AP2203K-3.3TRE1 [BCDSEMI]
150mA RF ULDO REGULATOR WITH ERROR FLAG; 与错误标志150毫安RF ULDO稳压器
| 型号： | AP2203K-3.3TRE1 |
| 厂家： | 
BCD SEMICONDUCTOR MANUFACTURING LIMITED |
| 描述： | 150mA RF ULDO REGULATOR WITH ERROR FLAG |
| 文件： | 总19页 (文件大小：158K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Preliminary Datasheet
150mA RF ULDO REGULATOR WITH ERROR FLAG
AP2203
General Description
Features
The AP2203 is a 150mA ULDO regulator, which pro-
vides ultra low dropout voltage (typically 165mV at
150mA), very low quiescent current (1µA maximum)
in shutdown mode and excellent power supply ripple
rejection (PSRR 75dB at 100Hz) in battery powered
applications, such as handsets and PDAs and in noise
sensitive applications, such as RF electronics.
·
Error Flag to Indicate Undervoltage Fault
Up to 150mA Regulator Output
Low Quiescent Current
·
·
·
Low Dropout Voltage: V
=165mV at 150mA
DROP
·
·
High Output Accuracy: ±1%
Good Ripple Rejection Ability: 75dB at 100Hz
and I =100µA
OUT
The AP2203 also features an undervoltage monitor
with an error flag output, logic compatible enable/shut-
down control inputs, a low power shutdown mode for
extended battery life, over current protection, over
temperature protection as well as reversed-battery pro-
tection.
·
·
·
·
·
·
·
Tight Load and Line Regulation
Low Temperature Coefficient
Over Current Protection
Thermal Protection
Reverse-battery Protection
Zero Off-mode Current
Logic-controlled Enable
The AP2203 has 2.5V, 3.0V and 3.3V versions.
The AP2203 is available in space saving 5-pin SOT-
23-5 package.
Applications
·
·
·
·
·
Cellular Phones
Cordless Phones
Wireless Communicators
PDAs / Palmtops
Consumer Electronics
SOT-23-5
Figure 1. Package Type of AP2203
Mar. 2006 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
1
Preliminary Datasheet
150mA RF ULDO REGULATOR WITH ERROR FLAG
AP2203
Pin Configuration
K Package
(SOT-23-5)
VIN
VOUT
1
2
3
5
4
GND
EN
FLAG
Figure 2. Pin Configuration of AP2203 (Top View)
Pin Description
Pin Number
Pin Name
Function
1
VIN
Input voltage
2
3
GND
EN
Ground
Enable input: CMOS or TTL compatible input. Logic high=enable, logic
low=shutdown
4
5
FLAG
VOUT
Error flag (Output pin): Open-collector output. Active low indicates an output
undervoltage condition
Regulated output voltage
Mar. 2006 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
2
Preliminary Datasheet
150mA RF ULDO REGULATOR WITH ERROR FLAG
AP2203
Functional Block Diagram
1
5
V
V
OUT
IN
R1
R2
+
4
FLAG
-
+
BANDGAP
-
REF
3
EN
CURRENT LIMIT
THERMAL SHUTDOWN
2
GND
Figure 3. Functional Block Diagram of AP2203
Mar. 2006 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
3
Preliminary Datasheet
150mA RF ULDO REGULATOR WITH ERROR FLAG
AP2203
Ordering Information
AP2203
-
E1: Lead Free
Blank: Tin Lead
Circuit Type
TR: Tape and Reel
Package
2.5: Fixed Output 2.5V
3.0: Fixed Output 3.0V
3.3: Fixed Output 3.3V
K: SOT-23-5
Part Number
Marking ID
Temperature
Packing
Type
Package
Range
Tin Lead
Lead Free
Tin Lead
Lead Free
E3C
Tape & Reel
AP2203K-2.5TR
AP2203K-3.0TR
AP2203K-3.3TR
AP2203K-2.5TRE1 K3C
AP2203K-3.0TRE1 K3F
AP2203K-3.3TRE1 K3G
-40 to 125oC
SOT-23-5
E3F
Tape & Reel
Tape & Reel
E3G
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.
