[AP1153ADSXX]
015000869-E-00 - 1 - 2015/01
1. General Description
The AP1153ADSXX is a low dropout linear regulator with ON/OFF control, which can supply 100mA load
current. The IC is an integrated circuit with a silicon monolithic bipolar structure. The output voltage, trimmed
with high accuracy, is available from 1.3 to 5.0V in 0.1V steps. The output capacitor is available to use a small
0.22μF ceramic capacitor. The over current, thermal and reverse bias protections are integrated, and also the
package is small and thin type. The IC is designed for space saving requirements.
2. Feature
Available to use a small 0.22μF ceramic capacitor
Dropout Voltage VDROP=160mV at 100mA
Output Current 100mA
High Precision output voltage 1.5% or 50mV
High ripple rejection ratio 80dB at 1kHz
70dB at 10kHz
Wide operating voltage range 2.1V to 14.0V
Very low quiescent current IQUT=75A at IOUT=0mA
On/Off control (High active)
Built-in Short circuit protection, thermal shutdown
Built-in reverse bias over current protection
Available very low noise application
Very small surface mount package SOT23-5
3. Application
Automotive accessory equipment
Any Electronic Equipment
Battery Powered Systems
Mobile Communication
AP1153ADSXX
14V Input / 100mA Output LDO Regulator
[AP1153ADSXX]
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4. Table of Contents
1. General Description ........................................................................................................................................... 1
2. Feature ................................................................................................................................................................ 1
3. Application ......................................................................................................................................................... 1
4. Table of Contents ............................................................................................................................................... 2
5. Block Diagram ................................................................................................................................................... 3
6. Ordering Information ......................................................................................................................................... 4
7. Pin Configurations and Functions ...................................................................................................................... 5
■ Pin Configurations ............................................................................................................................................ 5
■ Functions .......................................................................................................................................................... 5
8. Absolute Maximum Ratings .............................................................................................................................. 6
9. Recommended Operating Conditions ................................................................................................................ 6
10. Electrical Characteristics .................................................................................................................................... 7
■ Electrical Characteristics of Ta=Tj=25C ........................................................................................................ 7
■ Electrical Characteristics of Ta=-40C~85C .................................................................................................. 9
11. Description ....................................................................................................................................................... 11
11.1 DC Characteristics .................................................................................................................................... 11
11.2 Temperature Characteristics ..................................................................................................................... 14
11.3 Ripple Rejection ....................................................................................................................................... 16
11.4 ON/OFF transient ..................................................................................................................................... 17
11.5 ON/OFF transient ..................................................................................................................................... 18
11.6 Line transient ............................................................................................................................................ 19
11.7 Output noise ............................................................................................................................................. 20
11.8 Stability..................................................................................................................................................... 21
11.9 Operating Region and Power Dissipation ................................................................................................ 23
11.10 ON/OFF Control ................................................................................................................................... 24
11.11 Noise Bypass ........................................................................................................................................ 25
11.12 The notes of the evaluation when output terminal is short-circuit to GND .......................................... 25
12. Definition of term............................................................................................................................................. 26
13. Recommended External Circuits ..................................................................................................................... 27
■External Circuit ............................................................................................................................................... 27
■Test Circuit ...................................................................................................................................................... 27
14. Package ............................................................................................................................................................ 28
■ Outline Dimensions ........................................................................................................................................ 28
15. Revise History .................................................................................................................................................. 29
IMPORTANT NOTICE .......................................................................................................................................... 30
[AP1153ADSXX]
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5. Block Diagram
Bandgap
Reference
Over Heat &
Over Current
Protection
Vin
Vcont
Vout
NpGND
500kΩ
Control
Circuit
320kΩ
Figure 1. Block Diagram
VIN
VOUT
VCONT
GND
NP
[AP1153ADSXX]
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6. Ordering Information
AP1153ADSXX Ta = -40 to 85°C SOT23-5
・ Output Voltage Code
For product name, please check the below chart. Please contact your authorized ASAHI KASEI
MICRODEVICES representative for voltage availability.
AP1153ADSXX
Table 1. Standard Voltage Version, Output Voltage & Voltage Code
XX
VOUT
XX
VOUT
XX
VOUT
18
1.8
28
2.8
33
3.3
21
2.1
30
3.0
50
5.0
Table 2. Optional Voltage Version, Output Voltage & Voltage Code
XX
VOUT
XX
VOUT
XX
VOUT
XX
VOUT
13
1.3
24
2.4
36
3.6
45
4.5
14
1.4
25
2.5
37
3.7
46
4.6
15
1.5
26
2.6
38
3.8
47
4.7
16
1.6
27
2.7
39
3.9
48
4.8
17
1.7
29
2.9
40
4.0
49
4.9
19
1.9
31
3.1
41
4.1
-
-
20
2.0
32
3.2
42
4.2
-
-
22
2.2
34
3.4
43
4.3
-
-
23
2.3
35
3.5
44
4.4
-
-
Output voltage code
[AP1153ADSXX]
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7. Pin Configurations and Functions
■ Pin Configurations
VIN
VOUT
NP
(Top View)
5
4
3
2
1
GND
VCONT
■ Functions
Pin No.
