TK68112AMFG0L-C [AKM]
Fixed Positive LDO Regulator;
| 型号： | TK68112AMFG0L-C |
| 厂家： | 
ASAHI KASEI MICROSYSTEMS |
| 描述： | Fixed Positive LDO Regulator 输出元件 调节器 |
| 文件： | 总31页 (文件大小：668K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
[TK681xxAMF/M5/S2]
TK681xxAMF
Capacitor-less, Ultra Small Package, Low IQ
200mA CMOS LDO Regulator
1-. DESCRIPTION
5-. BLOCK DIAGRAM
The TK681xxAMF is a CMOS LDO regulator. The
package is the very small and thin HSON1214-4.
The IC is designed for portable applications with space
requirements.
The IC can supply 200mA output current.
The IC offers low quiescent current.
VIn
VOut
VRef
The IC does not require a noise-bypass capacitor.
The output voltage is internally fixed from 1.2V to 4.2V.
Thermal &
Over Current
Protection
On/Off
Control
VCont
GND
2-. FEATURES
Capacitor-less
(Without input capacitor, output capacitor, and noise-
bypass capacitor)
Package: HSON1214-4
Low quiescent current
Thermal and over current protection
On/Off control
High accuracy
3-. APPLICATIONS
Mobile communication
Battery powered system
Any electronic equipment
4-. PIN CONFIGURATION
HSON1214-4
VOut
1
2
4
3
VIn
GND
VCont
(Top View)
AP-MS0028-E-00
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2011/02
[TK681xxAMF/M5/S2]
6-. ORDERING INFORMATION
T K 6 8 1
A
G 0 L - C
Voltage Code
(Refer to the following
Operating Temp. Range
Code
C : C Rank(standard)
table)
Package Code
MF : HSON1214-4
Solder Composion
Code
G0 : Lead Free
Tape/Reel Code
L : Left type
Output Voltage
Voltage Code
Output Voltage
Voltage Code
Output Voltage
Voltage Code
1.2V
12
2.7V
27
3.2V
32
1.3V
1.5V
1.8V
2.5V
2.6V
13
15
18
25
26
2.8V
2.85V
2.9V
3.0V
3.1V
28
01
29
30
31
3.3V
3.5V
4.0V
33
35
40
*If you need a voltage other than the value listed in the above table, please contact Asahi Kasei Microdevices.
7-. ABSOLUTE MAXIMUM RATINGS
Ta=25C
Parameter
Absolute Maximum Ratings
Input Voltage
Symbol
Rating
Units
Conditions
VIn,MAX
VOut,MAX
VCont,MAX
Tstg
-0.3 ~ 6.0
-0.3 ~ VIn+0.3
-0.3 ~ 6.0
V
V
Output pin Voltage
Control pin Voltage
V
Storage Temperature Range
-55 ~ 150
C
Internal Limited Tj=150°C *,
When mounted on PCB
HSON1214-4
Power Dissipation
PD
mW
400
500
SON2017-6 / SOT23-5
Operating Condition
Operational Temperature Range
Operational Voltage Range
TOP
VOP
-40 ~ 85
1.7 ~ 6.0
C
V
* PD must be decreased at the rate of 3.2mW/C(HSON1214-4) for operation above 25C.
The maximum ratings are the absolute limitation values with the possibility of the IC being damaged.
When operation exceeds this standard quality can not be guaranteed.
AP-MS0028-E-00
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2011/02
[TK681xxAMF/M5/S2]
8-. ELECTRICAL CHARACTERISTICS
The parameters with min. or max. values will be guaranteed at Ta=Tj=25C with test when manufacturing or
SQC(Statistical Quality Control) methods. The operation between -40 ~ 85C is guaranteed by design.
VIn=VOut,TYP+1V, VCont=1.2V, Ta=Tj=25°C
Value
TYP
Parameter
Symbol
Units
Conditions
MIN
MAX
Output Voltage
VOut
LinReg
LoaReg
VDrop
V
IOut=5mA
Refer to TABLE 1
Line Regulation
-
0.0
4.0
mV
mV
mV
mA
µA
µA
µA
VIn=1V
Load Regulation
Refer to TABLE 1
Refer to TABLE 1
Refer to TABLE 1
Refer to TABLE 1
VOut=VOut,TYP0.9
IOut=0mA, VCont=VIn
VCont=0V
Dropout Voltage *1
Maximum Load Current *2
Quiescent Current
Standby Current
IOut,MAX
IQ
IStandby
IGND
210
350
12
-
-
-
-
24
0.1
60
0.01
30
GND Pin Current
Control Terminal
Control Current
IOut=50mA, VCont=VIn
ICont
-
1.2
-
0.7
1.4
-
µA
V
VCont=1.2V
-
-
VOut On state
VOut Off state
Control Voltage
VCont
0.2
V
Reference Value
Output Voltage / Temp.
Output Noise Voltage
(TK68128A)
-
-
100
45
-
-
ppm/°C IOut=5mA
VOut/Ta
COut=1.0µF , IOut=30mA ,
µVrms
VNoise
BPF=400Hz~80kHz
Ripple Rejection
(TK68128A)
COut=1.0µF ,
RR
tr
-
-
52
85
-
-
dB
IOut=10mA , f=1kHz
COut=1.0µF ,
VCont : Pulse Wave (100Hz) ,
VCont On VOut95% point
Rise Time
µs
(TK68128A)
*1: For VOut 1.7V, no regulations.
