TK68115AM5G0L-C [TOKO]

Fixed Positive LDO Regulator, 1.5V, CMOS, PDSO6, 2 X 1.70 MM, LEAD FREE, PLASTIC, SON-6;
TK68115AM5G0L-C
型号: TK68115AM5G0L-C
厂家: TOKO, INC    TOKO, INC
描述:

Fixed Positive LDO Regulator, 1.5V, CMOS, PDSO6, 2 X 1.70 MM, LEAD FREE, PLASTIC, SON-6

光电二极管 输出元件 调节器
文件: 总38页 (文件大小:477K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
APPLICATION MANUAL  
Capacitor-less, Ultra Small Package, Low IQ  
200mA CMOS LDO Regulator IC  
TK681xxAMF/M5/S2  
CONTENTS  
1 . DESCRIPTION  
2 . FEATURES  
3 . APPLICATIONS  
2
2
2
4 . PIN CONFIGURATION  
5 . BLOCK DIAGRAM  
2
2
6 . ORDERING INFORMATION  
7 . ABSOLUTE MAXIMUM RATINGS  
8 . ELECTRICAL CHARACTERISTICS  
9 . TEST CIRCUIT  
3
3
4
7
10 . TYPICAL CHARACTERISTICS  
11 . PIN DESCRIPTION  
12 . APPLICATIONS INFORMATION  
13 . PACKAGE OUTLINE  
14 . NOTES  
9
26  
27  
34  
38  
38  
15. OFFICES  
GC3-M021B  
Page 1  
TK681xxAMF/M5/S2  
Capacitor-less, Ultra Small Package, Low IQ  
200mA CMOS LDO Regulator  
TK681xxAMF/M5/S2  
„ SON2017-6  
1. DESCRIPTION  
The TK681xxAMF/M5/S2 is a CMOS LDO regulator.  
The package is the very small and thin HSON1214-4, the  
small and thin SON2017-6, and the small and versatile  
SOT23-5.  
The IC is designed for portable applications with space  
requirements.  
The IC can supply 200mA output current.  
The IC offers low quiescent current.  
The IC does not require a noise-bypass capacitor.  
The output voltage is internally fixed from 1.2V to 4.2V.  
VIn  
GND  
VOut  
1
2
3
6
5
4
VCont  
GND  
NC  
(Top View)  
2. FEATURES  
„SOT23-5  
„ Capacitor-less  
(Without input capacitor, output capacitor, and noise-  
bypass capacitor)  
„ Package: HSON1214-4 / SON2017-6 / SOT23-5  
„ Low quiescent current  
„ Thermal and over current protection  
„ On/Off control  
„ High accuracy  
VIn  
1
2
3
5
4
VOut  
GND  
VCont  
3. APPLICATIONS  
NC  
„ Mobile communication  
„ Battery powered system  
„ Any electronic equipment  
(Top View)  
5. BLOCK DIAGRAM  
4. PIN CONFIGURATION  
„ HSON1214-4  
VIn  
VOut  
VOut  
1
2
4
3
VIn  
VRef  
Thermal &  
GND  
VCont  
On/Off  
Control  
Over Current  
Protection  
VCont  
GND  
(Top View)  
GC3-M021B  
Page 2  
TK681xxAMF/M5/S2  
6. ORDERING INFORMATION  
T K 6 8 1  
A
G 0 L - C  
Voltage Code  
(Refer to the following table)  
Operating Temp. Range Code  
C : C Rank(standard)  
Package Code  
MF : HSON1214-4  
M5 : SON2017-6  
S2 : SOT23-5  
Tape/Reel Code  
L : Left type  
Solder Composion Code  
G0 : Lead Free  
Output Voltage  
1.2V  
Voltage Code  
Output Voltage  
2.7V  
Voltage Code  
Output Voltage  
3.2V  
Voltage Code  
12  
13  
27  
28  
32  
33  
1.3V  
2.8V  
3.3V  
1.5V  
1.8V  
2.5V  
2.6V  
15  
18  
25  
26  
2.85V  
2.9V  
3.0V  
3.1V  
01  
29  
30  
31  
3.5V  
4.0V  
35  
40  
*If you need a voltage other than the value listed in the above table, please contact TOKO.  
7. ABSOLUTE MAXIMUM RATINGS  
Ta=25°C  
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), 4mW/°C(SON2017-6, SOT23-5) for operation above  
25°C.  
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.  
GC3-M021B  
Page 3  
TK681xxAMF/M5/S2  
8. ELECTRICAL CHARACTERISTICS  
The parameters with min. or max. values will be guaranteed at Ta=Tj=25°C with test when manufacturing or  
SQC(Statistical Quality Control) methods. The operation between -40 ~ 85°C is guaranteed by design.  
VIn=VOut,TYP+1V, VCont=1.2V, Ta=Tj=25°C  
Value  
Parameter  
Symbol  
Units  
Conditions  
MIN  
Refer to TABLE 1, 2  
0.0 4.0  
TYP  
MAX  
Output Voltage  
VOut  
LinReg  
LoaReg  
VDrop  
V
IOut=5mA  
Line Regulation  
-
mV  
mV  
mV  
mA  
µA  
µA  
µA  
VIn=1V  
Load Regulation  
Refer to TABLE 1, 2  
Refer to TABLE 1, 2  
Refer to TABLE 1, 2  
Refer to TABLE 1, 2  
VOut=VOut,TYP×0.9  
IOut=0mA, VCont=VIn  
VCont=0V  
Dropout Voltage *1  
Maximum Load Current *2  
IOut,MAX  
IQ  
IStandby  
IGND  
210  
350  
12  
-
Quiescent Current  
Standby Current  
GND Pin Current  
Control Terminal  
Control Current  
-
-
-
24  
0.1  
60  
0.01  
30  
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 ,  
BPF=400Hz~80kHz  
µVrms  
VNoise  
Ripple Rejection  
(TK68128A)  
COut=1.0µF ,  
RR  
tr  
-
-
52  
85  
-
-
dB  
µs  
IOut=10mA , f=1kHz  
C
Out=1.0µF ,  
Rise Time  
VCont : Pulse Wave (100Hz) ,  
VCont On VOut×95% point  
(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.  
