TK70719SCL [TOKO]
Fixed Positive LDO Regulator, 1.9V, 0.16V Dropout, PDSO5, SOT-23, 5 PIN;
| 型号： | TK70719SCL |
| 厂家： | 
TOKO, INC |
| 描述： | Fixed Positive LDO Regulator, 1.9V, 0.16V Dropout, PDSO5, SOT-23, 5 PIN 光电二极管 |
| 文件： | 总25页 (文件大小：426K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
APPLICATION MANUAL
LDO Regulator IC
TK705xxS/TK707xxS,TK706xxH/TK708xxH
CONTENTS
1 . DESCRIPTION
2 . FEATURES
3 . APPLICATIONS
4 . PIN CONFIGURATION
5 . PACKAGE OUTLINE
6 . BLOCK DIAGRAM
2
2
2
2
3
5
7 . ABSOLUTE MAXIMUM RATINGS
8 . ELECTRICAL CHARACTERISTICS
9 . TEST CIRCUIT
5
6
9
10 . TYPICAL CHARACTERISTICS
11 . PIN DESCRIPTION
12 . APPLICATIONS INFORMATION
13 . NOTES
10
20
21
25
25
14. OFFICES
GC3-K028A
Page 1
TK705xxS/TK707xxS,TK706xxH/TK708xxH
TK705xxS/TK707xxS,TK706xxH/TK708xxH
1. DESCRIPTION
4. PIN CONFIGURATION
TK705xxS/TK707xxS and TK706xxH/TK708xxH is a
low dropout linear regulator with ON/OFF control, which
can supply 100mA load current.
Top View
· SOT23-5
TK705xxS
The IC is an integrated circuit with a silicon monolithic
bipolar structure.
The output voltage, trimmed with high accuracy, is
available from 1.5 to 5.0V in 0.1V steps.
The packages are the small and thin SON2017-6, and
the extremely versatile SOT23-5. The IC is designed for
portable applications with space requirements, battery
powered system and any electronic equipment.
Two kinds of pin configuration can be selected for each
package.
Vcont
1
2
3
5
Vin
GND
Np
4
5
Vout
Vout
TK707xxS
The over current, over heat sensor and reverse bias over
current protection circuits are built-in.
ESD is also high, so it won’t break easily. It is possible
to use at ease.
Vin
1
2
3
GND
2. FEATURES
! Output current: 100mA, Peak 200mA
! Active high on/off control
4
Np
Vcont
! Excellent Ripple rejection ratio: 80dB (f=1kHz)
70dB (f=10kHz)
· SON2017-6
! Output capacitance: Cout ≥ 0.47µF(Ceramic)
! Output voltage accuracy: ±1.5% or ±50mV
! Short circuit protection (Over current protection)
! Internal thermal shutdown (Over heat protection)
! Reverse bias protection
TK706xxH
Vcont
1
2
3
6
5
4
Vin
GND
Np
GND
Vout
3. APPLICATIONS
*2pin,5pin are connected in the IC.
! Any Electronic Equipment
! Battery Powered Systems
! Mobile Communication
TK708xxH
Vin
1
2
3
6
5
4
Vout
GND
Np
GND
Vcont
*2pin,5pin are connected in the IC.
GC3-K028A
Page 2
TK705xxS/TK707xxS,TK706xxH/TK708xxH
5. PACKAGE OUTLINE
! SOT23-5
! SON2017-6
Mark
0.7
0.3
Mark
+0.2
2.0
−0.1
5
4
Lead Free Mark
6
4
0.65
1 Pin Mark
1
3
Lot No.