*2: The maximum output current is limited by power dissipation.
The maximum load current is the current where the output voltage decreases to 90% by increasing the output current at
Tj=25°C, compared to the output voltage specified at VIn=VOut,TYP+1V. The maximum load current indicates the current
at which over current protection turn on.
For all output voltage products, the maximum output current for normal operation without operating any protection is
200mA. Accordingly, LoaReg and VDrop are specified on the condition that IOut is less than 200mA.
General Note
Parameters with only typical values are just reference. (Not guaranteed)
The noise level is dependent on the output voltage, the capacitance and capacitor characteristics.
AP-MS0028-E-00
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2011/02
[TK681xxAMF/M5/S2]
TABLE 1. Preferred Product (TK681xxAMF)
Load Regulation
Dropout Voltage
Output Voltage
Part Number
IOut=5 ~ 100mA IOut=5 ~ 200mA IOut=100mA
IOut=200mA
MIN TYP MAX TYP MAX TYP MAX TYP MAX TYP MAX
V
V
V
mV
11
11
11
12
12
13
13
13
13
13
13
13
13
13
14
14
mV
44
44
44
48
48
52
52
52
52
52
52
52
52
52
56
56
mV
21
21
22
22
24
24
24
24
24
25
25
25
25
25
26
27
mV
84
mV
-
mV
-
mV
-
mV
-
TK68112AMF
TK68113AMF
TK68115AMF
TK68118AMF
TK68125AMF
TK68126AMF
TK68127AMF
TK68128AMF
TK68101AMF
TK68129AMF
TK68130AMF
TK68131AMF
TK68132AMF
TK68133AMF
TK68135AMF
TK68140AMF
1.175 1.200 1.225
1.275 1.300 1.325
1.475 1.500 1.525
1.775 1.800 1.825
2.475 2.500 2.525
2.574 2.600 2.626
2.673 2.700 2.727
2.772 2.800 2.828
2.821 2.850 2.879
2.871 2.900 2.929
2.970 3.000 3.030
3.069 3.100 3.131
3.168 3.200 3.232
3.267 3.300 3.333
3.465 3.500 3.535
3.960 4.000 4.040
84
-
-
-
-
88
-
-
-
-
88
130
95
90
90
85
85
85
85
80
80
80
75
70
205
145
145
140
135
135
135
130
130
125
125
120
115
265
185
180
175
170
170
165
165
160
160
155
150
140
445
310
300
295
290
285
285
280
275
270
265
255
240
96
96
96
96
96
100
100
100
100
100
104
108
Notice.
Please contact your authorized Asahi Kasei Microdevises representative for voltage availability.
AP-MS0028-E-00
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2011/02
[TK681xxAMF/M5/S2]
9-. TEST CIRCUIT
Test circuit for electrical characteristic
IIn
_
CIn
=1.0F
A
VIn
VOut
VCont GND
ICont
VCont
Notice.
COut
=1.0F
The limit value of electrical characteristics is applied when
CIn=1.0F(Ceramic), COut=1.0F(Ceramic).
But CIn, and COut can be used with both ceramic and
tantalum capacitors. Also, the IC provides stable operation
even if without using capacitor.
_
V
VIn=
VOut,TYP+1.0V
IOut
=5mA
VOut
_
A
VIn
VOut
VCont GND
ICont
VCont
VOut vs VIn
VDrop vs IOut
VOut vs IOut
VOut vs IOut
VOut vs Ta
VDrop vs Ta
CIn
=1.0F
COut
=1.0F
_
V
VIn
IOut
VOut
_
A
IOut,MAX vs Ta
ICont vs VCont , VOut vs VCont
ICont vs Ta
VCont vs Ta
VNoise vs VIn
VNoise vs IOut
VNoise vs VOut
VNoise vs Frequency
IIn
_
CIn
=1.0F
A
VIn
VOut
VCont GND
ICont
VCont
IQ vs VIn
IStandby vs VIn
IQ vs Ta
Open
COut
=1.0F
VIn=
VOut,TYP+1.0V
_
A
VIn
VOut
VCont GND
ICont IGND
VCont
IGND vs IOut
IGND vs Ta
CIn
=1.0F
COut
=1.0F
VIn=
IOut
_
A
_
A
VOut,TYP+1.0V
AP-MS0028-E-00
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2011/02
[TK681xxAMF/M5/S2]
VIn=
VOut,TYP+1.5V
VIn
VOut
RR vs VIn
RR vs Frequency
RR vs Frequency
Vripple
500mVP-P
=
COut
=1.0F
VCont GND
IOut
=10mA
