TOKO TK11380BUCB, TK11350BUCB, TK11350BMCL, TK11349BUCB, TK11349BMCL Datasheet

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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

APPLICATIONS

■Battery Powered Systems

■Cellular Telephones

■Pagers

■Personal Communications Equipment

■Portable Instrumentation

■Portable Consumer Equipment

■Radio Control Systems

■Toys

■Low Voltage Systems

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.

ORDERING INFORMATION

TK113

B C

Voltage Code

Tape/Reel Code

Package Code

VOLTAGE CODE

PACKAGE CODE

TAPE/REEL CODE

20 = 2.0 V

37 = 3.7 V

M: SOT-23L

L : Tape Left

21 = 2.1 V

38 = 3.8 V

U: SOT-89-5

(SOT-23L)

22 = 2.2 V

39 = 3.9 V

B : Tape Bottom

23 = 2.3 V

40 = 4.0 V

(SOT-89-5)

24 = 2.4 V

41 = 4.1 V

25 = 2.5 V

42 = 4.2 V

26 = 2.6 V

43 = 4.3 V

27 = 2.7 V

44 = 4.4 V

28 = 2.8 V

45 = 4.5 V

29 = 2.9 V

46 = 4.6 V

30 = 3.0 V

47 = 4.7 V

31 = 3.1 V

48 = 4.8 V

32 = 3.2 V

49 = 4.9 V

33 = 3.3 V

50 = 5.0 V

34 = 3.4 V

55 = 5.5 V

35 = 3.5 V

60 = 6.0 V

36 = 3.6 V

80 = 8.0 V

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

20Q

TK113XXB


CONTROL	1		6	VIN
GND	2		5	GND
NOISE				V
NOISE	3		4	V
BYPASS				OUT
BYPASS				OUT
NOISE
NOISE	1	6		VOUT
BYPASS	1	6		VOUT

GND	2	5	GND
CONTROL	3	4	VIN

BLOCK DIAGRAM

VIN	S	S	S	S	S			S	VOUT
VIN									VOUT
					THERMAL
					PROTECTION
	S
						S
					–		+	S
					–		+
CONTROL		S				S
		S			+		–
				S
				S
			S
				S	S	S
				BANDGAP
				REFERENCE
				S		S		S	GND
									GND

NOISE BYPASS

May, 1997 TOKO, Inc.

Page 1

TK113xx B

ABSOLUTE MAXIMUM RATINGS

Supply Voltage .........................................................	16 V	Reverse Bias ............................................................	10 V
Output Current ....................................................	260 mA	Storage Temperature Range ...................	-55 to +150	°C
Power Dissipation ...............................................	(Note 1)	Operating Temperature Range ...................	-30 to +80	°C
SOT-23L .........................................................	600 mW	Voltage Range ............................................	1.8 to 14.5 V
SOT-89-5 .......................................................	900 mW	Junction Temperature ...........................................	150 °C

TK113XXB ELECTRICAL CHARACTERISTICS

Test conditions: TA = 25 °C, unless otherwise specified.

SYMBOL	PARAMETER	TEST CONDITIONS	MIN			TYP	MAX	UNITS

IQ	Quiescent Current	IOUT = 0 mA, Except ICONT			170		250	μA
ISTBY	Standby Current	VIN = 8 V, at output off					0.1	μA
VO	Output Voltage	IOUT = 30 mA		See table 1				V
Line Reg	Line Regulation	VO ≤ 5.5 V (Note 2)			3.0		20	mV
Load Reg	Load Regulation	IOUT = 1 mA → 60 mA (Note 3)			6		30	mV
		IOUT = 1 mA → 100 mA (Note 3)			18		90	mV
VDROP	Dropout Voltage	IOUT = 60 mA			0.12		0.24	V
IOUT	Continuous Output Current	IOUT when VOUT drops 0.3 V					150	mA
		from VO (typ) (Note 3)
RR	Ripple Rejection	f = 400 Hz, CL= 10 μF, CN = 0.1 μF			55			dB
		VIN = VOUT + 1.5 V, IOUT = 30 mA,
		(Note 4)

VNO	Output Noise Voltage	10 Hz ≤ f ≤ 80 KHz,			30			μVrms
		VCN = VOUT + 1.5 V, IOUT = 60 mA,
		CL = 10 μF, CN = 0.1 μF, (Notes 4,5)

IOUT (PULSE)	Pulse Output Current	5 ms pulse, 12.5% duty cycle					200	mA
VREF	Noise Bypass Terminal Voltage				1.25			V
Control Terminal Specification

ICONT	Control Current	Output on, VCONT = 1.8 V				12	35	μA
VCONT	Control Voltage	Output on	VIN-1.8					V
		Output off					VIN-0.6	V
VO/TA	Output Voltage Temperature	IOUT = 10 mA				0.09		mV/°C
	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 VO > 5.6 V, Typ and Max values are 15 and 40 mV. 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 TA = 25 °C.

Page 2

May, 1997 TOKO, Inc.

TK113xxB

TK113xxB ELECTRICAL CHARACTERISTICS (Table 1)

Output	Voltage	VIN Max	VOUT Max	Test
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

Output	Voltage	VIN Max	VOUT Max	Test
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

May, 1997 TOKO, Inc.

Page 3

TOKO TK11380BUCB, TK11350BUCB, TK11350BMCL, TK11349BUCB, TK11349BMCL Datasheet

TK113xx B

TEST CIRCUITS

SOT-23L

SOT-89-5

I IN

OUT

2.2 F

1.0 F

2.2

NOISE

CONT

Noise Bypass

BYPASS

VCONT

CONT

0.1 F

ICONT

0.1

ICONT

Transient Response

•Connect pin 5 to

VCONT

ground for heat sink

113XXB

OUT

CONT

= 10 µF

to 0.22

1 µF

0.1 µF

TYPICAL PERFORMANCE CHARACTERISTICS

TA = 25 °C unless otherwise specified

OUTPUT VOLTAGE RESPONSE

LOAD REGULATION

(OFF→ ON)

CL = 2.2 µF

VO (5 mV/Div)

Cn = 0.01 µF

TYP

(V)

OUT

Cn = 0.1 µF

ILOAD = 30 mA

T=0

200

400

600

800

100

TIME (µS)

IOUT (mA)

SHORT CIRCUIT CURRENT

0	150	300
	IO (mA)

OUTPUT VOLTAGE vs. INPUT	LINE REGULATION
VOLTAGE

	VOUT (25mV/Div)			50 mV/Div
VO TYP			VO TYP
IO = 0 mA			VO TYP
		IO = 30 mA
		IO = 50 mA
	IO = 90 mA
0	VIN = VOUT	VIN (V)	0	10	20
		(50 mV/Div)		VIN (V)

OUTPUT CURRENT vs.

DROPOUT VOLTAGE

	0
(mV)	-100
(mV)	-200
DROP	-200
DROP	-300
V	-300
V
	-400

	0	100	200
		IO (mA)

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May, 1997 TOKO, Inc.

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