GC3-M021B  
Page 4  
TK681xxAMF/M5/S2  
TABLE 1. Preferred Product (TK681xxAMF)  
Load Regulation  
Dropout Voltage  
Output Voltage  
Part Number  
I
Out=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  
GC3-M021B  
Page 5  
TK681xxAMF/M5/S2  
TABLE 2. Preferred Product (TK681xxAM5/S2)  
Load Regulation  
Dropout Voltage  
Output Voltage  
Part Number  
I
Out=5 ~ 100mA IOut=5 ~ 200mA IOut=100mA  
IOut=200mA  
MIN TYP MAX TYP MAX TYP MAX TYP MAX TYP MAX  
V
V
V
mV  
8
mV  
32  
32  
32  
36  
36  
40  
40  
40  
40  
40  
40  
40  
40  
40  
44  
44  
mV  
15  
15  
16  
16  
18  
18  
18  
18  
18  
19  
19  
19  
19  
19  
20  
21  
mV  
60  
60  
64  
64  
72  
72  
72  
72  
72  
76  
76  
76  
76  
76  
80  
84  
mV  
-
mV  
-
mV  
-
mV  
-
TK68112AM5/S2  
TK68113AM5/S2  
TK68115AM5/S2  
TK68118AM5/S2  
TK68125AM5/S2  
TK68126AM5/S2  
TK68127AM5/S2  
TK68128AM5/S2  
TK68101AM5/S2  
TK68129AM5/S2  
TK68130AM5/S2  
TK68131AM5/S2  
TK68132AM5/S2  
TK68133AM5/S2  
TK68135AM5/S2  
TK68140AM5/S2  
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  
8
-
-
-
-
8
-
-
-
-
9
125  
85  
85  
85  
80  
80  
80  
75  
75  
75  
75  
70  
65  
195  
135  
135  
130  
130  
125  
125  
120  
120  
120  
115  
110  
105  
250  
170  
165  
165  
160  
155  
155  
150  
150  
145  
145  
140  
130  
425  
290  
280  
275  
270  
265  
265  
255  
250  
250  
245  
235  
220  
9
10  
10  
10  
10  
10  
10  
10  
10  
10  
11  
11  
Notice.  
Please contact your authorized TOKO representative for voltage availability.  
GC3-M021B  
Page 6  
TK681xxAMF/M5/S2  
9. TEST CIRCUIT  
„ Test circuit for electrical characteristic  
IIn  
_
CIn  
=1.0  
A
VIn  
VOut  
VCont GND  
ICont  
VCont  
Notice.  
COut  
=1.0µF  
The limit value of electrical characteristics is applied when  
CIn=1.0µF(Ceramic), COut=1.0µF(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.  
µ
F
_
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  
=1.0  
COut  
=1.0  
µF  
µF  
_
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  
=1.0  
A
VIn  
VOut  
VCont GND  
ICont  
VCont  
„ IQ vs VIn  
„ IStandby vs VIn  
„ IQ vs Ta  
Open  
COut  
=1.0µF  
µ
F
VIn=  
VOut,TYP+1.0V  
_
A
VIn  
VOut  
VCont GND  
ICont IGND  
VCont  
„ IGND vs IOut  
„ IGND vs Ta  
CIn  
=1.0  
COut  
=1.0µF  
µF  
VIn=  
IOut  
_
A
_
A
VOut,TYP+1.0V  
GC3-M021B  
Page 7  
TK681xxAMF/M5/S2  
VIn=  
VOut,TYP+1.5V  
VIn  
VOut  
„ RR vs VIn  
„ RR vs Frequency  
„ RR vs Frequency  
Vripple  
500mVP-P  
=
COut  
=1.0  
µ
µ
µ
F
VCont GND  
IOut  
=10mA  
VCont  
=1.2V  
VOut,TYP+2V  
VIn  
VOut  
„ Line Transient  
„ Load Transient  
„ On/Off Transient  
COut  
=1.0  
VOut,TYP+1V  
F
VCont GND  
_
V
IOut  
VOut  
VOut  
VOut  
VCont  
=1.2V  
VIn  
VOut  
CIn  
=1.0  
COut  
=1.0  
µ
F
F
VCont GND  
_
V
VIn=  
VOut,TYP+1.0V  
IOut  
VCont  
=1.2V  
VIn  
VOut  
CIn  
=1.0  
COut  
=1.0  
µF  
µF  
VCont GND  
_
V
VIn=  
VOut,TYP+1.0V  
IOut=  
30mA  
VCont  
=0V 1.2V  
GC3-M021B  
Page 8  
TK681xxAMF/M5/S2  
10. TYPICAL CHARACTERISTICS  
10-1. DC CHARACTERISTICS  
„ VOut vs VIn (TK68112AMF/M5/S2)  
„ VOut vs VIn (TK68112AMF)  
100  
200  
160  
120  
80  
IOut=0, 5, 50, 100, 150, 200mA  
IOut=5mA  
80  
60  
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/M5/S2)  
„ VOut vs VIn (TK68128AMF)  
10  
40  
IOut=0, 5, 50, 100, 150, 200mA  
20  
IOut=5mA  
5
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/M5/S2)  
„ VOut vs VIn (TK68142AMF)  
10  
40  
IOut=0, 5, 50, 100, 150, 200mA  