Pin
Description
Internal Equivalent Circuit
Description
1
VCONT
1
Vcont
320k
500k
On/Off Control Terminal
Vcont > 1.8V : ON
Vcont < 0.35V : OFF
The pull-down resister (500k) is built-in.
2
GND
-
GND Terminal
3
NP
Np
3
Noise Bypass Terminal
Connect a bypass capacitor between GND.
4
VOUT
Vout
Vin
Vref
4
Output Terminal
5
VIN
-
Input Terminal
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8. Absolute Maximum Ratings
Parameter
Symbol
min
max
Unit
Condition
Supply Voltage
VccMAX
-0.4
16
V
Reverse Bias
VrevMAX
-0.4
6
V
Vout≦2.0V
-0.4
12
V
2.1V≦Vout
Np pin Voltage
VnpMAX
-0.4
5
V
Control pin Voltage
VcontMAX
-0.4
16
V
Junction temperature
Tj
-
150
C
Storage Temperature Range
Tstg
-55
150
C
Power Dissipation
PD
-
500
mW
When mounted on PCB
(Note 1)
Note 1. Please do derating with 4.0mW/C at Pd=500mW and 25C or more. Thermal resistance JA =
250C/W.
WARNING: The maximum ratings are the absolute limitation values with the possibility of the IC breakage.
When the operation exceeds this standard quality cannot be guaranteed.
9. Recommended Operating Conditions
Parameter
Symbol
min
typ
max
Unit
Condition
Operating Temperature Range
Ta
-40
-
85
C
Operating Voltage Range
VOP
2.1
-
14
V
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10. Electrical Characteristics
■ Electrical Characteristics of Ta=Tj=25C
The parameters with min or max values will be guaranteed at Ta=Tj=25C.
(VIN=Vouttyp+1V,Vcont=1.8V,Ta=Tj=25C, unless otherwise specified.)
Parameter
Symbol
Condition
min
typ
max
Unit
Output Voltage
Vout
Iout = 5mA
(Table 3, Table 4)
V
Line Regulation
LinReg
Vin = 5V
-
0.0
5.0
mV
Load Regulation
LoaReg
Iout = 5mA ~ 50mA
(Table 3, Table 4)
mV
Iout = 5mA ~ 100mA
mV
Dropout Voltage (Note 2)
Vdrop
Iout = 50mA
-
90
160
mV
Iout = 100mA
-
160
280
mV
Output Current(Note 3)
Iout
-
-
100
mA
Maximum Output Current
(Note 3)
IoutMAX
Vout=VoutTYP0.9
150
200
-
mA
Supply Current
Icc
Iout = 0mA
-
75
120
μA
Standby Current
Istandby
Vcont = 0V
-
0.0
0.1
μA
Quiescent Current
Iq
Iout = 50mA
-
1.5
2.7
mA
Control Terminal
Control Current
Icont
Vcont = 1.8V
-
5.0
15.0
μA
Control Voltage
Vcont
Vout ON state
1.8
-
-
V
Vout OFF state
-
-
0.35
V
Reference Value
Np Terminal Voltage
Vnp
-
1.26
-
V
Output Voltage / Temp.
Vout/Ta
-
35
-
ppm
/C
Short Circuit Current
ISHORT
-
200
-
mA
Output Noise Voltage
(VoutTYP=3.0V)
Vnoise
Cout=1.0F, Cnp=0.01F
Iout=30mA
-
38
-
μV
rms
Ripple Rejection
(VoutTYP=3.0V)
RR
Cout=1.0F, Cnp=0.001F
Iout=10mA, f=1kHz
-
80
-
dB
f=10kHz
-
70
-
dB
Rise Time
(VoutTYP=3.0V)
tr
Cout=1.0F, Cnp=0.001F
Vcont: Pulse Wave (100Hz)
Vcont ON → Vout95%
point
-
35
-
μs
Note 2. For Vout 2.0V , no regulations.
Note 3. The maximum output current is limited by power dissipation.
General Note:
Parameter with only typical value is for reference only.
