TK113xxB
VOLTAGE REGULATOR WITH ON/OFF SWITCH
FEATURES
s
High Voltage Precision at
鹵
2.0%
s
Active Low On/Off Control
s
Very Low Dropout Voltage 80 mV at 30 mA
s
Very Low Noise
s
Very Small SOT-23L or SOT-89-5 Surface Mount
Packages
s
Internal Thermal Shutdown
s
Short Circuit Protection
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
The TK113xxB is available in either 6 pin SOT-23L or 5 pin
SOT-89-5 surface mount packages.
DESCRIPTION
The TK113xxB is a low dropout linear regulator with a built-
in electronic switch. The device is in the ON state when the
control pin is pulled to a low level. An external capacitor can
be connected to the noise bypass pin to lower the output
noise level to 30
碌Vrms.
An internal PNP pass transistor is used to achieve a low
dropout voltage of 80 mV (typ.) at 30 mA load current. The
TK113xxB has a very low quiescent current of 170
碌A(chǔ)
at no
load and 1 mA with a 30 mA load. The standby current is
typically 100 nA. The internal thermal shutdown circuitry
limits the junction temperature to below 150
擄C.
The load
current is internally monitored and the device will shutdown
in the presence of a short circuit or overcurrent condition at
the output.
TK113XXB
20Q
CONTROL 1
GND
2
6 V
IN
5
4
GND
V
OUT
NOISE
3
BYPASS
NOISE
BYPASS
1
6
5
4
VOUT
GND
VIN
GND 2
CONTROL 3
ORDERING INFORMATION
TK113
Voltage Code
B
C
Tape/Reel Code
Package Code
V
IN
S
S
S
S
S
S
BLOCK DIAGRAM
V
OUT
VOLTAGE CODE
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
48 = 4.8 V
49 = 4.9 V
50 = 5.0 V
55 = 5.5 V
60 = 6.0 V
80 = 8.0 V
PACKAGE CODE
M: SOT-23L
U: SOT-89-5
TAPE/REEL CODE
L : Tape Left
(SOT-23L)
B : Tape Bottom
(SOT-89-5)
CONTROL
S
THERMAL
PROTECTION
S
鈥?/div>
S
S
S
+
鈥?/div>
S
+
S
S
S
S
BANDGAP
REFERENCE
S
S
S
GND
NOISE BYPASS
May, 1997 TOKO, Inc.
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