TOKO TK11380BUCB, TK11350BUCB, TK11350BMCL, TK11349BUCB, TK11349BMCL Datasheet

TK113xxB

VOLTAGE REGULATOR WITH ON/OFF SWITCH

FEATURES

■ High Voltage Precision at ± 2.0%

■ 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

DESCRIPTION

The TK113xxB is a low dropout linear regulator with a built­in 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 µVrms.

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 µA 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.

APPLICATIONS

■ Battery Powered Systems

■ Cellular Telephones

■ Pagers

■ Personal Communications Equipment

■ Portable Instrumentation

■ Portable Consumer Equipment

■ Radio Control Systems

■ Toys

■ Low Voltage Systems

The TK113xxB is available in either 6 pin SOT-23L or 5 pin
SOT-89-5 surface mount packages.

TK113XXB

GND

NOISE

GND

1

2 5

3

1

2

64V

6

5

IN

GND

V

OUT

V

OUT

GND

20Q

CONTROL

BYPASS

NOISE

BYPASS

V

4

IN

S

V

OUT

S

S

GND

Voltage Code

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
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 B

PACKAGE CODE

M: SOT-23L
U: SOT-89-5

C

Tape/Reel Code

TAPE/REEL CODE

L : Tape Left
(SOT-23L)
B : Tape Bottom
(SOT-89-5)

Package Code

V

CONTROL

CONTROL

3

BLOCK DIAGRAM

S

S

IN

S

S

S

S

BANDGAP

REFERENCE

THERMAL

PROTECTION

–

S

+

S

S

SS

S

NOISE BYPASS

S

+

S

–

S

S

May, 1997 TOKO, Inc. Page 1

TK113xxB

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: T

SYMBOL PARAMETER TEST CONDITIONS MIN TYP MAX UNITS

= 25 °C, unless otherwise specified.

A

Reverse Bias............................................................ 10 V

Storage Temperature Range ................... -55 to +150 °C

Operating Temperature Range ...................-30 to +80 °C

Voltage Range ............................................ 1.8 to 14.5 V

Junction Temperature ........................................... 150 °C

I

Q

I

STBY

V

O

Quiescent Current I

= 0 mA, Except I

OUT

CONT

170 250 µA
Standby Current VIN = 8 V, at output off 0.1 µA
Output Voltage I

= 30 mA See table 1 V

OUT

Line Reg Line Regulation VO ≤ 5.5 V (Note 2) 3.0 20 mV
Load Reg Load Regulation I

V

DROP

I

OUT

Dropout Voltage I
Continuous Output Current I

= 1 mA → 60 mA (Note 3) 6 30 mV

OUT

I

= 1 mA → 100 mA (Note 3) 18 90 mV

OUT

= 60 mA 0.12 0.24 V

OUT
OUT

when V

drops 0.3 V 150 mA

OUT

from VO (typ) (Note 3)

RR Ripple Rejection f = 400 Hz, CL= 10 µF, CN = 0.1 µF55 dB

VIN = V

+ 1.5 V, I

OUT

= 30 mA,

OUT

(Note 4)

V

NO

Output Noise Voltage 10 Hz ≤ f ≤ 80 KHz, 30 µVrms
VCN = V

+ 1.5 V, I

OUT

= 60 mA,

OUT

CL = 10 µF, CN = 0.1 µF, (Notes 4,5)

I

OUT (PULSE)

V

Noise Bypass Terminal Voltage 1.25 V

REF

Pulse Output Current 5 ms pulse, 12.5% duty cycle 200 mA

Control Terminal Specification

I

CONT

V

CONT

∆VO/T

A

Control Current Output on, V
Control Voltage

Output Voltage Temperature I

Output on VIN-1.8 V
Output off

= 10 mA 0.09 mV/°C

OUT

= 1.8 V 12 35 µA

CONT

VIN-0.6

V

Coefficient

Note 1: When mounted as recommended. Derate at 4.8 mW/°C for SOT-23L and 6.4 mW/°C for SOT-89-5 packages when ambient

temperatures are over 25 °C.
Note 2: For Line Regulation V
Note 3: Refer to Definition of Terms.
Note 4: Ripple Rejection and noise voltage are affected by the value and characteristics of the capacitor used.

Note 5: Output noise voltage can be reduced by connecting a capacitor to a noise pass terminal.
Gen. Note: Parameters with min. or max. values are 100% tested at T

> 5.6 V, Typ and Max values are 15 and 40 mV.