Mar. 2006 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
4
Preliminary Datasheet
150mA RF ULDO REGULATOR WITH ERROR FLAG
AP2203
Absolute Maximum Ratings (Note 1)
Parameter
Symbol
Value
Unit
Supply Input Voltage
VIN
15
V
Enable Input Voltage
Power Dissipation
VEN
PD
15
V
Internally Limited (Thermal Protection)
260
W
oC
Lead Temperature (Soldering, 5sec)
Storage Temperature
TLEAD
TSTG
-65 to 150
300
oC
V
ESD (Machine Model)
oC/W
Thermal Resistance (No Heatsink)
θJA
200
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.
Recommended Operating Conditions
Parameter
Symbol
Min
Max
Unit
Supply Input Voltage
VIN
2.5
13.2
V
Enable Input Voltage
VEN
TJ
0
13.2
125
V
oC
Operating Junction Temperature
-40
Mar. 2006 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
5
Preliminary Datasheet
150mA RF ULDO REGULATOR WITH ERROR FLAG
AP2203
Electrical Characteristics
AP2203-2.5V Electrical Characteristics
VIN=3.5V, IOUT=100
µA, COUT=2.2µF, VEN≥
2.0V, TJ=25oC, Bold typeface applies over -40oC<TJ<125oC (note 2), unless other-
wise specified.
Parameter
Symbol
Conditions
Min
-1
Typ
120
Max
Unit
1
∆VOUT/VOUT
Variation from specified VOUT
Output Voltage Accuracy
%
-2
2
µV/oC
ppm/oC
mV
∆VOUT/∆T
Output Voltage
Temperature Coefficient
(Note 3)
(∆VOUT/VOUT)/∆T
48
1.5
4.5
12
VRLINE
VIN=3.5V to 13.2V
Line Regulation
Load Regulation
IOUT=0.1mA to 150mA
(Note 4)
1
6
VRLOAD
mV
mV
µA
µA
15
15
50
IOUT=100µA
70
110
140
165
0.01
100
350
600
1300
150
230
250
300
275
350
1
I
I
OUT=50mA
Dropout Voltage
(Note 5)
VDROP
OUT=100mA
IOUT=150mA
VEN ≤ 0.4V (shutdown)
VEN ≤ 0.18V (shutdown)
IQ
Quiescent Current
5
150
180
600
800
1000
1500
1900
2500
VEN ≥ 2.0V, IOUT=100µA
VEN ≥ 2.0V, IOUT=50mA
VEN ≥ 2.0V, IOUT=100mA
VEN ≥ 2.0V, IOUT=150mA
Ground Pin Current
(Note 6)
IGND
Ripple Rejection
Current Limit
PSRR
ILIMIT
frequency=100Hz, IOUT=100µA
75
dB
VOUT=0V
450
650
mA
Mar. 2006 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
6
Preliminary Datasheet
150mA RF ULDO REGULATOR WITH ERROR FLAG
AP2203
Electrical Characteristics (Continued)
AP2203-2.5V Electrical Characteristics
VIN=3.5V, IOUT=100
µA, COUT=2.2µF, VEN≥
2.0V, TJ=25oC, Bold typeface applies over -40oC<TJ<125oC (note 2), unless other-
wise specified.
Parameter
Symbol
Conditions
Min
2.0
Typ
Max
0.4
Unit
Enable Input Logic-low
Voltage
VIL
Regulator shutdown
V
0.18
Enable Input Logic-high Voltage
Enable Input Logic-low Current
VIH
IIL
Regulator enabled
VIL≤ 0.4V
V
0.01
5
-1
-2
µA
VIL≤ 0.18V
VIL≥ 2.0V
20
25
IIH
Enable Input Logic-high Current
Flag Threshold
µA
VIL≥ 2.0V
Undervoltage condition
(below nominal) (Note 7)
VERR
-10
-6
-2
%
Output Logic-low Voltage
(Note 8)
IFL=1mA
VOL
IFL
0.2
0.1
0.4
V
Undervoltage condition
Flag Leakage Current
Flag off, VFLAG=0V to 13.2V
-0.1
1
µA
Note 2: Specifications in bold type are limited to -40oC<TJ<125oC. Limits over temperature are guaranteed by design, but not
tested in production.