VCont
=1.2V
VOut,TYP+2V
VIn
VOut
Line Transient
Load Transient
On/Off Transient
COut
=1.0F
VOut,TYP+1V
VCont GND
_
V
IOut
VOut
VOut
VOut
VCont
=1.2V
VIn
VOut
CIn
=1.0F
COut
=1.0F
VCont GND
_
V
VIn=
VOut,TYP+1.0V
IOut
VCont
=1.2V
VIn
VOut
CIn
=1.0F
COut
=1.0F
VCont GND
_
V
VIn=
VOut,TYP+1.0V
IOut=
30mA
VCont
=0V 1.2V
AP-MS0028-E-00
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2011/02
[TK681xxAMF/M5/S2]
10-. TYPICAL CHARACTERISTICS
10-1-. DC CHARACTERISTICS
VOut vs VIn (TK68112AMF)
VOut vs VIn (TK68112AMF)
100
200
IOut=0, 5, 50, 100, 150, 200mA
IOut=5mA
80
60
160
120
80
40
20
40
0
0
-20
-40
-60
-80
-100
-40
-80
-120
-160
-200
0
1
2
3
4
5
6
-100
0
100 200 300 400 500 600 700 800
VIn-VOut [mV]
VIn [V]
VOut vs VIn (TK68128AMF)
VOut vs VIn (TK68128AMF)
10
5
40
IOut=0, 5, 50, 100, 150, 200mA
20
IOut=5mA
0
0
-20
-5
-10
-15
-20
-25
-30
-40
-60
-80
-100
0
1
2
3
4
5
6
-100
0
100
200
300
VIn [V]
VIn-VOut [mV]
VOut vs VIn (TK68142AMF)
VOut vs VIn (TK68142AMF)
10
5
40
IOut=0, 5, 50, 100, 150, 200mA
20
IOut=5mA
0
0
-20
-5
-10
-15
-20
-25
-30
-40
-60
-80
-100
0
1
2
3
4
5
6
-100
0
100
200
300
VIn [V]
VIn-VOut [mV]
AP-MS0028-E-00
- 7 -
2011/02
[TK681xxAMF/M5/S2]
VOut vs IOut (TK68112AMF)
2
1.5
1
0.5
0
0
100
200
300
300
300
400
400
400
500
500
500
IOut [mA]
VDrop vs IOut (TK68128AMF)
VOut vs IOut (TK68128AMF)
0
-50
4
3.5
3
-100
-150
-200
-250
-300
-350
-400
2.5
2
1.5
1
0.5
0
0
100
200
IOut [mA]
0
50
100
150
200
250
IOut [mA]
VDrop vs IOut (TK68142AMF)
VOut vs IOut (TK68142AMF)
0
-50
6
5
4
3
2
1
0
-100
-150
-200
-250
-300
-350
-400
0
100
200
IOut [mA]
0
50
100
150
200
250
IOut [mA]
AP-MS0028-E-00
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2011/02
[TK681xxAMF/M5/S2]
VOut vs IOut (TK68112AMF)
VOut vs Ta (TK68112AMF)
10
5
100
80
0
60
-5
40
-10
-15
-20
-25
-30
-35
-40
20
0
-20
-40
-60
-80
-100
-50
-25
0
25
50
50
50
75
75
75
100
100
100
0
50
100
150
200
200
200
250
250
250
Ta [°C]
IOut [mA]
VOut vs IOut (TK68128AMF)
VOut vs Ta (TK68128AMF)
10
5
100
80
0
60
-5
40
-10
-15
-20
-25
-30
-35
-40
20
0
-20
-40
-60
-80
-100
-50
-25
0
25
0
50
100
150
Ta [°C]
IOut [mA]
VOut vs IOut (TK68142AMF)
VOut vs Ta (TK68142AMF)
10
5
100
80
0
60
-5
40
-10
-15
-20
-25
-30
-35
-40
20
0
-20
-40
-60
-80
-100
-50
-25
0
25
0
50
100
150
Ta [°C]
IOut [mA]
AP-MS0028-E-00
- 9 -
2011/02
[TK681xxAMF/M5/S2]
IOut,MAX vs Ta (TK68112AMF)
400
300
200
-50
-25
0
25
50
50
50
75
75
75
100
100
100
Ta [°C]
VDrop vs Ta (TK68128AMF)
IOut,MAX vs Ta (TK68128AMF)
0
-50
400
IOut=100mA
IOut=200mA
-100
-150
-200
-250
-300
-350
-400
300
200
-50
-25
0
25
-50
-25
0
25
50
75
100
Ta [°C]
Ta [°C]
VDrop vs Ta (TK68142AMF)
IOut,MAX vs Ta (TK68142AMF)
0
-50
400
IOut=100mA
IOut=200mA
-100
-150
-200
-250
-300
-350
-400
300
200
-50
-25
0
25
50
75
100
-50
-25
0
25
Ta [°C]
Ta [°C]
AP-MS0028-E-00
- 10 -
2011/02
[TK681xxAMF/M5/S2]
IQ vs VIn (TK68112AMF)
IStandby vs VIn (TK68112AMF)
50
10
9
8
7
6
5
4
3
2
1
0
VCont=0V
VCont=VIn
40
30
20
10
0
0
1
2
3
4
4
4
5
6
6
6
0
1
2
3
4
4
4
5
6
6
6
VIn [V]
VIn [V]
IQ vs VIn (TK68128AMF)
IStandby vs VIn (TK68128AMF)
50
10
9
8
7
6
5
4
3
2
1
0
VCont=VIn
VCont=0V
40
30
20
10
0
0
1
2
3
5
0
1
2
3
5
VIn [V]
VIn [V]
IQ vs VIn (TK68142AMF)
IStandby vs VIn (TK68142AMF)
50
10
9
8
7
6
5
4
3
2
1
0
VCont=VIn
VCont=VIn
40
30
20
10
0
0
1
2
3
5
0
1
2
3
5
VIn [V]
VIn [V]
AP-MS0028-E-00
