TK11345BMCL TOKOM, TK11345BMCL Datasheet

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TK11345BMCL

Manufacturer Part Number
TK11345BMCL
Description
4.5V Voltage regulator with on/off switch
Manufacturer
TOKOM
Datasheet
1.TK11345BMCL.pdf (13 pages)
FEATURES
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 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 A 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 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.
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
May, 1997 TOKO, Inc.
Voltage Code
High Voltage Precision at
Active Low On/Off Control
Very Low Dropout Voltage 80 mV at 30 mA
Very Low Noise
Very Small SOT-23L or SOT-89-5 Surface Mount
Packages
Internal Thermal Shutdown
Short Circuit Protection
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
55 = 5.5 V
60 = 6.0 V
80 = 8.0 V
ORDERING INFORMATION
TK113
PACKAGE CODE
M: SOT-23L
U: SOT-89-5
B
2.0%
C
TAPE/REEL CODE
L : Tape Left
B : Tape Bottom
Tape/Reel Code
(SOT-23L)
(SOT-89-5)
Package Code
VOLTAGE REGULATOR WITH ON/OFF SWITCH
APPLICATIONS
The TK113xxB is available in either 6 pin SOT-23L or 5 pin
SOT-89-5 surface mount packages.
CONTROL
Battery Powered Systems
Cellular Telephones
Pagers
Personal Communications Equipment
Portable Instrumentation
Portable Consumer Equipment
Radio Control Systems
Toys
Low Voltage Systems
V
IN
S
S
S
S
S
S
BLOCK DIAGRAM
REFERENCE
BANDGAP
TK113XXB
S
S
S
S
PROTECTION
THERMAL
CONTROL
CONTROL
BYPASS
BYPASS
–
+
S
NOISE
NOISE
NOISE BYPASS
GND
GND
S
S
1
2
3
1
2
3
S
S
S
TK113xxB
+
–
6
5
4
S
S
S
6
5 GND
4
Page 1
V OUT
V IN
GND
V
V
IN
OUT
V
GND
OUT

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TK11345BMCL Summary of contents

Page 1

FEATURES High Voltage Precision at Active Low On/Off Control Very Low Dropout Voltage Very Low Noise Very Small SOT-23L or SOT-89-5 Surface Mount Packages Internal Thermal Shutdown Short Circuit Protection DESCRIPTION The TK113xxB is a ...

Page 2

TK113xx B ABSOLUTE MAXIMUM RATINGS Supply Voltage ......................................................... 16 V Output Current .................................................... 260 mA Power Dissipation ............................................... (Note 1) SOT-23L ......................................................... 600 mW SOT-89-5 ....................................................... 900 mW TK113XXB ELECTRICAL CHARACTERISTICS Test conditions unless otherwise specified. ...

Page 3

TK113xxB ELECTRICAL CHARACTERISTICS (Table 1) Output Voltage V Max IN Voltage Code 2 1. 2. 2. 2. 2. ...

Page 4

TK113xx B SOT-23L CONT V CONT CONT V TYPICAL PERFORMANCE CHARACTERISTICS OUTPUT VOLTAGE RESPONSE (OFF ON 2.2 ...

Page 5

TYPICAL PERFORMANCE CHARACTERISTICS (CONT.) OUTPUT CURRENT vs. QUIESCENT CURRENT 100 I O (mA vs. QUIESCENT CURRENT (ON MODE ...

Page 6

TK113xx B TYPICAL PERFORMANCE CHARACTERISTICS (CONT.) MAXIMUM OUTPUT CURRENT 280 V OUT = 2.7 V 270 V OUT = 2 to 2.6 V 260 250 V OUT = 1.9 V 240 V OUT = 1 ...

Page 7

DEFINITION AND EXPLANATION OF TECHNICAL TERMS OUTPUT VOLTAGE ( The output voltage is specified with V and mA. O DROPOUT VOLTAGE (V ) DROP The dropout voltage is the difference between the input voltage and ...

Page 8

TK113xx B DEFINITION AND EXPLANATION OF TECHNICAL TERMS (CONT.) SOT-23L the control function is not used, connect the control terminal to ground control current can be reduced by inserting a series resistor ...

Page 9

DEFINITION AND EXPLANATION OF TECHNICAL TERMS (CONT.) ON/OFF RESPONSE WITH CONTROL AND LOAD TRANSIENT RESPONSE The turn on time depends upon the value of the output capacitor and the noise bypass capacitor. The turn on time will increase with the ...

Page 10

TK113xx B DEFINITION AND EXPLANATION OF TECHNICAL TERMS (CONT.) INPUT-OUTPUT CAPACITORS Linear regulators require an output capacitor in order to maintain regulator loop stability. This capacitor should be selected to insure stable operation over the desired temperature and load range. ...

Page 11

DEFINITION AND EXPLANATION OF TECHNICAL TERMS (CONT.) PACKAGE POWER DISSIPATION (P This is the power dissipation level at which the thermal sensor is activated. The IC contains an internal thermal sensor which monitors the junction temperature. When the junction temperature ...

Page 12

TK113xx B The maximum operating current is /( OUT PD IN(MAX ON/OFF GND SOT-23L Board Layout 750 600 Mounted as shown 450 300 150 Unmounted (°C) SOT-23L ...

Page 13

SOT-23L Voltage Code (Pin 2 and pin 5 should be grounded for heat dissipation) SOT-89-5 0.49max Product Code 1 0.49max The information furnished by TOKO, Inc. is believed to be accurate and reliable. However, TOKO reserves the right to make ...

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