[AP1153ADSXX]
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Table 3. Standard Voltage Version
Part Number
Output Voltage
Load Regulation
Iout = 50mA
Iout = 100mA
min
typ
max
typ
max
typ
max
V
V
V
V
V
mV
mV
AP1153ADS18
1.750
1.800
1.850
5
12
11
26
AP1153ADS21
2.050
2.100
2.150
5
12
12
28
AP1153ADS28
2.750
2.800
2.850
6
14
14
34
AP1153ADS30
2.950
3.000
3.050
6
15
15
35
AP1153ADS33
3.250
3.300
3.350
7
16
16
37
AP1153ADS50
4.925
5.000
5.075
9
20
21
50
Table 4. Optional Voltage Version
Part Number
Output Voltage
Load Regulation
Iout = 50mA
Iout = 100mA
min
typ
max
typ
max
typ
max
V
V
V
V
V
mV
mV
AP1153ADS13
1.250
1.300
1.350
5
10
10
22
AP1153ADS14
1.350
1.400
1.450
5
10
10
23
AP1153ADS15
1.450
1.500
1.550
5
11
10
24
AP1153ADS16
1.550
1.600
1.650
5
11
11
25
AP1153ADS17
1.650
1.700
1.750
5
11
11
25
AP1153ADS19
1.850
1.900
1.950
5
12
11
27
AP1153ADS20
1.950
2.000
2.050
5
12
12
28
AP1153ADS22
2.150
2.200
2.250
6
13
12
29
AP1153ADS23
2.250
2.300
2.350
6
13
13
30
AP1153ADS24
2.350
2.400
2.450
6
13
13
31
AP1153ADS25
2.450
2.500
2.550
6
14
13
31
AP1153ADS26
2.550
2.600
2.650
6
14
14
32
AP1153ADS27
2.650
2.700
2.750
6
14
14
33
AP1153ADS29
2.850
2.900
2.950
6
15
15
34
AP1153ADS31
3.050
3.100
3.150
7
15
15
36
AP1153ADS32
3.150
3.200
3.250
7
15
16
37
AP1153ADS34
3.349
3.400
3.451
7
16
16
38
AP1153ADS35
3.447
3.500
3.553
7
16
16
39
AP1153ADS36
3.546
3.600
3.654
7
17
17
40
AP1153ADS37
3.644
3.700
3.756
7
17
17
40
AP1153ADS38
3.743
3.800
3.857
7
17
17
41
AP1153ADS39
3.841
3.900
3.959
8
17
18
42
AP1153ADS40
3.940
4.000
4.060
8
18
18
43
AP1153ADS41
4.038
4.100
4.162
8
18
18
43
AP1153ADS42
4.137
4.200
4.263
8
18
19
44
AP1153ADS43
4.235
4.300
4.365
8
18
19
45
AP1153ADS44
4.334
4.400
4.466
8
19
19
46
AP1153ADS45
4.432
4.500
4.568
8
19
20
46
AP1153ADS46
4.531
4.600
4.669
8
19
20
47
AP1153ADS47
4.629
4.700
4.771
8
20
20
48
AP1153ADS48
4.728
4.800
4.872
9
20
21
49
AP1153ADS49
4.826
4.900
4.974
9
20
21
49
[AP1153ADSXX]
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■ Electrical Characteristics of Ta=-40C~85C
The parameters with min or max values will be guaranteed at Ta=Tj=-40 ~ 85C.
(VIN=VoutTYP+1V,Vcont=1.8V,Ta=-40 ~ 85C, unless otherwise specified.)
Parameter
Symbol
Condition
min
typ
max
Unit
Output Voltage
Vout
Iout = 5mA
(Table 5, Table 6)
V
Line Regulation
LinReg
Vin = 5V
0.0
8.0
mV
Load Regulation
LoaReg
Iout = 5mA ~ 50mA
(Table 5, Table 6)
mV
Iout = 5mA ~ 100mA
mV
Dropout Voltage (Note 4)
Vdrop
Iout = 50mA
90
205
mV
Iout = 100mA
160
360
mV
Output Current(Note 5)
Iout
100
mA
Maximum Output Current
(Note 5)
IoutMAX
Vout=VoutTYP0.9
110
200
-
mA
Supply Current
Icc
Iout = 0mA
75
145
μA
Standby Current
Istandby
Vcont = 0V
0.0
0.5
μA
Quiescent Current
Iq
Iout = 50mA
1.5
3.3
mA
Control Terminal
Control Current
Icont
Vcont = 1.8V
-
5.0
15.0
μA
Control Voltage
Vcont
Vout ON state
1.8
-
-
V
Vout OFF state
-
-
0.35
V
Reference Value
Np Terminal Voltage
Vnp
1.26
V
Output Voltage / Temp.
Vout/Ta
35
ppm
/C
Short Circuit Current
ISHORT
200
mA
Output Noise Voltage
(VoutTYP=3.0V)
Vnoise
Cout=1.0F, Cnp=0.01F
Iout=30mA
38
μV
rms
Ripple Rejection
(VoutTYP=3.0V)
RR
Cout=1.0F, Cnp=0.001F
Iout=10mA, f=1kHz
80
dB
f=10kHz
70
dB
Rise Time
(VoutTYP=3.0V)
tr
Cout=1.0F, Cnp=0.001F
Vcont: Pulse Wave (100Hz)
Vcont ON → Vout95%
point
35
μs
Note 4. For Vout 2.0V, no regulations.