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2011/02
[TK681xxAMF/M5/S2]
IGND vs IOut (TK68112AMF)
IQ vs Ta (TK68112AMF)
20
18
16
14
12
10
8
200
180
160
140
120
100
80
VCont=VIn
VCont=VIn
6
60
4
40
2
20
0
0
-50
-25
0
25
50
50
50
75
100
100
100
0
50
100
150
150
150
200
250
250
250
IOut [mA]
Ta [°C]
IGND vs IOut (TK68128AMF)
IQ vs Ta (TK68128AMF)
20
18
16
14
12
10
8
200
180
160
140
120
100
80
VCont=VIn
VCont=VIn
6
60
4
40
2
20
0
0
-50
-25
0
25
75
0
50
100
IOut [mA]
200
Ta [°C]
IGND vs IOut (TK68142AMF)
IQ vs Ta (TK68142AMF)
20
18
16
14
12
10
8
200
180
160
140
120
100
80
VCont=VIn
VCont=VIn
6
60
4
40
2
20
0
0
-50
-25
0
25
75
0
50
100
IOut [mA]
200
Ta [°C]
AP-MS0028-E-00
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2011/02
[TK681xxAMF/M5/S2]
ICont vs VCont, VOut vs VCont (TK68112AMF)
IGND vs Ta (TK68112AMF)
2
1.5
1
2
100
90
80
70
60
50
40
30
20
10
0
VCont=VIn , IOut=50mA
1.5
1
VOut
0.5
0
0.5
0
ICont
-50
-25
0
25
50
75
100
100
100
0
0.5
1
1.5
2
VCont [V]
Ta [°C]
IGND vs Ta (TK68128AMF)
ICont vs VCont, VOut vs VCont (TK68128AMF)
2
4
3
2
1
0
100
90
80
70
60
50
40
30
20
10
0
VCont=VIn , IOut=50mA
VOut
1.5
1
0.5
ICont
0
-50
-25
0
25
50
75
0
0.5
1
1.5
2
VCont [V]
Ta [°C]
IGND vs Ta (TK68142AMF)
ICont vs VCont, VOut vs VCont (TK68142AMF)
2
8
6
4
2
0
100
90
80
70
60
50
40
30
20
10
0
VCont=VIn , IOut=50mA
1.5
VOut
1
0.5
ICont
0
-50
-25
0
25
50
75
0
0.5
1
1.5
2
VCont [V]
Ta [°C]
AP-MS0028-E-00
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2011/02
[TK681xxAMF/M5/S2]
VCont vs Ta (TK68112AMF)
ICont vs Ta (TK681xxAMF)
1.4
1.2
1
1
VCont=1.2V
0.75
0.5
0.25
0
0.8
0.6
0.4
0.2
0
-50
-25
0
25
50
75
100
-50
-25
0
25
50
50
50
75
75
75
100
100
100
Ta [°C]
Ta [°C]
VCont vs Ta (TK68128AMF)
1.4
1.2
1
0.8
0.6
0.4
0.2
0
-50
-25
0
25
Ta [°C]
VCont vs Ta (TK68142AMF)
1.4
1.2
1
0.8
0.6
0.4
0.2
0
-50
-25
0
25
Ta [°C]
AP-MS0028-E-00
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2011/02
[TK681xxAMF/M5/S2]
10-2-. AC CHARACTERISTICS
RR vs VIn (TK68112AMF)
RR vs Frequency (TK68112AMF)
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
0
Vripple=0.1Vp-p, f=1kHz
IOut=10mA
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
COut=1.0F(tant.)
COut=1.0F(cer.)
IOut= 200mA
150mA
100mA
50mA
10mA
0
0.5
1
1.5
2
2.5
3
3.5
100
1k
10k
100k
1M
Frequency [Hz]
VIn-VOut,TYP [V]
RR vs VIn (TK68128AMF)
RR vs Frequency (TK68128AMF)
0
-10
-20
-30
-40
0
Vripple=0.1Vp-p, f=1kHz
IOut=10mA
-10
-20
-30
-40
COut=1.0F(tant.)
-50
-60
-50
-60 IOut= 200mA
150mA
100mA
50mA
COut=1.0F(cer.)
-70
-70
-80
-80
-90
10mA
-90
-100
-100
0
0.5
1
1.5
2
2.5
3
3.5
100
1k
10k
100k
1M
Frequency [Hz]
VIn--VOut,TYP [V]
RR vs VIn (TK68142AMF)
RR vs Frequency (TK68142AMF)
0
-10
-20
-30
-40
0
-10
-20
-30
-40
-50
Vripple=0.1Vp-p, f=1kHz
IOut=10mA
COut=1.0F(tant.)
-50
-60
-60
IOut= 200mA
COut=1.0F(cer.)
-70
-70
-80
150mA
100mA
50mA
-80
-90
-90
10mA
-100
-100
100
1k
10k
100k
1M
0
0.5
1
1.5
2
2.5
Frequency [Hz]
VIn--VOut,TYP [V]
AP-MS0028-E-00
- 15 -
2011/02
[TK681xxAMF/M5/S2]
RR vs Frequency (TK68112AMF)
The ripple rejection (RR) characteristic depends on the
characteristic and the capacitance value of the capacitor
connected to the output side. The RR characteristic of
50kHz or more varies greatly with the capacitor on the
output side and PCB pattern. If necessary, please confirm
stability of your design.
