150mA RF ULDO REGULATOR AP2201
Preliminary Datasheet
1
Jun. 2005 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
SOT-23-5
Figure 2. Package Type of AP2201
Figure 1. Typical Application of AP2201
General Description
The AP2201 is a 150mA output current fixed voltage
regulator designed to provide very low noise (45
Vrms
at 80Hz-100KHz), ultra low dropout voltage (typically
165mV at 150mA), very low quiescent current (1
A
maximum) and excellent power supply ripple rejection
(PSRR 75dB at 100Hz) in battery powered applica-
tions, such as handsets and PDAs and in noise sensitive
applications, such as RF electronics.
The AP2201 also features individual logic compatible
enable/shutdown control inputs, a low power shutdown
mode for extended battery life, over current protection,
over temperature protection, as well as reversed-bat-
tery protection.
The output capacitor of 1.0
F minimum and 2.2
F
minimum near its pin are recommended when C
BYP
is
not used and when C
BYP
is 470pF respectively. The
output capacitor should have 5
or less ESR, tantalum
or aluminium electrolytic capacitors are adequate.
Bypass capacitor is connected to the internal voltage
reference to quiet noise. Its recommended value is
from 470pF to 1nF. If output noise is not a major con-
cern and rapid turn-on is necessary, omit C
BYP
and
leave BYP open.
The AP2201 has 2.6V, 2.8V and 3.0V versions now.
The AP2201 is available in space saving 5-pin SOT-
23-5 package.
Features
Up to 150mA Regulator Output
Low Quiescent Current
Low Dropout Voltage: V
D
=165mV at 150mA
High Precision Output Voltage: 1%
Output Noise: 45
Vrms at 80Hz-100KHz
Good Ripple Rejection Ability: 75dB at 100Hz
and I
OUT
=100
A
Tight Load and Line Regulation
Low Temperature Coefficient
Over Current Protection
Thermal Protection
Reverse-battery Protection
Zero Off-mode Current
Logic-controlled Enable
Applications
Cellular Phones
Cordless Phones
Digital Still Cameras
Wireless Communicators
PDAs / Palmtops
PC Mother Board
Consumer Electronics
BYP
C
BYP
470pF
EN
GND
V
OUT
C
OUT
+
V
IN
AP2201-2.8
V
IN
=3.8V
V
OUT
=2.8V
V
OUT
V
IN
2.2
F
C
IN
1.0
F
tantalum
150mA RF ULDO REGULATOR AP2201
Preliminary Datasheet
2
Jun. 2005 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
Figure 3. Pin Configuration
of AP2201 (Top View)
(SOT-23-5)
K Package
Pin Configuration
BYP
GND
EN
V
OUT
V
IN
Pin Description
Pin Number
Pin Name
Function
1
EN
Logic high enable input.
2
GND
Ground.
3
BYP
Bypass capacitor for low noise operation.
4
V
OUT
Regulated output voltage.
5
V
IN
Input voltage.
1
3
4
5
2
150mA RF ULDO REGULATOR AP2201
Preliminary Datasheet
3
Jun. 2005 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
+
-
Bandgap
Ref.
Current Limit
Thermal Shutdown
V
IN
BYP
EN
GND
V
OUT
Figure 4. Functional Block Diagram of AP2201
Ordering Information
Functional Block Diagram
3
4
1
2
5
Circuit Type
Package
K: SOT-23-5
2.6: Fixed Output 2.6V
E1: Lead Free
Blank: Tin Lead
AP2201 -
TR: Tape and Reel
2.8: Fixed Output 2.8V
3.0: Fixed Output 3.0V
150mA RF ULDO REGULATOR AP2201
Preliminary Datasheet
4
Jun. 2005 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
Parameter
Symbol
Value
Unit
Supply Input Voltage
V
IN
15
V
Enable Input Voltage
V
EN
15
V
Power Dissipation
P
D
Internally Limited
W
Lead Temperature (Soldering, 5sec)
T
LEAD
260
o
C
Storage Temperature
T
STG
-65 to 150
o
C
ESD (Machine Model)
200
V
Thermal Resistance
JA
(Note 2)
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.
Absolute Maximum Ratings (Note
1
)
Parameter
Symbol
Min
Max
Unit
Supply Input Voltage
V
IN
2.5
13.2
V
Enable Input Voltage
V
EN
0
13.2
V
Operating Junction Temperature
T
J
-40
125
o
C
Recommended Operating Conditions
Note 2: Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifica-
tions do not apply when operating the device outside of its operating ratings. The maximum allowable power dissipation is a
function of the maximum junction temperature, T
J(max),
the junction-to-ambient thermal resistance,
JA,
and the ambient tem-
perature, T
A.
The maximum allowable power dissipation at any ambient temperature is calculated using: P
D(max)
=(T
J(max)
-
T
A
)/
JA.
Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the regulator will
go into thermal shutdown.
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
AP2201K-2.6TR
AP2201K-2.6TRE1
K1E
E1E
Tape & Reel
AP2201K-2.8TR
AP2201K-2.8TRE1
K1G
E1G
Tape & Reel
AP2201K-3.0TR
AP2201K-3.0TRE1
K1I
E1I
Tape & Reel
Ordering Information (Continued)
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.
150mA RF ULDO REGULATOR AP2201
Preliminary Datasheet
5
Jun. 2005 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Output Voltage Accuracy
V
O
/V
O
Variation from specified
V
OUT
-1
1
%
-2
2
Output Voltage
Temperature Coefficient
V
O
/
T
(Note 3)
120
V/
o
C
Line Regulation
V
RLINE
AP2201-2.6V
V
IN
= V
OUT
+1V to 13.2V
1
3
mV
13
AP2201-2.8V
V
IN
= V
OUT
+1V to 13.2V
1
4
14
AP2201-3.0V
V
IN
= V
OUT
+1V to 13.2V
1
4
14
Load Regulation (Note 4)
V
RLOAD
AP2201-2.6V
I
OUT
= 0.1mA to 150mA
1
8
mV
16
AP2201-2.8V
I
OUT
= 0.1mA to 150mA
1
9
18
AP2201-3.0V
I
OUT
= 0.1mA to 150mA
1
9
18
Dropout Voltage (Note 5)
V
IN
-V
O
I
OUT
=100
A
15
50
mV
70
I
OUT
=50mA
110
150
230
I
OUT
=100mA
140
250
300
I
OUT
=150mA
165
275
350
Quiescent Current
I
Q
V
EN
0.4V (shutdown)
0.01
1
A
V
EN
0.18V (shutdown)
5
Ground Pin Current (Note 6)
I
GND
V
EN
2.0V, I
OUT
=0
A
180
245
A
265
V
EN
2.0V, I
OUT
=100
A
182
250
270
V
EN
2.0V, I
OUT
=50mA
350
600
800
V
EN
2.0V, I
OUT
=100mA
600
1000
1500
Electrical Characteristics
V
IN
=V
OUT
+1V, I
OUT
= 100
A, C
L
= 2.2
F, V
EN
2.0V, T
J
= 25
o
C, Bold typeface applies over -40
o
C<T
J
<125
o
C, unless other-
wise specified.
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