3
0.4+0.10
1
0.95
0.95
Reference Mount Pad
0.20 −+00..0150
0.65
−
0.05
M
0.10
+
0.2
2.1−
0.95
0.95
Reference Mount Pad
(0.2)
(0.2)
M
0.1
±0.2
2.9
1
3
±0.2
2.8
0.1
6
4
6. ORDERING INFORMATION
T K 7 0
C L
Pin Configuration
5 or 7 : SOT23-5
6 or 8 : SON2017-6
Voltage Code
ex 28 : 2.8V
30 : 3.0V
Tape / Reel Code
Rank Code
C : C Rank
Package Code
S : SOT23-5
H : SON2017-6
GC3-K028A
Page 3
TK705xxS/TK707xxS,TK706xxH/TK708xxH
Marking
TK705xxS/TK706xxH : Axx
Mark
Part Number
TK70513SC
TK70613HC
TK70514SC
TK70614HC
TK70515SC
TK70615HC
TK70516SC
TK70616HC
TK70517SC
TK70617HC
Mark
Part Number
TK70523SC
TK70623HC
TK70524SC
TK70624HC
Part Number
TK70533SC
TK70633HC
TK70534SC
TK70634HC
Mark
Part Number
TK70543SC
TK70643HC
TK70544SC
TK70644HC
TK70545SC
TK70645HC
TK70546SC
TK70646HC
TK70547SC
TK70647HC
TK70548SC
TK70648HC
TK70549SC
TK70649HC
TK70550SC
TK70650HC
Mark
A13
A23
A33
A43
A14
A15
A16
A17
A18
A19
A20
A21
A22
A24
A25
A26
A27
A28
A29
A30
A31
A32
A34
A35
A36
A37
A38
A39
A40
A41
A42
A44
A45
A46
A47
A48
A49
A50
TK70525SC
TK70625HC
TK70526SC
TK70626HC
TK70527SC
TK70627HC
TK70535SC
TK70635HC
TK70536SC
TK70636HC
TK70537SC
TK70637HC
TK70518SC
TK70618HC
TK70528SC
TK70628HC
TK70529SC
TK70629HC
TK70538SC
TK70638HC
TK70519SC
TK70619HC
TK70520SC
TK70620HC
TK70521SC
TK70621HC
TK70522SC
TK70622HC
TK70539SC
TK70639HC
TK70540SC
TK70640HC
TK70541SC
TK70641HC
TK70542SC
TK70642HC
TK70530SC
TK70630HC
TK70531SC
TK70631HC
TK70532SC
TK70632HC
TK707xxS/TK708xxH : Bxx
Mark
Part Number
TK70713SC
TK70813HC
TK70714SC
TK70814HC
TK70715SC
TK70815HC
TK70716SC
TK70816HC
TK70717SC
TK70817HC
Mark
Part Number
TK70723SC
TK70823HC
TK70724SC
TK70824HC
Part Number
TK70733SC
TK70833HC
TK70734SC
TK70834HC
Mark
Part Number
TK70743SC
TK70843HC
TK70744SC
TK70844HC
TK70745SC
TK70845HC
TK70746SC
TK70846HC
TK70747SC
TK70847HC
TK70748SC
TK70848HC
TK70749SC
TK70849HC
TK70750SC
TK70850HC
Mark
B13
B23
B24
B25
B26
B27
B28
B29
B30
B31
B32
B33
B43
B14
B15
B16
B17
B18
B19
B20
B21
B22
B34
B35
B36
B37
B38
B39
B40
B41
B42
B44
B45
B46
B47
B48
B49
B50
TK70725SC
TK70825HC
TK70726SC
TK70826HC
TK70727SC
TK70827HC
TK70735SC
TK70835HC
TK70736SC
TK70836HC
TK70737SC
TK70837HC
TK70718SC
TK70818HC
TK70728SC
TK70828HC
TK70729SC
TK70829HC
TK70738SC
TK70838HC
TK70719SC
TK70819HC
TK70720SC
TK70820HC
TK70721SC
TK70821HC
TK70722SC
TK70822HC
TK70739SC
TK70839HC
TK70740SC
TK70840HC
TK70741SC
TK70841HC
TK70742SC
TK70842HC
TK70730SC
TK70830HC
TK70731SC
TK70831HC
TK70732SC
TK70832HC
GC3-K028A
Page 4
TK705xxS/TK707xxS,TK706xxH/TK708xxH
7. BLOCK DIAGRAM
Vin
Vout
Over Heat &
Control
Circuit
Over Current
Protection
Bandgap
Reference
Vcont
GND
Np
8. ABSOLUTE MAXIMUM RATINGS
Ta=25°C
Conditions
Parameter
Absolute Maximum Ratings
Supply Voltage
Symbol
Rating
Units
VccMAX
-0.4 ~ 16
-0.4 ~ 6
-0.4 ~ 12
-0.4 ~ 5
-0.4 ~ 16
-55 ~ 150
460 *1
V
V
Vout ≤ 2.0V
Reverse Bias
VrevMAX
V
2.1V ≤ Vout
Np pin Voltage
VnpMAX
VcontMAX
Tstg
V
Control pin Voltage
Storage Temperature Range
V
°C
mW
mW
SOT23-5
Power Dissipation
PD
400 *2
SON2017-6
Operating Condition
Operating Temperature Range
Operating Voltage Range
Short Circuit Current
TOP
VOP
-40 ~ 85
2.1 ~ 14
200
°C
V
Ishort
mA
Over Current Protection
*1 : Internal Limited Tj=140°C. PD must be decreased at rate of 4.0 mW/°C for operation above 25°C.