Note 3: Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature
range.
Note 4: Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load
regulation in the load range from 0.1mA to 150mA. Changes in output voltage due to heating effects are covered by the thermal
regulation specification.
Note 5: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal
value measured at 1V differential.
Note 6: Ground pin current is the regulator quiescent current plus pass transistor base current. The total current drawn from the
supply is the sum of the load current plus the ground pin current.
Note 7: The error flag comparator includes 2.5% hysteresis.
Note 8: The FLAG pin will be enabled if EN pin voltage is high, and disabled if EN pin voltage is low.
Mar. 2006 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
7
Preliminary Datasheet
150mA RF ULDO REGULATOR WITH ERROR FLAG
AP2203
Electrical Characteristics (Continued)
AP2203-3.0V Electrical Characteristics
VIN=4V, IOUT=100
µA, COUT=2.2µF, VEN≥
2.0V, TJ=25oC, Bold typeface applies over -40oC<TJ<125oC (note 2), unless other-
wise specified.
Parameter
Symbol
Conditions
Min
-1
Typ
120
Max
Unit
1
∆VOUT/VOUT
Variation from specified VOUT
Output Voltage Accuracy
%
-2
2
µV/oC
ppm/oC
mV
∆VOUT/∆T
Output Voltage
Temperature Coefficient
(Note 3)
(∆VOUT/VOUT)/∆T
40
1.5
4.5
12
VRLINE
VIN=4V to 13.2V
Line Regulation
Load Regulation
IOUT=0.1mA to 150mA
(Note 4)
1
6
VRLOAD
mV
mV
µA
µA
15
15
50
IOUT=100µA
70
110
140
165
0.01
100
350
600
1300
150
230
250
300
275
350
1
I
I
OUT=50mA
Dropout Voltage
(Note 5)
VDROP
OUT=100mA
IOUT=150mA
VEN ≤ 0.4V (shutdown)
VEN ≤ 0.18V (shutdown)
IQ
Quiescent Current
5
150
180
600
800
1000
1500
1900
2500
VEN ≥ 2.0V, IOUT=100µA
VEN ≥ 2.0V, IOUT=50mA
VEN ≥ 2.0V, IOUT=100mA
VEN ≥ 2.0V, IOUT=150mA
Ground Pin Current
(Note 6)
IGND
Ripple Rejection
Current Limit
PSRR
ILIMIT
frequency=100Hz, IOUT=100µA
75
dB
VOUT=0V
450
650
mA
Mar. 2006 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
8
Preliminary Datasheet
150mA RF ULDO REGULATOR WITH ERROR FLAG
AP2203
Electrical Characteristics (Continued)
AP2203-3.0V Electrical Characteristics
VIN=4V, IOUT=100
µA, COUT=2.2µF, VEN≥
2.0V, TJ=25oC, Bold typeface applies over -40oC<TJ<125oC (note 2), unless other-
wise specified.
Parameter
Symbol
Conditions
Min
2.0
Typ
Max
0.4
Unit
Enable Input Logic-low
Voltage
VIL
Regulator shutdown
V
0.18
Enable Input Logic-high Voltage
Enable Input Logic-low Current
VIH
IIL
Regulator enabled
VIL≤ 0.4V
V
0.01
5
-1
-2
µA
VIL≤ 0.18V
VIL≥ 2.0V
20
25
IIH
Enable Input Logic-high Current
Flag Threshold
µA
VIL≥ 2.0V
Undervoltage condition
(below nominal) (Note 7)
VERR
-10
-6
-2
%
Output Logic-low Voltage
(Note 8)
IFL=1mA
VOL
IFL
0.2
0.1
0.4
V
Undervoltage condition
Flag Leakage Current
Flag off, VFLAG=0V to 13.2V
-0.1
1
µA
Note 2: Specifications in bold type are limited to -40oC<TJ<125oC. Limits over temperature are guaranteed by design, but not
tested in production.
