TOKO TK11250BUIB, TK11250BUCB, TK11250BMIL, TK11250BMCL, TK11249BUIB Datasheet

TK112xxB

20P

VOLT AGE REGULATOR WITH ON/OFF SWITCH

FEATURES

■ High Voltage Precision at ± 2.0%

■ Active High On/Off Control

■ Very Low Dropout Voltage 80 mV at 30 mA

■ Very Low Noise

■ Very Small SOT-23L or SOT-89 Surface Mount

Packages

■ Internal Thermal Shutdown

■ Short Circuit Protection

DESCRIPTION

The TK112xxB is a low dropout linear regulator with a built­in electronic switch. The internal switch can be controlled
by TTL or CMOS logic levels. The device is in the “on” state
when the control pin is pulled to a logic high 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
TK112xxB 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 shut down circuitry
limits the junction temperature to below 150 °C. The load
current is internally monitored and the device will shut
down in the presence of a short circuit or overcurrent
condition at the output.

ORDERING INFORMATION

APPLICATIONS

■ Battery Powered Systems

■ Cellular Telephones

■ Pagers

■ Personal Communications Equipment

■ Portable Instrumentation

■ Portable Consumer Equipment

■ Radio Control Systems

■ Toys

■ Low Voltage Systems

The TK112xxB is available in either a 6-pin SOT-23L or a
5-pin SOT-89 surface mount package.

TK112xxB

V

IN

GND

V

OUT

V

GND

OUT

IN

SOT-23L

SOT-89

CONTROL

GND

NOISE BYPASS

NOISE BYPASS

GND

CONTROL V

TK112 B

Voltage Code

Package Code

VOLTAGE CODE

13 = 1.3 V 33 = 3.3 V
14 = 1.4 V 34 = 3.4 V
15 = 1.5 V 35 = 3.5 V
16 = 1.6 V 36 = 3.6 V
17 = 1.7 V 37 = 3.7 V
18 = 1.8 V 38 = 3.8 V
19 = 1.9 V 39 = 3.9 V
20 = 2.0 V 40 = 4.0 V
21 = 2.1 V 41 = 4.1 V
22 = 2.2 V 42 = 4.2 V
23 = 2.3 V 43 = 4.3 V
24 = 2.4 V 44 = 4.4 V
25 = 2.5 V 45 = 4.5 V
26 = 2.6 V 46 = 4.6 V
27 = 2.7 V 47 = 4.7 V
28 = 2.8 V 48 = 4.8 V
29 = 2.9 V 49 = 4.9 V
30 = 3.0 V 50 = 5.0 V
31 = 3.1 V 55 = 5.5 V
32 = 3.2 V 80 = 8.0 V

PACKAGE CODE:

M: SOT-23L
U: SOT-89

NOTE 1:

1.3 V to 1.9 V available
in SOT-23L package only.

NOTE 2:

1.3 V to 2.4 V available
in C temperature code

C) only.

(-30 to +80

Tape/Reel Code
Temp. Code

TAPE/REEL CODE

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

TEMP. CODE:

C: -30 to +80 C
I: -40 to +85

C

V

CONTROL

IN

October 1999 TOKO, Inc. Page 1

BLOCK DIAGRAM

THERMAL

PROTECTION

BANDGAP

REFERENCE

NOISE

BYPASS

V

GND

OUT

TK112xxB

ABSOLUTE MAXIMUM RATINGS TK112xxBC (V

Supply Voltage ......................................................... 16 V

Power Dissipation SOT-23L (Note1).................. 600 mW

Power Dissipation SOT-89 (Note1).................... 900 mW

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

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

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

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

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

OUT

TK112xxBC ELECTRICAL CHARACTERISTICS (V

Test conditions: T

LOBMYSRETEMARAPSNOITIDNOCTSETNIMPYTXAMSTINU

I

Q

I

YBTS

V

TUO

geReniLnoitalugeReniL

geRdaoLnoitalugeRdaoL

V

PORD

I

TUO

I

)ESLUP(TUO

RRnoitcejeRelppiR

V

ON

V

fer

= 25 °C, unless otherwise specified.