*2 : Internal Limited Tj=140°C. PD must be decreased at rate of 3.5 mW/°C for operation above 25°C.
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.
GC3-K028A
Page 5
TK705xxS/TK707xxS,TK706xxH/TK708xxH
9. 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 when design.
Vin=VoutTYP+1V,Vcont=1.8V,Ta=Tj=25°C
Value
Parameter
Output Voltage
Symbol
Units
Conditions
MIN
TYP
MAX
Vout
V
Iout = 5mA
∆Vin = 5V
Refer to TABLE 1
Line Regulation
Load Regulation
LinReg
LoaReg
0.0
5.0
mV
mV Iout = 5mA ~ 50mA
mV Iout = 5mA ~ 100mA
mV Iout = 50mA
mV Iout = 100mA
mA
Refer to TABLE 1
Refer to TABLE 1
Dropout Voltage *1
Vdrop
90
160
160
280
100
Output Current *2
Peak Output Current *2
Quiescent Current
Standby Current
Iout
IoutPEAK
Iq
150
1.8
200
75
mA
µA
µA
When (VoutTYP×0.9)
Iout = 0mA
120
0.1
2.7
Istandby
Ignd
0.0
1.5
Vcont = 0V
Ground Pin Current
Control Terminal *3
Control Current
mA Iout = 50mA
Icont
5.0
15.0
0.35
Vcont = 1.8V
Vout ON state
Vout OFF state
µA
V
Control Voltage
Vcont
V
Reference Value
Np Terminal Voltage
Vnp
1.26
35
V
ppm
/°C
Output Voltage / Temp.
Vout/Ta
Output Noise Voltage
(VoutTYP=3.0V)
Cout=1.0µF, Cnp=0.01µF
Iout=30mA
Vnoise
R.R
38
µVrms
Ripple Rejection
(VoutTYP=3.0V)
Cout=1.0µF, Cnp=0.001µF
Iout=10mA, f=1kHz
80
70
dB
dB f=10kHz
Cout=1.0µF, Cnp=0.001µF
Vcont: Pulse Wave (100Hz)
Vcont ON → Vout×95% point
Rise Time
tr
35
µs
(VoutTYP=3.0V)
*1: For Vout ≤ 2.0V , no regulations.
*2: The output current is limited by power dissipation.
*3: The input current decreases to pA level when control terminal is connected to GND (Off state).
General Note: Parameter with only typical value is for reference only.
GC3-K028A
Page 6
TK705xxS/TK707xxS,TK706xxH/TK708xxH
TABLE 1. Output Voltage, Load Regulation
Load Regulation
Output Voltage
Iout = 50mA
Iout = 100mA
Part Number
MIN
V
TYP
V
MAX
V
TYP
mV
MAX
mV
TYP
mV
MAX
mV
VoutTYP=1.3V ~ 2.0V
TK70513/ 70713SC
TK70514/ 70714SC
TK70515/ 70715SC
TK70516/ 70716SC
TK70517/ 70717SC
TK70518/ 70718SC
TK70519/ 70719SC
TK70520/ 70720SC
VoutTYP=2.1V ~ 3.0V
TK70521/ 70721SC
TK70522/ 70722SC
TK70523/ 70723SC
TK70524/ 70724SC
TK70525/ 70725SC
TK70526/ 70726SC
TK70527/ 70727SC
TK70528/ 70728SC
TK70529/ 70729SC
TK70530/ 70730SC
VoutTYP=3.1V ~ 4.0V
TK70531/ 70731SC
TK70532/ 70732SC
TK70533/ 70733SC
TK70534/ 70734SC
TK70535/ 70735SC
TK70536/ 70736SC
TK70537/ 70737SC
TK70538/ 70738SC
TK70539/ 70739SC
TK70540/ 70740SC
TK70613/ 70813HC
1.250 1.300
1.350 1.400
1.450 1.500
1.550 1.600
1.650 1.700
1.750 1.800
1.850 1.900
1.950 2.000
1.350
1.450
1.550
1.650
1.750
1.850
1.950
2.050
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
10.0
10.0
11.0
11.0
11.0
12.0
12.0
12.0
10.0
10.0
10.0
11.0
11.0
11.0
11.0
12.0
22.0
23.0
24.0
25.0
25.0
26.0
27.0
28.0
TK70614/ 70814HC
TK70615/ 70815HC