0
-10
-20
-30
-40
-50
-60
IOut=10mA
COut=0.47F(cer.)
0.68F(cer.)
-70
-80
1.0 F(cer.)
-90
-100
100
1k
10k
100k
1M
Frequency [Hz]
RR vs Frequency (TK68128AMF)
0
-10
-20
-30
-40
-50
-60
IOut=10mA
COut=0.47F(cer.)
0.68F(cer.)
-70
-80
1.0 F(cer.)
-90
-100
100
1k
10k
100k
1M
Frequency [Hz]
RR vs Frequency (TK68142AMF)
0
-10
-20
-30
-40
-50
-60
IOut=10mA
COut=0.47F(cer.)
0.68F(cer.)
-70
-80
1.0 F(cer.)
-90
-100
100
1k
10k
100k
1M
Frequency [Hz]
AP-MS0028-E-00
- 16 -
2011/02
[TK681xxAMF/M5/S2]
VNoise vs VIn (TK68112AMF)
VNoise vs IOut (TK68112AMF)
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
IOut=30mA
1
2
3
4
5
6
0
0
50
100
150
200
200
200
250
250
250
VIn [V]
IOut [mA]
VNoise vs VIn (TK68128AMF)
VNoise vs IOut (TK68128AMF)
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
IOut=30mA
0
50
100
150
2.5
3
3.5
4
4.5
5
5.5
6
VIn [V]
IOut [mA]
VNoise vs VIn (TK68142AMF)
VNoise vs IOut (TK68142AMF)
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
IOut=30mA
4
4.5
5
5.5
6
0
50
100
150
VIn [V]
IOut [mA]
AP-MS0028-E-00
- 17 -
2011/02
[TK681xxAMF/M5/S2]
VNoise vs Frequency (TK68112AMF)
VNoise vs VOut (TK681xxAMF)
100
90
80
70
60
50
40
30
20
10
0
10
IOut=30mA
IOut=10mA
1
0.1
0.01
10
100
1k
10k
100k
100k
100k
1
1.5
2
2.5
3
3.5
4
4.5
VOut [V]
Frequency [Hz]
VNoise vs Frequency (TK68128AMF)
10
IOut=10mA
1
0.1
0.01
10
100
1k
10k
Frequency [Hz]
VNoise vs Frequency (TK68142AMF)
10
IOut=10mA
1
0.1
0.01
10
100
1k
10k
Frequency [Hz]
AP-MS0028-E-00
- 18 -
2011/02
[TK681xxAMF/M5/S2]
10-3-. TRANSIENT CHARACTERISTICS
Line Transient
Load Transient (IOut=5100mA)
(TK68112AMF)
(TK68112AMF)
IOut
100mA
100mA
100mA
100mA/div
100mV/div
VIn
1V/div
3.2V
5mA
2.2V
VOut
IOut=50, 100, 200mA
COut=0.47, 0.68, 1.0 F
VOut
50mV/div
20sec/div
20sec/div
Time
Time
Line Transient
Load Transient (IOut=5100mA)
(TK68128AMF)
(TK68128AMF)
IOut
100mA/div
100mV/div
VIn
1V/div
4.8V
5mA
3.8V
IOut=50, 100, 200mA
VOut
COut=0.47, 0.68, 1.0F
VOut
50mV/div
20sec/div
20sec/div
Time
Time
Line Transient
Load Transient (IOut=5100mA)
(TK68142AMF)
(TK68142AMF)
IOut
100mA/div
100mV/div
VIn
1V/div
6.2V
5mA
5.2V
IOut=50, 100, 200mA
VOut
COut=0.47, 0.68, 1.0F
VOut
50mV/div
20sec/div
20sec/div
Time
Time
AP-MS0028-E-00
- 19 -
2011/02
[TK681xxAMF/M5/S2]
Load Transient (IOut=0 or 50mA)
(TK68112AMF)
=50mA) (TK68128AMF/M5)
100mA
100mA
IOut
IOut
100mA/div
200mV/div
0 or 5mA
100mA/div
0 or 5mA
0 100mA
0 100mA
VOut
VOut
200mV/div
5
100mA
5 100mA
10msec/div
Time
10sec/div
Time
Load Transient (IOut
=50mA) (TK68128AMF/M5)
Load Transient (IOut=0 or 50mA)
(TK68128AMF)
100mA
100mA
IOut
IOut
100mA/div
200mV/div
0 or 5mA
100mA/div
0 or 5mA
0 100mA
0 100mA
VOut
VOut
200mV/div
5 100mA
5 100mA
10msec/div
Time
10sec/div
Time
Load Transient (IOut
=50mA) (TK68128AMF/M5)
Load Transient (IOut=0 or 50mA)
(TK68142AMF)
100mA
100mA
IOut
IOut
100mA/div
200mV/div
0 or 5mA
100mA/div
0 or 5mA
0 100mA
0 100mA
VOut
VOut
200mV/div
5 100mA
5 100mA
10msec/div
Time
10sec/div
Time
AP-MS0028-E-00
- 20 -
2011/02
[TK681xxAMF/M5/S2]
On/Off Transient (VCont=1.20V)
On/Off Transient (VCont=01.2V)
(TK68112AMF)
(TK68112AMF)
IOut=30mA
IOut=30mA
VCont
VCont
1V/div
1V/div
COut=0.47, 0.68, 1.0F
VOut
VOut
500mV/div
200mA/div
500mV/div
200mA/div
COut=0.47, 0.68, 1.0 F
IIn
IIn
20sec/div
100sec/div
Time
Time
On/Off Transient (VCont=01.2V)
On/Off Transient (VCont=1.20V)
(TK68128AMF)
(TK68128AMF)
IOut=30mA
IOut=30mA
VCont
VCont
1V/div
1V/div
COut=0.47, 0.68, 1.0F
VOut
VOut
1V/div
1V/div
COut=0.47, 0.68, 1.0 F
IIn
IIn
200mA/div
200mA/div
40sec/div
100sec/div
Time
Time
On/Off Transient (VCont=01.2V)
On/Off Transient (VCont=1.20V)
(TK68142AMF)
(TK68142AMF)
IOut=30mA
IOut=30mA
VCont
VCont
1V/div
1V/div
COut=0.47, 0.68, 1.0F
VOut
VOut
2V/div
2V/div
COut=0.47, 0.68, 1.0 F
IIn
IIn
200mA/div
200mA/div
40sec/div
100sec/div
Time
Time
AP-MS0028-E-00
- 21 -
2011/02
[TK681xxAMF/M5/S2]
11-. PIN DESCRIPTION
Pin No.