Note 3: Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature
range.
Note 4: Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load
regulation in the load range from 0.1mA to 150mA. Changes in output voltage due to heating effects are covered by the thermal
regulation specification.
Note 5: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal
value measured at 1V differential.
Note 6: Ground pin current is the regulator quiescent current plus pass transistor base current. The total current drawn from the
supply is the sum of the load current plus the ground pin current.
Note 7: The error flag comparator includes 2.5% hysteresis.
Note 8: The FLAG pin will be enabled if EN pin voltage is high, and disabled if EN pin voltage is low.
Mar. 2006 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
9
Preliminary Datasheet
150mA RF ULDO REGULATOR WITH ERROR FLAG
AP2203
Electrical Characteristics (Continued)
AP2203-3.3V Electrical Characteristics
VIN=4.3V, IOUT=100
µA, COUT=2.2µF, VEN≥
2.0V, TJ=25oC, Bold typeface applies over -40oC<TJ<125oC (note 2), unless other-
wise specified.
Parameter
Symbol
Conditions
Min
-1
Typ
120
Max
Unit
1
∆VOUT/VOUT
Variation from specified VOUT
Output Voltage Accuracy
%
-2
2
µV/oC
ppm/oC
mV
∆VOUT/∆T
Output Voltage
Temperature Coefficient
(Note 3)
(∆VOUT/VOUT)/∆T
36
1.5
4.5
12
VRLINE
VIN=4.3V to 13.2V
Line Regulation
Load Regulation
IOUT=0.1mA to 150mA
(Note 4)
1
6
VRLOAD
mV
mV
µA
µA
15
15
50
IOUT=100µA
70
110
140
165
0.01
100
350
600
1300
150
230
250
300
275
350
1
I
OUT=50mA
Dropout Voltage
(Note 5)
VDROP
IOUT=100mA
I
OUT=150mA
VEN ≤ 0.4V (shutdown)
VEN ≤ 0.18V (shutdown)
IQ
Quiescent Current
5
150
180
600
800
1000
1500
1900
2500
VEN ≥ 2.0V, IOUT=100µA
VEN ≥ 2.0V, IOUT=50mA
VEN ≥ 2.0V, IOUT=100mA
VEN ≥ 2.0V, IOUT=150mA
Ground Pin Current
(Note 6)
IGND
Ripple Rejection
Current Limit
PSRR
ILIMIT
frequency=100Hz, IOUT=100µA
75
dB
VOUT=0V
450
650
mA
Mar. 2006 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
10
Preliminary Datasheet
150mA RF ULDO REGULATOR WITH ERROR FLAG
AP2203
Electrical Characteristics (Continued)
AP2203-3.3V Electrical Characteristics
VIN=4.3V, IOUT=100
wise specified.
µA, COUT=2.2µF, VEN≥
2.0V, TJ=25oC, Bold typeface applies over -40oC<TJ<125oC (note 2), unless other-
Parameter
Symbol
Conditions
Min
2.0
Typ
Max
0.4
Unit
Enable Input Logic-low
Voltage
VIL
Regulator shutdown
V
0.18
Enable Input Logic-high Voltage
Enable Input Logic-low Current
VIH
IIL
Regulator enabled
VIL≤ 0.4V
V
0.01
5
-1
-2
µA
VIL≤ 0.18V
VIL≥ 2.0V
20
25
IIH
Enable Input Logic-high Current
Flag Threshold
µA
VIL≥ 2.0V
Undervoltage condition
(below nominal) (Note 7)
VERR
-10
-6
-2
%
Output Logic-low Voltage
(Note 8)
IFL=1mA
VOL
IFL
0.2
0.1
0.4
V
Undervoltage condition
Flag Leakage Current
Flag off, VFLAG=0V to 13.2V
-0.1
1
µA
Note 2: Specifications in bold type are limited to -40oC<TJ<125oC. Limits over temperature are guaranteed by design, but not
tested in production.
Note 3: Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature
range.
Note 4: Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load
regulation in the load range from 0.1mA to 150mA. Changes in output voltage due to heating effects are covered by the thermal
regulation specification.
