TOKO TK11250BUIB, TK11250BUCB, TK11250BMIL, TK11250BMCL, TK11249BUIB Datasheet

TK112xxB

VOLTAGE 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

APPLICATIONS

■Battery Powered Systems

■Cellular Telephones

■Pagers

■Personal Communications Equipment

■Portable Instrumentation

■Portable Consumer Equipment

■Radio Control Systems

■Toys

■Low Voltage Systems

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 Vrms.

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 A 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

TK112

B

Tape/Reel Code

Voltage Code

Package Code

Temp. 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 (-30 to +80 C) only.

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

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

20P

SOT-23L

TK112xxB

CONTROL						VIN
GND						GND
NOISE BYPASS						VOUT

	NOISE BYPASS	VOUT
	GND	GND
SOT-89	CONTROL	VIN
	BLOCK DIAGRAM
VIN		VOUT
	THERMAL
	PROTECTION
CONTROL
	BANDGAP
	REFERENCE
		GND
	NOISE
	BYPASS

October 1999 TOKO, Inc.

Page 1

TK112xxB

ABSOLUTE MAXIMUM RATINGS TK112xxBC (VOUT ≥ 2.0 V)				° C
Supply Voltage .........................................................	16 V	Storage Temperature Range ...................	-55 to +150
Power Dissipation SOT-23L (Note1) ..................	600 mW	Operating Temperature Range ...................	-30 to +80	° C
Power Dissipation SOT-89 (Note1) ....................	900 mW	Operating Voltage Range............................	1.8 to 14.5 V
Reverse Bias ............................................................	10 V	Junction Temperature ...........................................	150	° C

TK112xxBC ELECTRICAL CHARACTERISTICS (VOUT ≥			2.0 V)
Test conditions: TA = 25 ° C, unless otherwise specified.
SYMBOL	PARAMETER	TEST CONDITIONS	MIN		TYP		MAX	UNITS
IQ	Quiescent Current	IOUT = 0 mA, Excluding ICONT			170		250	µA
ISTBY	Standby Current	VIN = 8 V, Output OFF					0.1	µA
VOUT	Output Voltage	IOUT = 30 mA		See Table 1				V
Line Reg	Line Regulation	VOUT ≤ 5.5 V, (Note 2)			3.0		20	mV
		VOUT ≥ 5.6 V, (Note 2)			15		40	mV
		IOUT = 1 to 60 mA, (Note 2)			6		30	mV
Load Reg	Load Regulation
		IOUT = 1 to 100 mA, (Note 2)			18		60	mV
		IOUT = 1 to 150 mA, (Note 2)			23		90	mV
VDROP	Dropout Voltage	IOUT = 60 mA, (Note 2)			0.12		0.20	V
		IOUT = 150 mA, (Note 2)			0.26		0.39	V
IOUT	Continuous Output Current	(Note 2)					150	mA
IOUT(PULSE)	Pulse Output Current	5 ms pulse, 12.5 % duty cycle					180	mA
RR	Ripple Rejection	f = 400 Hz, CL = 10 µF, CN = 0.1 µF,
		VIN = VOUT + 1.5 V, IOUT = 30 mA,			60			dB
		VRIPPLE = 100 mVrms, (Note 3)
		10 Hz ≤ f ≤ 80 kHz, CL = 10 µF,
VNO	Output Noise Voltage	CN = 0.1 µF, VCN = VOUT + 1.5 V,			30			µVrms
		IOUT = 60 mA, (Notes 3,4)
Vref	Noise Bypass Terminal				1.25			V
	Voltage
∆ VOUT /∆ T	Temperature Coefficient	IOUT = 10 mA			40			ppm/° C
CONTROL TERMINAL SPECIFICATIONS
ICONT	Control Current	VCONT = 1.8 V, Output ON			12		35	µA
VCONT(ON)	Control Voltage ON	Output ON	1.8					V
VCONT(OFF)	Control Voltage OFF	Output OFF					0.6	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.

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October 1999 TOKO, Inc.

			TK112xxB
ABSOLUTE MAXIMUM RATINGS TK1121xBC (VOUT ≤ 1.9 V)				° C
Supply Voltage .........................................................	16 V	Storage Temperature Range ...................	-55 to +150
Power Dissipation SOT-23L (Note1) ..................	600 mW	Operating Temperature Range ...................	-30 to +80	° C
Power Dissipation SOT-89 (Note1) ....................	900 mW	Operating Voltage Range............................	1.8 to 14.5 V
Reverse Bias ..............................................................	7 V	Junction Temperature ...........................................	150	° C