20  
IOut=5mA  
5
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]  
GC3-M021B  
Page 9  
TK681xxAMF/M5/S2  
„ VOut vs IOut (TK68112AM5/S2)  
200  
IOut=0, 5, 50, 100, 150, 200mA  
160  
120  
80  
40  
0
-40  
-80  
-120  
-160  
-200  
-100  
0
100 200 300 400 500 600 700 800  
VIn-VOut [mV]  
„ VDrop vs IOut (TK68128AMF)  
„ VOut vs IOut (TK68128AM5/S2)  
0
-50  
40  
IOut=0, 5, 50, 100, 150, 200mA  
20  
-100  
-150  
-200  
-250  
-300  
-350  
-400  
0
-20  
-40  
-60  
-80  
-100  
-100  
0
100  
200  
300  
0
50  
100  
150  
200  
250  
IOut [mA]  
VIn-VOut [mV]  
„ VDrop vs IOut (TK68142AMF)  
„ VOut vs IOut (TK68142AM5/S2)  
0
-50  
40  
IOut=0, 5, 50, 100, 150, 200mA  
20  
-100  
-150  
-200  
-250  
-300  
-350  
-400  
0
-20  
-40  
-60  
-80  
-100  
-100  
0
100  
200  
300  
0
50  
100  
150  
200  
250  
IOut [mA]  
VIn-VOut [mV]  
GC3-M021B  
Page 10  
TK681xxAMF/M5/S2  
„ VOut vs IOut (TK68112AMF/M5/S2)  
2
1.5  
1
0.5  
0
0
100  
200  
300  
400  
500  
500  
500  
IOut [mA]  
„ VDrop vs IOut (TK68128AM5/S2)  
„ VOut vs IOut (TK68128AMF/M5/S2)  
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  
300  
400  
0
50  
100  
150  
200  
250  
IOut [mA]  
IOut [mA]  
„ VDrop vs IOut (TK68142AM5/S2)  
„ VOut vs IOut (TK68142AMF/M5/S2)  
0
-50  
6
5
4
3
2
1
0
-100  
-150  
-200  
-250  
-300  
-350  
-400  
0
100  
200  
300  
400  
0
50  
100  
150  
200  
250  
IOut [mA]  
IOut [mA]  
GC3-M021B  
Page 11  
TK681xxAMF/M5/S2  
„ VOut vs IOut (TK68112AMF)  
„ VOut vs IOut (TK68112AM5/S2)  
10  
5
10  
5
0
0
-5  
-5  
-10  
-15  
-20  
-25  
-30  
-35  
-40  
-10  
-15  
-20  
-25  
-30  
-35  
-40  
0
50  
100  
150  
200  
200  
200  
250  
250  
250  
0
50  
100  
150  
200  
200  
200  
250  
250  
250  
IOut [mA]  
IOut [mA]  
„ VOut vs IOut (TK68128AMF)  
„ VOut vs IOut (TK68128AM5/S2)  
10  
5
10  
5
0
0
-5  
-5  
-10  
-15  
-20  
-25  
-30  
-35  
-40  
-10  
-15  
-20  
-25  
-30  
-35  
-40  
0
50  
100  
150  
0
50  
100  
150  
IOut [mA]  
IOut [mA]  
„ VOut vs IOut (TK68142AMF)  
„ VOut vs IOut (TK68142AM5/S2)  
10  
5
10  
5
0
0
-5  
-5  
-10  
-15  
-20  
-25  
-30  
-35  
-40  
-10  
-15  
-20  
-25  
-30  
-35  
-40  
0
50  
100  
150  
0
50  
100  
150  
IOut [mA]  
IOut [mA]  
GC3-M021B  
Page 12  
TK681xxAMF/M5/S2  
„VOut vs Ta (TK68112AMF/M5/S2)  
100  
80  
60  
40  
20  
0
-20  
-40  
-60  
-80  
-100  
-50  
-25  
0
25  
50  
75  
75  
75  
100  
100  
100  
Ta [°C]  
„ VDrop vs Ta (TK68128AMF)  
„VOut vs Ta (TK68128AMF/M5/S2)  
0
-50  
100  
80  
IOut=100mA  
IOut=200mA  
60  
-100  
-150  
-200  
-250  
-300  
-350  
-400  
40  
20  
0
-20  
-40  
-60  
-80  
-100  
-50  
-25  
0
25  
50  
75  
100  
-50  
-25  
0
25  
50  
Ta [°C]  
Ta [°C]  
„ VDrop vs Ta (TK68142AMF)  
„VOut vs Ta (TK68142AMF/M5/S2)  
0
-50  
100  
80  
IOut=100mA  
IOut=200mA  
60  
-100  
-150  
-200  
-250  
-300  
-350  
-400  
40  
20  
0
-20  
-40  
-60  
-80  
-100  
-50  
-25  
0
25  
50  
75  
100  
-50  
-25  
0
25  
50  
Ta [°C]  
Ta [°C]  
GC3-M021B  
Page 13  
TK681xxAMF/M5/S2  
„ IOut,MAX vs Ta (TK68112AMF/M5/S2)  
400  
300  
200  
-50  
-25  
0
25  
50  
75  
100  
100  
100  
Ta [°C]  
„ VDrop vs Ta (TK68128AM5/S2)  
„ IOut,MAX vs Ta (TK68128AMF/M5/S2)  
0
-50  
400  
IOut=100mA  
IOut=200mA  
-100  
-150  
-200  
-250  
-300  
-350  
-400  
300  
200  
-50  
-25  
0
25  
50  
75  
-50  
-25  
0
25  
50  
75  
100  
Ta [°C]  
Ta [°C]  
„ VDrop vs Ta (TK68142AM5/S2)  