Note 5. The maximum output current is limited by power dissipation.
General Note:
Parameter with only typical value is for reference only.
[AP1153ADSXX]
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Table 5. Standard Voltage Version
Part Number
Output Voltage
Load Regulation
Iout = 50mA
Iout = 100mA
min
typ
max
typ
max
typ
max
V
V
V
V
V
mV
mV
AP1153ADS18
1.720
1.800
1.880
5
14
11
29
AP1153ADS21
2.020
2.100
2.180
5
14
12
31
AP1153ADS28
2.720
2.800
2.880
6
16
14
37
AP1153ADS30
2.920
3.000
3.080
6
17
15
38
AP1153ADS33
3.217
3.300
3.383
7
18
16
40
AP1153ADS50
4.875
5.000
5.125
9
22
21
55
Table 6. Optional Voltage Version
Part Number
Output Voltage
Load Regulation
Iout = 50mA
Iout = 100mA
min
typ
max
typ
max
typ
max
V
V
V
V
V
mV
mV
AP1153ADS13
1.220
1.300
1.380
5
12
10
25
AP1153ADS14
1.320
1.400
1.480
5
12
10
26
AP1153ADS15
1.420
1.500
1.580
5
13
10
27
AP1153ADS16
1.520
1.600
1.680
5
13
11
28
AP1153ADS17
1.620
1.700
1.780
5
13
11
28
AP1153ADS19
1.820
1.900
1.980
5
14
11
30
AP1153ADS20
1.920
2.000
2.080
5
14
12
31
AP1153ADS22
2.120
2.200
2.280
6
15
12
32
AP1153ADS23
2.220
2.300
2.380
6
15
13
33
AP1153ADS24
2.320
2.400
2.480
6
15
13
34
AP1153ADS25
2.420
2.500
2.580
6
16
13
34
AP1153ADS26
2.520
2.600
2.680
6
16
14
35
AP1153ADS27
2.620
2.700
2.780
6
16
14
36
AP1153ADS29
2.820
2.900
2.980
6
17
15
37
AP1153ADS31
3.020
3.100
3.180
7
17
15
39
AP1153ADS32
3.120
3.200
3.280
7
17
16
40
AP1153ADS34
3.312
3.400
3.488
7
18
16
41
AP1153ADS35
3.412
3.500
3.588
7
18
16
42
AP1153ADS36
3.510
3.600
3.690
7
19
17
43
AP1153ADS37
3.605
3.700
3.795
7
19
17
43
AP1153ADS38
3.705
3.800
3.895
7
19
17
44
AP1153ADS39
3.805
3.900
3.995
8
19
18
45
AP1153ADS40
3.900
4.000
4.100
8
20
18
46
AP1153ADS41
3.986
4.100
4.214
8
20
18
47
AP1153ADS42
4.085
4.200
4.315
8
20
19
48
AP1153ADS43
4.184
4.300
4.416
8
20
19
49
AP1153ADS44
4.283
4.400
4.517
8
21
19
50
AP1153ADS45
4.382
4.500
4.618
8
21
20
50
AP1153ADS46
4.481
4.600
4.719
8
21
20
51
AP1153ADS47
4.580
4.700
4.820
8
22
20
52
AP1153ADS48
4.679
4.800
4.921
9
22
21
54
AP1153ADS49
4.777
4.900
5.023
9
20
21
54
[AP1153ADSXX]
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11. Description
11.1 DC Characteristics
Line Regulation
Test conditions
Cnp
0.001F
Cout
1.0F
Iout=5mA
Cin
1.0F
Vcont
1.8V
Vin
=VoutTYP+1V Vin Vout
Vcont Np
Iin vs VIN
Iout=0mA
Quiescent Current
Iout=0mA
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
0 2 4 6 8 10 12 14 16
Vin (V)
Iin (mA)
Vout=
1.5,2.0,3.0,4.0,5.0V
Load Regulation
Peak Output Current
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
050 100 150 200 250 300
Iout (mA)
Vout (V)
5.0V
4.0V
3.0V
2.0V
1.5V
Vout=
[AP1153ADSXX]
015000869-E-00 - 12 - 2015/01
GND Pin Current
Test conditions
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
050 100
Iout (mA)
Ignd (mA)
Cnp
0.001F
Cout
1.0F
Iout=5mA
Cin
1.0F
Vcont
1.8V
Vin
=VoutTYP+1V Vin Vout
Vcont Np
Dropout Voltage
2.1V Vouttyp
Standby Current (Off state)
