TK716xx
LOW DROPOUT VOLTAGE REGULATOR
FEATURES
s
Available in
±
2.0 % or
±
1.0 % Output Tolerance
s
Active High On/Off Control
s
Very Low Quiescent Current
s
Very Low Dropout Voltage
s
Reverse Bias Protection
s
Miniature Package (SOT23-5)
s
Short Circuit Switch
s
High Ripple Rejection
s
Very High Output Impedance (Output Off)
s
Very Low Noise
APPLICATIONS
s
Battery Powered Systems
s
Cellular Telephones
s
Pagers
s
s
s
s
Personal Communications Equipment
Portable Instrumentation
Portable Consumer Equipment
Radio Control Systems
s
Toys
s
Low Voltage Systems
DESCRIPTION
The TK716xx is a low dropout linear regulator housed in a
small SOT23-5 package, rated at 500 mW. The phase
compensation in the IC has been optimized to allow the
use of ceramic or tantalum output capacitors. The device
is in the “on” state when the control pin is pulled to a logic
high level. An internal PNP pass transistor is used to
achieve a low dropout voltage of 90 mV (typ.) at 50 mA
load current. This device offers high precision output
voltage of
±
2.0 % or
±
1.0 %. The low quiescent current
and dropout voltage make this part ideal for battery pow-
ered applications. This part incorporates an output discon-
nect feature to reduce the reverse bias current in the “off”
state to less than 50 nA.
The internal reverse bias protection eliminates the require-
ment for a reverse voltage protection diode, saving cost
and board space. The high 60 dB ripple rejection (400 Hz)
and low noise provide enhanced performance for critical
applications. An external capacitor can be connected to
the noise bypass pin to lower the output noise level to 30
µVrms.
TK716xx
VIN
GND
CONTROL
VOUT
20P
ORDERING INFORMATION
NOISE
BYPASS
TK716
TK716
TK716
Voltage Code
Capacitor Code
Package Code
VOLTAGE CODE*
13 = 1.3 V
14 = 1.4 V
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
*Check Table 4
for availability.
SCL
SIL
SCL H
Tolerance Code
Tape/Reel Code
Temp. Code
TAPE/REEL CODE
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
51 = 5.1 V
52 = 5.2 V
53 = 5.3 V
54 = 5.4 V
L: Tape Left
VIN
BLOCK DIAGRAM
VOUT
CONTROL
CIRCUIT
CONSTANT
CURRENT
SOURCE
THERMAL AND
OVERCURRENT
PROTECTION
BANDGAP
REFERENCE
DISCONNECT
CIRCUIT
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
TEMPERATURE CODE
C: Standard Temp. Range
I: Extended Temp. Range
CONTROL
-
+
PACKAGE CODE
S: SOT23-5
TOLERANCE CODE
H: 1 % Output Voltage Tolerance
(Not available in I temp code)
CAPACITOR CODE
None: Ceramic Capacitor
A: Tantalum Capacitor
GND
NOISE
BYPASS
December 1999 TOKO, Inc.
Page 1
TK716xx
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ......................................................... 16 V
Power Dissipation (Note 1) ................................ 500 mW
Reverse Bias Voltage ................................................. 6 V
Control Terminal Voltage ......................................... 12 V
Noise Bypass Terminal Voltage ................................. 5 V
Operating Voltage Range ............................... 1.8 to 12 V
Storage Temperature Range ................... -55 to +150
°C
Operating Temperature (Ambient) Range
TK716xx SCL, TK716xx SCLH ............ -30 to +80
°C
TK716xx SIL .......................................... -40 to +85
°C
Junction Temperature (Operating) ........................ 125
°C
Junction Temperature (Shutdown) ........................ 150
°C
Lead Soldering Temperature (10 s) ...................... 235
°C
TK716xx SCL AND TK716xx SCLH ELECTRICAL CHARACTERISTICS
Test conditions: V
IN
= V
OUT(TYP)
+ 1 V, T
A
= 25
°C,
unless otherwise specified.