A

tnerruCtnecseiuQI

tnerruCybdnatSV

egatloVtuptuOI

egatloVtuoporD

TUO

NI

TUO

V

≤ )2etoN(,V5.50.302Vm

TUO

V

≥ )2etoN(,V6.55104Vm

TUO

I

TUO

I

TUO

I

TUO

I

TUO

I

TUO

tnerruCtuptuOsuounitnoC)2etoN(051Am

tnerruCtuptuOesluPelcycytud%5.21,eslupsm5081Am

VNIV=
V

ELPPIR

zH01 ≤ f ≤ C,zHk08

egatloVesioNtuptuO

C

N

I

TUO

lanimreTssapyBesioN

egatloV

IgnidulcxE,Am0=

TNOC

FFOtuptuO,V8=1.0Aµ

Am03=1elbaTeeSV

)2etoN(,Am06ot1=603Vm

)2etoN(,Am001ot1=8106Vm
)2etoN(,Am051ot1=3209Vm

)2etoN(,Am06=21.002.0V

)2etoN(,Am051=62.093.0V

C,zH004=f

L

TUO

V,Fµ1.0=

NC

C,Fµ01=

N

I,V5.1+

TUO

L

V=

TUO

)4,3setoN(,Am06=

≥ 2.0 V)

≥ 2.0 V)

OUT

,Fµ1.0=

,Am03=

)3etoN(,smrVm001=

,Fµ01=

,V5.1+

071052Aµ

06Bd

03smrVµ

52.1V

∆V

TUO

/∆T

tneiciffeoCerutarepmeTI

TUO

Am01=04C°/mpp

SNOITACIFICEPSLANIMRETLORTNOC

I

TNOC

V
V

Note 1: When mounted as recommended. Derate at 4.8 mW/°C for SOT-23L and 6.4 mW/°C for SOT-89 packages for operation above 25°C.
Note 2: Refer to “Definition of Terms.”
Note 3: Ripple rejection and noise voltage are affected by the value and characteristics of the capacitor used.
Note 4: 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 TA = 25 °C.

)NO(TNOC

)FFO(TNOC

tnerruClortnoCV

TNOC

NOtuptuO,V8.1=2153Aµ

NOegatloVlortnoCNOtuptuO8.1V

FFOegatloVlortnoCFFOtuptuO6.0V

Page 2 October 1999 TOKO, Inc.

TK112xxB

ABSOLUTE MAXIMUM RATINGS TK1121xBC (V

Supply Voltage ......................................................... 16 V

Power Dissipation SOT-23L (Note1).................. 600 mW

Power Dissipation SOT-89 (Note1).................... 900 mW

Reverse Bias.............................................................. 7 V

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

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

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

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

OUT

TK1121xBC ELECTRICAL CHARACTERISTICS (V

Test conditions: T

LOBMYSRETEMARAPSNOITIDNOCTSETNIMPYTXAMSTINU

I

Q

I

YBTS

V

TUO

geReniLnoitalugeReniL)2etoN(0.302Vm

geRdaoLnoitalugeRdaoL

I

TUO

I

)ESLUP(TUO

= 25 °C, unless otherwise specified.

A

tnerruCtnecseiuQI

tnerruCybdnatSV

egatloVtuptuOI

TUO

NI

TUO

I

TUO

I

TUO

V4.2 ≤ V

tnerruCtuptuOsuounitnoC

V

≥ )2etoN(,V6.2051Am

NI

tnerruCtuptuOesluP

IgnidulcxE,Am0=

TNOC

FFOtuptuO,V8=1.0Aµ

Am03=2elbaTeeSV

)2etoN(,Am06ot1=603Vm

)2etoN(,Am001ot1=8106Vm

≤ )2etoN(,V6.2031Am

NI

≥ ,V6.2

V,eslupsm5

NI

elcycytud%5.21

≤ 1.9 V)

≤ 1.9 V)

OUT

071052Aµ

081Am

RRnoitcejeRelppiR

V

ON

V

fer

∆V

/∆T

TUO

C,zH004=f

V

V=

NI

V

ELPPIR

L

TUO

zH01 ≤ f ≤ C,zHk08

egatloVesioNtuptuO

C

N

I

TUO

V,Fµ1.0=

NC

lanimreTssapyBesioN

egatloV

tneiciffeoCerutarepmeTI

TUO

Am01=04C°/mpp

C,Fµ01=

N

I,V5.1+

TUO

,Fµ1.0=

,Am03=

55Bd

)3etoN(,smrVm001=

L

V=

TUO

,Fµ01=

,V5.1+

03smrVµ

)4,3setoN(,Am06=

52.1V

SNOITACIFICEPSLANIMRETLORTNOC

I

TNOC

V
V

Note 1: When mounted as recommended. Derate at 4.8 mw/°C for SOT-23L and 6.4 mw/°C for SOT-89 packages for operation above 25 °C.
Note 2: Refer to “Definition of Terms.”
Note 3: Ripple rejection and noise voltage are affected by the value and characteristics of the capacitor used.
Note 4: 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 TA = 25 °C.