Vcont=0V
-160
-140
-120
-100
-80
-60
-40
-20
0
050 100
Iout (mA)
Vdrop (mV)
1.E-11
1.E-10
1.E-09
1.E-08
1.E-07
1.E-06
0 2 4 6 8 10 12 14 16
Vin (V)
Istanby (A)
Control Current
Control Current, ON/OFF Point
[AP1153ADSXX]
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Vout vs VIN Regulation Point
2.1V Vouttyp
Test conditions
Cnp
0.001F
Cout
1.0F
Iout=5mA
Cin
1.0F
Vcont
1.8V
Vin
=VoutTYP+1V Vin Vout
Vcont Np
Vout vs VIN Regulation Point
Vouttyp=1.5V
Vout vs VIN Regulation Point
Vouttyp=2.0V
1.34
1.36
1.38
1.40
1.42
1.44
1.46
1.48
1.50
1.52
1.54
1.5 1.6 1.7 1.8 1.9 2.0
Vin (V)
Vout (V)
Iout=0,50,100mA
1.84
1.86
1.88
1.90
1.92
1.94
1.96
1.98
2.00
2.02
2.04
1.8 1.9 2.0 2.1 2.2 2.3
Vin (V)
Vout (V)
Iout=0,50,100mA
Reverse Bias Current
VIN=0V, Vcont=0V
Test conditions
Cnp
0.001F
Cout
1.0F
Vin=0V
Cin
1.0F
Vcont
0V
Vrev
Vin Vout
Vcont Np
Irev
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11.2 Temperature Characteristics
Vout
Vouttyp=3.0V
Test conditions
-40
-30
-20
-10
0
10
20
-40 -20 0 20 40 60 80 100
Ta （℃）
ΔVout (mV)
35.15 ppm/℃
Cnp
0.001F
Cout
1.0F
Iout=5mA
Cin
1.0F
Vcont
1.8V
Vin
=VoutTYP+1V Vin Vout
Vcont Np
Peak Output Current
Vout=Vouttyp 0.9
GND Pin Current
0
50
100
150
200
250
-40 -20 0 20 40 60 80 100
Ta(℃)
IoutPEAK(mA)
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
-40 -20 0 20 40 60 80 100
Ta(°C)
Ignd(mA)
Iout=100mA
Iout=50mA
Iout=30mA
Dropout Voltage
2.1V Vouttyp
Quiescent Current
Iout=0mA
0
50
100
150
200
250
300
-40 -20 0 20 40 60 80 100
Ta(°C)
Vdrop(mV)
Iout=100mA
Iout=50mA
Iout=30mA
[AP1153ADSXX]
015000869-E-00 - 15 - 2015/01
Load Regulation
Vouttyp=3.0V
Line Regulation
VIN = 5V
-60
-50
-40
-30
-20
-10
0
-40 -20 0 20 40 60 80 100
Ta(℃)
LoaReg(mV)
Iout=30mA
Iout=50mA
Iout=100mA
-20
-15
-10
-5
0
5
10
15
20
-40 -20 0 20 40 60 80 100
Ta(℃)
LinReg(mV)
Control Current
ON/OFF Point
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
-40 -20 0 20 40 60 80 100
Ta（℃）
Vcont(V)
Vout_ON
Vout_OFF
[AP1153ADSXX]
015000869-E-00 - 16 - 2015/01
11.3 Ripple Rejection
Cout=0.22F, 0.47F, 1.0F, 2.2F
Test conditions
Cnp
0.001F
Cout
Iout=10mA
Vcont
1.8V
Vin(DC)=VoutTYP+1.5V
f=100Hz 1MHz
200mVp-p
Vripple
Vin Vout
Vcont Np 1.0F
Cnp=0.00F, 0.01F, 0.1F
Iout=10mA, 20mA, 50mA, 100mA
R.R vs Iout : Frequency=1kHz
R.R vs Low VIN : Frequency=1kHz
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
0 20 40 60 80 100
Iout (mA)
Ripple Rejection (dB)
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
0 0.2 0.4 0.6 0.8 1
Vin-Vout(Typ) (V)
Ripple Rejection (dB)
Iout=100mA
Iout=50mA
Iout=20mA
Iout=10mA
Iout=1mA
The ripple rejection (R.R) characteristic depends on the characteristic and the capacitance of the output
capacitor. The R.R characteristic at 50kHz or more varies greatly with the capacitor on the output side and
PCB pattern. Please check stability during operation.
C
o
u
t
=
0
.
2
2
F
0.47F
1.0F
2.2F
C
n
p
=
0
.
0
0
1
F
C
n
p
=
0
.
0
1
F
0
.