SYMBOL
I
Q
I
STBY
I
REV
I
GND
I
OUT
I
OUT(PULSE)
V
OUT
∆V
OUT
/∆T
Line Reg
PARAMETER
Quiescent Current
Standby Current
Reverse Bias Current
GND Pin Current
Continuous Output Current
Pulse Output Current
Output Voltage
Temperature Coefficient
Line Regulation
TEST CONDITIONS
I
OUT
= 0 mA, Excluding I
CONT
V
IN
= 8 V, Output OFF (V
CONT
≤
0.15 V)
V
IN
= 0 V, V
REV
= 5 V, Output OFF
I
OUT
= 50 mA
MIN
TYP
70
MAX
100
0.1
UNITS
µA
µA
nA
mA
mA
mA
V
ppm/° C
1
1
50
1.8
150
10 ms pulse, Duty Cycle = 40 %
V
IN
= V
OUT(TYP)
+ 1 V, I
OUT
= 5 mA
200
See Table 1 and 2
20
V
IN
= V
OUT(TYP)
+ 1 V to V
OUT(TYP)
+ 6 V
1 mA < I
OUT
< 50 mA
2
4
7
12
90
140
15
18
28
50
160
230
300
350
mV
mV
mV
mV
mV
mV
mV
mV
V
Load Reg Load Regulation
1 mA < I
OUT
< 100 mA
1 mA < I
OUT
< 150 mA
I
OUT
= 50 mA
V
DROP
Dropout Voltage
I
OUT
= 100 mA
I
OUT
= 150 mA
V
OUT
≥
2.4 V
V
OUT
< 2.4 V
200
200
1.26
V
ref
Noise Bypass Terminal
Voltage
CONTROL TERMINAL SPECIFICATIONS
I
CONT
V
CONT(ON)
V
CONT(OFF)
Control Current
Control Voltage ON
Control Voltage OFF
V
OUT
= 1.6 V, Output ON
Output ON
Output OFF
1.6
0.6
10
µA
V
V
Note 1: Power dissipation is 500 mW when mounted as recommended. Derate at 4.0 mW/°C for operation above 25
°C.
Gen Note: Exceeding the “Absolute Maximum Ratings” may damage the device.
Gen Note: Parameters with min. or max. values are 100% tested at T
A
= 25
°C.
Gen Note:
Ripple rejection is @ 60 dB when f = 400 Hz, C
L
= 10
µF,
C
N
= 0.1
µF,
input noise = 100 mVrms, V
IN
= V
OUT(TYP)
+ 1.5 V and I
OUT
= 30 mA.
Gen Note: Output noise is 0.13 ~ 0.23
µV/
Hz at 1 kHz when C
N
= 0.1
µF.
Page 2
December 1999 TOKO, Inc.
TK716xx
TK716xx SCL ELECTRICAL CHARACTERISTICS TABLE 1
Test Conditions: V
IN
= V
OUT(TYP)
+ 1 V, I
OUT
= 5 mA, T
A
= 25
°C,
unless otherwise specified.
Output
Voltage
1.3 V
1.4 V
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
Voltage
Code
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
V
OUT(MIN)
1.240 V
1.340 V
1.440 V
1.540 V
1.650 V
1.740 V
1.870 V
1.940 V
2.040 V
2.140 V
2.240 V
2.340 V
2.440 V
2.540 V
2.640 V
2.740 V
2.840 V
2.940 V
3.038 V
3.136 V
3.234 V
V
OUT(MAX)
1.360 V
1.460 V
1.560 V
1.660 V
1.760 V
1.860 V
1.960 V
2.060 V
2.160 V
2.260 V
2.360 V
2.460 V
2.560 V
2.660 V
2.760 V
2.860 V
2.960 V
3.060 V
3.162 V
3.264 V
3.366 V
Output
Voltage
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
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
Voltage
Code
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
V
OUT(MIN)
3.232 V
3.430 V
3.528 V
3.626 V
3.724 V
3.822 V
3.920 V
4.018 V
4.116 V
4.214 V
4.312 V
4.410 V
4.508 V
4.606 V
4.704 V
4.802 V
4.900 V
4.998 V
5.096 V
5.194 V
5.292 V
V
OUT(MAX)
3.468 V
3.570 V
3.672 V
3.774 V
3.876 V
3.978 V
4.080 V
4.182 V
4.284 V
4.386 V
4.488 V
4.590 V
4.692 V
4.794 V
4.896 V
5.008 V
5.100 V
5.202 V
5.304 V
5.406 V
5.508 V
TK716xx SCLH ELECTRICAL CHARACTERISTICS TABLE 2
Test Conditions: V
IN
= V
OUT(TYP)
+ 1 V, I
OUT
= 5 mA, T
A
= 25
°C,
unless otherwise specified.
Output
Voltage
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
3.5 V
3.6 V
3.7 V
Voltage
Code
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
V
OUT(MIN)
1.960 V
2.060 V
2.160 V
2.260 V
2.360 V
2.460 V
2.560 V
2.660 V
2.760 V
2.860 V
2.960 V
3.060 V
3.160 V
3.260 V
3.360 V
3.460 V
3.560 V
3.660 V
V
OUT(MAX)
2.040 V
2.140 V
2.240 V
2.340 V
2.440 V
2.540 V
2.640 V
2.740 V
2.840 V
2.940 V
3.040 V
3.140 V
3.240 V
3.340 V
3.440 V
3.540 V
3.640 V
3.740 V
Output
Voltage
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
5.1 V
5.2 V
5.3 V
5.4 V
Voltage
Code
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
V
OUT(MIN)
3.760 V
3.860 V
3.960 V
4.059 V
4.158 V
4.247 V
4.356 V
4.455 V
4.554 V
4.653 V
4.752 V
4.851 V
4.950 V
5.049 V
5.148 V
5.247 V
5.346 V
V
OUT(MAX)
3.840 V
3.940 V
4.040 V
4.141 V
4.242 V
4.343 V
4.444 V
4.545 V
4.646 V
4.747 V
4.848 V
4.949 V
5.050 V
5.151 V
5.252 V
5.353 V
5.454 V
December 1999 TOKO, Inc.
