July 2000 TOKO, Inc.
Page 1
TK711xx
VIN
VOUT
THERMAL
PROTECTION
GND
BANDGAP
REFERENCE
APPLICATIONS
s
Battery Powered Systems
s
Portable Consumer Equipment
s
Cordless Telephones
s
Personal Communications Equipment
s
Radio Control Systems
s
Toys
s
Low Voltage Systems
FEATURES
s
Low Dropout Voltage
s
Low Quiescent Current
s
Very Stable Output
s
Short Circuit Protected
s
Thermal Overload Protected
s
Standard TO-92 Package
TK711xx
BLOCK DIAGRAM
PIN 1. OUTPUT
2. GROUND
3. INPUT
1
2
3
DESCRIPTION
The TK711xx is a low dropout, linear regulator housed in
a standard TO-92 package, rated at 500 mW. An internal
PNP transistor is used to achieve a low dropout voltage of
100 mV (typ.) at 30 mA load current. The TK711xx has a
low quiescent current of 130
µ
A (typ.) at no load. The low
quiescent current and dropout voltage make this part ideal
for battery powered applications.
ORDERING INFORMATION
TAPE/REEL CODE
NT: Tape Left
Tape/Reel Code
TK711
VoltageCode
VOLTAGE CODE
20 = 2.0 V
35 = 3.5 V
25 = 2.5 V
40 = 4.0 V
30 = 3.0 V
45 = 4.5 V
33 = 3.3 V
50 = 5.0 V
150
LOW DROPOUT REGULATOR
NOT RECOMMENDED
FOR NEW DESIGNS
Page 2
July 2000 TOKO, Inc.
TK711xx
TK71120 ELECTRICAL CHARACTERISTICS
Test Conditions: V
IN
= 3 V, T
A
= 25
°
C, unless otherwise specified.
Note 1: Power dissipation is 500 mW when mounted. Derate at 4 mW/
°
C for operation above 25
°
C.
ABSOLUTE MAXIMUM RATINGS
Input Voltage ............................................................ 15 V
Power Dissipation (Note 1) ................................ 500 mW
Operating Voltage Range ............................... 1.4 to 14 V
Junction Temperature ........................................... 150
°
C
Storage Temperature Range ................... -55 to +150
°
C
Operating Temperature Range ................... -20 to +75
°
C
Lead Soldering Temperature (10 s) ...................... 235
°
C
L
O
B
M
Y
S
R
E
T
E
M
A
R
A
P
S
N
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N
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I
,
V
0
.
3
=
T
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O
A
m
0
=
0
3
1
0
0
3
A
µ
V
N
I
I
,
V
9
.
1
=
T
U
O
A
m
0
=
4
.
1
0
.
3
A
m
V
T
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g
a
t
l
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R
V
N
I
I
,
V
0
.
3
=
T
U
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A
m
0
1
=
9
.
1
0
.
2
1
.
2
V
V
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V
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V
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3
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T
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m
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1
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3
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z
H
0
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4
=
f
,
F
µ
3
.
3
=
T
U
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A
m
0
1
=
3
6
B
d
∆
V
T
U
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/
∆
T
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T
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C
5
1
.
0
C
°
/
V
m
July 2000 TOKO, Inc.
Page 3
TK711xx
TK71125 ELECTRICAL CHARACTERISTICS
Test Conditions: V
IN
= 3.5 V, T
A
= 25
°
C, unless otherwise specified.
L
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B
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5
.
3
=
T
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A
m
0
=
0
3
1
0
0
3
A
µ
V
N
I
I
,
V
0
.
2
=
T
U
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A
m
0
=
4
.
1
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3
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2
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H
0
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=
f
,
F
µ
3
.
3
=
T
U
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A
m
0
1
=
3
6
B
d
∆
V
T
U
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/
∆
T
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T
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5
1
.
0
C
°
/
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V
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.
4
=
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m
0
=
0
3
1
0
0
3
A
µ
V
N
I
I
,
V
5
.
2
=
T
U
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A
m
0
=
4
.
1
0
.
3
A
m
V
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V
N
I
I
,
V
0
.
4
=
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U
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m
0
1
=
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.
2
0
.
3
1
.
3
V
V
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=
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V
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,
V
0
.
4
=
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U
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m
0
3
=
5
.
1
5
.
3
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