„ IOut,MAX vs Ta (TK68142AMF/M5/S2)  
0
-50  
400  
IOut=100mA  
IOut=200mA  
-100  
-150  
-200  
-250  
-300  
-350  
-400  
300  
200  
-50  
-25  
0
25  
50  
75  
-50  
-25  
0
25  
50  
75  
100  
Ta [°C]  
Ta [°C]  
GC3-M021B  
Page 14  
TK681xxAMF/M5/S2  
„ IQ vs VIn (TK68112AMF/M5/S2)  
„ IStandby vs VIn (TK68112AMF/M5/S2)  
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
5
6
6
6
VIn [V]  
VIn [V]  
„ IQ vs VIn (TK68128AMF/M5/S2)  
„ IStandby vs VIn (TK68128AMF/M5/S2)  
50  
10  
VCont=VIn  
VCont=0V  
9
8
7
6
5
4
3
2
1
0
40  
30  
20  
10  
0
0
1
2
3
5
0
1
2
3
4
5
VIn [V]  
VIn [V]  
„ IQ vs VIn (TK68142AMF/M5/S2)  
„ IStandby vs VIn (TK68142AMF/M5/S2)  
50  
10  
VCont=VIn  
VCont=VIn  
9
8
7
6
5
4
3
2
1
0
40  
30  
20  
10  
0
0
1
2
3
5
0
1
2
3
4
5
VIn [V]  
VIn [V]  
GC3-M021B  
Page 15  
TK681xxAMF/M5/S2  
„ IGND vs IOut (TK68112AMF/M5/S2)  
„ IQ vs Ta (TK68112AMF/M5/S2)  
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  
75  
100  
100  
100  
0
50  
100  
150  
200  
250  
250  
250  
IOut [mA]  
Ta [°C]  
„ IGND vs IOut (TK68128AMF/M5/S2)  
„ IQ vs Ta (TK68128AMF/M5/S2)  
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  
75  
0
50  
100  
150  
200  
IOut [mA]  
Ta [°C]  
„ IGND vs IOut (TK68142AMF/M5/S2)  
„ IQ vs Ta (TK68142AMF/M5/S2)  
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  
75  
0
50  
100  
150  
200  
IOut [mA]  
Ta [°C]  
GC3-M021B  
Page 16  
TK681xxAMF/M5/S2  
„ IGND vs Ta (TK68112AMF/M5/S2)  
„ ICont vs VCont, VOut vs VCont (TK68112AMF/M5/S2)  
2
1.5  
1
2
100  
VCont=VIn , IOut=50mA  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
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/M5/S2)  
„ ICont vs VCont, VOut vs VCont (TK68128AMF/M5/S2)  
2
1.5  
1
4
3
2
1
0
100  
VCont=VIn , IOut=50mA  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
VOut  
0.5  
0
ICont  
-50  
-25  
0
25  
50  
75  
0
0.5  
1
1.5  
2
VCont [V]  
Ta [°C]  
„ IGND vs Ta (TK68142AMF/M5/S2)  
„ ICont vs VCont, VOut vs VCont (TK68142AMF/M5/S2)  
2
1.5  
1
8
6
4
2
0
100  
VCont=VIn , IOut=50mA  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
VOut  
0.5  
0
ICont  
-50  
-25  
0
25  
50  
75  
0
0.5  
1
1.5  
2
VCont [V]  
Ta [°C]  
GC3-M021B  
Page 17  
TK681xxAMF/M5/S2  
„ VCont vs Ta (TK68112AMF/M5/S2)  
„ ICont vs Ta (TK681xxAMF/M5/S2)  
1.4  
1.2  
1
1
0.75  
0.5  
VCont=1.2V  
0.8  
0.6  
0.4  
0.2  
0
0.25  
0
-50  
-25  
0
25  
50  
75  
100  
-50  
-25  
0
25  
50  
75  
75  
75  
100  
100  
100  
Ta [°C]  
Ta [°C]  
„ VCont vs Ta (TK68128AMF/M5/S2)  
1.4  
1.2  
1
0.8  
0.6  
0.4  
0.2  
0
-50  
-25  
0
25  
50  
Ta [°C]  
„ VCont vs Ta (TK68142AMF/M5/S2)  
1.4  
1.2  
1
0.8  
0.6  
0.4  
0.2  
0
-50  
-25  
0
25  
50  
Ta [°C]  
GC3-M021B  
Page 18  
TK681xxAMF/M5/S2  
10-2. AC CHARACTERISTICS  
„ RR vs VIn (TK68112AMF/M5/S2)  
„ RR vs Frequency (TK68112AMF/M5/S2)  
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=1.0µF(tant.)  
COut=1.0µF(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/M5/S2)  
„ RR vs Frequency (TK68128AMF/M5/S2)  
0
0
Vripple=0.1Vp-p, f=1kHz  
IOut=10mA  
-10  
-10  
-20  
-30  
-40  
-20  
-30  
-40  
COut=1.0µF(tant.)  
-50  
-60  
-50  
-60 IOut= 200mA  
150mA  
100mA  
50mA  
µ
COut=1.0 F(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/M5/S2)  
„ RR vs Frequency (TK68142AMF/M5/S2)  
0
0
Vripple=0.1Vp-p, f=1kHz  
IOut=10mA  
-10  
-10  
-20  
-30  
-40  
-50  
-60  
-70  
-80  
-90  
-100  
-20  
-30  
-40  
COut=1.0µF(tant.)  