Note 5: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal
value measured at 1V differential.
Note 6: Ground pin current is the regulator quiescent current plus pass transistor base current. The total current drawn from the
supply is the sum of the load current plus the ground pin current.
Note 7: The error flag comparator includes 2.5% hysteresis.
Note 8: The FLAG pin will be enabled if EN pin voltage is high, and disabled if EN pin voltage is low.
Mar. 2006 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
11
Preliminary Datasheet
150mA RF ULDO REGULATOR WITH ERROR FLAG
AP2203
Typical Performance Characteristics
350
3.0150
IOUT=50mA
IOUT=100mA
3.0125
AP2203-3.0V
300
250
200
150
100
50
3.0100
3.0075
3.0050
3.0025
3.0000
2.9975
2.9950
2.9925
2.9900
2.9875
2.9850
IOUT=150mA
CIN=1.0µF, COUT=2.2µF
0
-50
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
100
125
Junction Temperature (oC)
Junction Temperature (oC)
Figure 4. Output Voltage vs. Junction Temperature
Figure 5. Dropout Voltage vs. Junction Temperature
2.00
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
AP2203-3.0V
1.75
IOUT=50mA
IOUT=100mA
1.50
IOUT=150mA
VIN=4V,CIN=1.0µF,COUT=2.2µF
1.25
1.00
0.75
0.50
0.25
0.00
-50
-25
0
25
50
75
100
125
0
25
50
75
100
125
150
Output Current (mA)
Junction Temperature (oC)
Figure 7. Ground Pin Current vs. Junction Temperature
Figure 6. Ground Pin Current vs. Output Current
Mar. 2006 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
12
Preliminary Datasheet
150mA RF ULDO REGULATOR WITH ERROR FLAG
AP2203
Typical Performance Characteristics (Continued)
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
20
18
16
14
12
10
8
VEN=1.8V
VEN=2.0V
AP2203-3.0V
VEN=on
AP2203-3.0V
VEN=3.0V
VEN=off
VEN=3.7V
CIN=1.0µF, COUT=2.2µF,
VIN=4V, IOUT=100µA
VIN=4V, CIN=1.0µF,
COUT=2.2µF, IOUT=100µA
6
4
2
0
-50
-50
-25
0
25
50
75
100
125
-25
0
25
50
75
100
125
Junction Temperature (oC)
Junction Temperature (oC)
Figure 8. Enable Current vs. Junction Temperature
Figure 9. Enable Voltage vs. Junction Temperature
600
10
AP2203-3.0V
AP2203-3.0V
SOT-23-5 Package
VIN=4.5V, IOUT=10mA
400
200
0
1
CIN=1µF, COUT=2.2µF
100m
0
10m
1m
-200
-400
-600
10
100
1k
10k
100k
1M
10M
0
20 40 60 80 100 120 140 160 180 200
Frequency (Hz)
Time (µs)
Figure 10. Output Noise vs. Frequency
Figure 11. Load Transient
(Conditions: V =4V, V =2V, =5mA to 200mA,
I
OUT
IN
EN
C
=1µF,
C
=2.2µF)
IN
OUT
Mar. 2006 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
13
Preliminary Datasheet
150mA RF ULDO REGULATOR WITH ERROR FLAG
AP2203
Typical Performance Characteristics (Continued)
6
5
4
3
6
4
2
0
AP2203-3.0V
AP2203-3.0V
0
2
0
-50
-2
-4
-100
-150
0
100 200 300 400 500 600 700 800 900 1000
0
40
80 120 160 200 240 280 320 360 400
Time (µs)
Time (µs)
Figure 13. V (on) vs. V
Figure 12. Line Transient
(Conditions: VIN=4 to 5V, VEN=2V, IOUT=100µA
CIN=1µF, COUT=10µF)
EN
OUT
(Conditions: V =0 to 2V, V =4V, I
=30mA,
EN
IN
OUT
C =1.0µF, C
=2.2µF)
IN
OUT
100
80
0.8
SOT-23-5 Package
No Heatsink
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
AP2203-3.0V
60
40
20
25
50
75
100
125
150
0
10
100
1000
10K
100K
1M
10M
Ambient Temperature (oc)
Frequency (Hz)
Figure 14. PSRR vs. Frequency
(Conditions: C =1.0µF, C =2.2µF, V =4V,