TK681xxAMF
2
Pin
Description
Internal Equivalent Circuit
Description
GND Terminal
GND
Control Terminal
ESD
protection
VCont > 1.2V : On
VCont < 0.2V : Off
VCont
The
resistor
1.65M) is built-
in.
pull-down
(about
3
VCont
1.65M
Output Terminal
VIn
VOut
1
4
VOut
ESD
protection
VIn
Input Terminal
AP-MS0028-E-00
- 22 -
2011/02
[TK681xxAMF/M5/S2]
RR vs Frequency (TK68112AMF)
12-. APPLICATIONS INFORMATION
12-1-. External Capacitor
General linear regulators require input capacitor and
output capacitor in order to maintain the regulator’s loop
stability.
The TK681xxAMF provides stable operation without
input capacitor and output capacitor.
Refer to the following data that measured without
external capacitor.
The other electrical characteristics are equal to using
external capacitor.
Transient characteristics (influence of load deviation)
improve by using output capacitor (see the “Load
Transient” on page 16).
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
Capacitor-less
IOut=10mA
100k
100
1k
10k
1M
Frequency [Hz]
Because a situation changes with each application, please
confirm to operation in your design.
RR vs Frequency (TK68128AMF)
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
Capacitor-less
IOut=10mA
100k 1M
100
1k
10k
Frequency [Hz]
RR vs Frequency (TK68142AMF)
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
Capacitor-less
IOut=10mA
100k 1M
100
1k
10k
Frequency [Hz]
AP-MS0028-E-00
- 23 -
2011/02
[TK681xxAMF/M5/S2]
VNoise vs IOut (TK68112AMF)
Load Transient (IOut=5100mA)
(TK68112AMF)
100
90
80
70
60
50
40
30
20
10
0
Capacitor-less
Capacitor-less
IOut
100mA
100mA/div
1V/div
5mA
VOut
0
50
100
150
200
250
250
250
10sec/div
IOut [mA]
Time
VNoise vs IOut (TK68128AMF)
Load Transient (IOut=5100mA)
(TK68128AMF)
100
90
80
70
60
50
40
30
20
10
0
Capacitor-less
100mA
Capacitor-less
IOut
100mA/div
1V/div
5mA
VOut
0
50
100
150
200
10sec/div
IOut [mA]
Time
VNoise vs IOut (TK68142AMF)
Load Transient (IOut=5100mA)
(TK68142AMF)
100
90
80
70
60
50
40
30
20
10
0
Capacitor-less
100mA
Capacitor-less
IOut
100mA/div
1V/div
5mA
VOut
0
50
100
150
200
10sec/div
IOut [mA]
Time
AP-MS0028-E-00
- 24 -
2011/02
[TK681xxAMF/M5/S2]
On/Off Transient (VCont=1.20V)
On/Off Transient (VCont=01.2V)
(TK68112AMF)
(TK68112AMF)
Capacitor-less
VCont
VCont
1V/div
1V/div
Capacitor-less
VOut
VOut
500mV/div
200mA/div
500mV/div
200mA/div
IIn
IIn
IOut=30mA
IOut=30mA
20sec/div
100sec/div
Time
Time
On/Off Transient (VCont=01.2V)
On/Off Transient (VCont=1.20V)
(TK68128AMF)
(TK68128AMF)
Capacitor-less
VCont
VCont
1V/div
1V/div
Capacitor-less
VOut
VOut
1V/div
1V/div
IIn
IIn
200mA/div
200mA/div
IOut=30mA
IOut=30mA
40sec/div
100sec/div
Time
Time
On/Off Transient (VCont=01.2V)
On/Off Transient (VCont=1.20V)
(TK68142AMF)
(TK68142AMF)
Capacitor-less
VCont
VCont
1V/div
1V/div
Capacitor-less
VOut
VOut
2V/div
2V/div
IIn
IIn
200mA/div
200mA/div
IOut=30mA
IOut=30mA
40sec/div
100sec/div
Time
Time
AP-MS0028-E-00
- 25 -
2011/02
[TK681xxAMF/M5/S2]
Fig12-2: Derating Curve (TK681xxAMF)
12-2-. Layout
PD(mW)
-7.2mW/°C
PCB size
図12-1: Layout example (TK681xxAMF)
900
VIn
VCont
(30mm×30mm×1mm)
-3.2mW/°C
PCB size
(7mm×8mm×0.8mm)
400
VOut
GND
(Top View)
PCB Material: Glass epoxy
Size: 30mm×30mm×1mm
25
50
100
(85°C)
150°C
VOut
VCont
The package loss is limited at the temperature that the
internal temperature sensor works (about 150C).
