GC3-H028A
Page 1
APPLICATION MANUAL
LDO Regulator with base terminal for Current Boost
TK714xxS
CONTENTS
1 . DESCRIPTION
2
2 . FEATURES
2
3 . APPLICATIONS
2
4 . PIN CONFIGURATION
2
5 . BLOCK DIAGRAM
2
6 . ORDERING INFORMATION
3
7 . ABSOLUTE MAXIMUM RATINGS
4
8 . ELECTRICAL CHARACTERISTICS
4
9 . TEST CIRCUIT
5
10 . TYPICAL CHARACTERISTICS
7
11 . PIN DESCRIPTION
15
12 . APPLICATIONS INFORMATION
15
13 .Outline : PCB : Stamps
19
14 . NOTES
20
15. OFFICES
20
MEETING YOUR NEEDS
TK714xxS
GC3-H028A
Page 2
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).
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
(CL0.022
F,Iout2mA)
High ripple rejection (-70dB at 1kHz)
100mA load current guarantee
Output voltage available from 1.3 to 5.0V (0.1V step).
3. APPLICATIONS
Electronic Equipment
B
attery Powered Systems
Mobile communications, etc.
4. PIN CONFIGURATION
1
2
3
4
5
Vin
Vcont
Vout
Base
GND
TOP VIEW
5. BLOCK DIAGRAM
Over Current
Limit
SW Control
Circuit
Over Heat
Protection
Bandgap
Reference
Error Amp
4
4
4
4
5
5
5
5
3
3
3
3
2
2
2
2
1
1
1
1
Vin
GND
Vcont
BASE
Vout
TK714xxS
GC3-H028A
Page 3
6. ORDERING INFORMATION
TK714
L
S
Voltage Code
EX 33 : 3.3V
50 : 5.0V
Package Code
S : SOT23-5
Tape/Reel Code
Operating Temp Range
C : -30~80
I : -40~85
ORDERING INFORMATION
Standard voltage (net multiplication bold-faced type)
TK71413S
TK71414S
TK71415S
TK71416S
TK71417S
TK71418S
TK71419S
TK71420S
TK71421S
TK71422S
TK71423S
TK71424S
TK71425S
TK71426S
TK71427S
TK71428S
TK71429S
TK71430S
TK71431S
TK71432S
TK71433S
TK71434S
TK71435S
TK71436S
TK71437S
TK71438S
TK71439S
TK71440S
TK71441S
TK71442S
TK71443S
TK71444S
TK71445S
TK71446S
TK71447S
TK71448S
TK71449S
TK71450S
*Please contact your authorized TOKO representatives for voltage availability.
TK714xxS
GC3-H028A
Page 4
7. ABSOLUTE MAXIMUM RATINGS
Ta=25
C
Parameter
Symbol
Rating
Units
Conditions
Absolute Maximum Ratings
Supply Voltage
Vcc
MAX
-0.4 ~ 16
V
Reverse Bias
Vrev
MAX
-0.4 ~ 6
V
Control pin Voltage
Vcont
MAX
-0.4 ~ 16
V
Base Drive pin Voltage
Vbase
MAX
-0.4 ~ 16
V
Storage Temperature Range
T
stg
-55 ~ 150
C
Power Dissipation
P
D
500 when mounted on PCB
mW
* Internal Limited Tj=150C
Operating Condition
Operating Temperature Range
T
OP
-30 ~ 80
C
Operating Voltage Range
V
OP
1.8 ~ 14
V
Short Circuit Current
Ishort
200
mA
8. ELECTRICAL CHARACTERISTICS
Unless otherwise specified Vin=VoutTyp+1.0V ,Vcont=1.8V Ta=25
C
Value
Parameter
Symbol
Min
Typ
Max
Units
Conditions
Output Voltage
Vout
2% or 60mV *1
V
Iout=5mA
Line Regulation
LinReg
1.0
5.0
mV
Vin=5V
0.7
3.0
%Vout
Iout=5 ~ 100mA (Vout=1.5~2.0V)
Load Regulation
LoaReg
0.6
2.5
%Vout
Iout=5 ~ 100mA (Vout=2.1~5.0V)
105
180
mV
Iout=50mA *2
Dropout Voltage
Vdrop
180
280
mV
Iout=100mA *2
Maximum Output Current
IoutMAX
120
150
mA
Vout 10% drop
Supply Current
Icc
50
80
A
Vout ON state Iout=0mA
Standby Current
Istandby
0
0.1
A
Vout OFF state Vin=10V
Base drive Current
Ibase
7
10
mA
*3
Control Terminal
Control Current
Icont
0.9
3.0
A
Vcont=1.8V Output ON state
1.8
V
Vout ON state
Control Voltage
Vcont
0.8
V
Vout OFF state
*1 Refer to Table 1.
*2 For Vout2.0V, 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.
TK714xxS
GC3-H028A
Page 5
Output voltage standard table (
2% or 60mV)
Table 1
Vout
TYP (V)
Vout
Min (V)
Vout
MAX (V)
Vin (V)
Vout
TYP (V)
Vout
Min (V)
Vout
MAX (V)
Vin (V)
1.3
1.240
1.360
2.3
3.2
3.136
3.264
4.2
1.4
1.340
1.460
2.4
3.3
3.234
3.366
4.3
1.5
1.440
1.560
2.5
3.4
3.232
3.468
4.4
1.6
1.540
1.660
2.6
3.5
3.430
3.570
4.5
1.7
1.640
1.760
2.7
3.6
3.528
3.672
4.6
1.8
1.740
1.860
2.8
3.7
3.626
3.774
4.7
1.9
1.840
1.960
2.9
3.8
3.724
3.876
4.8
2.0
1.940
2.060
3.0
3.9
3.822
3.978
4.9
2.1
2.040
2.160
3.1
4.0
3.920
4.080
5.0
2.2
2.140
2.260
3.2
4.1
4.018
4.182
5.1
2.3
2.240
2.360
3.3
4.2
4.116
4.284
5.2
2.4
2.340
2.460
3.4
4.3
4.214
4.386
5.3
2.5
2.440
2.560
3.5
4.4
4.312
4.488
5.4
2.6
2.540
2.660
3.6
4.5
4.410
4.590
5.5
2.7
2.640
2.760
3.7
4.6
4.508
4.692
5.6
2.8
2.740
2.860
3.8
4.7
4.606
4.794
5.7
2.9
2.840
2.960
3.9
4.8
4.704
4.896
5.8
3.0
2.940
3.060
4.0
4.9
4.802
4.998
5.9
3.1
3.038
3.162
4.1
5.0
4.900
5.100
6.0
9. TEST CIRCUIT
Standard circuit (Iout100mA)
Applied circuit: When external PNPTr is used
Vin
A
V
A
1
2
3
4
5
Vin
GND
Vcont
Vout
Base
CL
0.1
F
Iout
Cin
0.1
F
Iin
Vout
Icont
Vcont
Vin
A
V
A
1
2
3
4
5
Vin
GND
Vcont
Vout
Base
CL
Iout
Cin
0.1
F
Iin
Vout
Icont
Vcont
EXTERNAL PNP Tr
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