Figure 15. Power Dissipation vs. Ambient Temperature
IN
OUT
IN
I
=100mA, V =2V)
OUT
EN
Mar. 2006 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
14
Preliminary Datasheet
150mA RF ULDO REGULATOR WITH ERROR FLAG
AP2203
Typical Performance Characteristics (Continued)
100
10
100
10
COUT=2.2µF
COUT=1µF
Stable Area
Stable Area
1
1
0.1
0.01
0.1
0.01
0
20
40
60
80
100
120
140
0
25
50
75
100
125
150
Output Current (mA)
Output Current (mA)
Figure 16. ESR vs. Output Current
Figure 17. ESR vs. Output Current
100
10
COUT=4.7µF
Stable Area
1
0.1
0.01
0
25
50
75
100
125
150
Output Current (mA)
Figure 18. ESR vs. Output Current
Mar. 2006 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
15
Preliminary Datasheet
150mA RF ULDO REGULATOR WITH ERROR FLAG
AP2203
Typical Application
VIN=4.0V
AP2203-3.0
V
OUT=3.0V
VIN
VIN
VOUT
VOUT
GND
COUT
+
CIN
2.2 µF
tantalum
1.0 µF
EN
FLAG
VEN=2.0V
100k
Figure 19. Typical Application of AP2203
Note 9: Dropout voltage is 165mV when TA=25oC. In order to obtain a normal output voltage, VOUT+0.165V is the minimum
input voltage which will results a low PSRR, imposing a bad influence on system. Therefore, the recommended input voltage
is VOUT+0.5V to 13.2V. For AP2203-3.0V version, its input voltage can be set from 3.5V(VOUT+0.5V) to 13.2V.
Mar. 2006 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
16
Preliminary Datasheet
150mA RF ULDO REGULATOR WITH ERROR FLAG
AP2203
Application Information
Input Capacitor
Where: T ≤T
, T
is absolute maximum rat-
J
J(max) J(max)
A 1µF minimum capacitor is recommended to be
ings for the junction temperature; V *I
can be
IN GND
placed between V and GND.
IN
ignored due to its small value.
is 150oC while θJA is 200oC/W, no heatsink is
Output Capacitor
T
J(max)
It is required to prevent oscillation. 1.0µF minimum
is recommended The output capacitor may be
increased to improve transient response.
required since the package alone will dissipate
enough heat to satisfy these requirements unless the
calculated value for power dissipation exceeds the
limit.
Power Dissipation
Thermal shutdown may take place if exceeding the
maximum power dissipation in application. Under all
possible operating conditions, the junction tempera-
ture must be within the range specified under abso-
lute maximum ratings to avoid thermal shutdown.
Take 3.0V version as an example:
o
I
=150mA, T =50 C, V
is:
IN(Max)
OUT
A
(150oC-50oC)/(0.15A*200oC/W)+3.0V=6.333V
Therefore, for good performance, please make sure
that input voltage is less than 6.333V without heat-
To determine if the power dissipated in the regulator
reaches the maximum power dissipation (see figure
15), using:
o
sink when T =50 C.
A
T = P *θJA + T
J
D
A
P =(V -V
)*I
+V *I
D
IN OUT OUT IN GND
Mar. 2006 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
17
Preliminary Datasheet
150mA RF ULDO REGULATOR WITH ERROR FLAG
AP2203
Mechanical Dimensions
SOT-23-5
Unit: mm(inch)
2.820(0.111)
3.020(0.119)
0.100(0.004)
0.200(0.008)
0.200(0.008)
0.700(0.028)
REF
0.300(0.012)
0.400(0.016)
0°
8°
0.950(0.037)
TYP
1.800(0.071)
2.000(0.079)
0.000(0.000)
0.100(0.004)
1.050(0.041)
1.150(0.045)
Mar. 2006 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
18
http://www.bcdsemi.com
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