)NO(TNOC

)FFO(TNOC

tnerruClortnoCV

TNOC

NOtuptuO,V8.1=2153Aµ

NOegatloVlortnoCNOtuptuO8.1V

FFOegatloVlortnoCFFOtuptuO6.0V

October 1999 TOKO, Inc. Page 3

TK112xxB

ABSOLUTE MAXIMUM RATINGS TK112xxBI (V

Supply Voltage ......................................................... 16 V

Power Dissipation SOT-23L (Note1).................. 600 mW

Power Dissipation SOT-89 (Note1).................... 900 mW

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

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

Operating Temperature Range ...................-40 to +85 °C

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

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

OUT

TK112xxBI ELECTRICAL CHARACTERISTICS (V

Test conditions: T

LOBMYSRETEMARAPSNOITIDNOCTSETNIMPYTXAMSTINU

I

Q

I

YBTS

V

TUO

geReniLnoitalugeReniL

geRdaoLnoitalugeRdaoL

V

PORD

I

TUO

I

)ESLUP(TUO

RRnoitcejeRelppiR

V

ON

V

fer

= -40 to 85 °C, unless otherwise specified.

A

tnerruCtnecseiuQI

tnerruCybdnatSV

egatloVtuptuOI

egatloVtuoporD

TUO

NI

TUO

V

TUO

V

TUO

I

TUO

I

TUO

I

TUO

I

TUO

I

TUO

Am03=3elbaTeeSV

≤ )2etoN(,V5.50.352Vm

tnerruCtuptuOsuounitnoC)2etoN(051Am

tnerruCtuptuOesluPelcycytud%5.21,eslupsm5081Am

C,zH004=f
VNIV=
V

ELPPIR

L

TUO

zH01 ≤ f ≤ C,zHk08

egatloVesioNtuptuO

C

N

I

TUO

V,Fµ1.0=

lanimreTssapyBesioN

egatloV

IgnidulcxE,Am0=

TNOC

FFOtuptuO,V8=2.0Aµ

)2etoN(,V6.55104Vm

)2etoN(,Am06ot1=604Vm

)2etoN(,Am001ot1=8108Vm
)2etoN(,Am051ot1=32011Vm

)2etoN(,Am06=21.032.0V

)2etoN(,Am051=62.004.0V

C,Fµ01=

N

I,V5.1+

TUO

L

V=

NC

TUO

)4,3setoN(,Am06=

≥ 2.5 V)

≥ 2.5 V)

OUT

,Fµ1.0=

,Am03=

)3etoN(,smrVm001=

,Fµ01=

,V5.1+

071003Aµ

06Bd

03smrVµ

52.1V

∆V

TUO

/∆T

tneiciffeoCerutarepmeTI

TUO

Am01=04C°/mpp

SNOITACIFICEPSLANIMRETLORTNOC

I

TNOC

V
V

Note 1: When mounted as recommended. Derate at 4.8 mw/°C for SOT-23L and 6.4 mw/°C for SOT-89 packages for operation above 25 °C.
Note 2: Refer to “Definition of Terms.”
Note 3: Ripple rejection and noise voltage are affected by the value and characteristics of the capacitor used.
Note 4: 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 TA = 25 °C.
Gen Note: For Line Regulation, typ. and max. is changed to V

)NO(TNOC

)FFO(TNOC

tnerruClortnoCV

TNOC

NOtuptuO,V8.1=2104Aµ

NOegatloVlortnoCNOtuptuO0.2V

FFOegatloVlortnoCFFOtuptuO5.0V

> 5.6 V.

OUT

Page 4 October 1999 TOKO, Inc.

TK112xxBMC ELECTRICAL CHARACTERISTICS TABLE 1

Test conditions: T

Output Voltage V

Voltage Code Voltage

1.3 V 13 1.240 V 1.36 V 2.4 V

1.4 V 14 1.340 V 1.46 V 2.4 V

1.5 V 15 1.440 V 1.560 V 2.4 V

1.6 V 16 1.540 V 1.660 V 2.4 V

1.7 V 17 1.640 V 1.760 V 2.4 V

1.8 V 18 1.740 V 1.860 V 2.4 V

1.9 V 19 1.804 V 1.960 V 2.4 V

= 25 °C, I

A

OUT(MIN)

= 30 mA, unless otherwise specified.