COut=1.0µF(cer.)  
-50  
-60  
IOut= 200mA  
150mA  
100mA  
50mA  
-70  
-80  
-90  
10mA  
-100  
100  
1k  
10k  
100k  
1M  
0
0.5  
1
1.5  
2
2.5  
Frequency [Hz]  
V
In--VOut,TYP [V]  
GC3-M021B  
Page 19  
TK681xxAMF/M5/S2  
„ RR vs Frequency (TK68112AMF/M5/S2)  
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
IOut=10mA  
-10  
-20  
-30  
-40  
-50  
-60  
COut=0.47µF(cer.)  
-70  
0.68µF(cer.)  
1.0µF(cer.)  
-80  
-90  
-100  
100  
1k  
10k  
100k  
1M  
Frequency [Hz]  
„ RR vs Frequency (TK68128AMF/M5/S2)  
0
IOut=10mA  
-10  
-20  
-30  
-40  
-50  
-60  
-70  
-80  
-90  
-100  
COut=0.47µF(cer.)  
0.68µF(cer.)  
1.0µF(cer.)  
100  
1k  
10k  
100k  
1M  
Frequency [Hz]  
„ RR vs Frequency (TK68142AMF/M5/S2)  
0
IOut=10mA  
-10  
-20  
-30  
-40  
-50  
-60  
COut=0.47µF(cer.)  
-70  
0.68µF(cer.)  
1.0µF(cer.)  
-80  
-90  
-100  
100  
1k  
10k  
100k  
1M  
Frequency [Hz]  
GC3-M021B  
Page 20  
TK681xxAMF/M5/S2  
„ VNoise vs VIn (TK68112AMF/M5/S2)  
„ VNoise vs IOut (TK68112AMF/M5/S2)  
100  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
IOut=30mA  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
1
2
3
4
5
6
0
0
50  
100  
150  
200  
250  
250  
250  
VIn [V]  
IOut [mA]  
„ VNoise vs VIn (TK68128AMF/M5/S2)  
„ VNoise vs IOut (TK68128AMF/M5/S2)  
100  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
IOut=30mA  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
0
50  
100  
150  
200  
2.5  
3
3.5  
4
4.5  
5
5.5  
6
VIn [V]  
IOut [mA]  
„ VNoise vs VIn (TK68142AMF/M5/S2)  
„ VNoise vs IOut (TK68142AMF/M5/S2)  
100  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
IOut=30mA  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
4
4.5  
5
5.5  
6
0
50  
100  
150  
200  
VIn [V]  
IOut [mA]  
GC3-M021B  
Page 21  
TK681xxAMF/M5/S2  
„ VNoise vs VOut (TK681xxAMF/M5/S2)  
„ VNoise vs Frequency (TK68112AMF/M5/S2)  
100  
10  
IOut=30mA  
IOut=10mA  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
1
0.1  
0.01  
10  
100  
1k  
10k  
100k  
1
1.5  
2
2.5  
3
3.5  
4
4.5  
VOut [V]  
Frequency [Hz]  
„ VNoise vs Frequency (TK68128AMF/M5/S2)  
10  
IOut=10mA  
1
0.1  
0.01  
10  
100  
1k  
10k  
100k  
Frequency [Hz]  
„ VNoise vs Frequency (TK68142AMF/M5/S2)  
10  
IOut=10mA  
1
0.1  
0.01  
10  
100  
1k  
10k  
100k  
Frequency [Hz]  
GC3-M021B  
Page 22  
TK681xxAMF/M5/S2  
10-3. TRANSIENT CHARACTERISTICS  
„ Line Transient (TK68112AMF/M5/S2)  
„ Load Transient (IOut=5100mA)  
(TK68112AMF/M5/S2)  
VIn  
1V/div  
IOut  
3.2V  
100mA  
100mA  
100mA  
100mA/div  
100mV/div  
2.2V  
5mA  
IOut=50, 100, 200mA  
VOut  
COut=0.47, 0.68, 1.0µF  
VOut  
50mV/div  
20µsec/div  
Time  
20µsec/div  
Time  
„ Line Transient (TK68128AMF/M5/S2)  
„ Load Transient (IOut=5100mA)  
(TK68128AMF/M5/S2)  
VIn  
1V/div  
4.8V  
IOut  
100mA/div  
100mV/div  
3.8V  
5mA  
IOut=50, 100, 200mA  
VOut  
COut=0.47, 0.68, 1.0µF  
VOut  
50mV/div  
20µsec/div  
Time  
20µsec/div  
Time  
„ Line Transient (TK68142AMF/M5/S2)  
„ Load Transient (IOut=5100mA)  
(TK68142AMF/M5/S2)  
VIn  
1V/div  
