TK715xxAS
LOW DROPOUT VOLTAGE REGULATOR
FEATURES
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High Voltage Precision at ± 2.0% or ± 60 mV
Very Low Quiescent Current
Very Low Dropout Voltage
Reverse Voltage Protection
Miniature Package (SOT23-3)
Short Circuit Protection
High Ripple Rejection
Can use Multilayer Ceramic Capacitors
APPLICATIONS
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Battery Powered Systems
Cellular Telephones
Pagers
Personal Communications Equipment
Portable Instrumentation
Portable Consumer Equipment
Radio Control Systems
Toys
Low Voltage Systems
DESCRIPTION
The TK715xx is a low dropout linear regulator housed in a
small SOT23-3 package, rated at 400 mW. An internal
PNP transistor is used to achieve a low dropout voltage of
105 mV (typ.) at 50 mA load current. This device offers
high precision output voltage of ± 2.0 % or ± 60 mV. The
TK715xx has a very low quiescent current of 25 µA (typ.)
at no load. The low quiescent current and dropout voltage
make this part ideal for battery powered applications. The
internal reverse bias protection eliminates the requirement
for a reverse voltage protection diode, saving cost and
board space. The high 60 dB ripple rejection and low noise
provide enhanced performance for critical applications.
TK715xxAS
VIN
VOUT
30T
20P
GND
ORDERING INFORMATION
TK715
Voltage Code
ASCL
Tape/ Reel Code
Temp. Code
Package Code
BLOCK DIAGRAM
VOLTAGE CODE
15 = 1.5 V
16 = 1.6 V
17 = 1.7 V
18 = 1.8 V
19 = 1.9 V
20 = 2.0 V
21 = 2.1 V
22 = 2.2 V
23 = 2.3 V
24 = 2.4 V
25 = 2.5 V
26 = 2.6 V
27 = 2.7 V
28 = 2.8 V
29 = 2.9 V
30 = 3.0 V
31 = 3.1 V
32 = 3.2 V
33 = 3.3 V
34 = 3.4 V
35 = 3.5 V
36 = 3.6 V
37 = 3.7 V
38 = 3.8 V
39 = 3.9 V
40 = 4.0 V
41 = 4.1 V
42 = 4.2 V
43 = 4.3 V
44 = 4.4 V
45 = 4.5 V
46 = 4.6 V
47 = 4.7 V
48 = 4.8 V
49 = 4.9 V
50 = 5.0 V
60 = 6.0 V
70 = 7.0 V
80 = 8.0 V
90 = 9.0 V
TEMPERATURE CODE
C -30 to +80 °C
TAPE/REEL CODE
L: Tape Left
VIN
VOUT
THERMAL
PROTECTION
PACKAGE CODE
S : SOT-23-3
-
+
-
+
BANDGAP
REFERENCE
GND
March 2001 TOKO, Inc.
Page 1
TK715xxAS
ABSOLUTE MAXIMUM RATINGS (V
OUT
£
5.0 V)
Supply Voltage ............................................. -0.4 to 19 V
Power Dissipation (Note 1) ................................ 400 mW
Reverse Bias ............................................................. 8 V
Short Circuit Current ........................................... 170 mA
Storage Temperature (Ambient) .............. -55 to +150 °C
Operating Temperature (Ambient) ............ -30 to +80 °C
Max. Operating Temperature (Junction) ............. 125 °C
Operating Voltage Range ........................... 1.8 to 18.0 V
Junction Temperature ......................................... 150 °C
Lead Soldering Temperature (10 s) ..................... 235 °C
TK715xx ELECTRICAL CHARACTERISTICS (V
OUT
£
5.0 V)
Test conditions: V
IN
= V
OUT(TYP)
+ 1V, T
A
= 25 °C, unless otherwise specified.