OUT

V

OUT(MAX)

Test

TK112xxBC ELECTRICAL CHARACTERISTICS TABLE 2

Test conditions: T

Output Voltage V

Voltage Code Voltage

2.0 V 20 1.940 V 2.060 V 3.0 V

2.1 V 21 2.040 V 2.160 V 3.1 V

2.2 V 22 2.140 V 2.260 V 3.2 V

2.3 V 23 2.240 V 2.360 V 3.3 V

2.4 V 24 2.340 V 2.460 V 3.4 V

2.5 V 25 2.440 V 2.560 V 3.5 V

2.6 V 26 2.540 V 2.660 V 3.6 V

2.7 V 27 2.640 V 2.760 V 3.7 V

2.8 V 28 2.740 V 2.860 V 3.8 V

2.9 V 29 2.840 V 2.960 V 3.9 V

3.0 V 30 2.940 V 3.060 V 4.0 V

3.1 V 31 3.040 V 3.160 V 4.1 V

3.2 V 32 3.140 V 3.260 V 4.2 V

3.3 V 33 3.240 V 3.360 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

= 25 °C, I

A

OUT(MIN)

= 30 mA, unless otherwise specified.

OUT

V

OUT(MAX)

Test

Output Voltage V

Voltage Code Voltage

3.7 V 37 3.630 V 3.770 V 4.7 V

3.8 V 38 3.725 V 3.875 V 4.8 V

3.9 V 39 3.825 V 3.975 V 4.9 V

4.0 V 40 3.920 V 4.080 V 5.0 V

4.1 V 41 4.020 V 4.180 V 5.1 V

4.2 V 42 4.120 V 4.280 V 5.2 V

4.3 V 43 4.215 V 4.385 V 5.3 V

4.4 V 44 4.315 V 4.485 V 5.4 V

4.5 V 45 4.410 V 4.590 V 5.5 V

4.6 V 46 4.510 V 4.690 V 5.6 V

4.7 V 47 4.605 V 4.795 V 5.7 V

4.8 V 48 4.705 V 4.895 V 5.8 V

4.9 V 49 4.800 V 5.000 V 5.9 V

5.0 V 50 4.900 V 5.100 V 6.0 V

5.5 V 55 5.390 V 5.610 V 6.5 V

8.0 V 80 7.840 V 8.160 V 9.0 V

OUT(MIN)

TK112xxB

V

OUT(MAX)

Test

October 1999 TOKO, Inc. Page 5

TK112xxB

TK112xxBI ELECTRICAL CHARACTERISTICS TABLE 3

Test Conditions: VIN = V

Room Temp. Range (TA = 25 °C) Full Temp. Range (TA = -40 to +85 °C)

Output Voltage V

Voltage Code

2.5 V 25 2.440 V 2.560 V 2.400 V 2.600 V

2.6 V 26 2.540 V 2.660 V 2.500 V 2.700 V

2.7 V 27 2.640 V 2.760 V 2.600 V 2.800 V

2.8 V 28 2.750 V 2.860 V 2.700 V 2.900 V

2.9 V 29 2.840 V 2.960 V 2.800 V 3.000 V

3.0 V 30 2.940 V 3.060 V 2.900 V 3.100 V

3.1 V 31 3.040 V 3.160 V 3.000 V 3.200 V

3.2 V 32 3.140 V 3.260 V 3.095 V 3.305 V

3.3 V 33 3.240 V 3.360 V 3.190 V 3.410 V

3.4 V 34 3.335 V 3.465 V 3.290 V 3.510 V

3.5 V 35 3.435 V 3.565 V 3.385 V 3.615 V

3.6 V 36 3.535 V 3.665 V 3.485 V 3.720 V

3.7 V 37 3.630 V 3.770 V 3.580 V 3.820 V

3.8 V 38 3.725 V 3.875 V 3.675 V 3.925 V

3.9 V 39 3.825 V 3.975 V 3.770 V 4.030 V

4.0 V 40 3.920 V 4.080 V 3.870 V 4.130 V

4.1 V 41 4.020 V 4.180 V 3.965 V 4.235 V

4.2 V 42 4.120 V 4.280 V 4.060 V 4.335 V

4.3 V 43 4.215 V 4.385 V 4.160 V 4.440 V

4.4 V 44 4.315 V 4.485 V 4.255 V 4.545 V

4.5 V 45 4.410 V 4.590 V 4.350 V 4.645 V

4.6 V 46 4.510 V 4.690 V 4.450 V 4.750 V

4.7 V 47 4.605 V 4.795 V 4.545 V 4.850 V

4.8 V 48 4.705 V 4.895 V 4.640 V 4.955 V

4.9 V 49 4.800 V 5.000 V 4.740 V 5.060 V

5.0 V 50 4.900 V 5.100 V 4.835 V 5.165 V

5.5 V 55 5.390 V 5.610 V 5.320 V 5.680 V

8.0 V 80 7.840 V 8.160 V 7.745 V 8.265 V

OUT(TYP)

+ 1 V, I

= 30 mA, unless otherwise specified.