6.2V  
IOut  
100mA/div  
100mV/div  
5.2V  
5mA  
IOut=50, 100, 200mA  
VOut  
COut=0.47, 0.68, 1.0µF  
VOut  
50mV/div  
20µsec/div  
Time  
20µsec/div  
Time  
GC3-M021B  
Page 23  
TK681xxAMF/M5/S2  
„ Load Transient (IOut=0 or 5↔100mA)  
(TK68112AMF/M5/S2)  
=5↔100mA) (TK68128AMF/M5)  
100mA  
100mA  
100mA  
100mA  
IOut  
IOut  
100mA/div  
200mV/div  
0 or 5mA  
100mA/div  
200mV/div  
0 or 5mA  
0 100mA  
0 100mA  
VOut  
VOut  
5 100mA  
5 100mA  
10msec/div  
Time  
10µsec/div  
Time  
Load Transient (IOut  
=5↔100mA) (TK68128AMF/M5)  
„ Load Transient (IOut=0 or 5↔100mA)  
(TK68128AMF/M5/S2)  
100mA  
IOut  
IOut  
100mA/div  
200mV/div  
0 or 5mA  
100mA/div  
200mV/div  
0 or 5mA  
0 100mA  
0 100mA  
VOut  
VOut  
5 100mA  
5 100mA  
10msec/div  
Time  
10µsec/div  
Time  
Load Transient (IOut  
=5↔100mA) (TK68128AMF/M5)  
„ Load Transient (IOut=0 or 5↔100mA)  
(TK68142AMF/M5/S2)  
100mA  
IOut  
IOut  
100mA/div  
200mV/div  
0 or 5mA  
100mA/div  
200mV/div  
0 or 5mA  
0 100mA  
0 100mA  
VOut  
VOut  
5 100mA  
5 100mA  
10msec/div  
Time  
10µsec/div  
Time  
GC3-M021B  
Page 24  
TK681xxAMF/M5/S2  
„On/Off Transient (VCont=01.2V)  
„On/Off Transient (VCont=1.20V)  
(TK68112AMF/M5/S2)  
(TK68112AMF/M5/S2)  
IOut=30mA  
IOut=30mA  
IOut=30mA  
IOut=30mA  
VCont  
VCont  
1V/div  
1V/div  
COut=0.47, 0.68, 1.0µF  
VOut  
VOut  
500mV/div  
200mA/div  
500mV/div  
200mA/div  
COut=0.47, 0.68, 1.0µF  
IIn  
IIn  
20µsec/div  
100µsec/div  
Time  
Time  
„On/Off Transient (VCont=01.2V)  
„On/Off Transient (VCont=1.20V)  
(TK68128AMF/M5/S2)  
(TK68128AMF/M5/S2)  
IOut=30mA  
VCont  
VCont  
1V/div  
1V/div  
COut=0.47, 0.68, 1.0µF  
VOut  
VOut  
1V/div  
1V/div  
COut=0.47, 0.68, 1.0µF  
IIn  
IIn  
200mA/div  
200mA/div  
40µsec/div  
100µsec/div  
Time  
Time  
„On/Off Transient (VCont=01.2V)  
„On/Off Transient (VCont=1.20V)  
(TK68142AMF/M5/S2)  
(TK68142AMF/M5/S2)  
IOut=30mA  
VCont  
VCont  
1V/div  
1V/div  
COut=0.47, 0.68, 1.0µF  
VOut  
VOut  
2V/div  
2V/div  
COut=0.47, 0.68, 1.0µF  
IIn  
IIn  
200mA/div  
200mA/div  
40µsec/div  
100µsec/div  
Time  
Time  
GC3-M021B  
Page 25  
TK681xxAMF/M5/S2  
11. PIN DESCRIPTION  
Pin No.  
Pin  
Description  
Internal Equivalent Circuit  
Description  
TK681xxAMF TK681xxAM5 TK681xxAS2  
GND Terminal  
2
2, 5  
2
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
6
3
VCont  
1.65M  
Output Terminal  
VIn  
VOut  
1
4
3
5
VOut  
ESD  
protection  
1
4
1
4
VIn  
NC  
Input Terminal  
No Connected  
GC3-M021B  
Page 26  
TK681xxAMF/M5/S2  
„ RR vs Frequency (TK68112AMF/M5/S2)  
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/M5/S2 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.  
0
-10  
-20  
-30  
-40  
-50  
-60  
-70  
-80  
-90  
-100  
Capacitor-less  
IOut=10mA  
100k  
Transient characteristics (influence of load deviation)  
improve by using output capacitor (see the “Load  
Transient” on page 16).  
100  
1k  
10k  
1M  
Frequency [Hz]  
Because a situation changes with each application, please  
confirm to operation in your design.  