TK70616/ 70816HC
TK70617/ 70817HC
TK70618/ 70818HC
TK70619/ 70819HC
TK70620/ 70820HC
TK70621/ 70821HC
TK70622/ 70822HC
TK70623/ 70823HC
TK70624/ 70824HC
TK70625/ 70825HC
TK70626/ 70826HC
TK70627/ 70827HC
TK70628/ 70828HC
TK70629/ 70829HC
TK70630/ 70830HC
2.050 2.100
2.150 2.200
2.250 2.300
2.350 2.400
2.450 2.500
2.550 2.600
2.650 2.700
2.750 2.800
2.850 2.900
2.950 3.000
2.150
2.250
2.350
2.450
2.550
2.650
2.750
2.850
2.950
3.050
5.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
12.0
13.0
13.0
13.0
14.0
14.0
14.0
14.0
15.0
15.0
12.0
12.0
13.0
13.0
13.0
14.0
14.0
14.0
15.0
15.0
28.0
29.0
30.0
31.0
31.0
32.0
33.0
34.0
34.0
35.0
TK70631/ 70831HC
TK70632/ 70832HC
TK70633/ 70833HC
TK70634/ 70834HC
TK70635/ 70835HC
TK70636/ 70836HC
TK70637/ 70837HC
TK70638/ 70838HC
TK70639/ 70839HC
TK70640/ 70840HC
3.050 3.100
3.150 3.200
3.250 3.300
3.349 3.400
3.447 3.500
3.546 3.600
3.644 3.700
3.743 3.800
3.841 3.900
3.940 4.000
3.150
3.250
3.350
3.451
3.553
3.654
3.756
3.857
3.959
4.060
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
8.0
8.0
15.0
15.0
16.0
16.0
16.0
17.0
17.0
17.0
17.0
18.0
15.0
16.0
16.0
16.0
16.0
17.0
17.0
17.0
18.0
18.0
36.0
37.0
37.0
38.0
39.0
40.0
40.0
41.0
42.0
43.0
GC3-K028A
Page 7
TK705xxS/TK707xxS,TK706xxH/TK708xxH
TABLE 1. Output Voltage, Load Regulation (continue)
Load Regulation
Output Voltage
Iout = 50mA
Iout = 100mA
Part Number
MIN
V
TYP
V
MAX
V
TYP
mV
MAX
mV
TYP
mV
MAX
mV
VoutTYP=4.1V ~ 5.0V
TK70541/ 70741SC
TK70542/ 70742SC
TK70543/ 70743SC
TK70544/ 70744SC
TK70545/ 70745SC
TK70546/ 70746SC
TK70547/ 70747SC
TK70548/ 70748SC
TK70549/ 70749SC
TK70550/ 70750SC
TK70641/ 70841HC
TK70642/ 70842HC
TK70643/ 70843HC
TK70644/ 70844HC
TK70645/ 70845HC
TK70646/ 70846HC
TK70647/ 70847HC
TK70648/ 70848HC
TK70649/ 70849HC
TK70650/ 70850HC
4.038 4.100
4.137 4.200
4.235 4.300
4.334 4.400
4.432 4.500
4.531 4.600
4.629 4.700
4.728 4.800
4.826 4.900
4.925 5.000
4.162
4.263
4.365
4.466
4.568
4.669
4.771
4.872
4.974
5.075
8.0
8.0
8.0
8.0
8.0
8.0
8.0
9.0
9.0
9.0
18.0
18.0
18.0
19.0
19.0
19.0
20.0
20.0
20.0
20.0
18.0
19.0
19.0
19.0
20.0
20.0
20.0
21.0
21.0
21.0
43.0
44.0
45.0
46.0
46.0
47.0
48.0
49.0
49.0
50.0
GC3-K028A
Page 8
TK705xxS/TK707xxS,TK706xxH/TK708xxH
10. TEST CIRCUIT
10-1. TK705xxS/TK706xxH
TK705xxS (SOT23-5)
5
4
Vin
Vout
Iin
A
Vin
GND
GND
Vout
Np
Vcont
1
GND
2
Np
3
Vin
Cin
Cout
1.0
Iout
Vout
V
TK706xxH (SON2017-6)
1.0
µF
Vcont
µ
F
6
5
4
Vin
GND
Vout
Icont
A
Cnp
0.001
Vcont
µ
F
Vcont
1
GND
2
Np
3
*2pin and 5pin are connected in
the IC.
10-2. TK707xxS/TK708xxH
TK707xxS (SOT23-5)
1
2
3
Vin
Vout
5
Icc
A
Vin
Vout
GND
Vcont
Vin
Cin
Cout
1.0uF
Iout
Vout
V
1.0uF
Np
4
GND
GND
Np
TK708xxH (SON2017-6)
Icont
1
2
3
Vin
Vout
GND
Np
6
5
4
A
Vcont
Vcont
GND
Cnp
0.001uF
Vcont
*2pin and 5pin are connected in
the IC.
