AP1118
1A Positive Low Dropout Fixed-Mode Regulator With EN Function
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. 0.2 Feb. 10, 2004
1/10
Features
•1.4V maximum dropout at full load current
•Fast transient response
•Output current limiting
•Built-in thermal shutdown
•Packages: TO220-5, TO252-5, TO263-5, SOP8
•Good noise rejection
•Fixed Output 1.5V, 1.8V, 2.5V, 3.3V, 5.0V, 9.0V,
12V
•Enable function
Applications
• PC peripheral
• Communication
• CDROM..
General Description
AP1118 is a low dropout positive 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. AP1118 is also
well suited for other applications such as VGA
cards. AP1118 is guaranteed to have <1.4V
dropout at full load current making it ideal to provide
well regulated outputs of 1.25 to 12V with up to 18V
input supply. The AP1118 offers a TTL – Logic
compatible enable pin.
Ordering Information
AP 1118 XXX X X
Low Dropout Regulator
Package Vout
D : TO252-5L
T : TO220-5L
K : TO263-5L
S : SOP-8L
15 : 1.5V
18 : 1.8V
25 : 2.5V
33 : 3.3V
50 : 5.0V
90 : 9.0V
12 : 12V
Packing
Blank : Tube
A : Taping
Lead Free
Blank : Normal
L : Lead Free Package
Typical Circuit
C2
100uF
5V
3.3V/1A
Tab is Vout
Vin
Vout
GND
C1
100uF
( 5V/3.3V fixed output )
EN
NC
AP1118
1A Positive Low Dropout Fixed-Mode Regulator With EN Function
Anachip Corp.
www.anachip.com.tw Rev.0.2 Feb. 10, 2004
2/10
Connection Diagram
SOP-8L
Vout
GND
( Top View )
2
1
3EN
Vin
4
5
Vout
7
Vout
Vout
6
8
Vout
5 PIN TO252/TO263
5
3
1
Vin
Vout
GND
Tab is Vout
( Top View )
2
4EN
NC
5 PIN TO220
Tab is Vout
Vin
Vout
GND
5
3
1
2
4EN
NC
Pin Descriptions
NAME FUNCTION
GND Ground.
Vout The output of the regulator. A minimum of 10uF capacitor must be connected from this pin
to ground to insure stability.
Vin
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.
EN The input pin of regulator. TTL/CMOS compatible input Logic high = disable output, Logic
Low or open = output enable. (internal pull-down resistor~100 K).
NC No connection.
AP1118
1A Positive Low Dropout Fixed-Mode Regulator With EN Function
Anachip Corp.
www.anachip.com.tw Rev.0.2 Feb. 10, 2004
3/10
Absolute Maximum Ratings
Characteristics Symbol Values Unit
DC Supply Voltage Vin -0.3 to 18 V
Enable Pin Voltage VEN 7 V
Power Dissipation PD Internally Limited
Storage Temperature TST -65 to +150 oC
Operating Junction Temperature Range TOP. 0 to +150
oC
Electrical Characteristics (Under Operating Conditions)
PARAMETER CONDITIONS MIN TYP MAX UNIT
AP1118-1.5 IOUT = 10mA, TJ = 25oC,
3V≦VIN≦15V 1.470 1.500 1.530 V
AP1118-1.8 IOUT = 10mA, TJ = 25oC,
3.3V≦VIN≦15V 1.764 1.800 1.836 V
AP1118-2.5 IOUT = 10mA, TJ = 25oC,
4V≦VIN≦15V 2.450 2.500 2.550 V
AP1118-3.3 IOUT = 10mA, TJ = 25oC,
4.8V≦VIN≦15V 3.235 3.300 3.365 V
AP1118-5.0 IOUT = 10mA, TJ = 25oC,
6.5V≦VIN≦15V 4.900 5.000 5.100 V
AP1118-9.0 IOUT = 10mA, TJ = 25oC,
10.5V≦VIN≦18V 8.820 9.000 9.180 V
Output Voltage
AP1118-12.0 IOUT = 10mA, TJ = 25oC,
13.5V≦VIN≦18V 11.760 12.000 12.240 V
Line Regulation AP1118-XXX IO=10mA,VOUT+1.5V<VIN<18V,
TJ=25oC 0.2 %
AP1118-1.5 VIN=3V, 0mA<Io<1A,
TJ=25oC (Note 1,2) 12 15 mV
AP1118-1.8 VIN=3.3V, 0mA<Io<1A,
TJ=25oC (Note 1,2) 15 18 mV
AP1118-2.5 VIN=4V, 0mA<Io<1A,
TJ=25oC (Note 1,2) 20 25 mV
AP1118-3.3 VIN = 5V, 0≦IOUT≦1A,
TJ=25oC (Note 1,2) 26 33 mV
AP1118-5.0 VIN = 8V, 0≦IOUT≦1A,
TJ=25oC (Note 1,2) 40 50 mV
AP1118-9.0 VIN =12V, 0≦IOUT≦1A,
TJ=25oC (Note 1,2) 70 90 mV
Load Regulation
AP1118-12.0 VIN =15V, 0≦IOUT≦1A,
TJ=25oC (Note 1,2) 100 120 mV
Dropout Voltage
(VIN-VOUT)
AP1118- 1.5/1.8
2.5/3.3/5.0/9.0/12 IOUT = 1A , ∆VOUT=0.1V 1.3 1.4 V
AP1118
1A Positive Low Dropout Fixed-Mode Regulator With EN Function
Anachip Corp.
