1
2
3
TO92
Rev.1.0 May.19, 2004
AP1115
0.6A Low Dropout Positive Adjustable or Fixed-Mode Regulator
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