APPLICATION MANUAL
LDO Regulator with base terminal for Current Boost
TK714xxS
CONTENTS
1 . DESCRIPTION
2 . FEATURES
3 . APPLICATIONS
4 . PIN CONFIGURATION
5 . BLOCK DIAGRAM
6 . ORDERING INFORMATION
7 . ABSOLUTE MAXIMUM RATINGS
8 . ELECTRICAL CHARACTERISTICS
9 . TEST CIRCUIT
10 . TYPICAL CHARACTERISTICS
11 . PIN DESCRIPTION
12 . APPLICATIONS INFORMATION
13 .Outline : PCB : Stamps
14 . NOTES
15. OFFICES
2
2
2
2
2
3
4
4
5
7
15
15
19
20
20
MEETING YOUR NEEDS
GC3-H028A
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TK714xxS
LDO Regulator with base terminal for
Current Boost
TK714xxS
1. DESCRIPTION
The TK714xxS is a low dropout linear regulator with
internal PNP pass transistor that can supply 100mA load
current. The phase compensation in the IC has been
optimized that the output capacitor can be omitted.
The TK714xxS is provided with the On/Off control
function and also with the base terminal for the external
transistor that 1A low dropout regulator can be easily
composed by connecting external transistor (Hfe around
100).
3. APPLICATIONS
Electronic Equipment
B
attery Powered Systems
Mobile communications, etc.
4. PIN CONFIGURATION
TOP VIEW
Vin
GND
Vcont
1
2
3
4
Base
5
Vout
2. FEATURES
An external transistor can be used.
(Base current Typ10mA)
On/Off control available (High ON).
No input current at Off mode
Excellent output stability
(CL≧0.022µF,Iout≧2mA)
High ripple rejection (-70dB at 1kHz)
100mA load current guarantee
Output voltage available from 1.3 to 5.0V (0.1V step).
5. BLOCK DIAGRAM
Vin
1
5
Vout
SW Control
Circuit
GND
2
Error Amp
Bandgap
Reference
Over Current
Limit
Over Heat
Protection
Vcont
3
4
BASE
GC3-H028A
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TK714xxS
6. ORDERING INFORMATION
ORDERING INFORMATION
TK714
Voltage Code
EX 33 : 3.3V
50 : 5.0V
Package Code
S : SOT23-5
S
L
Tape/Reel Code
Operating Temp Range
C : -30~80℃
I : -40~85℃
Standard voltage (net multiplication bold-faced type)
TK71415S
TK71420S
TK71425S
TK71430S
TK71435S
TK71440S
TK71445S
TK71450S
TK71416S
TK71421S
TK71426S
TK71431S
TK71436S
TK71441S
TK71446S
TK71417S
TK71422S
TK71427S
TK71432S
TK71437S
TK71442S
TK71447S
TK71413S
TK71418S
TK71423S
TK71428S
TK71433S
TK71438S
TK71443S
TK71448S
TK71414S
TK71419S
TK71424S
TK71429S
TK71434S
TK71439S
TK71444S
TK71449S
*Please contact your authorized TOKO representatives for voltage availability.
GC3-H028A
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TK714xxS
7. ABSOLUTE MAXIMUM RATINGS
Ta=25°C
Parameter
Absolute Maximum Ratings
Symbol
Vcc
MAX
Vrev
MAX
Vcont
MAX
Vbase
MAX
T
stg
P
D
T
OP
V
OP
Ishort
Rating
-0.4 ~ 16
-0.4 ~ 6
-0.4 ~ 16
-0.4 ~ 16
-55 ~ 150
500 when mounted on PCB
-30 ~ 80
1.8 ~ 14
200
Units
V
V
V
V
°C
mW
°C
V
mA
Conditions
Supply Voltage
Reverse Bias
Control pin Voltage
Base Drive pin Voltage
Storage Temperature Range
Power Dissipation
Operating Condition
* Internal Limited Tj=150°C
Operating Temperature Range
Operating Voltage Range
Short Circuit Current
8. ELECTRICAL CHARACTERISTICS
Unless otherwise specified Vin=VoutTyp+1.0V ,Vcont=1.8V
Value
Parameter
Symbol
Min
Typ
Max
Output Voltage
Line Regulation
Load Regulation
Dropout Voltage
Maximum Output Current
Supply Current
Standby Current
Base drive Current
Control Terminal
Control Current
Control Voltage
Vout
LinReg
LoaReg
Vdrop
IoutMAX
Icc
Istandby
Ibase
Icont
Vcont
±2%
or
±60mV
*1
1.0
5.0
0.7
3.0
0.6
2.5
105
180
180
280
120
150
50
80
0
0.1
7
10
0.9
1.8
0.8
3.0
Ta=25
°
C
Units
V
mV
%Vout
%Vout
mV
mV
mA
µA
µA
mA
µA
V
V
Conditions
Iout=5mA
∆Vin=5V
Iout=5 ~ 100mA (Vout=1.5~2.0V)
Iout=5 ~ 100mA (Vout=2.1~5.0V)
Iout=50mA *2
Iout=100mA *2
Vout 10% drop
Vout ON state Iout=0mA
Vout OFF state Vin=10V
*3
Vcont=1.8V Output ON state
Vout ON state
Vout OFF state
*1 Refer to Table 1.
*2 For Vout≦2.0V, no regulations.
*3 Make sure that this terminal is not connected to GND otherwise the IC may damaged with excessive current due to
circuit structure.
I rank (-40~85℃) is separately provided.
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TK714xxS
Output voltage standard table (
±2%
or
±60mV)
Vout
TYP (V)
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
3.1
Vout
Min (V)
1.240
1.340
1.440
1.540
1.640
1.740
1.840
1.940
2.040
2.140
2.240
2.340
2.440
2.540
2.640
2.740
2.840
2.940
3.038
Vout
Vin (V)
MAX (V)
1.360
2.3
1.460
2.4
1.560
2.5
1.660
2.6
1.760
2.7
1.860
2.8
1.960
2.9
2.060
3.0
2.160
3.1
2.260
3.2
2.360
3.3
2.460
3.4
2.560
3.5
2.660
3.6
2.760
3.7
2.860
3.8
2.960
3.9
3.060
4.0
3.162
4.1
Table 1
Vout
TYP (V)
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
4.0
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
5.0
Vout
Min (V)
3.136
3.234
3.232
3.430
3.528
3.626
3.724
3.822
3.920
4.018
4.116
4.214
4.312
4.410
4.508
4.606
4.704
4.802
4.900
Vout
Vin (V)
MAX (V)
3.264
4.2
3.366
4.3
3.468
4.4
3.570
4.5
3.672
4.6
3.774
4.7
3.876
4.8
3.978
4.9
4.080
5.0
4.182
5.1
4.284
5.2
4.386
5.3
4.488
5.4
4.590
5.5
4.692
5.6
4.794
5.7
4.896
5.8
4.998
5.9
5.100
6.0
9. TEST CIRCUIT
Standard circuit
(Iout≦100mA)
Applied circuit:
When external PNPTr is used
EXTERNAL PNP Tr
Vin
Iin
A
Vout
5
1
Vin
Iin
A
Vout
5
1
Vin
Cin
0.1µF
µ
GND
2
CL
0.1µF
µ
V
Iout
Vout
Vin
Icont
A
Cin
0.1µF
µ
GND
2
CL
Iout
Vout
V
3
Vcont
4
Base
Icont
A
3
Vcont
4
Base
Vcont
Vcont
GC3-H028A
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