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300mA FIXED OUTPUT VOLTAGE LDO REGULATOR AP2115
Preliminary Datasheet
1
Oct. 2005 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
General Description
The AP2115 is positive voltage regulator IC designed
by CMOS process. The AP2115 has features of low
dropout voltage, high output voltage accuracy and low
current consumption. It consists of a voltage reference,
an error amplifier, a resistor network for setting output
voltage, a current limit circuit for current protection, a
circuit for over temperature protection and a chip
enable circuit. Thus, the AP2115 is suitable for various
power sources for portable application.
The AP2115 is available in standard SOT-23-5 pack-
age.
Features
High Ripple Rejection: 70dB at f=1KHz
Ultra Low Dropout Voltage: 0.3V Typical at
I
OUT
=300mA
Low Operation Current: 80
A Typical
High Line Regulation: 4mV Typical
High Load Regulation: 12mV Typical at
I
OUT
=300mA
Low Temperature-drift Coefficient of Output
Voltage
High Output Voltage Accuracy:
2%
Excellent Line Transient Response and Load
Transient Response
Output Voltage: 1.8V, 2.5V, 2.8V, 3.0V, 3.3V
Low ESR Capacitor Compatible
Wide Temperature Range: -40
o
C to 125
o
C
Current and Thermal Protection
Application
Mobile Phones, Cordless Phones
Portable Games
Cameras
Portable AV Equipment
Battery Powered Equipment
SOT-23-5
Figure 1. Package Type of AP2115
300mA FIXED OUTPUT VOLTAGE LDO REGULATOR AP2115
Preliminary Datasheet
2
Oct. 2005 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
Figure 2. Pin Configuration of AP2115 (Top View)
K Package
(SOT-23-5)
Pin Configuration
1
2
3
4
5
V
OUT
GND
NC
CE/CE
Pin Description
Pin Number
Pin Name
Function
1
V
OUT
Voltage regulator output pin
2
GND
Ground pin
3
V
IN
Input voltage pin
4
CE/CE
Active high/low enable input pin (active high for AP2115B)
5
NC
No connection
V
IN
300mA FIXED OUTPUT VOLTAGE LDO REGULATOR AP2115
Preliminary Datasheet
3
Oct. 2005 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
Functional Block Diagram
+
-
Error
Amplifier
Voltage
Reference
Over-Current
Protection
Over-Temperature
Protection
V
IN
CE/CE
3
4
V
OUT
GND
1
2
Active High Version
Figure 3. Functional Block Diagram of AP2115
Ordering Information
Circuit Type
Package
K: SOT-23-5
1.8: Fixed Output 1.8V
2.5: Fixed Output 2.5V
E1: Lead Free
Blank: Tin Lead
AP2115
TR: Tape and Reel
-
2.8: Fixed Output 2.8V
3.0: Fixed Output 3.0V
3.3: Fixed Output 3.3V
B: Active High
(No Pull-down resistor built-in)
300mA FIXED OUTPUT VOLTAGE LDO REGULATOR AP2115
Preliminary Datasheet
4
Oct. 2005 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
Package
Temperature
Range
Part Number
Marking ID
Packing Type
Tin Lead
Lead Free
Tin Lead
Lead Free
SOT-23-5
-40 to 125
o
C
AP2115BK-1.8TR
AP2115BK-1.8TRE1
K7B
E7B
Tape & Reel
AP2115BK-2.5TR
AP2115BK-2.5TRE1
K7D
E7D
Tape & Reel
AP2115BK-2.8TR
AP2115BK-2.8TRE1
K7F
E7F
Tape & Reel
AP2115BK-3.0TR
AP2115BK-3.0TRE1
K7H
E7H
Tape & Reel
AP2115BK-3.3TR
AP2115BK-3.3TRE1
K7J
E7J
Tape & Reel
Parameter
Symbol
Min
Max
Unit
Input Voltage (Note 3)
V
IN
2.2
6.5
V
Operating Junction Temperature Range
T
J
-40 125
o
C
Note 1:
Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device.
These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated
under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods
may affect device reliability.
Note 2: All voltage values are with respect to network ground terminal.
Absolute Maximum Ratings (Note 1)
Parameter
Symbol
Value
Unit
Input Voltage (Note 2)
V
IN
-0.3 to 8
V
Input Voltage (CE/CE Pin)
V
SHDN
-0.3 to V
IN
+0.3
V
Output Voltage
V
OUT
-0.3 to V
IN
+0.3
V
Output Current
I
OUT
500
mA
Power Dissipation
P
D
250
mW
Storage Temperature Range
T
STG
-65 to 150
o
C
Lead Temperature (Soldering, 10sec)
T
LEAD
300
o
C
ESD (Machine Model)
ESD
200
V
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.
Ordering Information (Continued)
Note 3: To calculate the minimum input voltage for maximum output current, the following formula is recommended:
V
IN(Min)
=V
OUT(Max)
+V
DROP(Max load)
Recommended Operating Conditions
300mA FIXED OUTPUT VOLTAGE LDO REGULATOR AP2115
Preliminary Datasheet
5
Oct. 2005 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Output Voltage
V
OUT
1mA
I
OUT
30mA
1.764
1.8
1.836
V
Output Current
I
OUT
300
mA
Current Limit
500
mA
Quiescent Current
80
150
A
Ground Pin Current
I
GND
I
OUT
=300mA
90
150
A
Dropout Voltage
(Note 4)
V
DROP
I
OUT
=1mA
400
600
mV
I
OUT
=50mA
400
600
I
OUT
=200mA
400
600
I
OUT
=300mA
600
900
Load Regulation
V
RLOAD
1mA
I
OUT
300mA
7.2
18
mV
Line Regulation
V
RLINE
V
OUT
+0.5V
V
IN
6V
I
OUT
=30mA
4
15
mV
CE/CE Input High
Threshold
V
IH
1.5
V
CE/CE Input Low
Threshold
V
IL
0.4
V
CE/CE Bias Current
I
SD
100
nA
Shutdown Supply Current
I
GSD
V
OUT
=0V
0.1
1
A
Thermal Shutdown
Temperature
T
SD
165
o
C
Power Supply
Ripple Rejection
PSRR
Ripple 0.5V
P-P
f=1kHz, I
OUT
=30mA
70
dB
Output Voltage Temperature
Coefficient
V
OUT
/
T
I
OUT
=30mA
-40
o
C
T
J
125
o
C
180
V/
o
C
Short Current Limit
I
LIMIT
V
OUT
=0V
450
mA
Turn-on Time (Note 5)
T
ON
60
s
RMS Output Noise
V
NOISE
T
A
=25
o
C
10Hz
f100kHz
200
Vrms
V
IN
=V
OUT
+1V, T
A
=25
o
C, C
IN
=1
F, C
L
=1
F, unless otherwise specified.
Electrical Characteristics
AP2115-1.8V Electrical Characteristics
Note 4: Dropout voltage is defined as the input-to-output differential when the output voltage drops to 98% of its nominal
value which is measured at V
OUT
+1V applied to V
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