SYMBOL
I
Q
I
GND
V
OUT
Line Reg
Load Reg
PARAMETER
Quiescent Current
Ground Pin Current
Output Voltage
Line Regulation
Load Regulation
TEST CONDITIONS
I
OUT
= 0 mA
I
OUT
= 15 mA
I
OUT
= 5 mA
V
IN
= V
OUT(TYP)
+ 1 V to V
OUT(TYP)
+ 6 V
I
OUT
= 5 to 100 mA, (Note 2)
I
OUT
= 50 mA
MIN
TYP
25
300
See Table 1
3
18
0.105
0.16
0.16
MAX
45
500
UNITS
µA
µA
V
12
36
0.18
0.28
0.30
mV
mV
V
V
V
mA
V
DROP
Dropout Voltage (Note 5)
I
OUT
= 100 mA, 2.4 V
£
V
OUT
£
5.0 V
I
OUT
= 100 mA, 2.1 V
£
V
OUT
£
2.4 V
115
155
90
60
30
dB
ppm/°C
I
OUT(MAX)
RR
Continuous Output Current
Ripple Rejection
1.8
V
£
V
in
£
2.1 V (Note 3)
(Note 4)
I
OUT
= 5 mA
70
∆V
OUT
/
∆T
Temperature Coefficient
Note 1: Power dissipation is 400 mW when mounted as recommended. Derate at 3.2 mW/°C for operation above 25 °C.
Note 2: Refer to “Definition of Terms.”
Note 3: Please refer to the Applications Section for more information.
Note 4: Ripple rejection is measured at V
R
= 200 mVrms, V
IN
= V
OUT(TYP)
+ 2 V, I
OUT
= 10 mA, C
L
= 2.2 µF, f = 100 Hz.
Note 5: The minimum operating voltage for V
IN
can be 1.8 V. Also, the minimum voltage required for V
IN
is V
IN
= V
DROP
+ V
OUT
. As a result, operating at
V
OUT
£
2.0 V at the minimum input operating voltage is not preferred.
Gen. Note: Parameters with min. or max. values are 100% tested at T
A
= 25 °C.
Page 2
March 2001 TOKO, Inc.
TK715xxAS
ABSOLUTE MAXIMUM RATINGS (V
OUT
³
5.1 V)
Supply Voltage ............................................. -0.4 to 19 V
Power Dissipation (Note 1) ................................ 400 mW
Reverse Bias ............................................................. 8 V
Short Circuit Current ........................................... 170 mA
Storage Temperature (Ambient) .............. -55 to +150 °C
Operating Temperature (Ambient) ............ -30 to +80 °C
Max. Operating Temperature (Junction) ............. 125 °C
Operating Voltage Range .............................. 1.8 to 18 V
Junction Temperature ......................................... 150 °C
Lead Soldering Temperature (10 s) ..................... 235 °C
TK715xx ELECTRICAL CHARACTERISTICS (V
OUT
³
5.1 V)
Test conditions: V
IN
= V
OUT(TYP)
+ 1V, T
A
= 25 °C, unless otherwise specified.
SYMBOL
I
Q
I
GND
V
OUT
Line Reg
Load Reg
V
DROP
I
OUT(MAX)
RR
∆V
OUT
/
∆T
PARAMETER
Quiescent Current
Ground Pin Current
Output Voltage
Line Regulation
Load Regulation
Dropout Voltage
Continuous Output Current
Ripple Rejection
Temperature Coefficient
TEST CONDITIONS
I
OUT
= 0 mA
I
OUT
= 15 mA
I
OUT
= 5 mA
V
IN
= V
OUT(TYP)
+ 1 V to
V
OUT(TYP)
+ 6 V or Max 18 V
I
OUT
= 5 to 100 mA, (Note 2)
I
OUT
= 50 mA
I
OUT
= 100 mA
MIN
TYP
32
300
See Table 1
3
35
0.105
0.160
MAX
60
500
UNITS
µA
µA
V
12
80
0.18
0.28
mV
mV
V
V
mA
dB
ppm/°C
115
(Note 3)
I
OUT
= 5 mA
155
60
30
Note 1: Power dissipation is 400 mW when mounted as recommended. Derate at 3.2 mW/°C for operation above 25 °C.
Note 2: Refer to “Definition of Terms.”