„ RR vs Frequency (TK68128AMF/M5/S2)  
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/M5/S2)  
0
-10  
-20  
-30  
-40  
-50  
-60  
-70  
-80  
-90  
-100  
Capacitor-less  
IOut=10mA  
100k 1M  
100  
1k  
10k  
Frequency [Hz]  
GC3-M021B  
Page 27  
TK681xxAMF/M5/S2  
„ VNoise vs IOut (TK68112AMF/M5/S2)  
„Load Transient (IOut=5100mA)  
(TK68112AMF/M5/S2)  
100  
Capacitor-less  
100mA  
Capacitor-less  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
IOut  
100mA/div  
1V/div  
5mA  
VOut  
0
50  
100  
150  
200  
250  
250  
250  
10µsec/div  
Time  
IOut [mA]  
„ VNoise vs IOut (TK68128AMF/M5/S2)  
„Load Transient (IOut=5100mA)  
(TK68128AMF/M5/S2)  
100  
Capacitor-less  
100mA  
Capacitor-less  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
IOut  
100mA/div  
1V/div  
5mA  
VOut  
0
50  
100  
150  
200  
10µsec/div  
IOut [mA]  
Time  
„ VNoise vs IOut (TK68142AMF/M5/S2)  
„Load Transient (IOut=5100mA)  
(TK68142AMF/M5/S2)  
100  
Capacitor-less  
100mA  
Capacitor-less  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
IOut  
100mA/div  
1V/div  
5mA  
VOut  
0
50  
100  
150  
200  
10µsec/div  
IOut [mA]  
Time  
GC3-M021B  
Page 28  
TK681xxAMF/M5/S2  
„ On/Off Transient (VCont=01.2V)  
„ On/Off Transient (VCont=1.20V)  
(TK68112AMF/M5/S2)  
(TK68112AMF/M5/S2)  
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  
20µsec/div  
100µsec/div  
Time  
Time  
„ On/Off Transient (VCont=01.2V)  
„ On/Off Transient (VCont=1.20V)  
(TK68128AMF/M5/S2)  
(TK68128AMF/M5/S2)  
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  
40µsec/div  
100µsec/div  
Time  
Time  
„ On/Off Transient (VCont=01.2V)  
„ On/Off Transient (VCont=1.20V)  
(TK68142AMF/M5/S2)  
(TK68142AMF/M5/S2)  
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  
40µsec/div  
100µsec/div  
Time  
Time  
GC3-M021B  
Page 29  
TK681xxAMF/M5/S2  
12-3: Layout example (TK681xxAS2)  
VOut  
12-2. Layout  
GND  
NC  
12-1: Layout example (TK681xxAMF)  
VIn  
VCont  
VIn  
GND VCont  
(Top View)  
PCB Material: Glass epoxy  
Size: 12mm×7mm×0.8mm  
VOut  
GND  
(Top View)  
PCB Material: Glass epoxy  
Size: 30mm×30mm×1mm  
VOut  
VCont  
VIn  
GND  
(Top View)  
PCB Material: Glass epoxy  
Size: 7mm×8mm×0.8mm  
12-2: Layout example (TK681xxAM5)  
VCont  
GND  
NC  
VIn  
GND  
VOut  
(Top View)  
PCB Material: Glass epoxy  
Size : 10mm×7mm×0.8mm  
GC3-M021B  
Page 30  
TK681xxAMF/M5/S2  
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 25°C or more  
(TK681xxAMF). Please do derating with 4mW/°C at  
PD=500mW, and 25°C or more (TK681xxAM5/S2).  
How to determine the thermal resistance when  
mounted on PCB  
The thermal resistance when mounted is expressed as  
follows:  
Fig12-4: Derating Curve (TK681xxAMF)  
PD(mW)  
-7.2mW/°C  
PCB size  
Tj=θja×PD+Ta  
Tj of IC is set around 150°C. PD is the value when the  
thermal sensor is activated.  
900  
(30mm×30mm×1mm)  
If the ambient temperature is 25°C, then:  
150=θja×PD+25  
θja=125/PD (°C /mW)  
-3.2mW/°C  
PCB size  
(7mm×8mm×0.8mm)  
PD is easily calculated.  
A simple way to determine PD is to calculate VIn×IIn  
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.  
400  
25  
50  
100  
(85°C)  
150°C  
Fig12-6: How to determine DPD  
PD (mW)  
2
PD  
Fig12-5: Derating Curve (TK681xxAM5/S2)  
PD(mW)  
DPD  
3
500  
5
-4mW/°C  
4
25  
50  
75  
100 125 150  
Ta (°C)  
Procedure (When mounted on PCB.)  
1. Find PD (VIn×IIn when the output side is short-  
circuited).  
25  
50  
100  
(85°C)  
150°C  
The package loss is limited at the temperature that the  
internal temperature sensor works (about 150°C).  
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), 500mW  
(TK681xxAM5/S5). Enduring these losses becomes  
possible in a lot of applications operating at 25°C.  
2. Plot PD against 25°C.  
3. Connect PD to the point corresponding to the 150°C  
with a straight line.  
4. In design, take a vertical line from the maximum  
operating temperature (e.g., 75°C) to the derating  
curve.  
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 75°C)  
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.  
The overheating protection circuit operates when the  
junction temperature reaches 150°C (this happens when  
the regulator is dissipating excessive power, outside  
GC3-M021B  
Page 31  
TK681xxAMF/M5/S2  
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.  
Fig12-7: The use of On/Off control  
Vsat  
REG  
On/Off Cont.  
Control Terminal Voltage ((VCont  
VCont > 1.2V  
)
On/Off State  
On  
VCont < 0.2V  
Off  
Parallel Connected On/Off Control  
Fig12-8: The example of parallel connected IC  
TK68142A  
VIn  
VOut  
4.2V  
2.8V  
1.5V  
TK68128A  
TK68115A  
On/Off  
Cont.  
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/M5/S2) 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.  
GC3-M021B  
Page 32  
TK681xxAMF/M5/S2  
12-4. Definition of term  
Characteristics  
Protections  
Over Current Sensor  
Output Voltage (VOut  
)
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.  
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=150°C).  
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 0150V or more  
HBM : 100pF 1.5k2000V 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).  
GC3-M021B  
Page 33  
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.  
GC3-M021B  
Page 34  
TK681xxAMF/M5/S2  
Marking  
Part Number  
Marking Code  
Part Number  
TK68127AMF  
TK68128AMF  
TK68101AMF  
Marking Code  
Part Number  
Marking Code  
TK68112AMF  
TK68113AMF  
TK68115AMF  
TK68118AMF  
TK68125AMF  
TK68126AMF  
B12  
B13  
B15  
B27  
B28  
B01  
TK68132AMF  
TK68133AMF  
TK68135AMF  
TK68140AMF  
B32  
B33  
B35  
B18  
B25  
B26  
TK68129AMF  
TK68130AMF  
TK68131AMF  
B29  
B30  
B31  
B40  
GC3-M021B  
Page 35  
TK681xxAMF/M5/S2  
„ 6-Lead-Small Outline Non-Leaded Package  
: SON2017-6  
0.3  
Mark  
+0.2  
2.0  
0.1  
Lead Free Mark  
6
4
0.65  
Reference Mount Pad  
1 Pin Mark  
1
3
Lot No.  