1
F
I
o
u
t
=
1
0
0
m
A
50mA
20mA
10mA
[AP1153ADSXX]
015000869-E-00 - 17 - 2015/01
11.4 ON/OFF transient
Test conditions
立上り時間
Vout×95%
Vcont
Vout
Time
Voltage
Cnp
Cout
1.0F
Iout=30mA
Cin
1.0F
Vin
=VoutTYP+1V
Vcont=0V2V
(f=100Hz)
Vin Vout
Vcont Np
0.001F
Cout=0.47F, 1.0F, 2.2F
Cout=0.47F, 1.0F, 2.2F
Cnp=0.001F, 0.01F, 0.1F
Rise time becomes longer if Cout or Cnp becomes larger.
Fall time depends on Cout.
[AP1153ADSXX]
015000869-E-00 - 18 - 2015/01
11.5 ON/OFF transient
Test conditions
Cnp
CoutCin
1.0F
Vcont
1.8V
Vin
=VoutTYP+1V Iout
ONOFF
0.001F
1.0F
Vin Vout
Vcont Np
Iout=0100mA, 5105mA
Iout=100mA0mA, 105mA5mA
Cout=0.47F, 1.0F, 2.2F : Iout=0mA100mA
Cout=0.47F, 1.0F, 2.2F : Iout=100mA0mA
Increase the load side capacitor when the load change is fast or when there is a large current change. In
addition, at no load, supplying small load current to ground can reduce the voltage change.
[AP1153ADSXX]
015000869-E-00 - 19 - 2015/01
11.6 Line transient
Cnp=0.001F, 0.01F, 0.1F
Test conditions
Cnp
Cout
1.0F
Iout=30mA
Vcont
1.8V
Vin
=VoutTYP+1V+2V
0.001F
Vin Vout
Vcont Np
Cout=0.1F, 0.22F, 0.47F
Cout=1.0F, 2.2F
[AP1153ADSXX]
015000869-E-00 - 20 - 2015/01
11.7 Output noise
Vout vs Noise
Test conditions
0
10
20
30
40
50
60
70
80
1.0 2.0 3.0 4.0 5.0
Vout(Typ) (V)
Noise (uVrms)
Cnp
0.01F
Cout
1.0F
Iout=30mA
Cin
1.0F
Vcont
1.8V
Vin
=VoutTYP+1V
BPF=400Hz 80kHz
Vin Vout
Vcont Np
Cnp vs Noise
Iout vs Noise
0
50
100
150
200
250
300
1p 10p 100p 1000p 0.01u 0.1u
Cnp (F)
Noise (uVrms)
Cout=0.22uF
Cout=0.47uF
Cout=1.0uF
Cout=2.2uF
20
25
30
35
40
45
50
55
60
65
70
0 20 40 60 80 100
Iout (mA)
Noise (uVrms)
Cout=0.22uF
Cout=0.47uF
Cout=1.0uF
Cout=2.2uF
Increase Cnp to decrease the noise. The recommended Cnp capacitance is 0.01F 0.1F.
The amount of noise increases with the higher output voltages.
[AP1153ADSXX]
015000869-E-00 - 21 - 2015/01
11.8 Stability
Linear regulators require input and output capacitors in order to maintain the regulator's loop stability. If
0.22μF or larger capacitor is connected to the output pin, the IC provides stable operation at any voltage
(1.3V≤VoutTYP≤5.0V). (The capacitor must be larger than 0.22μF at all temperature and voltage range.)
If the capacitor with high Equivalent Series Resistance (ESR) is used, such as tantalum capacitor etc., the
regulator may oscillate. Please select parts with low ESR. Due to the parts are uneven, please enlarge the
capacitance as much as possible. With larger capacity, the output noise decreases more. In addition, the
response to the load change, etc. can be improved. The IC won’t be damaged by enlarging the capacity.
A recommended value of the application is Cin=Cout≥0.47μF Ceramic Capacitance.
Figure 2. Recommended value
Cout=0.1F Cout=0.22F
0.01
0.1
1
10
100
020 40 60 80 100
Iout (mA)
ESR (Ω)
Stable area
Unstable area
Unstable area
1.5V VoutTYP 5.0V
Figure 3. Stable operation area, Output current and ESR
Figure 3 shows stable operation with a ceramic capacitor of 0.22F. Since it may oscillate if ESR is large, we
recommend using ceramic capacitor. The stability of the regulator improves with larger output capacitor (the
stable operation area extends.) Please use the capacitor with larger capacitance as possible.