Note 3: Ripple rejection is measured at V
R
= 200 mVrms, V
IN
= V
OUT(TYP)
+ 2 V, I
OUT
= 10 mA, C
L
= 2.2 µF, f = 100 Hz.
Gen. Note: Parameters with min. or max. values are 100% tested at T
A
= 25 °C.
March 2001 TOKO, Inc.
Page 3
TK715xxAS
TK715xxAS ELECTRICAL CHARACTERISTICS TABLE 1
Output
Voltage
1.5 V
1.6 V
1.7 V
1.8 V
1.9 V
2.0 V
2.1 V
2.2 V
2.3 V
2.4 V
2.5 V
2.6 V
2.7 V
2.8 V
2.9 V
3.0 V
3.1 V
3.2 V
3.3 V
3.4 V
Voltage
Code
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
V
OUT(MIN)
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
3.040
3.140
3.240
3.340
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
OUT(MAX)
1.560
1.660
1.760
1.860
1.960
2.060
2.160
2.260
2.360
2.460
2.560
2.660
2.760
2.860
2.960
3.060
3.160
3.260
3.360
3.460
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
Test
Voltage
2.5 V
2.6 V
2.7 V
2.8 V
2.9 V
3.0 V
3.1 V
3.2 V
3.3 V
3.4 V
3.5 V
3.6 V
3.7 V
3.8 V
3.9 V
4.0 V
4.1 V
4.2 V
4.3 V
4.4 V
Output
Voltage
3.5 V
3.6 V
3.7 V
3.8 V
3.9 V
4.0 V
4.1 V
4.2 V
4.3 V
4.4 V
4.5 V
4.6 V
4.7 V
4.8 V
4.9 V
5.0 V
6.0 V
7.0 V
8.0 V
9.0 V
Voltage
Code
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
60
70
80
90
V
OUT(MIN)
3.440
3.530
3.630
3.730
3.830
3.930
4.030
4.130
4.230
4.330
4.430
4.530
4.630
4.730
4.830
4.930
5.880
6.860
7.840
8.820
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
OUT(MAX)
3.560
3.670
3.770
3.870
3.970
4.070
4.170
4.270
4.370
4.470
4.570
4.670
4.770
4.870
4.970
5.070
6.120
7.140
8.160
9.180
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
Test
Voltage
4.5 V
4.6 V
4.7 V
4.8 V
4.9 V
5.0 V
5.1 V
5.2 V
5.3 V
5.4 V
5.5 V
5.6 V
5.7 V
5.8 V
5.9 V
6.0 V
7.0 V
8.0 V
9.0 V
10.0 V
Page 4
March 2001 TOKO, Inc.
TK715xxAS
TEST CIRCUIT
IIN
VIN
CIN
0.1 µF
CL
1.0 µF
TANTALUM
IOUT
VOUT
VIN
VOUT
GND
TYPICAL PERFORMANCE CHARACTERISTICS
T
A
= 25 °C, unless otherwise specified.
LOAD REGULATION
SHORT CIRCUIT CURRENT
5
VOUT (10 mV/ DIV)
OUTPUT VOLTAGE vs.
INPUT VOLTAGE
VOUT TYPICAL
VOUT TYPICAL
4
VOUT (25 mV/ DIV)
IOUT = 0 mA
IOUT = 50 mA
VOUT (V)
3
2
1
IOUT = 100 mA
50 mV/DIV
VIN = VOUT
0
50
IOUT (mA)
100
0
0
100
IOUT (mA)
200
0
VIN (V)
LINE REGULATION
VOUT TYPICAL
REVERSE BIAS CURRENT RANGE
100
80
Because the output voltage is
different, the reverse current
will change this area.
(VIN = 0 V)
INPUT CURRENT
VS.
INPUT VOLTAGE
2
I OUT = 0 mA
VOUT (50 mV/ DIV)
IREV (µA)
60
40
20
0
VOUT = 8.0 V
I Q (mA)
VOUT = 2.0 V
1
VOUT = 3 V
0
0
5
VIN (V)
10
0
10
VIN (V)
20
0
5
VREV (V)
10
March 2001 TOKO, Inc.
Page 5
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