Therefore, the package loss is assumed to be an internal
limitation. There is no heat radiation characteristic of the
package unit assumed because of its small size. Heat is
carried away from the device by being mounted on the
PCB. This value is directly effected by the material and
the copper pattern etc. of the PCB. The losses are
approximately 400mW (TK681xxAMF). Enduring these
losses becomes possible in a lot of applications operating
at 25C.
VIn
GND
(Top View)
PCB Material: Glass epoxy
Size: 7mm×8mm×0.8mm
The overheating protection circuit operates when the
junction temperature reaches 150C (this happens when
the regulator is dissipating excessive power, outside
temperature is high, or heat radiation is bad). The output
current and the output voltage will drop when the
protection circuit operates. However, operation begins
again as soon as the output voltage drops and the
temperature of the chip decreases.
Please do derating with 3.2mW/C(PCB size: 7mm×8mm
×0.8mm), 7.2mW/C(PCB size: 30mm×30mm×1mm), at
PD=400mW(PCB size: 7mm×8mm×0.8mm), 900mW
(PCB size: 30mm×30mm×1mm), and 25C or more
(TK681xxAMF).
How to determine the thermal resistance when
mounted on PCB
The thermal resistance when mounted is expressed as
follows:
Tj=jaPD+Ta
Tj of IC is set around 150C. PD is the value when the
thermal sensor is activated.
If the ambient temperature is 25C, then:
150=jaPD+25
ja=125/PD (C /mW)
AP-MS0028-E-00
- 26 -
2011/02
[TK681xxAMF/M5/S2]
Fig12-4: The use of On/Off control
PD is easily calculated.
A simple way to determine PD is to calculate VInIIn
when the output side is shorted. Input current gradually
falls as output voltage rises after working thermal
shutdown. You should use the value when thermal
equilibrium is reached.
Vsat
REG
On/Off Cont.
Fig12-3: How to determine DPD
PD (mW)
Control Terminal Voltage ((VCont
)
On/Off State
VCont > 1.2V
VCont < 0.2V
On
Off
2
PD
Parallel Connected On/Off Control
DPD
3
5
Fig12-5: The example of parallel connected IC
TK68142A
VIn
VOut
4
4.2V
25
50
75
100 125 150
Ta (°C)
Procedure (When mounted on PCB.)
1. Find PD (VInIIn when the output side is short-
circuited).
2.8V
1.5V
TK68128A
TK68115A
2. Plot PD against 25C.
3. Connect PD to the point corresponding to the 150C
with a straight line.
4. In design, take a vertical line from the maximum
operating temperature (e.g., 75C) to the derating
curve.
On/Off
Cont.
5. Read off the value of PD against the point at which the
vertical line intersects the derating curve. This is taken
as the maximum power dissipation DPD.
6. DPD (VIn,MAXVOut)=IOut (at 75C)
The above figure is multiple regulators being controlled
by a single On/Off control signal. There is concern of
overheating, because the power loss of the low voltage
side IC (TK68115AMF) 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.
The maximum output current at the highest operating
temperature will be IOut DPD (VIn,MAX-VOut).
Please use the device at low temperature with better
radiation. The lower temperature provides better quality.
12-3-. On/Off Control
It is recommended to turn the regulator Off when the
circuit following the regulator is not operating. A design
with little electric power loss can be implemented. We
recommend the use of the On/Off control of the regulator
without using a high side switch to provide an output
from the regulator. A highly accurate output voltage with
low voltage drop is obtained.
Because the control current is small, it is possible to
control it directly by CMOS logic.
AP-MS0028-E-00
- 27 -
2011/02
[TK681xxAMF/M5/S2]
12-4-. Definition of term
Characteristics
Protections
Over Current Sensor
The over current sensor protects the device when there is
excessive output current. It also protects the device if the
output is accidentally connected to ground.
Output Voltage (VOut
)
The output voltage is specified with VIn=(VOutTYP+1V)
and IOut=5mA.
Maximum Output Current (IOut, MAX
)
Thermal Sensor
The rated output current is specified under the condition
where the output voltage drops to 90% of the value
specified with IOut=5mA. The input voltage is set to
VOutTYP+1V and the current is pulsed to minimize
temperature effect.
The thermal sensor protects the device in case the
junction temperature exceeds the safe value (Tj=150C).
This temperature rise can be caused by external heat,
excessive power dissipation caused by large input to
output voltage drops, or excessive output current. The
regulator will shut off when the temperature exceeds the
safe value. As the junction temperatures decrease, the
regulator will begin to operate again. Under sustained
fault conditions, the regulator output will oscillate as the
device turns off then resets. Damage may occur to the
device under extreme fault.
