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Preliminary Datasheet 150mA RF ULDO REGULATOR WITH ERROR FLAG General Description
The AP2203 is a 150mA ULDO regulator, which provides ultra low dropout voltage (typically 165mV at 150mA), very low quiescent current (1A 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. The AP2203 also features an undervoltage monitor with an error flag output, 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-battery protection. The AP2203 has 2.5V, 3.0V and 3.3V versions. The AP2203 is available in space saving 5-pin SOT23-5 package.
AP2203
Features
* * * * * * * * * * * * * Error Flag to Indicate Undervoltage Fault Up to 150mA Regulator Output Low Quiescent Current Low Dropout Voltage: VDROP=165mV at 150mA High Output Accuracy: 1% Good Ripple Rejection Ability: 75dB at 100Hz and IOUT=100A 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 Wireless Communicators PDAs / Palmtops Consumer Electronics
SOT-23-5
Figure 1. Package Type of AP2203
Mar. 2006 Rev. 1. 0 1
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 150mA RF ULDO REGULATOR WITH ERROR FLAG Pin Configuration AP2203
K Package (SOT-23-5)
VIN GND EN
1 2 3
5
VOUT
4
FLAG
Figure 2. Pin Configuration of AP2203 (Top View)
Pin Description
Pin Number 1 2 3 4 5 Pin Name VIN GND EN FLAG VOUT Input voltage Ground Enable input: CMOS or TTL compatible input. Logic high=enable, logic low=shutdown Error flag (Output pin): Open-collector output. Active low indicates an output undervoltage condition Regulated output voltage Function
Mar. 2006 Rev. 1. 0 2
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 150mA RF ULDO REGULATOR WITH ERROR FLAG Functional Block Diagram AP2203
VIN
1
5
VOUT
R1
FLAG
4
R2
BANDGAP REF
EN
3
CURRENT LIMIT THERMAL SHUTDOWN
2
GND
Figure 3. Functional Block Diagram of AP2203
Mar. 2006 Rev. 1. 0 3
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 150mA RF ULDO REGULATOR WITH ERROR FLAG Ordering Information
AP2203 E1: Lead Free Blank: Tin Lead TR: Tape and Reel Package K: SOT-23-5 2.5: Fixed Output 2.5V 3.0: Fixed Output 3.0V 3.3: Fixed Output 3.3V
AP2203
Circuit Type
Package
Temperature Range
Part Number Tin Lead AP2203K-2.5TR Lead Free AP2203K-2.5TRE1 AP2203K-3.0TRE1 AP2203K-3.3TRE1
Marking ID Tin Lead K3C K3F K3G Lead Free E3C E3F E3G
Packing Type Tape & Reel Tape & Reel Tape & Reel
SOT-23-5
-40 to 125oC
AP2203K-3.0TR AP2203K-3.3TR
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.
Mar. 2006 Rev. 1. 0 4
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 150mA RF ULDO REGULATOR WITH ERROR FLAG Absolute Maximum Ratings (Note 1)
Parameter Supply Input Voltage Enable Input Voltage Power Dissipation Lead Temperature (Soldering, 5sec) Storage Temperature ESD (Machine Model) Thermal Resistance (No Heatsink) JA Symbol VIN VEN PD TLEAD TSTG Value 15 15 Internally Limited (Thermal Protection) 260 -65 to 150 300 200 Unit V V W
o
AP2203
C
oC
V
oC/W
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 Supply Input Voltage Enable Input Voltage Operating Junction Temperature Symbol VIN VEN TJ Min 2.5 0 -40 Max 13.2 13.2 125 Unit V V
oC
Mar. 2006 Rev. 1. 0 5
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 150mA RF ULDO REGULATOR WITH ERROR FLAG Electrical Characteristics AP2203-2.5V Electrical Characteristics
VIN=3.5V, IOUT=100A, COUT=2.2F, VEN2.0V, TJ=25oC, Bold typeface applies over -40oCAP2203
Mar. 2006 Rev. 1. 0 6
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 150mA RF ULDO REGULATOR WITH ERROR FLAG Electrical Characteristics (Continued) AP2203-2.5V Electrical Characteristics
VIN=3.5V, IOUT=100A, COUT=2.2F, VEN2.0V, TJ=25oC, Bold typeface applies over -40oCAP2203