For evaluation
Kyocera: CM05B104K10AB, CM05B224K10AB, CM105B104K16A, CM105B224K16A, CM21B225K10A
Murata: GRM36B104K10, GRM42B104K10, GRM39B104K25, GRM39B224K10, GRM39B105K6.3
AP1153ADSXX
Cin
0.47
F
Vin
Vout
Cout
0.47
F
Cnp
0.001
F
GND
[AP1153ADSXX]
015000869-E-00 - 22 - 2015/01
The input capacitor is necessary in case the battery voltage drops, the power supply impedance increases, or the
distance to the power supply is long. One input capacitor might be necessary for each IC or for several ICs. It
depends on circuit condition. Please confirm the stability by each circuit.
Figure 4. Example Ceramic Capacitance vs. Bias Voltage, Temperature
Generally, a ceramic capacitor has both temperature characteristic and voltage characteristic. Please consider
both characteristics when selecting the part. The B curves are the recommend characteristics.
[AP1153ADSXX]
015000869-E-00 - 23 - 2015/01
11.9 Operating Region and Power Dissipation
The power dissipation of the device depends on the junction temperature. Therefore, the package dissipation is
assumed to be an internal limitation. The package itself does not have enough heat radiation characteristic due
to the small size. Heat runs away by mounting IC on PCB. This value changes by the material, copper pattern
etc. of PCB.
The overheating protection operates when there is a lot of loss inside the regulator (Ambient temperature high,
heat radiation bad, etc.). The output current and the output voltage will drop when the protection circuit
operates. When joint temperature (Tj) reaches the set temperature, IC stops the operation. However, operation
begins at once when joint temperature (Tj) decreases.
The thermal resistance when mounted on PCB
The chip junction temperature during operation is shown by Tj=θJA×Pd+Ta. Junction temperature (Tj) is
limited around 140°C by the thermal protection circuit. Pd is the value when the overheating protection circuit
starts operation.
When you assume the ambient temperature to be 25°C,
140 = θJA × Pd(W) + 25
θJA × Pd = 115
θJA = 115/Pd (°C /W)
Figure 5. Example PCB layout
PCB Material: Two layer glass epoxy substrate
(x=30mm,y=30mm,t=1.0mm,Copper pattern thickness 35um)
AP1153ADSXX (SOT23-5)
Please derate 5.4mW/°C at Pd=677mW above 25°C. Thermal resistance (θJA) is 185°C/W.
Method of obtaining Pd easily
Connect output terminal to GND (short circuited), and measure the input current by increasing the input voltage
gradually up to 10V. The input current will reach the maximum output current, but will decrease soon according to
the chip temperature rising, and will finally enter the state of thermal equilibrium (natural air cooling).
The input current and the input voltage of this state will be used to calculate the Pd.
Pd(mW) ≈ Vin (V) × Iin (mA)
When the device is mounted, mostly achieve: 500mW or more
[AP1153ADSXX]
015000869-E-00 - 24 - 2015/01
25 50 100
Pd(mW)
140C
Pd
0075C
Ta(°C)
2
3
4
D Pd 5
Procedure (When mounted on PCB).
1.Find Pd (Vin × Iin when the output is short-circuited).
2. Plot Pd against 25°C.
3. Connect Pd to the point corresponding to the 140°C with
a straight line.
4. Pull a vertical line from the maximum operating
temperature in your design (e.g., 75°C).
5. Read the value of Pd against the point at which the
vertical line intersects the derating curve(DPd).
6.DPd / (Vinmax-Vout) = Iout (at 75°C)
The maximum output current at the highest operating temperature will be Iout ≈ DPd / (Vinmax-Vout).
Please use the device at low temperature with better radiation. The lower temperature provides better quality.
11.10 ON/OFF Control
It is recommended to turn the regulator off when the circuit following the regulator is not operating. A design with
small electric power loss can be implemented.
Because the control current is small, it is possible to control it directly by CMOS logic.
Control Terminal Voltage (Vcont)
ON/OFF State
Vcont > 1.8V
ON
Vcont < 0.35V
OFF
Parallel Connected ON/OFF Control
Figure 6. Parallel Connection Example
Figure 6 shows the multiple regulators being controlled by a single ON/OFF control signal. There is fear of
overheating, because the power loss of the low voltage side (AP1153ADS20) is large. The series resistor (R) is put
in the input line of the low output voltage regulator in order to prevent over-dissipation. The voltage dropped across
the resistor reduces the large input-to-output voltage across the regulator, reducing the power dissipation in the
device. When the thermal sensor works, a decrease of the output voltage, oscillation, etc. may be observed.
2.0V
5V
3.3V
On/Off Cont.
VIN
AP1153ADS50
R
Vout
AP1153ADS33
AP1153ADS20
[AP1153ADSXX]
015000869-E-00 - 25 - 2015/01
11.11 Noise Bypass
The noise characteristics depend on the capacitance on the Np terminal. A standard value is Cnp=0.001μF. Increase
Cnp in a design with important output noise requirements. The IC will not be damaged even the capacitor value is
increased. The on/off switching speed changes depending on the Np terminal capacitance. The switching speed
slows when the capacitance is large.