GC3-K028A
Page 9
TK705xxS/TK707xxS,TK706xxH/TK708xxH
11. TYPICAL CHARACTERISTICS
11-1-1. DC CHARACTERISTICS
! Line Regulation
Test conditions
Vin
=VoutTYP+1V
10
5
Vin
Vout
Np
Iout=5mA
0
Cin
1.0
Cout
1.0
-5
-10
Vcont
µ
F
µ
F
-15
-20
-25
-30
-35
Vout =
Vcont
1.8V
Cnp
0.001 F
µ
1.5,2.0,3.0,4.0,5.0V
0
2
4
6
8
10 12 14 16
Vin (V)
! Iin vs Vin
Iout=0mA
! Quiescent Current
Iout=0mA
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
200
180
160
140
120
100
80
60
Vout =
1.5,2.0,3.0,4.0,5.0V
40
20
0
0
2
4
6
8
10 12 14 16
0
2
4
6
8
10 12 14 16
Vin (V)
Vin (V)
! Load Regulation
! Peak Output Current
5
0
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
Vout = 5.0V
4.0V
3.0V
-5
2.0V
-10
-15
-20
-25
1.5V
Vout =1.5V
2.0V
3.0V
4.0V
5.0V
-30
0
0
50 100 150 200 250 300
Iout (mA)
50
100
Iout (mA)
GC3-K028A
Page 10
TK705xxS/TK707xxS,TK706xxH/TK708xxH
! GND Pin Current
Test conditions
Vin
=VoutTYP+1V
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
Vin
Vout
Np
Iout=5mA
Cin
1.0
Cout
1.0
Vcont
µF
µ
F
Vcont
1.8V
Cnp
0.001 F
µ
50
100
Iout (mA)
! Dropout Voltage
2.1V ≤ VoutTYP
! Standby Current (Off state)
Vcont=0V
0
-20
1.E-06
1.E-07
1.E-08
1.E-09
1.E-10
1.E-11
-40
-60
-80
-100
-120
-140
-160
0
50
100
0
2
4
6
8
10 12 14 16
Iout (mA)
Vin (V)
! Control Current
! Control Current, ON/OFF Point
100
90
80
70
60
50
40
30
20
10
0
6.0
5.0
4.0
3.0
Icont
2.0
Vout
1.0
0.0
0
2
4
6
8
10 12 14 16
0.0
1.0
2.0
Vcont (V)
Vcont (V)
GC3-K028A
Page 11
TK705xxS/TK707xxS,TK706xxH/TK708xxH
! Vout vs Vin Regulation Point
2.1V ≤ VoutTYP
Test conditions
Vin
=VoutTYP+1V
40
Vin
Vout
Np
Iout=0,50,100mA
20
0
Iout=5mA
-20
Cin
1.0
Cout
1.0
Vcont
-40
µ
F
µ
F
-60
-80
Vcont
1.8V
Cnp
0.001µF
-100
-120
-140
-160
-200 -100
0
100
200
1.9
10
300
Vin (mV)
∆
! Vout vs Vin Regulation Point
VoutTYP=1.5V
! Vout vs Vin Regulation Point
VoutTYP=2.0V
1.54
2.04
Iout=0,50,100mA
Iout=0,50,100mA
1.52
1.50
1.48
1.46
1.44
1.42
1.40
1.38
1.36
1.34
2.02
2.00
1.98
1.96
1.94
1.92
1.90
1.88
1.86
1.84
1.5
1.6
1.7
1.8
2.0
1.8
1.9
2.0
2.1
2.2
2.3
Vin (V)
Vin (V)
! Reverse Bias Current
Test conditions
Vin=0V
Vin=0V, Vcont=0V
Irev
200
Vin
Vout
Np
180
160
140
120
100
80
Vout =1.5V
Cin
Cout
1.0
Vrev
Vcont
µ
1.0 F
µ
F
Vout =2.0V
Vout =3.0V
4.0V
Vcont
0V
Cnp
0.001
5.0V
µ
F
60
40
20
0
0
2
4
6
8
12
Vrev (V)
GC3-K028A
Page 12
TK705xxS/TK707xxS,TK706xxH/TK708xxH
11-1-2. Temperature Characteristics
! Vout
Test conditions
VoutTYP=3.0V
Vin
=VoutTYP+1V
20
10
Vin
Vout
Np
Iout=5mA
Cin
1.0
Cout
1.0
0
Vcont
µ
F
µ
F
-10
-20
Vcont
1.8V
Cnp
0.001µF