Page 3
TK716xx
TK716xx SIL ELECTRICAL CHARACTERISTICS
Test conditions: V
IN
= V
OUT(TYP)
+ 1 V, T
A
= 25
°C,
unless otherwise specified.
SYMBOL
I
Q
I
STBY
I
REV
I
GND
I
OUT
I
OUT(PULSE)
V
OUT
∆V
OUT
/∆T
Line Reg
PARAMETER
Quiescent Current
Standby Current
Reverse Bias Current
GND Pin Current
Continuous Output Current
Pulse Output Current
Output Voltage
Temperature Coefficient
Line Regulation
V
IN
= V
OUT(TYP)
+ 1 V to
V
OUT(TYP)
+ 6 V
1 mA < I
OUT
< 50 mA
1 mA < I
OUT
< 100 mA
I
OUT
= 50 mA
V
DROP
Dropout Voltage
I
OUT
= 100 mA
I
OUT
= 150 mA
V
ref
Noise Bypass Terminal Voltage
10 ms pulse, Duty Cycle = 40 %
V
IN
= V
OUT(TYP)
+ 1 V, I
OUT
= 5 mA
See Table 3
20
2
4
7
90
150
200
1.26
17
20
30
160
240
310
TEST CONDITIONS
I
OUT
= 0 mA, Excluding I
CONT
V
IN
= 8 V, Output OFF
V
IN
= 0 V, V
REV
= 5 V, Output OFF
I
OUT
= 50 mA
1
1
MIN
TYP
70
MAX
100
0.2
70
2.0
150
200
UNITS
µA
µA
nA
mA
mA
mA
V
ppm/° C
mV
mV
mV
mV
mV
mV
V
Load Reg Load Regulation
CONTROL TERMINAL SPECIFICATIONS
I
CONT
V
CONT(ON)
V
CONT(OFF)
Control Current
Control Voltage ON
Control Voltage OFF
V
OUT
= 1.6 V, Output ON
Output ON
Output OFF
1.8
0.4
10
µA
V
V
Gen Note: Exceeding the “Absolute Maximum Ratings” may damage the device.
Gen Note: Parameters with min. or max. values are 100% tested at T
A
= 25
°C.
Gen Note:
Ripple rejection is @ 60 dB when f = 400 Hz, C
L
= 10
µF,
C
N
= 0.1
µF,
input noise = 100 mVrms, V
IN
= V
OUT(TYP)
+ 1.5 V and I
OUT
= 30 mA.
Gen Note: Output noise is 0.13 ~ 0.23
µV/
Hz at 1 kHz when C
N
= 0.1
µF.
Page 4
December 1999 TOKO, Inc.
TK716xx
TK716xx SIL ELECTRICAL CHARACTERISTICS TABLE 3
Test Conditions: V
IN
= V
OUT(TYP)
+ 1 V, I
OUT
= 5 mA, T
A
= 25
°C,
unless otherwise specified.
Room Temp. Range (T
A
= 25
°C)
V
OUT(MIN)
V
OUT(MAX)
2.360 V
2.460 V
2.560 V
2.660 V
2.760 V
2.860 V
2.960 V
3.060 V
3.160 V
3.260 V
3.360 V
3.460 V
3.560 V
3.660 V
3.760 V
3.860 V
3.960 V
4.059 V
4.158 V
4.257 V
4.356 V
4.455 V
4.554 V
4.653 V
4.752 V
4.851 V
4.950 V
2.440 V
2.540 V
2.640 V
2.740 V
2.840 V
2.940 V
3.040 V
3.140 V
3.240 V
3.340 V
3.440 V
3.540 V
3.640 V
3.740 V
3.840 V
3.940 V
4.040 V
4.141 V
4.242 V
4.343 V
4.444 V
4.545 V
4.646 V
4.747 V
4.848 V
5.049 V
5.050 V
Full Temp. Range (T
A
= -40 to +85
°C)
V
OUT(MIN)
V
OUT(MAX)
2.320 V
2.420 V
2.520 V
2.620 V
2.720 V
2.820 V
3.920 V
3.020 V
3.120 V
3.220 V
3.320 V
3.420 V
3.520 V
3.620 V
3.720 V
3.820 V
3.920 V
4.009 V
4.108 V
4.197 V
4.306 V
4.405 V
4.504 V
4.603 V
4.702 V
4.801 V
4.900 V
2.480 V
2.580 V
2.680 V
2.780 V
2.880 V
2.980 V
3.080 V
3.180 V
3.280 V
3.380 V
3.480 V
3.580 V
3.680 V
3.780 V
3.880 V
3.980 V
4.090 V
4.191 V
4.292 V
4.893 V
4.494 V
4.595 V
4.496 V
4.497 V
4.898 V
5.099 V
5.100 V
Output
Voltage
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
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
Voltage
Code
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
December 1999 TOKO, Inc.
Page 5