OUT

OUT(MIN)

V

OUT(MAX)

V

OUT(MIN)

V

OUT(MAX)

Page 6 October 1999 TOKO, Inc.

TK112xxB

V

(25

V/DIV)

TEST CIRCUITS

SOT-23L SOT-89

I

V

IN

IN

+

V

+

IN

V

1 µF

OUT

2.2 µF

I

V

OUT

OUT

V

OUT

I

OUT

+

2.2 µF

V

OUT

V

IN

I

IN

+

1.0 µF

+

V

IN

V

CONT

+

I

CONT

CONT

TYPICAL PERFORMANCE CHARACTERISTICS

OUTPUT VOLTAGE RESPONSE

CONT

V

OUT

V

0 200 600

(OFF→ON)

CN = 0.01 µF

400 800

TIME (µs)

CL = 2.2 µF

CN = 0.1 µF

I

= 30 mA

LOAD

NOISE

BYPASS

C

0.1 µF

NOISE

N

TRANSIENT RESPONSE

V

IN

CONT

1 µF

112XXB

R

S

C

0.1 µF

N

V

C

L = 10 µF to 0.22 µF

OUT

BYPASS

C

N

0.1 µF

CONT

I

CONT

Note: Connect pin 5 to

+

V

CONT 1

ground for heat sink

TA = 25 °C, unless otherwise specified.

LOAD REGULATION

V

(5 mV/DIV)

OUT

V

0 50 100

I

(mA)

OUT

OUT(TYP)

OUT (V)

V

SHORT CIRCUIT CURRENT

5

4

3

2

1

0

0

I

OUT

150

300

(mA)

m

OUTPUT VOLTAGE

V

OUT(TYP)

I

= 0 mA

OUT

VOLTAGE

I

OUT

VS.

= 30 mA

INPUT

LINE REGULATION

V

OUT(TYP)

-100

(mV)

-200

DROPOUT VOLTAGE

OUTPUT CURRENT

0

VS.

(50 mV/DIV)

DROP

-300

V

-400

0 200

I

OUT

100

(mA)

OUT

0V

IN

= V

VIN (V) (50 mV/DIV)

I

OUT

OUT

I

OUT

= 90 mA

= 50 mA

OUT

V

0

10

V

(V)

IN

20

October 1999 TOKO, Inc. Page 7

TK112xxB

I

(

A)

TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)

TA = 25 °C, unless otherwise specified.

GROUND CURRENT VS. OUTPUT

10

8

6

(mA)

GND

I

4

2

0

0 100 200

QUIESCENT CURRENT (ON

MODE)

2

V

OUT

(mA)

1

Q

I

CURRENT

I

OUT

VS.

=

3 V 5 V

2 V 4 V

(mA)

INPUT VOLTAGE

I

OUT

= 0 mA

REVERSE BIAS CURRENT

500

400

µ

300

REV

200

V

OUT

100

0

020

QUIESCENT CURRENT (ON

MODE) vs. INPUT VOLTAGE

1.0

(mA)

0.5

Q

I

(VIN = 0 V)

= 1.3 V

V

10

REV

V

OUT

1.9 V

(V)

I

V

OUT

= 1.9 V

OUT

UPPER

2.0 V

= 0 mA

(pA)

Q

I

(mA)

GND

I

QUIESCENT CURRENT (OFF

MODE)

100

50

0

020

2

1

VS. INPUT VOLTAGE

10

V

(V)

IN

GROUND CURRENT

I

= 60 mA

OUT

I

V

= 1.3 to 1.8 V

0

010

500

400

(mV)

300

DROP

200

V

100

0

-50 100

OUT

5

VIN (V)

DROPOUT VOLTAGE

I

= 150 mA

OUT

I

= 60 mA

OUT

I

= 30 mA

OUT

050

TA (°C)

0

05

50

40

(µA)

30

CONT

I

20

10

0

-50 100

V

= 1.3 to 1.8 V

OUT

2.5

VIN (V)

CONTROL CURRENT

V

CONT

V

CONT

050

TA (°C)

= 5 V

= 1.8 V

0

-50 100

V

CONT

2.0

(V)

1.0

CONT

V

0

-50 100

= 30 mA

OUT

050

TA (°C)

(V

, ON POINT)

OUT

R

0

TA (°C)

CONT

50

= 0 Ω

Page 8 October 1999 TOKO, Inc.