www.anachip.com.tw Rev.0.2 Feb. 10, 2004
4/10
Electrical Characteristics(Continued) (Under Operating Conditions)
PARAMETER CONDITIONS MIN TYP MAX UNIT
Current Limit AP1118- 1.5/1.8
2.5/3.3/5.0/9.1/12 (VIN-VOUT) = 5V 1. 1 A
Minimum Load Current AP1118-XXX 0oC≦Tj≦125oC 5 10 mA
Logic Low (ON) 0.8
VEN Enable Input Voltage Logic High (OFF) 1.6 V
VEN = 0.8V 10
IEN Enable Input Current VEN = 2.0V
80 µA
Thermal Regulation TA=25℃, 30ms pulse 0.008 0.04 %/W
F=120Hz,COUT=25uF Tantalum, IOUT=1A
Ripple Rejection AP1118-XXX VIN=VOUT+3V 60 70 dB
Temperature Stability IO=10mA 0.5 %
JA
θ
Thermal Resistance
Junction-to-Ambient(No
heat sink ;No air flow)
SOP-8L
TO-252-5L
TO-220-5L
TO263-5L
150
102
85
90
OC/W
JC
θ
Thermal Resistance
Junction-to-Case
SOP-8L
TO-252-5L
TO-220-5L
TO263-5L
: Control Circuitry/Power Transistor
25
15
0.65/2.7
3.5
OC/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
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.
AP1118
1A Positive Low Dropout Fixed-Mode Regulator With EN Function
Anachip Corp.
www.anachip.com.tw Rev.0.2 Feb. 10, 2004
5/10
Typical Performance Characteristics
Temperature (
o
C)
Percent Change in Output Voltage vs Temperature
Output Voltage Change (%)
-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
Output Voltage Deviation (%)
0
0.2
0.4
0.6
0.8
1
24
6 8 10 12
TIME (us)
Line Transient Response
Output Voltage Deviation (mV) Input Voltage (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
Load Current (A) Output Voltage Deviation (mV)
010
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
Output Current (mA)
Dropout Voltage vs Output Current
Dropout Voltage (V)
0
0. 2
0. 4
0. 6
0. 8
1. 0
1. 2
1. 4
1. 6
1. 8
2. 0
0250 500 750 1000
Tj = 125
o
C
Tj = 25
o
C
Temperature (
o
C)
Load Regulation vs Temperature
Output Voltage Deviation (%)
-25 0 25 50 75 100 125
- 1
-0.80
-0.40
-0.20
0
0.20
I load=800mA
AP1118
1A Positive Low Dropout Fixed-Mode Regulator With EN Function
Anachip Corp.
www.anachip.com.tw Rev.0.2 Feb. 10, 2004
6/10
Marking Information
(1) TO220-5L
A C
1118-XX
1118-XX: Voltage
1118-15: 1.5V
1118-18: 1.8V
1118-25: 2.5V
1118-33: 3.3V
1118-50: 5.0V
1118-90: 9.0V
1118-12: 12V
Logo
ID code
Year:
( Top view )
"02" = 2002
"01" = 2001
XX XX X X
Xth week: 01~52
~
Blank: normal
L: Lead Free Package
(2) TO252/TO263-5L
A C
1118- XX
1118-XX: Voltage
1118-15: 1.5V
1118-18: 1.8V
1118-25: 2.5V
1118-33: 3.3V
1118-50: 5.0V
1118-90: 9.0V
1118-12: 12V
Logo
ID Code
Xth Week: 01~52
Year:
(Top view)
"02" = 2002
"01" = 2001
X X X X X X
~
Blank: normal
L: Lead Free Package
(3) SOP-8L
A C
1118 -XX
1118-XX: Voltage
1118-15: 1.5V
1118-18: 1.8V
1118-25: 2.5V
1118-33: 3.3V
1118-50: 5.0V
1118-50: 9.0V
1118-12: 12V
Logo
ID Code
Xth week: 01~52
(Top view)
XX XX X X
Year: "2" = 2002
"1" = 2001
~
Blank: normal
L: Lead Free Package
AP1118
1A Positive Low Dropout Fixed-Mode Regulator With EN Function
Anachip Corp.
www.anachip.com.tw Rev.0.2 Feb. 10, 2004
7/10
Package Dimension
(1) TO220-5
D
Q
E
b
e1
A
J1
F
C
Φ
P
H1
L
e
Dimensions In Millimeters Dimensions In Inches
Symbol Min. Nom. Max. Min. Nom. Max.
