AP1115
0.6A Low Dropout Positive Adjustable or Fixed-Mode Regulator
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
Features
• 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
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.
Connection Diagram (Top View)
Adj (GND)
AP1115B-3 PIN SOT89
Vout
Vin
Tab is Pin2
Adj (GND)
AP1115A-3 PIN SOT89
Vout
Vin
Tab is Pin2
1
2
3
1
2
3
AP1115A-3 PIN TO92
1 Vin
2 GND
3 Vout
AP1115B-3 PIN TO92
1 GND
2 Vin
3 Vout
Pin Descriptions
NAME I/O FUNCTION
Adj
(GND) I A resistor divider from this pin to the Vout pin and ground sets the output voltage.
(Ground only for Fixed-Mode)
Vout O
The output of the regulator. A minimum of 10uF capacitor must be connected from
this pin to ground to insure stability.
Vin I
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.
AP1115
0.6A Low Dropout Positive Adjustable or Fixed-Mode Regulator
Anachip Corp.
www.anachip.com.tw Rev.1.0 May.19, 2004
2/7
Ordering Information
AP 1115
X
X
X
X
X
X
Low Dropout Regulator
Package Vout
Y : SOT89-3L
V : TO92-3L
Blank : ADJ
15 : 1.5V
18 : 1.8V
25 : 2.5V
28 : 2.8V
30 : 3.0V
33 : 3.3V
50 : 5.0V
Packing
Blank : Tube
A : Taping
Lead Free
Blank : Normal
L : Lead Free Package
Pin Version
A: Pin1:Vout
2:Adj(GND)
3:Vin
B: Pin1:Adj(GND)
2:Vin
3:Vout
Typical Circuit
C2
100uF
5V
3.3V/0.5A
Vin
Vout
GND
C1
100uF
AP1115A (5V/3.3V fixed output)
)
1
2
REFoR
R
(1 VV +∗=
Note:
Vin
Vout
GND
AP1115B (5V/3.3V fixed output)
5V
C1
100uF
C2
100uF
3.3V/0.5A
R1
121O
R2
121O
C2
100uF
5V
2.5V/0.5A
Vin
Vout
Adj
C1
100uF
V
O
AP1115A (5V/2.5V Adj output)
R2
121O
R1
121O
C2
100uF
5V
2.5V/0.5A
Vin
Vout
Adj
C1
100uF
V
O
AP1115B (5V/2.5V Adj output)
AP1115
0.6A Low Dropout Positive Adjustable or Fixed-Mode Regulator
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
Absolute Maximum Ratings
Symbol Parameter Rating Unit
VIN DC Supply Voltage -0.3 to 18 V V
PD Power Dissipation Internally Limited
TST Storage Temperature -65 to +150 oC
TOP Operating Junction Temperature Range 0 to +150 oC
Electrical Characteristics (Under Operating Conditions)
PARAMETER CONDITIONS MIN TYP MAX UNIT
Reference Voltage AP1115-ADJ TJ=25oC,(VIN-OUT)=1.5V
IO=10mA 1.225 1.250 1.275 V
AP1115-1.5 IOUT = 10mA, TJ = 25oC,
3V≦VIN≦12V 1.470 1.500 1.530 V
AP1115-1.8 IOUT = 10mA, TJ = 25oC,
3.3V≦VIN≦12V 1.764 1.800 1.836 V
AP1115-2.5 IOUT = 10mA, TJ = 25oC,
4V≦VIN≦12V 2.450 2.500 2.550 V
AP1115-2.8 IOUT = 10mA, TJ = 25oC,
4.3V≦VIN≦12V 2.744 2.800 2.856 V
AP1115-3.0 IOUT = 10mA, TJ = 25oC,
4.5V≦VIN≦12V 2.940 3.000 3.060 V
AP1115-3.3 IOUT = 10mA, TJ = 25oC,
4.8V≦VIN≦12V 3.235 3.300 3.365 V
Output Voltage
AP1115-5.0 IOUT = 10mA, TJ = 25oC,
6.5V≦VIN≦12V 4.900 5.000 5.100 V
Line Regulation AP1115-XXX IO=10mA,VOUT+1.5V<VIN<15V,
TJ=25oC - - 0.2 %
AP1115-ADJ VIN=3.3V,Vadj=0,0mA<Io<0.6A,
TJ=25oC (Note 1,2) - - 1 %
AP1115-1.5 VIN=3V, 0mA<Io<0.6A,
TJ=25oC (Note 1,2) - 12 15 mV
AP1115-1.8 VIN=3.3V, 0mA<Io<0.6A,
TJ=25oC (Note 1,2) - 15 18 mV
AP1115-2.5 VIN=4V, 0mA<Io<0.6A,
TJ=25oC (Note 1,2) - 20 25 mV