Enable Input Logic-high Current Flag Threshold Output Logic-low Voltage (Note 8) Flag Leakage Current
Note 2: Specifications in bold type are limited to -40oCMar. 2006 Rev. 1. 0 7
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 150mA RF ULDO REGULATOR WITH ERROR FLAG Electrical Characteristics (Continued) AP2203-3.0V Electrical Characteristics
VIN=4V, IOUT=100A, COUT=2.2F, VEN2.0V, TJ=25oC, Bold typeface applies over -40oCAP2203
Mar. 2006 Rev. 1. 0 8
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 150mA RF ULDO REGULATOR WITH ERROR FLAG Electrical Characteristics (Continued) AP2203-3.0V Electrical Characteristics
VIN=4V, IOUT=100A, COUT=2.2F, VEN2.0V, TJ=25oC, Bold typeface applies over -40oCAP2203
Enable Input Logic-high Current Flag Threshold Output Logic-low Voltage (Note 8) Flag Leakage Current
Note 2: Specifications in bold type are limited to -40oCMar. 2006 Rev. 1. 0 9
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 150mA RF ULDO REGULATOR WITH ERROR FLAG Electrical Characteristics (Continued) AP2203-3.3V Electrical Characteristics
VIN=4.3V, IOUT=100A, COUT=2.2F, VEN2.0V, TJ=25oC, Bold typeface applies over -40oCAP2203
Mar. 2006 Rev. 1. 0 10
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 150mA RF ULDO REGULATOR WITH ERROR FLAG Electrical Characteristics (Continued) AP2203-3.3V Electrical Characteristics
VIN=4.3V, IOUT=100A, COUT=2.2F, VEN2.0V, TJ=25oC, Bold typeface applies over -40oCAP2203
Enable Input Logic-high Current Flag Threshold Output Logic-low Voltage (Note 8) Flag Leakage Current
Note 2: Specifications in bold type are limited to -40oCMar. 2006 Rev. 1. 0 11
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 150mA RF ULDO REGULATOR WITH ERROR FLAG Typical Performance Characteristics AP2203
3.0150 3.0125 3.0100 3.0075
350
AP2203-3.0V
Dropout Voltage (mV)
300
IOUT=50mA IOUT=100mA IOUT=150mA CIN=1.0F, COUT=2.2F
250
Output Voltage (V)
3.0050 3.0025 3.0000 2.9975 2.9950 2.9925 2.9900 2.9875 2.9850 -50 -25 0 25 50
o
200
150
100
50
75
100
125
0 -50
-25
0
25
50
o
75
100
125
Junction Temperature ( C)
Junction Temperature ( C)
Figure 4. Output Voltage vs. Junction Temperature
Figure 5. Dropout Voltage vs. Junction Temperature
1.2 1.1
2.00 1.75
1.0
AP2203-3.0V IOUT=50mA IOUT=100mA IOUT=150mA VIN=4V,CIN=1.0F,COUT=2.2F
Ground Pin Current (mA)
Ground Pin Current (mA)
0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2
1.50 1.25 1.00 0.75 0.50 0.25
0.1 0.0 0 25 50 75 100 125 150
0.00 -50 -25 0 25 50
o
75
100
125
Output Current (mA)
Junction Temperature ( C)
Figure 6. Ground Pin Current vs. Output Current
Figure 7. Ground Pin Current vs. Junction Temperature
Mar. 2006 Rev. 1. 0 12
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 150mA RF ULDO REGULATOR WITH ERROR FLAG Typical Performance Characteristics (Continued) AP2203
20 18 16
2.0
AP2203-3.0V
VEN=1.8V VEN=2.0V VEN=3.0V
1.8 1.6
AP2203-3.0V VEN=on VEN=off CIN=1.0F, COUT=2.2F, VIN=4V, IOUT=100A
Enable Current (A)
14 12 10 8 6 4 2 0 -50
VIN=4V, CIN=1.0F, COUT=2.2F, IOUT=100A
Enable Voltage (V)
VEN=3.7V
1.4 1.2 1.0 0.8 0.6 0.4 -50
-25
0
25
50
o
75
100
125
-25
0
25
50
o
75
100
125
Junction Temperature ( C)
Junction Temperature ( C)
Figure 8. Enable Current vs. Junction Temperature
Figure 9. Enable Voltage vs. Junction Temperature
10
600 AP2203-3.0V IOUT (mA) VOUT (mV)
100 1k 10k 100k 1M 10M
Output Noise ( V/ Hz)
1
AP2203-3.0V SOT-23-5 Package VIN=4.5V, IOUT=10mA CIN=1F, COUT=2.2F
400 200 0
100m
0 -200 -400 -600 0 20 40 60 80 100 120 140 160 180 200
Time (s)
10m
1m 10
Frequency (Hz)
Figure 10. Output Noise vs. Frequency
Figure 11. Load Transient (Conditions: VIN=4V, VEN=2V, IOUT=5mA to 200mA, CIN=1F, COUT=2.2F)
Mar. 2006 Rev. 1. 0 13