A 4.07
4.45 4.82 0.160 0.175 0.190
b 0.76 0.89 1.02 0.030 0.035 0.040
C 0.36 0.50 0.64 0.014
0.020 0.025
D 14.22 14.86 15.50
0.560 0.585 0.610
E 9.78 10.16 10.54 0.385 0.400 0.415
e 1.57 1.71 1.85 0.062 0.067 0.073
e1 6.68 6.81 6.93 0.263 0.268 0.273
F 1.14 1.27 1.40 0.045 0.050 0.055
H1 5.46 6.16 6.86 0.215 0.243 0.270
J1 2.29 2.74 3.18 0.090 0.108 0.125
L 13.21 13.97 14.73 0.520 0.550 0.580
Øp 3.68 3.81 3.94 0.145 0.150 0.155
Q 2.54 2.73 2.92 0.100 0.107 0.115
AP1118
1A Positive Low Dropout Fixed-Mode Regulator With EN Function
Anachip Corp.
www.anachip.com.tw Rev.0.2 Feb. 10, 2004
8/10
(2) TO252-5
A
B
M
CD
S
G
P(TYP.)
H
J
L
K
Dimensions In Millimeters Dimensions In Inches
Symbol Min. Nom. Max. Min. Nom. Max.
A 6.35 6.60 6.85
0.250 0.260 0.270
B 5.20 5.35 5.50
0.205 0.211 0.217
C 6.80 7.00 7.20 0.268
0.276 0.283
D 2.20 2.50 2.80 0.087 0.098 0.110
P 1.27 REF. 0.050 REF.
S 0.50 0.65 0.80 0.020 0.026 0.031
G 0.40 0.50 0.60
0.016 0.020 0.024
H 2.20 2.30 2.40 0.087
0.091 0.094
J 0.46 0.52 0.58 0.018 0.020 0.023
K 0.00 0.08 0.15 0.000
0.003 0.006
L 0.90 1.20 1.50 0.035 0.047 0.059
M 5.40 5.50 5.59 0.213 0.216 0.220
AP1118
1A Positive Low Dropout Fixed-Mode Regulator With EN Function
Anachip Corp.
www.anachip.com.tw Rev.0.2 Feb. 10, 2004
9/10
(3) TO263-5
A
C2
C
E
L2
eB
D
L
F
L1
Dimensions In Millimeters Dimensions In Inches
Symbol Min. Nom. Max. Min. Nom. Max.
A 4.07 4.46 4.85 0.160 0.176 0.191
B 0.66 0.84 1.02 0.026 0.033 0.040
C 0.36 0.50 0.64 0.014 0.020 0.025
C2 1.14 1.27 1.40 0.045 0.050 0.055
D 8.65 9.15 9.65 0.341 0.360 0.380
E 9.78 10.16 10.54 0.385 0.400 0.415
e 1.57 1.71 1.85
0.062 0.068 0.073
F 6.60 6.86 7.11
0.260 0.270 0.280
L 14.61 15.24 15.88 0.575 0.600 0.625
L1 2.29 2.54 2.79 0.090 0.100 0.110
L2 - - 2.92 - - 0.115
AP1118
1A Positive Low Dropout Fixed-Mode Regulator With EN Function
Anachip Corp.
www.anachip.com.tw Rev.0.2 Feb. 10, 2004
10/10
(4) SOP-8
VIEW "A"
L
C
VIEW "A"
H
E
A
A2
A1
B
e
D
7(4X) 0.015x45 7(4X)
y
Dimensions In Millimeters Dimensions In Inches
Symbol Min. Nom. Max. Min. Nom. Max.
A 1.40 1.60 1.75 0.055 0.063 0.069
A1 0.10 - 0.25 0.040 - 0.100
A2 1.30 1.45 1.50 0.051 0.057 0.059
B 0.33 0.41 0.51 0.013 0.016 0.020
C 0.19 0.20 0.25 0.0075 0.008 0.010
D 4.80 5.05 5.30 0.189 0.199 0.209
E 3.70 3.90 4.10 0.146 0.154 0.161
e - 1.27 - - 0.050 -
H 5.79 5.99 6.20 0.228 0.236 0.244
L 0.38 0.71 1.27 0.015 0.028 0.050
y - - 0.10 - - 0.004
θ 0O - 8O 0
O - 8O