11.12 The notes of the evaluation when output terminal is short-circuit to GND
By the resonance phenomenon by Cout (C ingredient) and the short circuit line (L ingredient), which are attached to
an output terminal, an output terminal changes with minus potential. In order that Parasitism Tr arises within the IC,
and a latch rise phenomenon may occur within IC when the worst if it goes into an output terminal's minus side, it
results in damage by fire (white smoke) and breakage of a package. (f0 = 1 / 2π√ (L C))
The above-mentioned resonance phenomenon appears notably in a ceramic capacitor with the small ESR value, etc.
A resonance phenomenon can be reduced by connecting resistance (around 2ohms or more) in series with a short
circuit line. Thereby, the latch rise phenomenon within IC can be prevented.
Generally, when using tantalum or large electrolysis capacitor, the influence of resonance phenomenon can be
reduced due to the large ESR (2ohms or more).
[AP1153ADSXX]
015000869-E-00 - 26 - 2015/01
12. Definition of term
Relating Characteristic
Note Each characteristics will be measured in a short period not to be influenced by joint temperature (Tj).
•Output voltage (Vout)
The output voltage is specified with Vin= VoutTYP+1V and Iout=5mA
•Output current (Iout)
Output current, which can be used continuously (It is the range where overheating protection of the IC does not
operate.)
•Peak maximum output current (IoutPEAK)
The rated output current is specified under the condition where the output voltage drops 90% by increasing the
output current, compared to the value specified at Vin=VoutTYP+1V.
•Dropout voltage (Vdrop)
It is an I/O voltage difference when the circuit stops the stable operation by decreasing the input voltage.It is
measured when the output voltage drops 100mV from its nominal value by decreasing the input voltage
gradually.
•Line Regulation (LinReg)
It is the fluctuations of the output voltage value when the input voltage is changed.
•Load Regulation (LoaReg)
It is the fluctuations of the output voltage value when the input voltage is assumed to be VoutTYP +1V, and the
load current is changed.
•Ripple Rejection (R.R)
Ripple rejection is the ability of the regulator to attenuate the ripple content of the input voltage at the output. It
is measured with the condition of Vin=Vout+1.5V. Ripple rejection is the ratio of the ripple content between
the output vs input and is expressed in dB.
•Standby current (Istandby)
It is an input current, which flows to the control terminal, when the IC is turned off.
Relating Protection Circuit
•Over Current Protection
It is a function to protect the IC by limiting the output current when excessive current flows to IC, such as the
output is connected to GND, etc.
•Thermal Protection
It protects the IC not to exceed the permissible power consumption of the package in case of large power loss
inside the regulator. The output is turned off when
temperature of the chip decreases.
•Reverse Voltage Protection
Reverse voltage protection prevents damage due to the output voltage being higher than the input voltage. This
fault condition can occur when the output capacitor remains charged and the input is reduced to zero, or when an
external voltage higher than the input voltage is applied to the output side. Generally, a LDO regulator has a
diode in the input direction from an output. If an input falls from an output in an input-GND short circuit etc. and
this diode turns on, current will flow for an input terminal from an output terminal. In the case of excessive
current, IC may break. In order to prevent this, it is necessary to connect a Schottky Diode etc. outside. This
product is equipped with reverse bias over-current prevention, and excessive current does not flow in to IC.
Therefore, no need to connect diode outside.
Vin Vout
[AP1153ADSXX]
015000869-E-00 - 27 - 2015/01
13. Recommended External Circuits
■External Circuit
Figure 7. External Circuit
■Test Circuit
Vin
Icont
Vcont
Iin
Cin Iout Vout
1.0F 1.0F
0.001F
A
V
A
++
1 32
5 4
Vin Vout
NpGNDVcont
CL
Cnp
Figure 8. Test Circuit
CL=0.22μF
（CL=1.0μF）
Vcont
Cin=0.1μF
Cnp=0.1μF
VIN
VCONT
VIN
VOUT
GND
NP
To load
[AP1153ADSXX]
015000869-E-00 - 28 - 2015/01
14. Package
■ Outline Dimensions Unit: mm
2.9
1.6
1.1
0.125
0.4
2.8
0 ~0.15 0.1
0.2
5 4
1 3
+0.10
0.05
0.4 0.2
+
+
+
0.95 0.95
R33
Mark
Lot No.
xxx
0.1
+
+0.2
0.1
+0.2
0.3
[AP1153ADSXX]
015000869-E-00 - 29 - 2015/01
15. Revise History
Date
(YY/MM/DD)
Revision
Page
Contents
15/01/21
00
-
First edition
[AP1153ADSXX]
015000869-E-00 - 30 - 2015/01
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information contained in this document without notice. When you consider any use or application of
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