35.15 ppm/
℃
-30
-40
-40 -20
0
20 40 60 80 100
Ta
（℃）
! Peak Output Current
Vout=VoutTYP × 0.9
! GND Pin Current
Iout=100mA
Iout=50mA
Iout=30mA
250
200
150
100
50
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
0
-40 -20
0
20 40 60 80 100
Ta(°C)
-40 -20
0
20 40 60 80 100
Ta(
)
℃
! Dropout Voltage
2.1V ≤ VoutTYP
! Quiescent Current
Iout=0mA
Iout=100mA
Iout=50mA
Iout=30mA
300
250
200
150
100
50
160
140
120
100
80
60
40
20
0
0
-40 -20
0
20 40 60 80 100
Ta(°C)
-40 -20
0
20 40 60 80 100
Ta
（℃）
GC3-K028A
Page 13
TK705xxS/TK707xxS,TK706xxH/TK708xxH
Test conditions
Vin
=VoutTYP+1V
Vin
Vout
Np
Iout=5mA
Cin
1.0
Cout
1.0
Vcont
µ
F
µ
F
Vcont
1.8V
Cnp
0.001 F
µ
! Load Regulation
VoutTYP=3.0V
! Line Regulation
∆Vin = 5V
0
-10
-20
-30
-40
-50
20
15
10
5
Iout=30mA
Iout=50mA
Iout=100mA
0
-5
-10
-15
-20
-60
-40 -20
0
20 40 60 80 100
Ta(
-40 -20
0
20 40 60 80 100
)
℃
Ta(
)
℃
! Control Current
! ON/OFF Point
Vcont =4V
Vcont =3V
Vcont =2V
Vcont=1.8V
20
2.0
18
1.8
16
1.6
14
1.4
12
1.2
10
1.0
8
0.8
Vout _ON
Vout _OFF
6
0.6
4
0.4
2
0.2
0
0.0
-40 -20
0
20 40 60 80 100
Ta(
-40 -20
0
20 40 60 80 100
Ta
)
℃
（℃）
GC3-K028A
Page 14
TK705xxS/TK707xxS,TK706xxH/TK708xxH
11-2. AC CHARACTERISTICS (VoutTYP=3.0V)
Ripple Rejection
! Cout=0.22µF, 0.47µF, 1.0µF, 2.2µF
Test conditions
Vripple
Vin(DC)=VoutTYP+1.5V
200mVp-p
Cout=0.22µF
0.47µF
Vin
Vout
Iout=10mA
Cout
1.0
1.0µF
2.2µF
Vcont
Np
f=100Hz 1MHz
µF
Vcont
1.8V
Cnp
0.001µF
! Iout=10mA, 20mA, 50mA, 100mA
! Cnp=0.001µF, 0.01µF, 0.1µF
Iout=100mA
50mA
20mA
10mA
Cnp=0.001µF
Cnp=0.01µF
0.1µF
! R.R vs Iout : Frequency=1kHz
! R.R vs Low Vin : Frequency=1kHz
Iout=100mA
Iout=50mA
Iout=20mA
Iout=10mA
Iout=1mA
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
0
20
40
60
80
100
0
0.2
0.4
0.6
0.8
1
Iout (mA)
Vin-Vout(Typ) (V)
The ripple rejection (R.R) characteristic depends on the characteristic and the capacitance of the capacitor connected at
the output side. Also it depends on the output voltage. The R.R characteristic at 50kHz or more varies greatly with the
capacitor on the output side and PCB pattern. If necessary, please check stability during operation.
GC3-K028A
Page 15
TK705xxS/TK707xxS,TK706xxH/TK708xxH
ON/OFF Transient
Test conditions
Vin
=VoutTYP+1V
Vin
Vout
Np
Vcont
Iout=30mA
Cin
Cout
1.0
Vcont
1.0
µF
µ
F
Rise Time
Vout×95%
Vcont=0V 2V
(f=100Hz)
Cnp
0.001 F
µ
Vout
Time
! Cout=0.47µF, 1.0µF, 2.2µF
! Cout=0.47µF, 1.0µF, 2.2µF
! Cnp=0.001µF, 0.01µF, 0.1µF
The rise time of the regulator depends on Cout and Cnp.
The fall time depends on Cout.