+0.10  
0.05  
0.65  
0.20  
M
0.10  
+
0.2  
2.1−  
(0.2)  
)
(0.2  
1
3
6
4
Unit : mm  
Package Structure and Others  
Package Material  
Terminal Material : Copper Alloy  
Terminal Finish  
Solder Composition : Sn-2.5Ag  
: Epoxy Resin  
Mark Method  
: Laser  
: Japan  
: 0.0066g  
County of Origin  
: Lead Free Solder Plating(5~15µm) Mass  
Marking  
Part Number  
Marking Code  
Part Number  
Marking Code  
Part Number  
Marking Code  
TK68112AM5  
TK68113AM5  
TK68115AM5  
TK68118AM5  
TK68125AM5  
TK68126AM5  
J12  
TK68127AM5  
J27  
TK68132AM5  
J32  
J13  
J15  
J18  
J25  
J26  
TK68128AM5  
TK68101AM5  
TK68129AM5  
TK68130AM5  
TK68131AM5  
J28  
J01  
J29  
J30  
J31  
TK68133AM5  
TK68135AM5  
TK68140AM5  
J33  
J35  
J40  
GC3-M021B  
Page 36  
TK681xxAMF/M5/S2  
„ 5-Lead-Surface Mount Discrete Package  
: SOT23-5  
Mark  
0.7  
Lead Free Mark  
4
5
0.95  
0.95  
3
1
+0.10  
0.4  
0.05  
M
0.1  
Reference Mount Pad  
0.95  
0.95  
+
0.2  
2.9  
0.4 +  
0.2  
+
0.2  
2.8  
0.1  
Unit : mm  
Package Structure and Others  
Package Material  
Terminal Material : Copper Alloy  
Terminal Finish  
Solder Composition : Sn-2.5Ag  
: Epoxy Resin  
Mark Method  
: Laser  
Country of Origin : Japan  
:
Mass  
: 0.016g  
Lead Free Solder Plating(5~15µm)  
Marking  
Part Number  
Marking Code  
Part Number  
TK68127AS2  
TK68128AS2  
Marking Code  
Part Number  
TK68132AS2  
TK68133AS2  
Marking Code  
TK68112AS2  
TK68113AS2  
TK68115AS2  
TK68118AS2  
TK68125AS2  
TK68126AS2  
N12  
N13  
N27  
N28  
N32  
N33  
N15  
N18  
N25  
N26  
TK68101AS2  
TK68129AS2  
TK68130AS2  
TK68131AS2  
N01  
N29  
N30  
N31  
TK68135AS2  
TK68140AS2  
N35  
N40  
GC3-M021B  
Page 37  
TK681xxAMF/M5/S2  
15. OFFICES  
14. NOTES  
If you need more information on this product and other  
TOKO products, please contact us.  
„ Please be sure that you carefully discuss your planned  
purchase with our office if you intend to use the products in  
this application manual under conditions where particularly  
extreme standards of reliability are required, or if you intend  
to use products for applications other than those listed in this  
application manual.  
„ TOKO Inc. Headquarters  
1-17, Higashi-yukigaya 2-chome, Ohta-ku, Tokyo,  
145-8585, Japan  
TEL: +81.3.3727.1161  
FAX: +81.3.3727.1176 or +81.3.3727.1169  
z Power drive products for automobile, ship or aircraft  
transport systems; steering and navigation systems,  
emergency signal communications systems, and any  
system other than those mentioned above which include  
electronic sensors, measuring, or display devices, and  
which could cause major damage to life, limb or property  
if misused or failure to function.  
z Medical devices for measuring blood pressure, pulse,  
etc., treatment units such as coronary pacemakers and heat  
treatment units, and devices such as artificial organs and  
artificial limb systems which augment physiological  
functions.  
Web site: http://www.toko.co.jp/  
„ TOKO America  
Web site: http://www.toko.com/  
„ TOKO Europe  
Web site: http://www.tokoeurope.com/  
„ TOKO Hong Kong  
Web site: http://www.toko.com.hk/  
z Electrical instruments, equipment or systems used in  
disaster or crime prevention.  
„ TOKO Taiwan  
Web site: http://www.tokohc.com.tw/  
„ Semiconductors, by nature, may fail or malfunction in  
spite of our devotion to improve product quality and  
reliability. We urge you to take every possible precaution  
against physical injuries, fire or other damages which may  
cause failure of our semiconductor products by taking  
appropriate measures, including a reasonable safety margin,  
malfunction preventive practices and fire-proofing when  
designing your products.  
„ TOKO Singapore  
Web site: http://www.toko.com.sg/  
„ TOKO Seoul  
Web site: http://www.toko.co.kr/  
„ TOKO Manila  
Web site: http://www.toko.com.ph/  
„ This application manual is effective from Jun. 2007. Note  
that the contents are subject to change or discontinuation  
without notice. When placing orders, please confirm  
specifications and delivery condition in writing.  
„ TOKO Brazil  
Web site: http://www.toko.com.br/  
„ TOKO is not responsible for any problems nor for any  
infringement of third party patents or any other intellectual  
property rights that may arise from the use or method of use  
of the products listed in this application manual. Moreover,  
this application manual does not signify that TOKO agrees  
implicitly or explicitly to license any patent rights or other  
intellectual property rights which it holds.  
Semiconductor Division  
„ None of the ozone depleting substances(ODS) under the  
Montreal Protocol are used in our manufacturing process.  
YOUR DISTRIBUTOR  
GC3-M021B  
Page 38  

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