TK1121xBC ELECTRICAL CHARACTERISTICS (VOUT ≤			1.9 V)
Test conditions: TA = 25 ° C, unless otherwise specified.
SYMBOL	PARAMETER	TEST CONDITIONS		MIN	TYP		MAX	UNITS
IQ	Quiescent Current	IOUT = 0 mA, Excluding ICONT			170		250	µA
ISTBY	Standby Current	VIN = 8 V, Output OFF					0.1	µA
VOUT	Output Voltage	IOUT = 30 mA		See Table 2				V
Line Reg	Line Regulation	(Note 2)			3.0		20	mV
Load Reg	Load Regulation	IOUT = 1 to 60 mA, (Note 2)			6		30	mV
		IOUT = 1 to 100 mA, (Note 2)			18		60	mV
IOUT	Continuous Output Current	2.4 V ≤ VIN ≤ 2.6 V, (Note 2)					130	mA
		VIN ≥ 2.6 V, (Note 2)					150	mA
IOUT(PULSE)	Pulse Output Current	5 ms pulse, VIN ≥ 2.6 V,					180	mA
		12.5 % duty cycle
RR	Ripple Rejection	f = 400 Hz, CL = 10 µF, CN = 0.1 µF,
		VIN = VOUT + 1.5 V, IOUT = 30 mA,			55			dB
		VRIPPLE = 100 mVrms, (Note 3)
		10 Hz ≤ f ≤ 80 kHz, CL = 10 µF,
VNO	Output Noise Voltage	CN = 0.1 µF, VCN = VOUT + 1.5 V,			30			µVrms
		IOUT = 60 mA, (Notes 3,4)
Vref	Noise Bypass Terminal				1.25			V
	Voltage
∆ VOUT /∆ T	Temperature Coefficient	IOUT = 10 mA			40			ppm/° C
CONTROL TERMINAL SPECIFICATIONS
ICONT	Control Current	VCONT = 1.8 V, Output ON			12		35	µA
VCONT(ON)	Control Voltage ON	Output ON		1.8				V
VCONT(OFF)	Control Voltage OFF	Output OFF					0.6	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.

October 1999 TOKO, Inc.

Page 3

TK112xxB

ABSOLUTE MAXIMUM RATINGS TK112xxBI (VOUT ≥ 2.5 V)				° C
Supply Voltage .........................................................	16 V	Storage Temperature Range ...................	-55 to +150
Power Dissipation SOT-23L (Note1) ..................	600 mW	Operating Temperature Range ...................	-40 to +85	° C
Power Dissipation SOT-89 (Note1) ....................	900 mW	Operating Voltage Range............................	1.8 to 14.5 V
Reverse Bias ............................................................	10 V	Junction Temperature ...........................................	150	° C

TK112xxBI ELECTRICAL CHARACTERISTICS (VOUT ≥				2.5 V)
Test conditions: TA = -40 to 85 ° C, unless otherwise specified.
SYMBOL	PARAMETER		TEST CONDITIONS		MIN		TYP		MAX	UNITS
IQ	Quiescent Current	IOUT = 0 mA, Excluding ICONT					170		300	µA
ISTBY	Standby Current	VIN = 8 V, Output OFF							0.2	µA
VOUT	Output Voltage	IOUT = 30 mA				See Table 3				V
Line Reg	Line Regulation	VOUT ≤	5.5 V,(Note 2)				3.0		25	mV
		VOUT	5.6 V,(Note 2)				15		40	mV
		IOUT = 1 to 60 mA, (Note 2)					6		40	mV
Load Reg	Load Regulation
		IOUT = 1 to 100 mA, (Note 2)					18		80	mV
		IOUT = 1 to 150 mA, (Note 2)					23		110	mV
VDROP	Dropout Voltage	IOUT = 60 mA, (Note 2)					0.12		0.23	V
		IOUT = 150 mA, (Note 2)					0.26		0.40	V
IOUT	Continuous Output Current	(Note 2)							150	mA
IOUT(PULSE)	Pulse Output Current	5 ms pulse, 12.5 % duty cycle							180	mA
		f = 400 Hz, CL = 10 µF, CN = 0.1 µF,
RR	Ripple Rejection	VIN = VOUT + 1.5 V, IOUT = 30 mA,					60			dB
		VRIPPLE = 100 mVrms, (Note 3)
		10 Hz ≤ f ≤ 80 kHz, CL = 10 µF,
VNO	Output Noise Voltage	CN = 0.1 µF, VCN = VOUT + 1.5 V,					30			µVrms
		IOUT = 60 mA, (Notes 3,4)
Vref	Noise Bypass Terminal						1.25			V
	Voltage
∆ VOUT /∆ T	Temperature Coefficient	IOUT = 10 mA					40			ppm/° C
CONTROL TERMINAL SPECIFICATIONS
ICONT	Control Current	VCONT = 1.8 V, Output ON					12		40	µA
VCONT(ON)	Control Voltage ON	Output ON			2.0					V
VCONT(OFF)	Control Voltage OFF	Output OFF							0.5	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 VOUT > 5.6 V.

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October 1999 TOKO, Inc.

TK112xxB

TK112xxBMC ELECTRICAL CHARACTERISTICS TABLE 1

Test conditions: TA = 25 ° C, IOUT = 30 mA, unless otherwise specified.

Output	Voltage	VOUT(MIN)	VOUT(MAX)	Test
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

TK112xxBC ELECTRICAL CHARACTERISTICS TABLE 2

Test conditions: TA = 25 ° C, IOUT = 30 mA, unless otherwise specified.