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 150mA RF ULDO REGULATOR WITH ERROR FLAG Typical Performance Characteristics (Continued) AP2203
6 5 VIN (v) 4 3 AP2203-3.0V VEN (V)
6 4 2 0 AP2203-3.0V
VOUT (mV)
0 VOUT (V) 0 100 200 300 400 500 600 700 800 900 1000
Time (s)
2 0 -2 -4 0 40 80 120 160 200 240 280 320 360 400
Time (s)
-50 -100 -150
Figure 12. Line Transient (Conditions: VIN=4 to 5V, VEN=2V, IOUT=100A CIN=1F, COUT=10F)
Figure 13. VEN(on) vs. VOUT (Conditions: VEN=0 to 2V, VIN=4V, IOUT=30mA, CIN=1.0F, COUT=2.2F)
100
0.8 0.7 0.6
80
AP2203-3.0V
Power Dissipation (W)
SOT-23-5 Package No Heatsink
PSRR (dB)
60
0.5 0.4 0.3 0.2 0.1 0.0 25
40
20
0
50
75
100
o
125
150
10
100
1000
10K
100K
1M
10M
Ambient Temperature (
Frequency (Hz)
c)
Figure 14. PSRR vs. Frequency (Conditions: CIN=1.0F, COUT=2.2F, VIN=4V, IOUT=100mA, VEN=2V)
Figure 15. Power Dissipation vs. Ambient Temperature
Mar. 2006 Rev. 1. 0 14
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 150mA RF ULDO REGULATOR WITH ERROR FLAG Typical Performance Characteristics (Continued) AP2203
100
100
COUT=1F
10
COUT=2.2F
10
ESR ()
ESR ()
Stable Area
1
Stable Area
1
0.1
0.1
0.01 0 25 50 75 100 125 150
0.01 0 20 40 60 80 100 120 140
Output Current (mA)
Output Current (mA)
Figure 16. ESR vs. Output Current
Figure 17. ESR vs. Output Current
100
COUT=4.7F
10
ESR ()
1
Stable Area
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 15
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 150mA RF ULDO REGULATOR WITH ERROR FLAG Typical Application AP2203
VIN=4.0V VIN
AP2203-3.0
VIN GND VOUT
VOUT=3.0V VOUT
CIN 1.0 F VEN=2.0V 100k EN FLAG
+ COUT
2.2 F tantalum
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 16
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 150mA RF ULDO REGULATOR WITH ERROR FLAG Application Information
Input Capacitor A 1F minimum capacitor is recommended to be placed between VIN and GND. Output Capacitor It is required to prevent oscillation. 1.0F minimum is recommended The output capacitor may be increased to improve transient response. Power Dissipation Thermal shutdown may take place if exceeding the maximum power dissipation in application. Under all possible operating conditions, the junction temperature must be within the range specified under absolute maximum ratings to avoid thermal shutdown. To determine if the power dissipated in the regulator reaches the maximum power dissipation (see figure 15), using: TJ = PD*JA + TA PD=(VIN-VOUT)*IOUT+VIN*IGND Where: TJTJ(max), TJ(max) is absolute maximum ratings for the junction temperature; VIN*IGND can be ignored due to its small value. TJ(max) is 150oC while JA is 200oC/W, no heatsink is required since the package alone will dissipate enough heat to satisfy these requirements unless the calculated value for power dissipation exceeds the limit. Take 3.0V version as an example: IOUT=150mA, TA=50oC, VIN(Max) is: (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 heatsink when TA=50oC.
AP2203
Mar. 2006 Rev. 1. 0 17
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 150mA RF ULDO REGULATOR WITH ERROR FLAG Mechanical Dimensions SOT-23-5 Unit: mm(inch) AP2203
2.820(0.111) 3.020(0.119)
0.100(0.004) 0.200(0.008)
2.650(0.104)
2.950(0.116)
1.500(0.059) 1.700(0.067)
0.200(0.008)
0.700(0.028) REF
0.950(0.037) TYP
0.300(0.012) 0.400(0.016) 1.800(0.071) 2.000(0.079)
0.300(0.012) 0.600(0.024)
0 8
1.050(0.041)
1.250(0.049)
0.000(0.000) 0.100(0.004)
1.050(0.041) 1.150(0.045)
Mar. 2006 Rev. 1. 0 18
BCD Semiconductor Manufacturing Limited
http://www.bcdsemi.com
IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifications herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or other rights nor the rights of others.
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