December 1999 TOKO, Inc.
Page 1
TK716xx
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
BLOCK DIAGRAM
TK716xx
20P
GND
VIN
NOISE
BYPASS
VOUT
CONTROL
CONTROL
GND
VIN
VOUT
BANDGAP
REFERENCE
CONSTANT
CURRENT
SOURCE
THERMAL AND
OVERCURRENT
PROTECTION
DISCONNECT
CIRCUIT
NOISE
BYPASS
+
-
CONTROL
CIRCUIT
TK716 SCL
TK716 S I L
TK716 SCL H
ORDERING INFORMATION
TAPE/REEL CODE
L: Tape Left
TEMPERATURE CODE
C: Standard Temp. Range
I: Extended Temp. Range
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
Tape/Reel Code
Voltage Code
Temp. 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
Tolerance Code
Capacitor Code
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
51 = 5.1 V
52 = 5.2 V
53 = 5.3 V
54 = 5.4 V
*Check Table 4
for availability.
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.
APPLICATIONS
s
Battery Powered Systems
s
Cellular Telephones
s
Pagers
s
Personal Communications Equipment
s
Portable Instrumentation
s
Portable Consumer Equipment
s
Radio Control Systems
s
Toys
s
Low Voltage Systems
LOW DROPOUT VOLTAGE REGULATOR
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
µ
Vrms.
Page 2
December 1999 TOKO, Inc.
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.
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
µ
F, C
N
= 0.1
µ
F, 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
µ
V/ Hz at 1 kHz when C
N
= 0.1
µ
F.
L
O
B
M
Y
S
R
E
T
E
M
A
R
A
P
S
N
O
I
T
I
D
N
O
C
T
S
E
T
N
I
M
P
Y
T
X
A
M
S
T
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U
I
Q
t
n
e
r
r
u
C
t
n
e
c
s
e
i
u
Q
I
T
U
O
I
g
n
i
d
u
l
c
x
E
,
A
m
0
=
T
N
O
C
0
7
0
0
1
A
µ
I
Y
B
T
S
t
n
e
r
r
u
C
y
b
d
n
a
t
S
V
N
I
,
V
8
=
V
(
F
F
O
t
u
p
t
u
O
T
N
O
C
≤
)
V
5
1
.
0
1
.
0
A
µ
I
V
E
R
t
n
e
r
r
u
C
s
a
i
B
e
s
r
e
v
e
R
V
N
I
,
V
0
=
V
V
E
R
F
F
O
t
u
p
t
u
O
,
V
5
=
1
0
5
A
n
I
D
N
G
t
n
e
r
r
u
C
n
i
P
D
N
G
I
T
U
O
A
m
0
5
=
1
8
.
1
A
m
I
T
U
O
t
n
e
r
r
u
C
t
u
p
t
u
O
s
u
o
u
n
i
t
n
o
C
0
5
1
A
m
I
)
E
S
L
U
P
(
T
U
O
t
n
e
r
r
u
C
t
u
p
t
u
O
e
s
l
u
P
%
0
4
=
e
l
c
y
C
y
t
u
D
,
e
s
l
u
p
s
m
0
1
0
0
2
A
m
V
T
U
O
e
g
a
t
l
o
V
t
u
p
t
u
O
V
N
I
V
=
)
P
Y
T
(
T
U
O
,
V
1
+
I
T
U
O
A
m
5
=
2
d
n
a
1
e
l
b
a
T
e
e
S
V
∆
V
T
U
O
/
∆
T
e
r
u
t
a
r
e
p
m
e
T
t
n
e
i
c
i
f
f
e
o
C
0
2
C
°
/
m
p
p
g
e
R
e
n
i
L
n
o
i
t
a
l
u
g
e
R
e
n
i
L
V
N
I
V
=
)
P
Y
T
(
T
U
O
V
o
t
V
1
+
)
P
Y
T
(
T
U
O
V
6
+
2
5
1
V
m
g
e
R
d
a
o
L
n
o
i
t
a
l
u
g
e
R
d
a
o
L
I
<
A
m
1
T
U
O
A
m
0
5
<
4
8
1
V
m
I
<
A
m
1
T
U
O
A
m
0
0
1
<
7
8
2
V
m
I
<
A
m
1
T
U
O
A
m
0
5
1
<
2
1
0
5
V
m
V
P
O
R
D
e
g
a
t
l
o
V
t
u
o
p
o
r
D
I
T
U
O
A
m
0
5
=
0
9
0
6
1
V
m
I
T
U
O
A
m
0
0
1
=
0
4
1
0
3
2
V
m
I
T
U
O
A
m
0
5
1
=
V
T
U
O
≥
V
4
.