GC3-K028A
Page 16
TK705xxS/TK707xxS,TK706xxH/TK708xxH
LOAD Transient
Test conditions
Vin
=VoutTYP+1V
Vin
Vout
Np
Iout
ON OFF
Cin
1.0
Cout
1.0
Vcont
µ
F
µ
F
Vcont
1.8V
Cnp
0.001µF
! Iout=0 100mA, 5 105mA
! Iout=100mA 0mA, 105mA 5mA
! Cout=0.47µF, 1.0µF, 2.2µF : Iout=0mA 100mA
! Cout=0.47µF, 1.0µF, 2.2µF : Iout=100mA 0mA
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.
GC3-K028A
Page 17
TK705xxS/TK707xxS,TK706xxH/TK708xxH
LINE Transient
! Cnp=0.001µF, 0.01µF, 0.1µF
Test conditions
Vin
=VoutTYP+1V +2V
Vin
Vout
Np
Iout=30mA
Cout
1.0
Vcont
µF
Vcont
1.8V
Cnp
0.001µF
! Cout=0.1µF, 0.22µF, 0.47µF
! Cout=1.0µF, 2.2µF
GC3-K028A
Page 18
TK705xxS/TK707xxS,TK706xxH/TK708xxH
Output Noise Characteristics
! Vout vs Noise
Test conditions
Vin
=VoutTYP+1V
80
70
60
50
40
30
20
10
0
Vin
Vout
Np
Iout=30mA
Cin
1.0
Cout
1.0
Vcont
µF
µ
F
Vcont
1.8V
Cnp
0.01
µF
BPF=400Hz 80kHz
1.0
2.0
3.0
4.0
5.0
Vout(Typ) (V)
! Cnp vs Noise
! Iout vs Noise
Cout=0.22uF
Cout=0.47uF
Cout=1.0uF
Cout=2.2uF
Cout=0.22uF
Cout=0.47uF
Cout=1.0uF
Cout=2.2uF
70
65
60
55
50
45
40
35
30
25
20
300
250
200
150
100
50
0
0
20
40
60
80
100
1p
10p 100p 1000p 0.01u 0.1u
Cnp (F)
Iout (mA)
Increase Cnp to decrease the noise. The recommended Cnp capacitance is 0.01µF 0.1µF.
The amount of noise increases with the higher output voltages.
GC3-K028A
Page 19
TK705xxS/TK707xxS,TK706xxH/TK708xxH
12. PIN DESCRIPTION
Pin
Pin No.
Internal Equivalent Circuit
Description
On/Off Control Terminal
Description
Vcont
TK705xxS : 1
TK707xxS : 3
TK706xxH : 1
TK708xxH : 3
Vcont
V
CONT > 1.8V : ON
VCONT < 0.35V : OFF
320k
Ω
Ω
The pull-down resister (500kΩ) is built-in.
500k
TK705xxS : 2
TK707xxS : 2
TK706xxH : 2,5
TK708xxH : 2,5
TK705xxS : 3
TK707xxS : 4
TK706xxH : 3
TK708xxH : 4
GND
Np
GND Terminal
Np
Noise Bypass Terminal
Connect a bypass capacitor between GND.
Vout
TK705xxS : 4
TK707xxS : 5
TK706xxH : 4
TK708xxH : 6
Vout
Output Terminal
Vin
Vref
TK705xxS : 5
TK707xxS : 1
TK706xxH : 6
TK708xxH : 1
Vin
Input Terminal
GC3-K028A
Page 20
TK705xxS/TK707xxS,TK706xxH/TK708xxH
13. APPLICATIONS INFORMATION
13-1. Definition of Technical Terms
Relating Protection Circuit
Relating Characteristic
♦ 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.
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
♦ 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 the chip reaches around
140°C, but it turns on again when the temperature of the
chip decreases.
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.)
♦ Reverse Voltage Protection
♦ Peak maximum output current (IoutPEAK
)
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
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)
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 an
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.
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.
Vin
Vout
♦ 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.
♦ ESD
It is tested by connecting charged capacitor to GND pin
and Vin pin.
♦ Standby current (Istandby)
It is an input current, which flows to the control terminal,
when the IC is turned off.
MM 200pF 0Ω 200Vmin
HBM 100pF 1.5kΩ 2000Vmin
GC3-K028A
Page 21
TK705xxS/TK707xxS,TK706xxH/TK708xxH
13-2. ESR Stability
Fig.13-2 shows stable operation with a ceramic
capacitor of 0.22µF. 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.
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 side,
the IC provides stable operation at any voltage
(1.3V≤VoutTYP≤5.0V). (The capacitor must be larger then
0.22µF at all temperature and voltage range) If the
capacitor with high Equivalent Series Resistance (ESR)
(several ohms) 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.