O

= 25 °C.

A

Page 2 May, 1997 TOKO, Inc.

TK113xxB ELECTRICAL CHARACTERISTICS (Table 1)

TK113xxB

Output Voltage VIN Max V

Voltage Code Voltage

2.0 V 20 1.94 V 2.06 V 3.0 V

2.1 V 21 2.04 V 2.16 V 3.1 V

2.2 V 22 2.14 V 2.26 V 3.2 V

2.3 V 23 2.24 V 2.36 V 3.3 V

2.4 V 24 2.34 V 2.46 V 3.4 V

2.5 V 25 2.44 V 2.56 V 3.5 V

2.6 V 26 2.54 V 2.66 V 3.6 V

2.7 V 27 2.64 V 2.76 V 3.7 V

2.8 V 28 2.74 V 2.86 V 3.8 V

2.9 V 29 2.84 V 2.96 V 3.9 V

3.0 V 30 2.94 V 3.06 V 4.0 V

3.1 V 31 3.04 V 3.16 V 4.1 V

3.2 V 32 3.14 V 3.26 V 4.2 V

3.3 V 33 3.24 V 3.36 V 4.3 V

3.4 V 34 3.335 V 3.465 V 4.4 V

3.5 V 35 3.435 V 3.565 V 4.5 V

3.6 V 36 3.535 V 3.665 V 4.6 V

Max Test

OUT

Output Voltage VIN Max V

Voltage Code Voltage

3.7 37 3.630 3.770 4.7

3.8 38 3.725 3.875 4.8

3.9 39 3.825 3.975 4.9

4.0 40 3.920 4.080 5.0

4.1 41 4.020 4.180 5.1

4.2 42 4.120 4.280 5.2

4.3 43 4.215 4.385 5.3

4.4 44 4.315 4.485 5.4

4.5 45 4.410 4.590 5.5

4.6 46 4.510 4.690 5.6

4.7 47 4.605 4.795 5.7

4.8 48 4.705 4.895 5.8

4.9 49 4.800 5.000 5.9

5.0 50 4.900 5.100 6.0

5.5 55 5.390 5.610 6.5

6.0 60 5.880 6.120 7.0

8.0 80 7.840 8.160 9.0

Max Test

OUT

May, 1997 TOKO, Inc. Page 3

TK113xxB

TEST CIRCUITS

SOT-23L SOT-89-5

I

IN

V

IN

V

CONT

+
_

A

+
_

+

V

I

CONT

CONT

IN

1

23

1 µF

S

A

V

TYPICAL PERFORMANCE CHARACTERISTICS

OUTPUT VOLTAGE RESPONSE

(OFF→ ON)

CL = 2.2 µF

Cn = 0.01 µF

V

OUT

456

SS

+

Noise Bypass

0.1 µF

V

O

S

I

2.2 µF

V

O

Transient Response

V

IN

CONT

+

TA = 25 °C unless otherwise specified

VO (5 mV/Div)

113XXB

Rs

1 µF

C

P

0.1 µF

LOAD REGULATION

+

V

IN

V

V

OUT

CL = 10 µF

to 0.22

V

S

I

O

O

SS

+

2.2 µF

NOISE

BYPASS

0.1 µF



•Connect pin 5 to
ground for heat sink



I

V

IN

IN

+

1

456

23

CONT

I

CONT

1.0 µF

A

SHORT CIRCUIT CURRENT

5

4

A

+
_

V

IN

S

+

V

V

CONT

_

VO TYP

Cn = 0.1 µF

I

= 30 mA

LOAD

T=0 200 400 600

TIME (µS)

OUTPUT VOLTAGE vs. INPUT

VOLTAGE

V

(25mV/Div)

OUT

IO = 0 mA

IO = 30 mA

IO = 50 mA

IO = 90 mA

V

IN

= V

OUT

0

VIN (V)
(50 mV/Div)

800

TYP

OUT

V

VO TYP

3

(V)

O

V

2

1

0 50 100

I

(mA)

OUT

LINE REGULATION

0

0 300

150

IO (mA)

OUTPUT CURRENT vs.

DROPOUT VOLTAGE

50 mV/Div

0

-100

(mV)

-200

DROP

-300

V

-400

020

10

V

(V)

IN

0 200

100

IO (mA)

Page 4 May, 1997 TOKO, Inc.