Output	Voltage	VOUT(MIN)	VOUT(MAX)	Test
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

Output	Voltage	VOUT(MIN)	VOUT(MAX)	Test
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

October 1999 TOKO, Inc.

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TK112xxB

TK112xxBI ELECTRICAL CHARACTERISTICS TABLE 3

Test Conditions: VIN = VOUT(TYP) + 1 V, IOUT = 30 mA, unless otherwise specified.

		Room Temp. Range (TA = 25 ° C)		Full Temp. Range (TA = -40 to +85 ° C)
Output	Voltage	VOUT(MIN)	VOUT(MAX)	VOUT(MIN)	VOUT(MAX)
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

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October 1999 TOKO, Inc.

TK112xxB

	TEST CIRCUITS
SOT-23L	SOT-89

IIN	IIN

VIN				IOUT	VOUT			VOUT	IOUT
	+		VIN
+				VOUT
		1 µF		2.2 µF
		CONT		NOISE	TRANSIENT RESPONSE
				BYPASS
VCONT +				CN
	ICONT			0.1 µF
					VIN		112XXB		VOUT
						RS
					CONT		CN
						1 µF	0.1 µF	CL = 10 µF to 0.22 µF

VOUT	VIN	+		+
+
2.2 µF			1.0 µF	VIN
NOISE	CONT
BYPASS
CN				+
0.1 µF		ICONT
				VCONT 1

Note: Connect pin 5 to ground for heat sink

TYPICAL PERFORMANCE CHARACTERISTICS

TA = 25 ° C, unless otherwise specified.

OUTPUT VOLTAGE RESPONSE

(OFF→ ON)

		CL = 2.2 µF
	CONT	CN = 0.01 µF
		mV/DIV)
	V
		(5
		OUT
		V
	OUT	CN = 0.1 µF
	V	ILOAD = 30 mA

0	200	400	600	800
		TIME (µs)

LOAD REGULATION

SHORT CIRCUIT CURRENT

				5
	VOUT(TYP)			4
			(V)	3
			OUT
			V	2
				1
0	50	100		0	150	300
				0
	IOUT (mA)				IOUT (mA)

OUTPUT VOLTAGE VS. INPUT

VOLTAGE

		VOUT(TYP)
mV/DIV)	IOUT = 0 mA
		IOUT = 30 mA
(25
OUT		IOUT = 50 mA
V		IOUT = 90 mA
	0	VIN = VOUT

VIN (V) (50 mV/DIV)

	DROPOUT VOLTAGE VS.
LINE REGULATION	OUTPUT CURRENT

	VOUT(TYP)			0
mV/DIV)(50			DROP	-100
			(mV)
				-200
OUT			V	-300
V
				-400
0	10	20		0	100	200
	VIN (V)				IOUT (mA)

October 1999 TOKO, Inc.

Page 7

TK112xxB

TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)

TA = 25 ° C, unless otherwise specified.

			GROUND CURRENT VS. OUTPUT																							REVERSE BIAS CURRENT
																												(VIN = 0 V)
						CURRENT
	10																					500
(mA)	8																				(µA)	400
	6																					300										1.9 V					UPPER
GND																					REV
																																					2.0 V
	4																				I	200
I																									VOUT = 1.3 V
	2																					100
	0																					0
																						0			10																	20
		0	100														200
						IOUT (mA)																						VREV (V)
				QUIESCENT CURRENT (ON																						QUIESCENT CURRENT (ON
				MODE) VS. INPUT VOLTAGE																					MODE) vs. INPUT VOLTAGE
	2									IOUT = 0 mA												1.0													IOUT = 0 mA
																																	V		OUT

(mA)		VOUT =			(mA)		VOUT = 1.9 V
	1	3 V	5 V			0.5
Q					Q
I					I
		2 V	4 V
	0	VOUT = 1.3 to 1.8 V				0	VOUT = 1.3 to 1.8 V
	0		5	10		0	2.5	5
			VIN (V)				VIN (V)

QUIESCENT CURRENT (OFF

MODE) VS. INPUT VOLTAGE

(pA)	100
	50
Q
I
	0
					10																			20
	0
											VIN (V)
							GROUND CURRENT
	2
(mA)							IOUT = 60 mA
GND	1
I
	0								IOUT = 30 mA
	-50				0											50								100
											TA (° C)

					DROPOUT VOLTAGE
	500
(mV)	400
	300									IOUT = 150 mA
DROP
	200											IOUT = 60 mA
V	100
	0											IOUT = 30 mA
	-50			0				50											100
								TA (° C)

ICONT (µA)

				CONTROL CURRENT
50
40
									VCONT = 5 V
30
20
10									VCONT = 1.8 V
0
		0					50
-50														100
							TA (° C)

VCONT (V)

VCONT (VOUT, ON POINT)

2.0

R

CONT = 0 Ω

1.0

0 -50 0 50 100

TA (° C)

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October 1999 TOKO, Inc.