For evaluation
Kyocera:
CM05B104K10AB, CM05B224K10AB,
CM105B104K16A, CM105B224K16A,
CM21B225K10A
Murata:
GRM36B104K10, GRM42B104K10,
GRM39B104K25, GRM39B224K10,
GRM39B105K6.3
A recommended value of the application is as follows.
The input capacitor is necessary in case the battery
voltage drops, the power supply impedance increases, or
the distance to the power supply is far. 1 input capacitor
might be necessary for each IC or for several ICs. It
depends on circuit condition. Please confirm the stability
by each circuit.
Cin=Cout≥0.47µF Ceramic Capacitance
Fig.13-1
TK705xxS
Vin
Vout
TK707xxS
TK706xxH
TK708xxH
Cin
≥
0.47
µF
Cout≥0.47µF
Fig.13-3
Cnp
0.001µF
ex. Ceramic Capacitance vs. Voltage, Temperature
≥
GND
Fig.13-2
Output Voltage, Output Current vs.Stable Operation Area
Cout=0.1µF
Cout=0.22µF
100
10
100
10
Unstable area
Unstable area
1
1
Stable area
Stable area
0.1
0.01
0.1
0.01
Unstable area
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.
0
20 40 60 80 100
Iout (mA)
0
20 40 60 80 100
Iout (mA)
1.5V ≤ VoutTYP ≤ 5.0V
GC3-K028A
Page 22
TK705xxS/TK707xxS,TK706xxH/TK708xxH
13-3. Operating Region and Power Dissipation
Method of obtaining Pd easily
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.
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.
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.
Pd(mW) Vin (V) × Iin (mA)
When the device is mounted, mostly achieve
TK705xxS/TK707xxS (SOT23-5): 580mW or more
TK706xxH/TK708xxH (SON2017-6): 500mW or more
The thermal resistance when mounted on PCB
*In case that the power, Vin × Ishort(Short Circuit Current),
becomes more than the maximum rating of its power dissipation,
the IC may damaged before internal thermal protection works.
The chip joint temperature during operation is shown by
Tj=θja×Pd+Ta. Joint part temperature (Tj) of
TK705xxS/TK707xxS/TK706xxH/TK708xxH is limited
around 140°C with the overheating protection circuit. Pd
is the value when the overheating protection circuit starts
operation.
Pd(mW)
2
Pd
When you assume the ambient temperature to be 25°C,
140=θ ja × Pd(W)+25
θ ja × Pd=115
D Pd
5
3
4
θ ja=115/Pd (°C /W)
0
Example of mounting substrate
0
25 50
100
140°C
75
°C
Ta(°C)
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)
PCB Material: Two layer glass epoxy substrate
(x=30mm,y=30mm,t=1.0mm,Copper pattern thickness
35um)
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.
TK705xxS/TK707xxS (SOT23-5)
Please do the derating with 5.9mW/°C at Pd=677mW and
25°C or higher. Thermal resistance (θ ja) is 170°C/W.
TK706xxH/TK708xxH (SON2017-6)
Please do the derating with 4.9mW/°C at Pd=560mW and
25°C or higher. Thermal resistance (θ ja) is 205°C/W.
GC3-K028A
Page 23
TK705xxS/TK707xxS,TK706xxH/TK708xxH
13-4. ON/OFF Control
13-6. The notes of the evaluation when
output terminal is short-circuit to GND
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.
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 Bip 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.
Control Terminal Voltage (Vcont) ON/OFF State
Vcont > 1.8V
Vcont < 0.35V
ON
OFF
Parallel Connected ON/OFF Control
Fig.13-4
Vout
Generally, when using tantalum or large electrolysis
capacitor, the influence of resonance phenomenon can be
reduced due to the large ESR (2ohms or more).
5V
TK70550S
TK70533S
TK70520S
Vin
3.3V
2.0V
R
On/Off Cont.
Fig.13-4 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 (TK70520S) 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.
13-5. 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.
GC3-K028A
Page 24
TK705xxS/TK707xxS,TK706xxH/TK708xxH
14. NOTES
15. OFFICES
! 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.
If you need more information on this product and other
TOKO products, please contact us.
! TOKO Inc. Headquarters
1-17, Higashi-yukigaya 2-chome, Ohta-ku, Tokyo,
145-8585, Japan
" 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.
TEL: +81.3.3727.1161
FAX: +81.3.3727.1176 or +81.3.3727.1169
Web site: http://www.toko.co.jp/
! TOKO America
Web site: http://www.toko.com/
" 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.
! TOKO Europe
Web site: http://www.tokoeurope.com/
! TOKO Hong Kong
Web site: http://www.toko.com.hk/
" 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 Aug. 2005. 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.
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GC3-K028A
Page 25
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