AP1115-2.8 VIN=4.3V, 0mA<Io<0.6A,
TJ=25oC (Note 1,2) - 22 28 mV
AP1115-3.0 VIN =5V, 0≦IOUT≦0.6A,
TJ=25oC (Note 1,2) - 23 30 mV
AP1115-3.3 VIN =5V, 0≦IOUT≦0.6A,
TJ=25oC (Note 1,2) - 26 33 mV
Load Regulation
AP1115-5.0 VIN =8V, 0≦IOUT≦0.6A,
TJ=25oC (Note 1,2) - 40 50 mV
Dropout Voltage
(VIN-VOUT)
AP1115-ADJ/1.5/1.8
2.5/2.8/3.0/3.3/5.0 IOUT = 0.6A, ∆VOUT=0.1%VOUT - 1.1 1.3 V
Current Limit AP1115-ADJ/1.5/1.8
2.5/2.8/3.0/3.3/5.0 (VIN-VOUT) = 5V 0.7 - - A
Minimum Load Current AP1115-XXX 0oC≦Tj≦125oC - 5 10 mA
Thermal Regulation TA=25 oC, 30ms pulse - 0.008 0.04 %/W
AP1115
0.6A Low Dropout Positive Adjustable or Fixed-Mode Regulator
Anachip Corp.
www.anachip.com.tw Rev.1.0 May.19, 2004
4/7
Electrical Characteristics (Continued) (Under Operating Conditions)
F=120Hz,COUT=25uF Tantalum, IOUT=0.6A
Ripple Rejection AP1115-XXX VIN=VOUT+3V - 60 70 dB
Temperature Stability IO=10mA - 0.6 - %
SOT89 - 300 -
JA
θ
Thermal Resistance Junction-to-Ambient (No
heat sink; No air flow) TO92 - 160 -
oC/W
JC
θ
SOT89: Control Circuitry/Power Transistor
Thermal Resistance Junction-to-Case - 100
-
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 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
132
Date Code
Month: A~L
Year: 0~9
Identification Code
( See the table )
Blank: normal
L: Lead Free Packag
e
XX
XX X
SOT89-3
Identification Code
Part Number
Output
version AP1115A AP1115B
ADJ JO JU
1.5V JP JV
1.8V JQ JW
2.5V JR JX
2.8V JC JD
3.0V JM JN
3.3V JS JY
5.0V JT JZ
Year: "1"=2001
"2"=2002
Xth Week: 01~52
1115
Internal code: Blank or A~Z
Part Number: AP1115
Output voltage
A: A version
B: B version
Blank: ADJ
15:1.5V
18:1.8V
25:2.5V
28:2.8V
30:3.0V
33:3.3V
50:5.0V
X XX
YWWX X
(Top View)
TO92
123
Blank: normal
L: Lead Free Package
AP1115
0.6A Low Dropout Positive Adjustable or Fixed-Mode Regulator
Anachip Corp.
www.anachip.com.tw Rev.1.0 May.19, 2004
5/7
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
0100 200 300 400
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=600mA
500 600
AP1115
0.6A Low Dropout Positive Adjustable or Fixed-Mode Regulator
Anachip Corp.
www.anachip.com.tw Rev.1.0 May.19, 2004
6/7
Package Information
(1) Package Type: SOT89-3L
c
5
0
(2x)
L
HE
E
D1
e1
e
A
D
b1
bb
8
0
(2x)
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 0.63 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 2.40 2.50 2.60 0.094 0.098 0.102
HE 3.94 - 4.25 0.155 - 0.167
L 0.80 - 1.20 0.031 - 0.047
AP1115
0.6A Low Dropout Positive Adjustable or Fixed-Mode Regulator
Anachip Corp.
www.anachip.com.tw Rev.1.0 May.19, 2004
7/7
(2) Package Type: TO92-3L
Db
b
1
b
EL
e
A
1
A
Dimensions In Millimeters Dimensions In Inches
Symbol Min. Nom. Max. Min. Nom. Max.
A 3.302 3.556 3.810 0.130 0.140 0.150
A1 1.016 - - 0.040 - -
b 0.330 0.381 0.432 0.013 0.015 0.017
b1 0.406 0.457 0.506 0.016 0.018 0.020
D 4.445 4.572 4.699 0.175 0.180 0.185
E 4.445 4.572 4.699 0.175 0.180 0.185
L 13.00 - 15.50 0.512 - 0.610
e 1.150 1.270 1.390 0.045 0.050 0.055