Dropout Voltage (VDrop
)
The dropout voltage is the difference between the input
voltage and the output voltage at which point the
regulator starts to fall out of regulation. Below this value,
the output voltage will fall as the input voltage is reduced.
It is dependent upon the output voltage, the load current,
and the junction temperature.
Please prevent the loss of the regulator when this
protection operates, by reducing the input voltage or
providing better heat efficiency.
Line Regulation (LinReg)
Line regulation is the ability of the regulator to maintain a
constant output voltage as the input voltage changes. The
line regulation is specified as the input voltage is changed
ESD
MM : 200pF 0 150V or more
HBM : 100pF 1.5k 2000V or more
from VIn=VOut,TYP+1V to VIn=6V. It is
measurement to minimize temperature effect.
a pulse
Load Regulation (LoaReg)
Load regulation is the ability of the regulator to maintain
a constant output voltage as the load current changes. It is
a pulsed measurement to minimize temperature effects
with the input voltage set to VIn=VOut,TYP+1V. The load
regulation is specified under an output current step
condition of 1mA to 50mA.
Ripple Rejection (RR)
Ripple rejection is the ability of the regulator to attenuate
the ripple content of the input voltage at the output. It is
specified with 500mVP-P, 1kHz super-imposed on the
input voltage, where VIn=VOut,TYP+1.5V. Ripple rejection
is the ratio of the ripple content of the output vs. input and
is expressed in dB.
Standby Current (IStandby
)
Standby current is the current which flows into the
regulator when the output is turned off by the control
function (VCont=0V).
AP-MS0028-E-00
- 28 -
2011/02
[TK681xxAMF/M5/S2]
13-. PACKAGE OUTLINE
4-Lead-Small Outline Non-Leaded Package with Heat Sink
: HSON1214-4
0.25
4
3
1 Pin Mark
1
2
0.5
+
0.05
1.2
1.00
Reference Mount Pad
+0.05
+
0.2
0.13
0.03
(0.075)
1
2
4
3
0.5
0.9+0.05
Unit : mm
Package Structure and Others
Package Material
Terminal Material : Copper Alloy
Terminal Finish : Ni/Pd/Au
: Epoxy Resin
Caution in Printed Circuit Board Layout
In addition to the normal pins, this plastic package has exposed metal tabs.
This tab is electrically connected to the GND of internal chip.
Avoid electrical contact with this tab from external print traces, adjacent components other than GND, etc.
This tab is recommended to be solder-mounted so as to enhance heat release.
AP-MS0028-E-00
- 29 -
2011/02
[TK681xxAMF/M5/S2]
Marking
Part Number
Marking Code
Part Number
Marking Code
Part Number
Marking Code
TK68112AMF
TK68113AMF
TK68115AMF
TK68118AMF
TK68125AMF
TK68126AMF
B12
TK68127AMF
B27
TK68132AMF
B32
B13
B15
B18
B25
B26
TK68128AMF
TK68101AMF
TK68129AMF
TK68130AMF
TK68131AMF
B28
B01
B29
B30
B31
TK68133AMF
TK68135AMF
TK68140AMF
B33
B35
B40
AP-MS0028-E-00
- 30 -
2011/02
[TK681xxAMF/M5/S2]
IMPORTANT NOTICE
These products and their specifications are subject to change without notice.
When you consider any use or application of these products, please make inquiries the sales office of
Asahi Kasei Microdevices Corporation (AKM) or authorized distributors as to current status of the
products.
Descriptions of external circuits, application circuits, software and other related information contained
in this document are provided only to illustrate the operation and application examples of the
semiconductor products. You are fully responsible for the incorporation of these external circuits,
application circuits, software and other related information in the design of your equipments. AKM
assumes no responsibility for any losses incurred by you or third parties arising from the use of these
information herein. AKM assumes no liability for infringement of any patent, intellectual property, or
other rights in the application or use of such information contained herein.
Any export of these products, or devices or systems containing them, may require an export license or
other official approval under the law and regulations of the country of export pertaining to customs
and tariffs, currency exchange, or strategic materials.
AKM products are neither intended nor authorized for use as critical componentsNote1) in any safety,
life support, or other hazard related device or systemNote2), and AKM assumes no responsibility for
such use, except for the use approved with the express written consent by Representative Director of
AKM. As used here:
Note1) A critical component is one whose failure to function or perform may reasonably be expected to
result, whether directly or indirectly, in the loss of the safety or effectiveness of the device or system
containing it, and which must therefore meet very high standards of performance and reliability.
Note2) A hazard related device or system is one designed or intended for life support or maintenance of
safety or for applications in medicine, aerospace, nuclear energy, or other fields, in which its failure to
function or perform may reasonably be expected to result in loss of life or in significant injury or damage to
person or property.
It is the responsibility of the buyer or distributor of AKM products, who distributes, disposes of, or
otherwise places the product with a third party, to notify such third party in advance of the above
content and conditions, and the buyer or distributor agrees to assume any and all responsibility and
liability for and hold AKM harmless from any and all claims arising from the use of said product in
the absence of such notification.
AP-MS0028-E-00
- 31 -
2011/02
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