2
0
0
2
0
0
3
V
m
V
T
U
O
V
4
.
2
<
0
0
2
0
5
3
V
m
V
f
e
r
l
a
n
i
m
r
e
T
s
s
a
p
y
B
e
s
i
o
N
e
g
a
t
l
o
V
6
2
.
1
V
S
N
O
I
T
A
C
I
F
I
C
E
P
S
L
A
N
I
M
R
E
T
L
O
R
T
N
O
C
I
T
N
O
C
t
n
e
r
r
u
C
l
o
r
t
n
o
C
V
T
U
O
,
V
6
.
1
=
N
O
t
u
p
t
u
O
0
1
A
µ
V
)
N
O
(
T
N
O
C
N
O
e
g
a
t
l
o
V
l
o
r
t
n
o
C
N
O
t
u
p
t
u
O
6
.
1
V
V
)
F
F
O
(
T
N
O
C
F
F
O
e
g
a
t
l
o
V
l
o
r
t
n
o
C
F
F
O
t
u
p
t
u
O
6
.
0
V
December 1999 TOKO, Inc.
Page 3
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.
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
V
OUT(MIN)
V
OUT(MAX)
Voltage
Code
1.3 V
13
1.240 V
1.360 V
1.4 V
14
1.340 V
1.460 V
1.5 V
15
1.440 V
1.560 V
1.6 V
16
1.540 V
1.660 V
1.7 V
17
1.650 V
1.760 V
1.8 V
18
1.740 V
1.860 V
1.9 V
19
1.870 V
1.960 V
2.0 V
20
1.940 V
2.060 V
2.1 V
21
2.040 V
2.160 V
2.2 V
22
2.140 V
2.260 V
2.3 V
23
2.240 V
2.360 V
2.4 V
24
2.340 V
2.460 V
2.5 V
25
2.440 V
2.560 V
2.6 V
26
2.540 V
2.660 V
2.7 V
27
2.640 V
2.760 V
2.8 V
28
2.740 V
2.860 V
2.9 V
29
2.840 V
2.960 V
3.0 V
30
2.940 V
3.060 V
3.1 V
31
3.038 V
3.162 V
3.2 V
32
3.136 V
3.264 V
3.3 V
33
3.234 V
3.366 V
Output
Voltage
V
OUT(MIN)
V
OUT(MAX)
Voltage
Code
3.8 V
38
3.760 V
3.840 V
3.9 V
39
3.860 V
3.940 V
4.0 V
40
3.960 V
4.040 V
4.1 V
41
4.059 V
4.141 V
4.2 V
42
4.158 V
4.242 V
4.3 V
43
4.247 V
4.343 V
4.4 V
44
4.356 V
4.444 V
4.5 V
45
4.455 V
4.545 V
4.6 V
46
4.554 V
4.646 V
4.7 V
47
4.653 V
4.747 V
4.8 V
48
4.752 V
4.848 V
4.9 V
49
4.851 V
4.949 V
5.0 V
50
4.950 V
5.050 V
5.1 V
51
5.049 V
5.151 V
5.2 V
52
5.148 V
5.252 V
5.3 V
53
5.247 V
5.353 V
5.4 V
54
5.346 V
5.454 V
Output
Voltage
V
OUT(MIN)
V
OUT(MAX)
Voltage
Code
3.4 V
34
3.232 V
3.468 V
3.5 V
35
3.430 V
3.570 V
3.6 V
36
3.528 V
3.672 V
3.7 V
37
3.626 V
3.774 V
3.8 V
38
3.724 V
3.876 V
3.9 V
39
3.822 V
3.978 V
4.0 V
40
3.920 V
4.080 V
4.1 V
41